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velvetleaf Abutilon theophrasti 12
Egyptian Thorn Acacia nilotica 3
timberman Acanthocinus aedilis 11
lesser pine borer Acanthocinus nodosus 1
roundheaded borer Acanthocinus obsoletus 4
ponderosa pine bark borer Acanthocinus princeps 1
pine false webworm Acantholyda erythrocephala 1
hedge maple Acer campestre 6
Amur maple Acer ginnala 10
Japanese maple Acer palmatum 4
Norway maple Acer platanoides 24
Sycamore maple Acer pseudoplatanus 4
bindweed gall mite Aceria malherbae 1
giant Ghana tiger snail Achatina achatina 1
giant East African snail Achatina fulica 12
Japanese chaff flower Achyranthes japonica 10
bacterial fruit blotch Acidovorax avenae ssp. citrulli 3
strawberry tortrix Acleris comariana 1
western blackheaded budworm Acleris gloverana 3
eastern blackheaded budworm Acleris variana 1
poplar carpenterworm Acossus centerensis 1
aspen carpenterworm Acossus populi 1
common myna Acridotheres tristis 4
walnut shoot moth Acrobasis demotella 3
pecan nut casebearer Acrobasis nuxvorella 1
eastern spruce gall adelgid Adelges abietis 5
cooley spruce gall adelgid Adelges cooleyi 6
balsam woolly adelgid Adelges piceae 6
hemlock woolly adelgid Adelges tsugae 5
alfalfa plant bug Adelphocoris lineolatus 1
summer fruit tortrix moth Adoxophyes orana 3
Asian tiger mosquito Aedes albopictus 8
jointed goatgrass Aegilops cylindrica 12
ye gu Aeginetia indica 1
tupelo borer Aegomorphus morrisii 3
bishops goutweed Aegopodium podagraria 3
grain support beetle Aegosoma scabricorne 4
common horse chestnut Aesculus hippocastanum 6
small hive beetle Aethina tumida 1
African redhead agama Agama agama africana 4
sisal Agave sisalana 2
alder leaf beetle Agelastica alni alni 1
croftonweed Ageratina adenophora 4
spotworm borer Agrilus acutipennis 3
oak borer Agrilus angustulus 2
bronze birch borer Agrilus anxius 6
rose stem girdler Agrilus aurichalceus aurichalceus 5
oak splendour beetle Agrilus biguttatus 12
twolined chestnut borer Agrilus bilineatus 6
hawthorn agrilus Agrilus crataegi 2
persimmon agrilus Agrilus fuscipennis 1
granulate poplar borer Agrilus granulatus granulatus 1
aspen root girdler Agrilus horni 4
St. John's wort beetle Agrilus hyperici 7
bronze poplar borer Agrilus liragus 3
metalic wood-boring beetle Agrilus olivicolor 1
hickory agrilus Agrilus otiosus 4
emerald ash borer Agrilus planipennis 12
metalic wood-boring beetle Agrilus populneus 3
rednecked cane borer Agrilus ruficollis 2
metalic wood-boring beetles Agrilus spp. 3
hickory spiral borer Agrilus torquatus 2
beech splendor beetle Agrilus viridis 3
metalic wood-boring beetle Agrilus vittaticollis 1
lined click beetle Agriotes lineatus 1
dusky wireworm beetle Agriotes obscurus 1
hairy root disease Agrobacterium rhizogenes 1
crown gall Agrobacterium tumefaciens 12
crested wheatgrass Agropyron cristatum 4
redtop Agrostis gigantea 1
black cutworm Agrotis ipsilon 2
tree-of-heaven Ailanthus altissima 29
carpet bugle Ajuga reptans 2
chocolate vine Akebia quinata 11
mimosa Albizia julibrissin 12
white rust Albugo occidentalis 11
white rust Albugo tragopogonis 5
chukar Alectoris chukar 3
orange spiny whitefly Aleurocanthus spiniferus 2
citrus blackfly Aleurocanthus woglumi 1
Alfalfa Mosaic Virus Alfamovirus AMV 1
garlic mustard Alliaria petiolata 16
wild onion Allium canadense 1
onions Allium spp. 1
wild garlic Allium vineale 7
ambrosia beetle Alniphagus spp. 3
European alder Alnus glutinosa 6
Egyptian geese Alopochen aegyptiacus 4
alewife Alosa pseudoharengus 4
fall cankerworm Alsophila pometaria 5
alligatorweed Alternanthera philoxeroides 12
sessile joyweed Alternanthera sessilis 1
black spot Alternaria brassicicola 4
Alternaria leaf blight Alternaria cucumerina 14
Alternaria blight Alternaria dauci 1
early blight Alternaria solani 12
Alternaria blight Alternaria tenuissima 6
prostrate pigweed Amaranthus blitoides 3
redroot pigweed Amaranthus retroflexus 6
red-lored parrot Amazona autumnalis 4
common ragweed Ambrosia artemisiifolia 5
annual ragweed Ambrosia artemisiifolia var. elatior 3
giant ragweed Ambrosia trifida 6
ambrosia beetle Ambrosiodmus funereus 1
ambrosia beetles Ambrosiodmus spp. 3
South American ground lizard Ameiva ameiva 1
Amur peppervine Ampelopsis brevipedunculata 8
European chafer Amphimallon majale 1
Mormon cricket Anabrus simplex 1
mallard Anas platyrhyncos 4
Mexican fruit fly Anastrepha ludens 1
fruit flies Anastrepha spp. 1
Caribbean fruit fly Anastrepha suspensa 1
broomsedge bluestem Andropogon virginicus 4
oak stem borer Aneflomorpha subpubescens 3
oak twig pruners Anelaphus spp. 1
southeastern gray twig pruner Anelaphus villosus 4
seed-gall nematode Anguina funesta 2
wheat seed-gall nematode Anguina tritici 6
Eastern filbert blight Anisogramma anomala 11
Peigler's oakworm moth Anisota peigleri 2
orangestriped oakworm Anisota senatoria 4
spiny oakworm Anisota stigma 6
pinkstriped oakworm Anisota virginiensis 6
spurred anoda Anoda cristata 2
Largehead anole Anolis cybotes 2
Knight anole Anolis equestris equestris 3
Cuban Green Anole Anolis porcatus 2
brown anole Anolis sagrei 3
oriental beetle Anomala orientalis 3
white-spotted longicorn beetle Anoplophora chinensis malasiaca 4
citrus longhorned beetle Anoplophora chinensis 11
Asian longhorned beetle Anoplophora glabripennis 12
metalic wood-boring beetle Anthaxia hungarica 2
metalic wood-boring beetle Anthaxia manca 1
pasture splendour beetle Anthaxia salicis 1
metalic wood-boring beetles Anthaxia spp. 1
stinking chamomile Anthemis cotula 5
boll weevil Anthonomus grandis grandis 6
boll weevil Anthonomus grandis 1
apple blossom weevil Anthonomus pomorum 2
pronghorn antelope Antilocapra americana 8
rice white tip nematode Aphelenchoides besseyi 7
strawberry crimp nematode Aphelenchoides fragariae 3
foliar nematode Aphelenchoides ritzemabosi 1
cowpea aphid Aphis craccivora 1
soybean aphid Aphis glycines 4
Saratoga spittlebug Aphrophora saratogensis 2
brown-legged spurge flea beetle Aphthona lacertosa 1
black dot spurge flea beetle Aphthona nigriscutis 1
oak anthracnose Apiognomonia errabunda 3
anthracnose Apiognomonia quercina 2
sycamore anthracnose Apiognomonia veneta 6
black knot Apiosporina morbosa 5
honey bee Apis mellifera 12
Africanized honey bee Apis mellifera scutellata 1
hemp dogbane Apocynum cannabinum 5
blue-and-yellow macaw Ara ararauna 2
red-and-green macaw Ara chloropterus 3
scarlet macaw Ara macao 4
pine flat bug Aradus cinnamomeus 1
brown-throated parakeet Aratinga pertinax 4
white fir dwarf mistletoe Arceuthobium abietinum f.sp. concoloris 2
American dwarf mistletoe Arceuthobium americanum 6
western dwarf mistletoe Arceuthobium campylopodum 4
limber pine dwarf mistletoe Arceuthobium cyanocarpum 6
pinyon dwarf mistletoe Arceuthobium divaricatum 4
Douglas-fir dwarf mistletoe Arceuthobium douglasii 5
larch dwarf mistletoe Arceuthobium laricis 6
eastern dwarf mistletoe Arceuthobium pusillum 4
hemlock dwarf mistletoe Arceuthobium tsugense 3
pineland dwarf mistletoe Arceuthobium vaginatum ssp. cryptopodum 4
giant West African snail Archachatina marginata 1
fruittree leafroller Archips argyrospila 1
uglynest caterpillar Archips cerasivorana 3
apple tortrix Archips fuscocupreanus 1
baldcypress leafroller Archips goyerana 6
larger boxelder leafroller Archips negundana 2
large fruit-tree tortrix Archips podana 3
common burdock Arctium minus 12
coral ardisia Ardisia crenata 12
shoebutton ardisia Ardisia elliptica 18
birch sawfly Arge pectoralis 1
apple fruit moth Argyresthia conjugella 2
arborvitae leafminer Argyresthia thuiella 5
pine tube moth Argyrotaenia pinatubana 2
burnt pine longhorn beetle Arhopalus ferus 7
new house borer Arhopalus productus 1
long-horned beetle Arhopalus rusticus 12
wheel bug Arilus cristatus 12
Spanish slug Arion lusitanicus 2
European red slug Arion rufus 2
dusky slug Arion subfuscus 1
bark beetle Arixyleborus canaliculatus 2
bark beetles Arixyleborus spp. 3
Armillaria root rot Armillaria gallica 9
Armillaria root rot Armillaria limonea 3
Armillaria root rot Armillaria mellea 5
Armillaria root rot Armillaria novae-zelandiae 3
Armillaria root rots Armillaria spp. 6
musk beetle Aromia moschata 3
oak timberworm Arrenodes minutus 3
absinth wormwood Artemisia absinthium 7
annual wormwood Artemisia annua 1
small carpetgrass, joint-head grass Arthraxon hispidus 10
orange rust Arthuriomyces peckianus 1
leaf mold Articularia quercina 1
giant reed Arundo donax 8
common milkweed Asclepias syriaca 2
Ascochyta blight of cotton Ascochyta gossypii 6
Ascochyta blight of chickpea Ascochyta rabiei 5
sorghum rough leaf spot Ascochyta sorghi 1
black spruce borer Asemum striatum 7
black mold Aspergillus niger 6
onionweed Asphodelus fistulosus 4
giant whiptail Aspidoscelis motaguae 1
oscar Astronotus ocellatus 1
long-horned beetle Ataxia hubbardi 1
Atropellis canker Atropellis piniphila 5
Texas leafcutting ant Atta texana 6
mango scale Aulacaspis tubercularis 1
foxglove aphid Aulacorthum solani 3
silver Y moth Autographa gamma 2
wild oat Avena fatua 8
sterile oat Avena sterilis 4
chital Axis axis 2
pinnate mosquitofern Azolla pinnata 6
melon fly Bactrocera cucurbitae 1
oriental fruit fly Bactrocera dorsalis 1
Malaysian fruit fly Bactrocera latifrons 1
olive fruit fly Bactrocera oleae 1
fruit flies Bactrocera spp. 1
peach fruit fly Bactrocera zonata 1
golden crowned crane Balearica regulorum 4
bamboo Bambusa spp. 3
yellow rocket Barbarea vulgaris 6
brown basilisk Basiliscus vittatus 4
Bean Golden Mosaic Virus Begomovirus BGMV 15
Tomato Yellow Leaf Curl Virus Begomovirus TYLCV 7
pike killifish Belonesox belizanus 1
sting nematode Belonolaimus longicaudatus 1
silverleaf whitefly Bemisia tabaci Biotype B 6
sweetpotato whitefly Bemisia tabaci 1
Beet Necrotic Yellow Vein Virus Benyvirus BNYVV 7
Japanese barberry Berberis thunbergii 13
European barberry Berberis vulgaris 4
European white birch Betula pendula 3
bearded beggarticks Bidens aristosa 2
spanishneedles Bidens bipinnata 3
needle cast Bifusella linearis 1
needle cast Bifusella saccata 4
Squash Leaf Curl Virus Bigeminivirus SLCV 5
Southern corn leaf blight and stalk rot Bipolaris maydis 11
leaf spot of maize Bipolaris zeicola 2
Javanese bishopwood Bischofia javanica 2
Hypoxylon canker of oak Biscogniauxia atropunctata atropunctata 3
apple pith moth Blastodacna atra 2
oriental cockroach Blatta orientalis 2
German cockroach Blattella germanica 3
powdery mildew Blumeria graminis 4
Blumeriella leaf spot of cherry and plum Blumeriella jaapii 2
common boa Boa constrictor 3
brown tree snake Boiga irregularis 3
Botryosphaeria canker Botryosphaeria rhodina 3
Botryosphaeria canker Botryosphaeria ribis 5
gray mold Botrytis cinerea 5
Botrytis leaf blight Botrytis squamosa 1
birdsrape mustard Brassica rapa 4
red and black flat mite Brevipalpus phoenicis 2
cheatgrass Bromus tectorum 19
paper-mulberry Broussonetia papyrifera 18
oak skeletonizer Bucculatrix ainsliella 4
African ground hornbill Bucorvus leadbeateri 4
butterflybush Buddleja spp. 4
corn gromwell Buglossoides arvensis 1
turpentine borer Buprestis apricans 1
golden buprestid Buprestis aurulenta 1
metalic wood-boring beetle Buprestis consularis 1
metalic wood-boring beetle Buprestis cupressi 1
metalic wood-boring beetle Buprestis fasciata 1
metalic wood-boring beetle Buprestis lineata 2
flat headed woodborer Buprestis novemmaculata 10
red-legged buprestis Buprestis rufipes 1
bacterial wilt Burkholderia caryophylli 3
sour skin of onion Burkholderia cepacia 1
slippery skin Burkholderia gladioli pv. alliicola 12
bacterial panicle blight Burkholderia glumae 8
pine wilt nematode Bursaphelenchus xylophilus 5
flowering rush Butomus umbellatus 5
Oat Mosaic Virus Bymovirus OMV 1
fanwort Cabomba caroliniana 5
prickly pear moth Cactoblastis cactorum 12
bark beetles Cactopinus spp. 1
caiman Caiman spp. 3
Caliciopsis canker Caliciopsis pinea 2
scarlet oak sawfly Caliroa quercuscoccineae 5
Japanese cedar longhorn beetle Callidiellum rufipenne 9
blackhorned pine borer Callidium antennatum hesperum 2
violet tanbark beetle Callidium violaceum 6
California quail Callipepla californica 8
horned oak gall Callirhytis cornigera 3
gouty oak gall Callirhytis quercuspunctata 1
basketplant Callisia fragrans 3
branch borer of coigue Callisphyris leptopus 1
bark boring beetle of dead and dying coigue Calydon submetallicum 3
horse chestnut leafminer Cameraria ohridella 6
clearwinged grasshopper Camnula pellucida 2
carpenter ants Camponotus spp. 6
trumpetcreeper Campsis radicans 12
citrus greening Candidatus Liberibacter asiaticus 12
coyote Canis latrans 8
marijuana Cannabis sativa 1
Citrus Tatter Leaf Virus Capillovirus CTLV 3
peach capnodis Capnodis tenebrionis 1
shepherd's-purse Capsella bursa-pastoris 8
oak leafroller Capua semiferana 1
Siberian peashrub Caragana arborescens 5
hoary cress Cardaria draba 12
hairy whitetop Cardaria pubescens 5
balloonvine Cardiospermum halicacabum 3
spiny plumeless thistle Carduus acanthoides 12
musk thistle Carduus nutans 21
Italian plumeless thistle Carduus pycnocephalus 3
slenderflower thistle Carduus tenuiflorus 1
Japanese sedge Carex kobomugi 5
bark beetles Carphoborus spp. 1
hottentot fig Carpobrotus edulis 1
house finch Carpodacus mexicanus 4
peach fruit moth Carposina niponensis 1
wild safflower Carthamus oxyacanthus 1
common caraway Carum carvi 6
devil's gut Cassytha filiformis 4
Australian-pine Casuarina equisetifolia 20
gray sheoak Casuarina glauca 1
belah Casuarina lepidophloia 1
northern catalpa Catalpa speciosa 5
maple trumpet skeletonizer Catastega aceriella 3
Mediterranean clone of caulerpa Caulerpa taxifolia 6
Strawberry Vein Banding Virus Caulimovirus SVBV 1
maple petiole borer Caulocampus acericaulis 2
bushkiller Cayratia japonica 4
gouty pitch midge Cecidomyia piniinopis 4
oriental bittersweet Celastrus orbiculatus 24
Cenangium limb canker Cenangium ferruginosum 8
Cenangium canker Cenangium singulare 1
southern sandbur Cenchrus echinatus 1
purple starthistle Centaurea calcitrapa 7
cornflower Centaurea cyanus 2
diffuse knapweed Centaurea diffusa 10
brown knapweed Centaurea jacea 2
meadow knapweed Centaurea moncktonii 4
black knapweed Centaurea nigra 2
yellow starthistle Centaurea solstitialis 20
spotted knapweed Centaurea stoebe ssp. micranthos 1
sulphur knapweed Centaurea sulphurea 1
squarrose knapweed Centaurea virgata 12
common tarweed Centromadia pungens ssp. pungens 3
long-horned beetle Cerambyx carinatus 1
great capricorn beetle Cerambyx cerdo 7
capricorn beetle Cerambyx scopolii 3
common mouse-ear chickweed Cerastium fontanum 6
Mediterranean fruit fly, Medfly Ceratitis capitata 10
sharp eyespot Ceratobasidium cereale 8
leaf spot Ceratobasidium stevensii 1
sapstreak disease of sugar maple Ceratocystis coerulescens 3
oak wilt Ceratocystis fagacearum 12
black rot Ceratocystis fimbriata 6
blue stain Ceratocystis tenella 1
Cercospora leaf spot Cercospora arachidicola 3
Cercospora leaf spot Cercospora beticola 7
white leaf spot Cercospora brassicicola 4
Cercospora leaf spot Cercospora capsici 3
carrot leaf blight Cercospora carotae 1
purple seed stain Cercospora kikuchii 1
frog-eye leafspot Cercospora nicotianae 3
juniper blight Cercospora sequoiae junipera 1
frogeye leaf spot Cercospora sojina 1
Cercospora leaf spot Cercospora zeae-maydis 5
snail Cernuella cisalpina 1
snails Cernuella spp. 1
soft scale Ceroplastes ceriferus 2
soft wax scale Ceroplastes destructor 1
Florida wax scale Ceroplastes floridensis 5
Japanese wax scale Ceroplastes japonicus 5
wax scale Ceroplastes sinensis 5
wax scales Ceroplastes spp. 4
bean leaf beetle Cerotoma trifurcata 1
canker rot Cerrena unicolor 9
sambar deer Cervus unicolour 3
corn flea beetle Chaetocnema pulicaria 3
redstriped butterflyfish Chaetodon lunula 1
bark beetles Chaetophloeus spp. 2
intensive dieback of ash Chalara fraxinea 8
pine borer Chalcophora mariana 10
metalic wood-boring beetles Chalcophora spp. 2
large flat-headed pine heartwood borer Chalcophora virginiensis 2
veiled chameleon Chamaeleo calyptratus 1
northern snakehead Channa argus 4
bullseye snakehead Channa marulius 1
greater celandine Chelidonium majus 7
wood borer of coigue Cheloderus childreni 4
lambsquarters Chenopodium album 3
carpenter worm Chilecomadia valdiviana 2
Asiatic rice borer Chilo suppressalis 4
pine needle scale Chionaspis pinifoliae 4
clown knifefish Chitala ornata 1
vervet monkey Chlorocebus aethiops 4
bamboo borer Chlorophorus annularis 9
pine cone cerambycid Chlorophorus strobilicola 1
Choanephora fruit rot Choanephora cucurbitarum 6
rush skeletonweed Chondrilla juncea 12
silverleaf Chondrostereum purpureum 1
blue mustard Chorispora tenella 1
large aspen tortrix Choristoneura conflictana 4
spruce budworm Choristoneura fumiferana 10
sugar pine tortrix Choristoneura lambertiana 6
western spruce budworm Choristoneura occidentalis 6
jack pine budworm Choristoneura pinus pinus 3
bark beetles Chramesus spp. 3
flatheaded appletree borer Chrysobothris femorata 3
Pacific flatheaded borer Chrysobothris mali 2
tomato looper Chrysodeixis chalcites 6
cottonwood leaf beetle Chrysomela scripta 6
leaf beetles Chrysomela spp. 2
spruce broom rust Chrysomyxa arctostaphyli 3
Chrysomyxa rust of spruce Chrysomyxa ledi 2
large-spored spruce-laborador tea/needle rust Chrysomyxa ledicola 2
spruce needle rust Chrysomyxa weirii 1
pilipiliula Chrysopogon aciculatus 2
cranberry girdler Chrysoteuchia topiaria 3
ink spot leaf blight Ciborinia whetzelii 5
butterfly peacock bass Cichla ocellaris 1
black acara Cichlasoma bimaculatum 1
Mayan cichlid Cichlasoma urophthalma 1
chicory Cichorium intybus 2
white stork Ciconia ciconia 2
spotted waterhemlock Cicuta maculata 6
elm sawfly Cimbex americana 3
bed bug Cimex lectularius 12
cypress aphid Cinara cupressivora 6
giant conifer aphids Cinara spp. 2
white pine aphid Cinara strobi 3
Canada thistle Cirsium arvense 21
yellowspine thistle Cirsium ochrocentrum 2
wavyleaf thistle Cirsium undulatum 1
Tracy's thistle Cirsium undulatum var. tracyi 1
bull thistle Cirsium vulgare 23
scab Cladosporium cucumerinum 8
Heterosporium leaf spot Cladosporium iridis 4
bacterial wilt Clavibacter michiganensis ssp. insidiosus 3
Goss' bacterial wilt Clavibacter michiganensis ssp. nebraskensis 3
ring rot of potato Clavibacter michiganensis ssp. sepedonicus 1
ergot Claviceps purpurea 4
sweet autumn virginsbower Clematis terniflora 5
Cyclamen Tortrix Clepsis spectrana 1
soapbush Clidemia hirta 1
poplar tentmaker Clostera inclusa 6
Citrus Tristeza Virus Closterovirus CTV 7
Grapevine Corky Bark-associated Virus Closterovirus GCBaV 2
rainbow Whiptail Cnemidophorus lemniscatus 1
bark beetles Cnemonyx spp. 2
bark beetles Cnesinus spp. 2
Coconut cadang-cadang viroid Cocadviroid CCCVd 2
ivy gourd Coccinia grandis 1
bark beetles Coccotrypes spp. 4
lecanium scales Coccus spp. 3
green scale Coccus viridis 1
pointed snail Cochlicella acuta 2
pointed snail Cochlicella spp. 1
Cochliobolus leaf spot / black kernel Cochliobolus lunatus 6
brown spot of rice Cochliobolus miyabeanus 8
pine colaspis Colaspis pini 3
larch casebearer Coleophora laricella 6
pine needle rust Coleosporium asterum 12
pine needle rusts Coleosporium spp. 6
needle rust Coleosporium tussilaginis 2
lodgepole needleminer Coleotechnites milleri 3
ponderosa pine needleminer Coleotechnites moreonella 1
anthracnose Colletotrichum acutatum 9
onion smudge Colletotrichum circinans 2
anthracnose Colletotrichum coccodes 2
anthracnose Colletotrichum dematium 3
anthracnose Colletotrichum fragariae 1
bitter rot and anthracnose Colletotrichum gloeosporioides 12
Anthracnose, pink boll rot or seedling blight of cotton Colletotrichum gossypii 1
anthracnose Colletotrichum spp. 1
anthracnose Colletotrichum trifolii 1
anthracnose Colletotrichum truncatum 12
Collybia fungus Collybia fusipes 2
coco yam, wild taro Colocasia esculenta 18
pandora moth Coloradia pandora 6
rock dove Columba livia 4
Benghal dayflower Commelina benghalensis 19
Asiatic dayflower Commelina communis 4
Bean Pod Mottle Virus Comovirus BPMV 1
Squash Mosaic Virus Comovirus SqMV 8
wet rot Coniophora puteana 3
Coniothyrium fungus Coniothyrium concentricum 2
poison-hemlock Conium maculatum 13
American squawroot Conopholis americana 2
white pine cone beetle Conophthorus coniperda 3
lodgepole cone beetle Conophthorus ponderosae 5
Monterey pine cone beetle Conophthorus radiatae 1
red pine cone beetle Conophthorus resinosae 2
red pine cone beetle Conophthorus resinosae 3
cone beetles Conophthorus spp. 3
plum curculio Conotrachelus nenuphar 6
swede midge Contarinia nasturtii 10
Douglas-fir needle midge Contarinia pseudotsugae 4
European lily of the valley Convallaria majalis 1
field bindweed Convolvulus arvensis 18
horseweed Conyza canadensis 11
leaf worm Copitarsia spp. 1
Tippler's bane Coprinus atramentarius 1
formosan subterranean termite Coptotermes formosanus 6
metalic wood-boring beetle Coraebus fasciatus 7
Asian clam Corbicula fluminea 1
Cordana fungus Cordana musae 2
purple pampasgrass Cortaderia jubata 6
pampas grass Cortaderia spp. 1
Columbian timber beetle Corthylus columbianus 6
ambrosia beetles Corthylus spp. 3
common raven Corvus corax 4
common filbert Corylus avellana 2
Corynespora blight Corynespora cassiicola 9
sycamore lace bug Corythucha ciliata 4
lace bugs Corythucha spp. 6
yellow velvet beetle Cosmosalia chrysocoma 1
pecan carpenterworm Cossula magnifica 5
English hawthorn Crataegus monogyna 4
narrowleaf hawksbeard Crepis tectorum 6
Witches broom fungus Crinipellis perniciosa 2
Cucurbit Yellow Stunting Disorder Virus Crinivirus CYSDV 1
oak leaftier Croesia semipurpurana 4
dusky birch sawfly Croesus latitarsus 4
stalactiform blister rust Cronartium coleosporioides 6
comandra blister rust Cronartium comandrae 6
fusiform rust Cronartium quercuum f.sp. fusiforme 6
gall rust of Virginia pine Cronartium quercuum f.sp. virginianae 1
eastern pine gall rust Cronartium quercuum 5
white pine blister rust Cronartium ribicola 12
southern cone rust Cronartium strobilinum 3
ambrosia beetle Crossotarsus minusculus 4
common crupina Crupina vulgaris 1
bark beetle Cryphalus asperatus 5
bark beetle Cryphalus intermedius 2
small fir bark beetle Cryphalus piceae 10
bark beetles Cryphalus spp. 1
orange hobnail canker Cryphonectria gyrosa 6
chestnut blight or canker Cryphonectria parasitica 12
Cryptocline fungus Cryptocline betularum 4
beech scale Cryptococcus fagisuga 3
veiled polypore Cryptoporus volvatus 4
poplar-and-willow borer Cryptorhynchus lapathi 6
Cryptosphaeria canker Cryptosphaeria ligniota 8
west indian powderpost drywood termite Cryptotermes brevis 4
bark beetle Crypturgus pusillus 2
bark beetles Crypturgus spp. 3
bark anole Ctenonotus distichus 4
grass carp Ctenopharyngodon idella 3
black spiny-tailed iguana Ctenosaura similis 4
cantaloupe/honeydew Cucumis melo 1
Peanut Stunt Virus Cucumovirus PSV 15
carrotwood Cupaniopsis anacardioides 12
pecan weevil Curculio caryae 6
European chestnut weevil Curculio elephas 1
nut weevil Curculio nucum 2
acorn and nut weevils Curculio spp. 4
bacterial wilt Curtobacterium flaccumfaciens pv. flaccumfaciens 1
Curvularia fungus Curvularia trifolii 2
largeseed dodder Cuscuta indecora 1
Japanese dodder Cuscuta japonica 10
field dodder Cuscuta pentagona 1
fiveangled dodder Cuscuta pentagona var. pentagona 2
beaked dodder Cuscuta rostrata 1
dodder Cuscuta spp. 4
Cyathus fungus Cyathus stercoreus 1
giant sumpweed Cyclachaena xanthifolia 2
Cyclaneusma needle cast Cyclaneusma minus 3
hickory shuckworm Cydia caryana 1
ponderosa pine seed moth Cydia piperana 1
codling moth Cydia pomonella 6
nut fruit tortix Cydia splendana 1
seed worms Cydia spp. 2
black swan Cygnus atratus 4
trumpeter swan Cygnus buccinator 4
mute swan Cygnus olor 4
sweetpotato weevil Cylas formicarius 4
Cylindrocladium black rot Cylindrocladium parasiticum 3
Cylindrocladium blight and root rot Cylindrocladium scoparium 4
pine reproduction weevil Cylindrocopturus eatoni 2
Douglas-fir twig weevil Cylindrocopturus furnissi 1
Black dog-strangling vine, black swallowwort Cynanchum louiseae 9
dog-strangling vine, European swallowwort Cynanchum rossicum 8
shallow-wort Cynanchum spp. 4
bermudagrass Cynodon dactylon 13
houndstongue Cynoglossum officinale 11
black-tailed prairie dog Cynomys ludovicianus 8
navua sedge Cyperus aromaticus 3
deeprooted sedge Cyperus entrerianus 7
yellow nutsedge Cyperus esculentus 12
umbrella plant Cyperus involucratus 1
rice flatsedge Cyperus iria 2
miniature flatsedge Cyperus prolifer 3
purple nutsedge Cyperus rotundus 5
Asiatic oak weevil Cyrtepistomus castaneus 3
bark beetle Cyrtogenius brevior 2
Scotch broom Cytisus scoparius 11
Strawberry Crinkle Virus Cytorhabdovirus SCrV 2
Cytospora canker of fir Cytospora abietis 1
orchardgrass Dactylis glomerata 6
metalic wood-boring beetle Dactylozodes conjunta 1
thin-walled maze polypore Daedaleopsis confragosa 14
carbon balls Daldinia concentrica 7
spruce bud midge Dasineura swainei 2
pine tussock moth Dasychira pinicola 2
nine-banded armadillo Dasypus novemcinctus 8
walnut caterpillar Datana integerrima 5
yellownecked caterpillar Datana ministra 5
jimsonweed Datura stramonium 14
Queen Anne's lace, wild carrot Daucus carota 10
wild carrot Daucus carota ssp. carota 1
iris leaf spot Davidiella macrospora 10
Medusa needle blight Davisomycella medusa 9
soybean stem borer Dectes texanus 1
roundheaded pine beetle Dendroctonus adjunctus 3
western pine beetle Dendroctonus brevicomis 12
southern pine beetle Dendroctonus frontalis 12
Jeffery pine beetle Dendroctonus jeffreyi 3
great spruce bark beetle Dendroctonus micans 12
mountain pine beetle Dendroctonus ponderosae 12
Douglas-fir beetle Dendroctonus pseudotsugae 5
spruce beetle Dendroctonus rufipennis 6
bark and ambrosia beetles Dendroctonus spp. 2
black turpentine beetle Dendroctonus terebrans 12
red turpentine beetle Dendroctonus valens 12
Pine-tree lappet Dendrolimus pini 15
Masson pine caterpillar Dendrolimus punctatus 5
Siberian moth Dendrolimus sibiricus 7
Dendrophoma leaf blight Dendrophoma zeae 1
bark beetles Dendrosinus spp. 2
slug Deroceras spp. 1
long-horned beetle Deroplia genei 2
flixweed Descurainia sophia 6
elder borer Desmocerus palliatus 1
fuzzy pride-of-Rochester Deutzia scabra 1
northern corn rootworm Diabrotica barberi 1
spotted cucumber beetle Diabrotica undecimpunctata howardi 3
western spotted cucumber beetle Diabrotica undecimpunctata undecimpunctata 1
corn rootworm Diabrotica virgifera 1
western corn rootworm Diabrotica virgifera virgifera 4
Deptford pink Dianthus armeria 6
walkingstick Diapheromera femorata 4
Asian citrus psyllid Diaphorina citri 9
melanose Diaporthe citri 14
pod and stem rot Diaporthe phaseolorum 1
pod and stem blight Diaporthe phaseolorum var. sojae 1
Diaprepes root weevil Diaprepes abbreviatus 4
palmerworm Dichomeris ligulella 1
western red rot Dichomitus squalens 1
seed bug Dieuches armatipes 1
foxglove Digitalis purpurea 4
velvet fingergrass Digitaria velutina 2
ambrosia beetle Dinoplatypus pallidus 7
Mediterranean tamarisk beetle Diorhabda elongata 1
southern pine coneworm Dioryctria amatella 6
ponderosa twig moth Dioryctria ponderosae 2
red pine shoot moth Dioryctria resinosella 3
cone worms Dioryctria spp. 6
Zimmerman pine moth Dioryctria zimmermani 3
winged yam Dioscorea alata 12
Chinese yam Dioscorea polystachya 12
corky bark disease Diplodia tumefaciens 3
conifer sawfly Diprion pini 6
introduced pine sawfly Diprion similis 6
common teasel Dipsacus fullonum 12
cutleaf teasel Dipsacus laciniatus 10
dogwood anthracnose Discula destructiva 6
potato rot nematode Ditylenchus destructor 1
stem and bulb nematode Ditylenchus dipsaci 10
Russian wheat aphid Diuraphis noxia 3
bark beetles Dolurgus spp. 1
Dothichiza canker Dothichiza populea 1
Dothiora fungus Dothiora polyspora 4
grass sharpshooter Draeculacephala minerva 1
Pyrenophora leaf blight Drechslera dictyoides 1
alfombrilla Drymaria arenarioides 1
greenstriped mapleworm Dryocampa rubicunda 6
bark beetle Dryocoetes autographus 4
western balsam bark beetle Dryocoetes confusus 6
bark beetles Dryocoetes spp. 3
Asian chestnut gall wasp Dryocosmus kuriphilus 6
bark beetles Dryoxylon spp. 3
Indian mock-strawberry Duchesnea indica 2
black pineleaf scale Dynaspidiotus californica 4
ambrosia beetle Eccoptopterus gracilipes 1
ambrosia beetle Eccoptopterus spinosus 1
barnyardgrass Echinochloa crus-galli 5
indian paint fungus Echinodontium tinctorium 5
eclipta Eclipta prostrata 1
saddlebacked looper Ectropis crepuscularia 1
Brazilian waterweed Egeria densa 7
anchored waterhyacinth Eichhornia azurea 3
waterhyacinth Eichhornia crassipes 12
Russian-olive Elaeagnus angustifolia 18
thorny olive Elaeagnus pungens 5
autumn-olive Elaeagnus umbellata 17
lesser cornstalk borer Elasmopalpus lignosellus 5
spruce aphid Elatobium abietinum 4
goosegrass Eleusine indica 6
grape anthracnose Elsinoe ampelina 14
sweet orange scab Elsinoe australis 1
anthracnose Elsinoe veneta 1
quackgrass Elymus repens 14
Elytroderma needle cast of pine Elytroderma deformans 4
red oak borer Enaphalodes rufulus 6
cherry bark tortix Enarmonia formosana 3
sooty-bark canker Encoelia pruinosa 2
western gall rust Endocronartium harknessii 5
Endothia fungus Endothia singularis 4
elm spanworm Ennomos subsignaria 6
redbellied clerid Enoclerus sphegeus 1
Enterobacter bulb decay Enterobacter cloacae 7
Hypoxylon canker of aspen Entoleuca mammata 4
Galah Eolophus roseicapilla 4
black-necked stork Ephippiorhynchus asiaticus 4
South African carnation tortrix Epichoristodes acerbella 2
Mexican bean beetle Epilachna varivestis 5
birch leafroller Epinotia solandriana 3
light brown apple moth Epiphyas postvittana 8
field horsetail Equisetum arvense 3
stinkgrass Eragrostis cilianensis 6
weeping lovegrass Eragrostis curvula 8
mottled umber moth Erannis defoliaria 4
linden looper Erannis tiliaria 2
long-horned beetle Ergates faber 2
ponderous borer Ergates spiculatus 1
woolly apple aphid Eriosoma lanigerum 1
bark beetle Ernoporicus fagi 1
bark beetle Ernoporus tiliae 3
redstem filaree Erodium cicutarium 1
fire blight Erwinia amylovora 5
bacterial wetwood Erwinia nimipressuralis 3
bacterial wilt Erwinia tracheiphila 8
powdery mildew Erysiphe betae 11
phlox powdery mildew Erysiphe cichoracearum 9
powdery mildew Erysiphe necator 10
powdery mildew Erysiphe syringae 3
Virginiacreeper leafhopper Erythroneura ziczac 1
Tasmanian bluegum Eucalyptus globulus 2
eastern pine shoot borer Eucosma gloriola 1
western pineshoot borer Eucosma sonomana 5
fruit piercing moth Eudocima fullonia 1
calico scale Eulecanium cerasorum 9
winged burning bush Euonymus alatus 13
European spindletree Euonymus europaeus 1
winter creeper Euonymus fortunei 12
cypress spurge Euphorbia cyparissias 6
toothed spurge Euphorbia dentata 5
leafy spurge Euphorbia esula 18
myrtle spurge Euphorbia myrsinites 4
ambrosia beetle Euplatypus compositus 2
metalic wood-boring beetles Eupristocerus spp. 2
Wellenbindige oak splendour beetle Eupristocerus undatus 1
browntail moth Euproctis chrysorrhoea 6
cabbage bug Eurydema oleracea 1
stink bug Euschistus quadrator 9
Eutypella canker Eutypella parasitica 3
ambrosia beetle Euwallacea piceus 1
ambrosia beetle Euwallacea spp. 3
bark beetle Euwallacea validus 8
tuliptree borer Euzophera ostricolorella 1
American plum borer Euzophera semifuneralis 3
camellia leaf gall Exobasidium camelliae 3
pine needleminer Exoteleia pinifoliella 1
Rostratum leaf spot Exserohilum rostratum 2
prairie falcon Falco mexicanus 1
wild buckwheat Fallopia convolvulus 3
Japanese knotweed Fallopia japonica 15
Sakhalin knotweed Fallopia sachalinensis 2
birch leafminer Fenusa pusilla 5
striped mealybug Ferrisia virgata 1
tall fescue Festuca arundinacea 6
fig buttercup Ficaria verna 6
bark beetle Ficicis despectus 1
edible fig Ficus carica 3
Chinese banyan Ficus microcarpa 1
elongate hemlock scale Fiorinia externa 6
velvet foot Flammulina velutipes 13
tinder fungus Fomes fomentarius 4
red-belted fungus Fomitopsis pinicola 5
bracket fungus Fomitopsis rosea 1
woodland strawberry Fragaria vesca 2
glossy buckthorn Frangula alnus 14
Carolina buckthorn Frangula caroliniana 6
tobacco thrips Frankliniella fusca 6
western flower thrips Frankliniella occidentalis 5
Soil Borne Wheat Mosaic Virus Furovirus SBWMV 9
Fusarium cortical stem rot Fusarium avenaceum 3
pitch canker Fusarium circinatum 7
bakanae of rice Fusarium fujikuroi 2
Fusarium damping-off Fusarium oxysporum f.sp. cepae 6
Fusarium wilt Fusarium oxysporum f.sp. conglutinans 1
Fusarium wilt Fusarium oxysporum f.sp. gladioli 13
Fusarium wilt Fusarium oxysporum f.sp. niveum 3
mimosa wilt Fusarium oxysporum f.sp. perniciosum 4
Fusarium wilt of cotton Fusarium oxysporum f.sp. vasinfectum 4
Fusarium wilt Fusarium oxysporum 3
Fusarium wilt Fusarium poae 1
Fusarium damping-off Fusarium solani 1
Fusarium wilts, blights, rots and damping-off Fusarium spp. 3
pitch canker Fusarium subglutinans 5
Fusicoccum canker Fusicoccum putrefaciens 1
take-all root rot / sheath rot Gaeumannomyces graminis 13
take-all root rot Gaeumannomyces graminis var. avenae 4
take-all root rot Gaeumannomyces graminis var. graminis 11
take-all root rot Gaeumannomyces graminis var. tritici 4
goatsrue Galega officinalis 10
common hempnettle Galeopsis tetrahit 6
smallflower galinsoga Galinsoga parviflora 1
hairy galinsoga Galinsoga quadriradiata 2
catchweed bedstraw Galium aparine 5
artist's conk Ganoderma applanatum 4
Ganoderma root and butt rot Ganoderma australe 11
Ganoderma root and butt rot Ganoderma lucidum 5
Ganoderma root and butt rot Ganoderma oregonense 2
hemlock varnish shelf Ganoderma tsugae 3
scarlet gaura Gaura coccinea 1
Cabbage Leaf Curl Virus Geminivirus CaLCuV 1
Dyer's greenweed Genista tinctoria 1
Thousand Cankers Disease Geosmithia morbida 12
sour rot Geotrichum candidum 3
Gibberella canker Gibberella baccata 9
Gibberella fungus Gibberella tricincta 4
Gibberella stalk rot Gibberella zeae 11
ground ivy Glechoma hederacea 9
white potato cyst nematode Globodera pallida 1
yellow potato cyst nematode Globodera rostochiensis 12
needlecast Gloeocoryneum cinereum 1
sooty blotch Gloeodes pomigena 2
rusty gilled polypore Gloeophyllum sepiarium 15
sugar maple borer Glycobius speciosus 3
wild licorice Glycyrrhiza lepidota 3
western pinewood stainer Gnathotrichus retusus 8
ambrosia beetles Gnathotrichus spp. 1
western hemlock wood stainer Gnathotrichus sulcatus 8
anthracnose Gnomonia spp. 1
ash anthracnose Gnomoniella fraxini 10
slash pine flower thrips Gnophothrips fuscus 1
oak branch borer Goes debilis 1
living-hickory borer Goes pulcher 6
beech borer Goes pulverulentus 1
long-horned beetles Goes spp. 1
oak sapling borer Goes tesselatus 1
white oak borer Goes tigrinus 3
prostrate globe-amaranth Gomphrena serrata 5
cotton Gossypium hirsutum 12
blue-green sharpshooter Graphocephala atropunctata 1
Oriental fruit moth Grapholita molesta 3
Scleroderris canker of pine and spruce Gremmeniella abietina 6
hen of the woods Grifola frondosa 1
curlycup gumweed Grindelia squarrosa 6
Scleroderris canker of western firs Grovesiella abieticola 5
zonate leaf spot Grovesinia pyramidalis 13
Guignardia blotch of buckeyes and horsechestnuts Guignardia aesculi 10
citrus black spot Guignardia citricarpa 1
Guignardia blotch Guignardia musae 1
Eurasian ruffe Gymnocephalus cernuus 2
Senegal tea plant Gymnocoronis spilanthoides 3
quince rust Gymnosporangium clavipes 12
mountain ash juniper rust Gymnosporangium cornutum 5
American hawthorn rust Gymnosporangium globosum 4
cedar-apple rust Gymnosporangium juniperi-virginianae 6
incense cedar broom rust Gymnosporangium libocedri 5
witches broom rust Gymnosporangium nelsonii 3
juniper witches' broom rust Gymnosporangium nidus avis 1
rust Gymnosporangium nidus-avis 1
Cuban laurel thrips Gynaikothrips ficorum 1
cottonwood twig borer Gypsonoma haimbachiana 5
babysbreath Gypsophila paniculata 2
ambrosia beetle Hadrodemius globus 2
mountain silverbell Halesia tetraptera 5
halogeton Halogeton glomeratus 9
brown marmorated stink bug Halyomorpha halys 9
pale tussock moth Halysidota tessellaris 1
multicolored Asian lady beetle Harmonia axyridis 12
rose stem sawfly Hartigia trimaculata 2
English ivy Hedera helix 18
common sunflower Helianthus annuus 6
prairie sunflower Helianthus petiolaris 1
Jerusalem artichoke Helianthus tuberosus 3
violet root rot Helicobasidium brebissonii 2
old world bollworm, cotton bollworm Helicoverpa armigera 7
bollworm Helicoverpa zea 12
greenhouse thrips Heliothrips haemorrhoidalis 2
striped alder sawfly Hemichroa crocea 2
African jewelfish Hemichromis letourneuxi 1
Indo-Pacific Gecko Hemidactylus garnotii 1
Tropical House Gecko Hemidactylus mabouia 1
Mediterranean gecko Hemidactylus turcicus 4
buck moth Hemileuca maia 5
Hemiphacidium fungus Hemiphacidium planum 1
giant hogweed Heracleum mantegazzianum 21
Hericium fungus Hericium coralloides 1
long-horned beetle Herophila tristis 2
brown felt blight Herpotrichia juniperi 1
Chinese longhorned beetle Hesperophanes campestris 2
long-horned beetle Hesperophanes griseus 2
long-horned beetle Hesperophanes pallidus 1
annosum root disease Heterobasidion annosum 12
saddled prominent Heterocampa guttivitta 4
cereal cyst nematode Heterodera avenae 1
carrot cyst nematode Heterodera carotae 4
Heterodera nematode Heterodera filipjevi 1
soybean cyst nematode Heterodera glycines 4
sugar-beet cyst nematode Heterodera schachtii 1
corn cyst nematode Heterodera zeae 6
leucaena psyllid Heteropsylla cubana 3
Venice mallow Hibiscus trionum 6
orange hawkweed Hieracium aurantiacum 13
meadow hawkweed Hieracium caespitosum 14
mouseear hawkweed Hieracium pilosella 2
mouseear hawkweed Hieracium pilosella var. niveum 1
glassy-winged sharpshooter Homalodisca vitripennis 2
European apple sawfly Hoplocampa testudinea 1
Barley Stripe Mosaic Virus Hordeivirus BSMV 2
barley Hordeum vulgare 1
Japanese hop Humulus japonicus 9
honeysuckle aphid Hyadaphis tataricae 4
South American rice miner Hydrellia wirthi 1
capybara Hydrochaeris hydrochaeris 2
miramar weed Hygrophila polysperma 4
bark beetle Hylastes angustatus 8
black pine bark beetle Hylastes ater 5
bark beetle Hylastes cunicularius 10
root-feeding bark beetle Hylastes macer 1
bark beetle Hylastes opacus 8
bark beetle Hylastes porculus 2
bark beetle Hylastes salebrosus 4
bark beetles Hylastes spp. 2
bark beetle Hylastinus fankhauseri 2
bark beetles Hylastinus spp. 2
eastern ash bark beetle Hylesinus aculeatus 12
larch elm bark beetle Hylesinus crenatus 7
ash bark beetles Hylesinus spp. 3
bark beetle Hylesinus toranio 3
ash bark beetle Hylesinus varius 13
bark beetle Hylesinus wachtli orni 2
large brown trunk beetle Hylobius abietis 12
southern pine root weevil Hylobius aliradicis 1
pales weevil Hylobius pales 5
large spruce weevil Hylobius piceus 8
pine root collar weevil Hylobius radicis 4
root-boring weevil Hylobius transversovittatus 11
Warren root collar weevil Hylobius warreni 1
bark beetles Hylocurus spp. 2
old house borer Hylotrupes bajulus 12
bark beetle Hylurdrectonus araucariae 9
hoop-pine bark beetle Hylurdrectonus piniarius 10
native elm bark beetle Hylurgopinus rufipes 1
bark beetles Hylurgopinus spp. 2
bark beetle Hylurgops glabratus 8
bark beetle Hylurgops palliatus 11
bark beetles Hylurgops spp. 3
goldenhaired bark beetle Hylurgus ligniperda 13
bark beetles Hylurgus spp. 1
black henbane Hyoscyamus niger 16
alfalfa weevil Hypera postica 3
common St. Johnswort Hypericum perforatum 15
fall webworm Hyphantria cunea 6
fig bark beetles Hypoborus spp. 1
hairy cat's ear Hypochaeris radicata 4
larch needle cast Hypodermella laricis 5
bighead carp Hypophthalmichthys nobilis 2
kiawe scolytid Hypothenemus birmanus 3
coffee berry borer Hypothenemus hampei 2
bark beetles Hypothenemus spp. 4
indigobush twig borer Hystricophora taleana 1
cottony cushion scale Icerya purchasi 7
green iguana Iguana iguana 8
Apple Mosaic Virus Ilarvirus ApMV 14
Prune Dwarf Virus Ilarvirus PDV 2
Tobacco Streak Virus Ilarvirus TSV 14
Chinese holly Ilex cornuta 3
ornamental jewelweed Impatiens glandulifera 20
cogongrass Imperata cylindrica 12
red root and butt rot Inonotus circinatus 5
weeping conk Inonotus dryadeus 7
hispidus canker Inonotus hispidus 5
clinker polypore Inonotus obliquus 3
British yellowhead Inula britannica 6
swamp morningglory Ipomoea aquatica 5
sweetpotato Ipomoea batatas 1
sharppod morningglory Ipomoea cordatotriloba 1
tievine Ipomoea cordatotriloba var. cordatotriloba 1
ivyleaf morningglory Ipomoea hederacea 6
pitted morningglory Ipomoea lacunosa 3
bush morning-glory Ipomoea leptophylla 2
bigroot morningglory Ipomoea pandurata 6
tall morningglory Ipomoea purpurea 6
cypressvine morningglory Ipomoea quamoclit 4
morningglory Ipomoea spp. 3
threelobe morningglory Ipomoea triloba 3
palmleaf morningglory Ipomoea wrightii 3
morning-glory Ipomoea x leucantha 1
engraver beetle Ips acuminatus 12
small spruce bark beetle Ips amitinus 12
bark beetle Ips apache 1
small southern pine engraver Ips avulsus 6
sixspined ips Ips calligraphus 4
large larch bark beetle Ips cembrae 11
pinyon ips Ips confusus 8
northern bark beetle Ips duplicatus 11
emarginate ips Ips emarginatus 1
eastern fivespined ips Ips grandicollis 12
blue spruce engraver Ips hunteri 9
bark beetle Ips latidens 11
Arizona fivespined ips Ips lecontei 1
California fivespined ips Ips paraconfusus 4
northern spruce engraver Ips perturbatus 4
pine engraver Ips pini 12
six-spined engraver beetle Ips sexdentatus 12
Ips engraver beetles Ips spp. 13
larch engraver beetle Ips subelongatus 1
European spruce bark beetle Ips typographus 15
cypress looper Iridopsis pergracilis 6
dwarf crested iris Iris cristata 2
Russian iris Iris ensata 1
copper iris Iris fulva 3
Rocky Mountain iris Iris missouriensis 4
sweet iris Iris pallida 1
yellowflag iris Iris pseudacorus 13
Siberian iris Iris sibirica 5
dwarf violet iris Iris verna 4
blueflag iris Iris versicolor 1
Virginia iris Iris virginica 2
milk-white toothed polypore Irpex lacteus 6
Dyer's woad Isatis tinctoria 20
saramollagrass Ischaemum rugosum 2
clover stem weevil Ischnopterapion virens 1
long-horned beetle Isotomus speciosus 2
fir needle cast Isthmiella abietis 1
poverty sumpweed Iva axillaris 4
smallflower morningglory Jacquemontia tamnifolia 4
willow shoot sawfly Janus abbreviatus 4
oak shoot sawfly Janus quercusae 2
Gold Coast jasmine Jasminum dichotomum 1
eye spot Kabatiella zeae 2
elm leafminer Kaliofenusa ulmi 4
metalic wood-boring beetle Kisanthobia ariasi 1
Mexican fireweed Kochia scoparia 12
common lespedeza Kummerowia striata 7
false green kyllinga Kyllinga gracillima 2
Lachnellula canker Lachnellula flavovirens 1
European larch canker Lachnellula willkommii 3
prickly lettuce Lactuca serriola 16
blue lettuce Lactuca tatarica var. pulchella 5
sulfur shelf Laetiporus sulphureus 5
red thread Laetisaria fuciformis 2
oxygen weed Lagarosiphon major 1
crapemyrtle Lagerstroemia indica 4
spring hemlock looper Lambdina fervidaria athasaria 1
western oak looper Lambdina fiscellaria somniaria 2
henbit Lamium amplexicaule 6
purple deadnettle Lamium purpureum 5
Bean butterfly Lampides boeticus 6
metalic wood-boring beetle Lamprodila decipiens 3
linden burncow Lamprodila rutilans 1
Glossy Starling Lamprotornis chalybaeus 2
largeleaf lantana Lantana camara 17
heart rot Laricifomes officinalis 2
Java black rot Lasiodiplodia theobromae 8
common falsepit scale Lecanodiaspis prosopidis 1
Northern Curly-tailed Lizard Leiocephalus carinatus armouri 2
Butterfly lizard Leiolepis belliana belliana 1
red-billed leiothrix Leiothrix lutea 1
motherwort Leonurus cardiaca 1
perennial pepperweed Lepidium latifolium 16
clasping pepperweed Lepidium perfoliatum 4
oystershell scale Lepidosaphes ulmi 5
twig canker Lepteutypa cupressi 12
Colorado potato beetle Leptinotarsa decemlineata 1
Chinese sprangletop Leptochloa chinensis 3
leaffooted pine seed bug Leptoglossus corculus 4
western conifer-seed bug Leptoglossus occidentalis 5
leaf-footed bug Leptoglossus zonatus 1
Leptographium root disease Leptographium procerum 6
Leptographium root disease Leptographium spp. 1
stem canker Leptosphaeria coniothyrium 10
Leptosphaerulina leaf blight Leptosphaerulina trifolii 6
bark beetle Leptoxyleborus sordicauda 2
hornet beetle Leptura aurulanta 2
hornet beetle Leptura aurulenta 3
black-tailed jack rabbit Lepus californicus 3
sericea lespedeza Lespedeza cuneata 13
white leadtree Leucaena leucocephala 2
oxeye daisy Leucanthemum vulgare 17
white satin moth Leucoma salicis 6
pear leaf blister moth Leucoptera malifoliella 3
Leucostoma canker of spruce Leucostoma kunzei 1
powdery mildew Leveillula taurica 1
glossy privet Ligustrum lucidum 8
Chinese privet Ligustrum sinense 19
European privet Ligustrum vulgare 9
lily leaf beetle Lilioceris lilii 8
land snail Limicolaria aurora 1
American frogbit Limnobium spongia 1
limnophila Limnophila sessiliflora 1
Dalmatian toadflax Linaria dalmatica 12
dalmatian toadflax Linaria dalmatica ssp. dalmatica 4
broomleaf toadflax Linaria genistifolia 1
yellow toadflax Linaria vulgaris 18
Argentine ant Linepithema humile 1
sweetgum Liquidambar styraciflua 8
pea leafminer Liriomyza huidobrensis 1
fir needle cast Lirula abietis-concoloris 4
spruce needle cast/blight Lirula macrospora 3
vegetable weevil Listroderes difficilis 3
American bullfrog Lithobates catesbeianus 1
variable oakleaf caterpillar Lochmaeus manteo 5
perennial ryegrass Lolium perenne 2
needle nematode Longidorus leptocephalus 2
sweet breath of spring Lonicera fragrantissima 3
Japanese honeysuckle Lonicera japonica 19
Amur honeysuckle Lonicera maackii 12
Morrow's honeysuckle Lonicera morrowii 4
Tatarian honeysuckle Lonicera tatarica 11
Bell's honeysuckle Lonicera x bella 5
hickory tussock moth Lophocampa caryae 1
white pine needlecast Lophodermella arcuata 1
lodgepole pine needle cast Lophodermella concolor 8
needlecast Lophodermella montivaga 2
needle cast Lophodermium juniperinum 1
spruce needle cast Lophodermium piceae 3
needle cast Lophodermium seditiosum 3
Lophodermium needle casts Lophodermium spp. 4
birdsfoot trefoil Lotus corniculatus 12
primrose-willow Ludwigia spp. 1
Bean Leaf Roll Virus Luteovirus BLRV 8
Barley Yellow Dwarf Virus Luteovirus BYDV 7
Raspberry Leaf Curl Virus Luteovirus RLCV 1
Strawberry Mild Yellow Edge Virus Luteovirus SMYEV 1
African boxthorn Lycium ferrocissimum 1
Japanese climbing fern Lygodium japonicum 20
old world climbing fern Lygodium microphyllum 16
western tarnished plant bug Lygus hesperus 1
bark beetles Lymantor spp. 1
Asian gypsy moth Lymantria dispar asiatica 6
gypsy moth Lymantria dispar 15
rosy gypsy moth Lymantria mathura 12
nun moth Lymantria monacha 6
moneywort Lysimachia nummularia 1
garden loosestrife Lysimachia vulgaris 2
purple loosestrife Lythrum salicaria 17
larch looper Macaria sexmaculata sexmaculata 2
osage-orange Maclura pomifera 5
pink hibiscus mealybug Maconellicoccus hirsutus 6
dogwood sawfly Macremphytus tarsatus 2
rose chafer Macrodactylus subspinosus 3
charcoal rot Macrophomina phaseolina 6
defoliating weevil Magdalis gentilis 1
periodical cicada Magicicada septendecim 5
periodical cicada Magicicada spp. 6
gray leaf spot Magnaporthe grisea 1
summer patch Magnaporthe poae 6
leatherleaf mahonia Mahonia bealei 15
Oregon grape Mahonia nervosa 1
eastern tent caterpillar Malacosoma americanum 12
western tent caterpillar Malacosoma californicum 6
Pacific tent caterpillar Malacosoma constrictum 5
forest tent caterpillar Malacosoma disstria 12
southwestern tent caterpillar Malacosoma incurvum 5
Asiatic garden beetle Maladera castanea 1
hardwood stump borer Mallodon dasystomus 1
common mallow Malva neglecta 1
little mallow Malva parviflora 1
cabbage moth Mamestra brassicae 1
European pepperwort Marsilea quadrifolia 1
Marssonina blight of poplar Marssonina populi 1
Marssonina leaf spot Marssonina tremulae 6
legume pod borer Maruca vitrata 2
pinyon needle scale Matsucoccus acalyptus 4
Hessian fly Mayetiola destructor 1
spruce gall midge Mayetiola piceae 1
alfalfa Medicago sativa 1
ringed kingfisher Megaceryle torquata 2
kudzu bug Megacopta cribraria 16
locust borer Megacyllene robiniae 6
melaleuca Melaleuca quinquenervia 15
hemlock rust Melampsora farlowii 4
poplar rust Melampsora medusae 2
twist rust Melampsora populnea 6
fir broom rust Melampsorella caryophyllacearum 4
Banks melastoma Melastoma malabathricum 2
chinaberry Melia azedarach 18
yellow sweetclover Melilotus officinalis 16
chestnut timberworm Melittomma sericeum 4
coffee root-knot nematode Meloidogyne arabicida 3
root-knot nematode Meloidogyne brevicauda 3
coffee root-knot nematode Meloidogyne exigua 5
northern root-knot nematode Meloidogyne hapla 1
root-knot nematode Meloidogyne incognita 7
barley root-knot nematode Meloidogyne naasi 5
coffee root-knot nematode Meloidogyne paranaensis 1
root-knot nematode Meloidogyne salasi 1
spearmint Mentha spicata 2
needle blight of larch Meria laricis 3
ring nematode Mesocriconema xenoplax 1
white-clouded longhorn beetle Mesosa nebulosa 2
early birch leaf edgeminer Messa nana 1
bromeliad weevils Metamasius spp. 1
green muscardine of insects Metarhizium anisopliae 1
miconia Miconia calvescens 4
bark beetles Micracis spp. 1
bark beetles Micracisella spp. 2
pink snow mold Microdochium nivale 4
Japanese stiltgrass Microstegium vimineum 15
African mile-a-minute Mikania cordata 1
mile-a-minute Mikania micrantha 1
climbing hempweed Mikania scandens 3
spring millet Milium vernale 1
giant sensitiveplant Mimosa diplotricha 2
catclaw mimosa Mimosa pellita 5
balsam twig aphid Mindarus abietinus 5
Chinese silvergrass Miscanthus sinensis 15
longhorn beetle Molorchus minor 8
Cartusian snail Monacha cartusiana 3
apple wood stainer Monarthrum mali 1
bark beetles Monarthrum spp. 3
cactus longhorn beetle Moneilema armatum 1
brown rot of fruit Monilinia fructigena 1
brown rot blossom blight and spur infection Monilinia laxa 2
mummy berry Monilinia vaccinii-corymbosi 15
scurf Monilochaetes infuscans 3
larger elm leaf beetle Monocesta coryli 5
Japanese pine sawyer Monochamus alternatus 13
pine sawyer beetle Monochamus carolinensis 1
spotted pine sawyer Monochamus clamator 2
long-horned beetle Monochamus galloprovincialis 12
northeastern sawyer Monochamus notatus 1
Sakhalin pine sawyer Monochamus saltuarius 2
sawyer beetle Monochamus sartor 10
whitespotted sawyer Monochamus scutellatus 4
sawyer beetles Monochamus spp. 8
small white-marmorated long-horned beetle Monochamus sutor 5
southern pine sawyer Monochamus titillator 5
black fir sawyer Monochamus urussovii 7
arrowleaved monochoria Monochoria hastata 1
monochoria Monochoria vaginalis 1
yellow morel Morchella esculenta 3
morel Morchella vulgaris 7
long-horned beetle Morimus funereus 2
wirestem muhly Muhlenbergia frondosa 2
nimblewill Muhlenbergia schreberi 3
marsh dayflower Murdannia keisak 7
leaf spot Mycosphaerella alocasiae 1
Mycosphaerella leaf spot Mycosphaerella cerasella 10
Mycosphaerella fungus Mycosphaerella cruenta 2
brown spot needle blight of pine Mycosphaerella dearnessii 6
black Sigatoka disease Mycosphaerella fijiensis 7
ash leaf spot Mycosphaerella fraxinicola 1
Dothistroma needle blight Mycosphaerella pini 6
Septoria leaf spot of blackberry Mycosphaerella ribis 4
nutria Myocastor coypus 1
ambrosia beetle Myoplatypus flavicornis 4
true forget-me-not Myosotis scorpioides 4
twoleaf watermilfoil Myriophyllum heterophyllum 4
Eurasian watermilfoil Myriophyllum spicatum 8
European imported fire ant Myrmica rubra 1
green peach aphid Myzus persicae 12
cicadas 5
aphids 6
sand pine root disease 3
air pollutants 5
false root-knot nematode Nacobbus aberrans 1
brittleleaf naiad Najas minor 6
sacred bamboo Nandina domestica 14
matgrass Nardus stricta 2
serrated tussock Nassella trichotoma 3
watercress Nasturtium officinale 6
White-nosed Coati Nasua narica 2
whitefringed beetle Naupactus peregrinus 3
whitefringed beetles Naupactus spp. 5
Nectria canker Nectria cinnabarina 2
beech bark disease Nectria coccinea 7
Nectria canker Nectria galligena 7
long-horned beetle Necydalis major 2
common sawflies Nematus spp. 3
locust sawfly Nematus tibialis 4
willow sawfly Nematus ventralis 2
redheaded ash borer Neoclytus acuminatus 4
banded ash borer Neoclytus caprea 1
long-horned beetle Neoclytus spp. 4
Abbott's sawfly Neodiprion abbottii 1
conifer sawfly Neodiprion autumnalis 2
blackheaded pine sawfly Neodiprion excitans 6
redheaded pine sawfly Neodiprion lecontei 6
slash pine sawfly Neodiprion merkeli 1
red pine sawfly Neodiprion nanulus nanulus 1
white pine sawfly Neodiprion pinetum 3
sand pine sawfly Neodiprion pratti 1
Virginia pine sawfly Neodiprion pratti pratti 4
European pine sawfly Neodiprion sertifer 5
conifer sawflies Neodiprion spp. 5
loblolly pine sawfly Neodiprion taedae linearis 5
hemlock sawfly Neodiprion tsugae 3
Neofabraea fungus Neofabraea malicorticis 2
round goby Neogobius melanostomus 3
Neonectria canker Neonectria galligena 6
brown felt blight of pines Neopeckia coulteri 6
pine butterfly Neophasia menapia 6
Arabis Mosaic Virus Nepovirus ArMV 12
Cherry Rasp Leaf Virus Nepovirus CRLV 7
Grapevine Fanleaf Virus Nepovirus GFLV 2
Peach Rosette Mosaic Virus Nepovirus PRMV 2
Tomato Black Ring Virus Nepovirus TBRV 4
Tomato Ringspot Virus Nepovirus ToRSV 10
false hemlock looper Nepytia canosaria 4
burmareed Neyraudia reynaudiana 3
southern green stink bug Nezara viridula 12
large yellow underwing Noctua pronuba 6
Potato Yellow Dwarf Virus Nucleorhabdovirus PYDV 5
fragrant waterlily Nymphaea odorata 6
California tortoiseshell Nymphalis californica 2
wheat bug Nysius huttoni 8
poplar twig borer Oberea delongi 4
leafy spurge stem boring beetle Oberea erythrocephala 4
sumac stem borer Oberea ocellata 1
eyed longhorn beetle Oberea oculata 2
raspberry cane borer Oberea perspicillata 1
long-horned beetle Oberea pupillata 2
sassafras borer Oberea ruficollis 5
poplar branch borer Oberea schaumii 2
dogwood twig borer Oberea tripunctata 4
white-tailed deer Odocoileus virginianus 12
yellow poplar weevil Odontopus calceatus 6
locust leafminer Odontota dorsalis 6
baccharis borer Oidaematophorus balanotes 2
goldenrod borer Oidaematophorus kellicottii 1
walking cicada Okanagana synodica 1
olive Olea europaea 5
spruce spider mite Oligonychus ununguis 6
twig girdler Oncideres cingulata 6
huisache girdler Oncideres pustulata 1
Tomentosus root disease Onnia tomentosus 6
Scotch thistle Onopordum acanthium 17
bruce spanworm Operophtera bruceata 1
winter moth Operophtera brumata 6
spring dead spot Ophiosphaerella korrae 4
blue stain Ophiostoma huntii 1
blue stain Ophiostoma ips 2
Dutch elm disease (novi-ulmi) Ophiostoma novo-ulmi 5
blue stain Ophiostoma piceae 2
Dutch elm disease Ophiostoma ulmi 5
black stain root disease Ophiostoma wageneri 6
banana moth Opogona sacchari 6
jointed prickly pear Opuntia aurantiaca 4
rusty tussock moth Orgyia antiqua 3
whitemarked tussock moth Orgyia leucostigma 6
Douglas-fir tussock moth Orgyia pseudotsugata 6
spiny caterpillar Ormiscodes cinnamomea 4
star-of-Bethlehem Ornithogalum umbellatum 1
Egyptian broomrape Orobanche aegyptiaca 6
nodding broomrape Orobanche cernua 1
crenate broomrape Orobanche crenata 3
sunflower broomrape Orobanche cumana 3
branched broomrape Orobanche ramosa 6
broomrape Orobanche spp. 1
bark beetle Orthotomicus angulatus 7
bark beetle Orthotomicus caelatus 6
lesser larch bark-beetle Orthotomicus laricis 9
bark beetles Orthotomicus spp. 3
bark beetle Orthotomicus suturalis 6
longstamen rice Oryza longistaminata 2
red rice Oryza punctata 1
brown-beard rice Oryza rufipogon 1
rice Oryza sativa 4
Cuban treefrog Osteopilus septentrionalis 4
European corn borer Ostrinia nubilalis 6
black vine weevil Otiorhynchus sulcatus 2
duck-lettuce Ottelia alismoides 5
cereal leaf beetle Oulema melanopus 1
Ovachlamys fulgens Ovachlamys fulgens 1
yellow woodsorrel Oxalis stricta 3
cottonseed bug Oxycarenus hyalinipennis 1
melaleuca leaf weevil Oxyops vitiosa 4
mossy maple polypore Oxyporus populinus 4
hoop-pine borer Pachycotes australis 9
bark beetle Pachycotes peregrinus 9
pitch-eating weevil Pachylobius picivorus 5
hackberry nipplegall maker Pachypsylla celtidismamma 6
Japanese pachysandra Pachysandra terminalis 4
cressleaf groundsel Packera glabella 3
skunk-vine Paederia foetida 10
bark beetles Pagiocerus spp. 1
spring cankerworm Paleacrita vernata 2
bamboo mealybug Palmicultor lumpurensis 3
barred fruit-tree tortrix Pandemis cerasana 3
dark fruit-tree tortrix Pandemis heperana 1
fall panicum Panicum dichotomiflorum 4
wild-proso millet Panicum miliaceum 6
torpedograss Panicum repens 19
pine beauty moth Panolis flammea 6
Stewart's wilt Pantoea stewartii pv. stewartii 2
Fuller rose beetle Pantomorus cervinus 5
burdock borer Papaipema cataphracta 2
stalk borer Papaipema nebris 2
citrus swallowtail Papilio demodocus 2
lime swallowtail Papilio demoleus 3
jaguar guapote Parachromis managuensis 1
maple leafcutter Paraclemensia acerifoliella 2
papaya mealybug Paracoccus marginatus 9
balsam gall midge Paradiplosis tumifex 2
cottonwood clearwing borer Paranthrene dollii 3
western poplar clearwing Paranthrene robiniae 3
dusky clearwing Paranthrene tabaniformis 3
lobate lac scale Paratachardina pseudolobata 8
stubby root nematode Paratrichodorus minor 3
potato/tomato psyllid Paratrioza cockerelli 7
red-crested cardinal Paroaria coronata 1
dallisgrass Paspalum dilatatum 6
bahiagrass Paspalum notatum 6
tussock paspalum Paspalum quadrifarium 10
ricegrass paspalum Paspalum scrobiculatum 5
vaseygrass Paspalum urvillei 5
late leaf spot Passalora personata 1
house sparrow Passer domesticus 3
banana passionflower Passiflora tripartita var. mollissima 1
wild parsnip Pastinaca sativa 7
princesstree Paulownia tomentosa 23
Indian peafowl Pavo cristatus 8
peafowl Pavo muticus 2
pink bollworm Pectinophora gossypiella 1
African rue Peganum harmala 5
Peach Latent Mosaic Viroid Pelamoviroid PLMVd 3
green mold Penicillium digitatum 1
blue mold Penicillium expansum 2
Peniophora decay Peniophora polygonia 1
kikuyugrass Pennisetum clandestinum 6
African feathergrass Pennisetum macrourum 2
kyasumagrass Pennisetum pedicellatum 2
mission grass Pennisetum polystachion 2
ash heart rot Perenniporia fraxinophila 1
Perenniporia decay Perenniporia subacida 3
limb rust Peridermium filamentosum 4
perilla mint Perilla frutescens 5
downy mildew Peronospora antirrhini 1
downy mildew Peronospora hariotii 2
downy mildew Peronospora manshurica 9
downy mildew Peronospora parasitica 9
downy mildew of potentilla Peronospora potentillae 5
downy mildew of rose Peronospora sparsa 14
blue mold Peronospora tabacina 6
metalic wood-boring beetle Perotis lugubris 1
Oriental lady's thumb Persicaria longiseta 3
ladysthumb Persicaria maculosa 4
mile-a-minute weed Persicaria perfoliata 9
Pestalotiopsis leaf spot Pestalotiopsis palmarum 7
sea lamprey Petromyzon marinus 4
common snow mold Phacidium infestans 1
California flatheaded borer Phaenops californica 1
steelblue jewel beetle Phaenops cyanea 12
flatheaded fir borer Phaenops drummondi 1
hemlock borer Phaenops fulvoguttata 1
Swiss needle cast Phaeocryptopus gaeumannii 5
Schweinitzii root and butt disease Phaeolus schweinitzii 6
pine looper Phaeoura mexicanaria 1
soybean rust Phakopsora pachyrhizi 12
reed canarygrass Phalaris arundinacea 15
common pheasant Phasianus colchicus 3
canker rot Phellinus everhartii 7
Phellinus fungus Phellinus gilvus 2
root rot Phellinus hartigii 2
false tinder polypore Phellinus igniarius 2
brown root and collar rot Phellinus lamaënsis 6
brown root rot Phellinus noxius 7
red heart of pine Phellinus pini 6
Rimosus decay Phellinus robiniae 2
robustus conk Phellinus robustus 2
white heartwood rot Phellinus tremulae 6
laminated root disease Phellinus weirii 6
Amur corktree Phellodendron amurense 6
Phialophora wilt Phialophora cinerescens 1
spiny looper Phigalia titea 1
soft scale Philephedra tuberculosa 2
timothy Phleum pratense 3
bark beetle Phloeosinus armatus 2
eastern juniper bark beetle Phloeosinus bicolor 5
cedar bark beetles Phloeosinus spp. 6
Phloeosporella fungus Phloeosporella padi 9
olive bark beetle Phloeotribus scarabaeoides 2
bark beetles Phloeotribus spp. 4
greater flamingo Phoenicopterus ruber 8
date palm Phoenix dactylifera 1
Senegal date palm Phoenix reclinata 1
yellow cap fungi Pholiota spp. 2
scaly pholiota Pholiota squarrosa 11
Phoma blight Phoma exigua var. exigua 4
Phoma blight Phoma macdonaldii 3
Phoma blight Phoma medicaginis 1
pink root of onion Phoma terrestris 12
mal secco Phoma tracheiphila 1
Phomopsis blight Phomopsis juniperivora 5
Phomopsis leaf blight and fruit rot Phomopsis obscurans 12
Phomopsis cankers and twig blights Phomopsis spp. 3
fruit rot Phomopsis vexans 1
Phomopsis cane and leaf spot Phomopsis viticola 10
eucalyptus borer Phoracantha recurva 1
eucalyptus longhorned borer Phoracantha semipunctata 5
juniper mistletoe Phoradendron juniperinum 3
fir mistletoe Phoradendron pauciflorum 1
mistletoes Phoradendron spp. 5
rose rust Phragmidium mucronatum 2
common reed Phragmites australis 15
Texas horned lizard Phrynosoma cornutum 4
tar spot Phyllachora afzeliae 2
powdery mildew Phyllactinia guttata 5
powdery mildew Phyllactinia spp. 4
chamber bitter Phyllanthus urinaria 3
European snout beetle Phyllobius oblongus 2
citrus leafminer Phyllocnistis citrella 1
aspen leafminer Phyllocnistis populiella 2
citrus rust mite Phyllocoptruta oleivora 1
aspen blotchminer Phyllonorycter apparella 4
May-June beetles Phyllophaga spp. 3
golden bamboo Phyllostachys aurea 18
eye spot Phyllosticta minima 13
Apple blotch Phyllosticta solitaria 4
Phyllosticta leaf spots Phyllosticta spp. 1
Phyllosticta leaf spot Phyllosticta vaccinii 9
hickory gall phylloxera Phylloxera caryaecaulis 1
tanbark borer Phymatodes testaceus 9
Phymatotrichum root rot Phymatotrichopsis omnivora 3
black canker Physalospora miyabeana 1
brown spot of corn Physoderma maydis 3
spruce bud scale Physokermes piceae 1
birch cambium miner Phytobia betulivora 1
ash cambium miners Phytobia spp. 1
common pokeweed Phytolacca americana 12
cyclamen mite Phytonemus pallidus 1
Phytophthora disease of alders Phytophthora alni 6
Phytophthora root and crown rot Phytophthora cambivora 11
Phytophthora root rot Phytophthora cinnamomi 5
leaf blight of taro Phytophthora colocasiae 3
Phytophthora root and stem rot Phytophthora drechsleri 15
Red stele root rot of strawberry Phytophthora fragariae fragariae 2
red stele Phytophthora fragariae 3
Phytophthora root disease of Port Orford cedar Phytophthora lateralis 3
Phytophthora root and stem rot Phytophthora megasperma 4
Phytophthora basal canker Phytophthora palmivora 5
sudden oak death - mating type 2 Phytophthora ramorum Mating Type 2 1
sudden oak death Phytophthora ramorum 12
Root and stem rot Phytophthora sojae 1
Phytophthora root and crown rots Phytophthora spp. 3
Elm yellows Phytoplasma 1
Norway spruce Picea abies 4
hawkweed oxtongue Picris hieracioides 1
large white butterfly Pieris brassicae 1
cabbage white Pieris rapae 12
yellowheaded spruce sawfly Pikonema alaskensis 3
red pine adelgid Pineus borneri 2
pine leaf adelgid Pineus pinifoliae 3
pine and spruce adelgids Pineus spp. 1
pine bark adelgid Pineus strobi 6
Scots pine Pinus sylvestris 5
white-crowned parrot Pionus senilis 1
birch conk Piptoporus betulinus 2
small banded pine weevil Pissodes castaneus 4
Norway spruce weevil Pissodes harcyniae 5
eastern pine weevil Pissodes nemorensis 6
European silver fir weevil Pissodes piceae 12
Pissodes weevil Pissodes pini 12
Pissodes weevil Pissodes piniphilus 8
Yosemite bark weevil Pissodes schwarzi 1
white pine weevil Pissodes strobi 6
lodgepole terminal weevil Pissodes terminalis 6
pine cone weevil Pissodes validirostris 1
waterlettuce Pistia stratiotes 13
Great Kiskadee Pitangus sulphuratus 4
two-toothed pine beetle Pityogenes bidentatus 9
bark beetle Pityogenes bistridentatus 3
six-toothed spruce bark beetle Pityogenes chalcographus 12
chestnet brown bark beetle Pityogenes hopkinsi 2
bark beetle Pityogenes quadridens 5
bark beetles Pityogenes spp. 4
silver fir bark beetle Pityokteines curvidens 9
bark beetle Pityokteines spinidens 9
bark beetles Pityokteines spp. 3
European fir engraver beetle Pityokteines vorontzowi 7
bark beetle Pityophthorus aquilus 2
walnut twig beetle Pityophthorus juglandis 12
bark beetle Pityophthorus lichtensteinii 7
fir bark beetle Pityophthorus pityographus 12
twig beetles Pityophthorus spp. 2
long-horned beetle Plagionotus arcuatus 2
lucerene longicorn Plagionotus floralis 4
euphorbia pit scale Planchonia stentae 1
citrus mealybug Planococcus citri 1
passionvine mealybug Planococcus minor 6
bracted plantain Plantago aristata 3
buckhorn plantain Plantago lanceolata 5
broadleaf plantain Plantago major 4
club root of crucifers Plasmodiophora brassicae 6
downy mildew Plasmopara halstedii 13
downy mildew Plasmopara viburni 3
downy mildew Plasmopara viticola 15
tufted apple bud moth Platynota idaeusalis 1
New Zealand pinhole borer Platypus apicalis 7
pinhole borer Platypus cylindrus 12
pinhole borer Platypus imparidens 3
common ambrosia beetle Platypus parallelus 7
pinhole borer Platypus spp. 5
Wilson's white-headed ambrosia beetle Platypus wilsoni 9
Plectosporium blight Plectosporium tabacinum 8
cottonwood borer Plectrodera scalator 6
balsam shootboring sawfly Pleroneura brunneicornis 3
oyster mushroom Pleurotus ostreatus 3
Ploioderma needle cast of pine Ploioderma lethale 3
annual bluegrass Poa annua 2
Kentucky bluegrass Poa pratensis 4
maple webworm Pococera asperatella 2
pine webworm Pococera robustella 5
ash borer Podosesia syringae 6
powdery mildew Podosphaera fuliginea 8
powdery mildew Podosphaera leucotricha 12
powdery mildew Podosphaera macularis 1
powdery mildew Podosphaera pannosa 9
eastern poplar buprestid Poecilonota cyanipes 4
long-horned beetle Pogonocherus fasciculatus 8
harvester ants Pogonomyrmex spp. 1
Potato Leaf Roll Virus Polerovirus PLRV 3
Pennsylvania smartweed Polygonum pensylvanicum 1
small spruce bark beetle Polygraphus poligraphus 6
bark beetles Polygraphus spp. 3
broad mite Polyphagotarsonemus latus 6
tenlined June beetle Polyphylla decemlineata 1
rabbitfoot polypogon Polypogon monspeliensis 3
polypore fungus Polyporus arcularius 2
Dryad's Saddle Polyporus squamosus 1
small banana weevil Polytus mellerborgii 2
emperor angelfish Pomacanthus imperator 2
channeled apple snail Pomacea canaliculata 6
island applesnail Pomacea insularum 8
trifoliate orange Poncirus trifoliata 24
Japanese beetle Popillia japonica 12
white poplar Populus alba 11
Purple Swamphen Porphyrio porphyrio 2
common purslane Portulaca oleracea 9
Chrysanthemum Stunt Viroid Pospiviroid CSVd 4
Potato Spindle Tuber Viroid Pospiviroid PSTVd 8
curlyleaf pondweed Potamogeton crispus 8
sulfur cinquefoil Potentilla recta 11
Hosta Virus X Potexvirus HVX 1
Bean Common Mosaic Virus Potyvirus BCMV 12
Maize Dwarf Mosaic Virus Potyvirus MDMV 1
Peanut Mottle Virus Potyvirus PeMoV 13
Pepper Mottle Virus Potyvirus PepMoV 1
Plum Pox Virus - D-Strain Potyvirus PPV D Strain 1
Papaya Ringspot Virus Potyvirus PRV 3
Potato Virus Y Potyvirus PVY 4
Tulip Breaking Virus Potyvirus TBV 5
Turnip Mosaic Virus Potyvirus TuMV 2
Tobacco Vein Mottling Virus Potyvirus TVMV 3
Andean potato weevil Premnotrypes suturicallus 1
little carpenterworm Prionoxystus macmurtrei 1
carpenterworm Prionoxystus robiniae 6
California prionus Prionus californicus 1
sawying suport beetle Prionus coriarius 2
giant root borers Prionus spp. 12
small spruce fly Pristiphora abietina 2
larch sawfly Pristiphora erichsonii 6
mountain-ash sawfly Pristiphora geniculata 2
devil's-claw Proboscidea louisianica 4
woolly alder aphid Prociphilus tessellatus 4
Syrian mesquite Prosopis farcta 1
kiawe Prosopis pallida 2
mesquite Prosopis ruizlealii 2
mesquite Prosopis spp. 1
maple twig borer Proteoteras aesculana 1
boxelder twig borer Proteoteras willingana 1
healall Prunella vulgaris 3
sweet cherry Prunus avium 1
garden plum Prunus domestica 2
Mahaleb cherry Prunus mahaleb 1
European bird cherry Prunus padus 6
peach Prunus persica 6
euonymus leaf notcher Pryeria sinica 5
magnolia white scale Pseudaulacaspis cockerelli 2
Monterey pine ips Pseudips mexicanus 10
Pseudocercospora leaf spot Pseudocercospora vitis 2
foot rot Pseudocercosporella herpotrichoides 2
two-banded Japanese weevil Pseudocneorhinus bifasciatus 3
Douglas-fir pole beetle Pseudohylesinus nebulosus 1
bark beetles Pseudohylesinus spp. 1
bark beetle Pseudohylesinus variegatus 1
bacterial blight Pseudomonas syringae pv. aptata 5
bacterial blight Pseudomonas syringae pv. glycinea 15
angular leaf spot of cucumber Pseudomonas syringae pv. lachrymans 9
bacterial blight Pseudomonas syringae pv. mori 1
bacterial blight Pseudomonas syringae pv. pisi 1
wildfire of tobacco Pseudomonas syringae pv. tabaci 13
bacterial leaf streak and bulb rot Pseudomonas viridiflava 11
alfalfa leaf spot Pseudopeziza medicaginis 3
clover leaf spot Pseudopeziza trifolii 1
bark beetles Pseudopityophthorus spp. 1
bark beetles Pseudothysanoes spp. 1
strawberry guava Psidium cattleianum 3
branch pruner Psyrassa unicolor 2
brackenfern Pteridium aquilinum 4
metalic wood-boring beetle Ptosima flavoguttata 1
rust Puccinia antirrhini 8
rust Puccinia aristidae 14
safflower rust Puccinia calcitrapae var. centaureae 1
crown rust Puccinia coronata 9
wheat stem rust Puccinia graminis 3
daylily rust Puccinia hemerocallidis 9
rust Puccinia hordei 3
chrysanthemum white rust Puccinia horiana 6
rust Puccinia lantanae 8
rust Puccinia malvacearum 4
mint rust Puccinia menthae 8
rust Puccinia pelargonii-zonalis 2
Southern corn rust Puccinia polysora 6
guava rust Puccinia psidii 1
wheat leaf rust Puccinia recondita 8
ash rusts Puccinia sparganioides 4
stripe rust Puccinia striiformis f. tritici 4
stripe rust Puccinia striiformis 1
cherry-spruce rust Pucciniastrum areolatum 2
needle rust Pucciniastrum goeppertianum 1
fir needle rusts Pucciniastrum spp. 3
hemlock needle rust Pucciniastrum vaccinii 3
kudzu Pueraria montana var. lobata 35
cottony maple scale Pulvinaria innumerabilis 1
Mexican corn cyst nematode Punctodera chalcoensis 5
long-horned beetle Purpuricenus kaehleri 2
bark beetles Pycnarthrum spp. 1
flathead catfish Pylodictis olivaris 4
barley leaf stripe Pyrenophora graminea 1
sugarcane leafhopper Pyrilla perpusilla 1
heart rot Pyrofomes demidoffii 1
viburnum leaf beetle Pyrrhalta viburni 9
long-horned beetle Pyrrhidium sanguineum 3
Callery pear (Bradford pear) Pyrus calleryana 17
common pear Pyrus communis 1
pod rot Pythium myriotylum 3
Pythium diseases Pythium spp. 6
Burmese python Python molurus ssp. bivittatus 8
sawtooth oak Quercus acutissima 9
English oak Quercus robur 3
burrowing nematode Radopholus similis 6
Southern bacterial wilt Ralstonia solanacearum (excluding Race 3 Biovar 2) 12
Southern bacterial wilt - Race 1 Ralstonia solanacearum Race 1 1
Southern bacterial wilt Ralstonia solanacearum Race 3 Biovar 2 1
Keel-billed Toucan Ramphastos sulfuratus 2
Toco Toucan Ramphastos toco 4
brahminy blind snake Ramphotyphlops braminus 2
tall buttercup Ranunculus acris 6
creeping buttercup Ranunculus repens 1
veined rapa whelk Rapana venosa 3
northern pitch twig moth Retinia albicapitana 1
Rhabdocline needlecasts Rhabdocline spp. 5
ribbed pine borer Rhagium inquisitor 9
Blackspotted pliers support beetle Rhagium mordax 1
walnut husk fly Rhagoletis completa 1
blueberry maggot Rhagoletis mendax 1
apple maggot Rhagoletis pomonella 2
European buckthorn Rhamnus cathartica 17
Russian knapweed Rhaponticum repens 10
spear-marked black moth Rheumaptera hastata 3
cherry scallop shell moth Rheumaptera prunivorata 2
cane toad Rhinella marina 8
sheath spot of rice Rhizoctonia oryzae 2
Rhizoctonia damping-off, blight and rot Rhizoctonia solani 12
bread mold Rhizopus stolonifer 1
rose myrtle Rhodomyrtus tomentosus 4
jetbead Rhodotypos scandens 3
European pine shoot moth Rhyacionia buoliana 6
western pine tip moth Rhyacionia bushnelli 1
Nantucket pine tip moth Rhyacionia frustrana 6
subtropical pine tip moth Rhyacionia subtropica 1
Chilean pine spider weevil Rhyephenes humeralis 3
barley scald Rhynchosporium secalis 5
tar spot of maple Rhytisma acerinum 14
tar spot Rhytisma americanum 2
tar spot Rhytisma punctatum 1
tar spot Rhytisma salicinum 1
currant Ribes spp. 1
castorbean Ricinus communis 4
black locust Robinia pseudoacacia 29
long-horned beetle Ropalopus femoratus 1
long-horned beetle Ropalopus insubricus 1
Austrian fieldcress Rorippa austriaca 4
yellow fieldcress Rorippa sylvestris 1
Macartney rose Rosa bracteata 2
dog rose Rosa canina 2
multiflora rose Rosa multiflora 23
Seaside rose Rosa rugosa 1
Rosalia longicorn Rosalia alpina 4
banded alder borer Rosalia funebris 6
itchgrass Rottboellia cochinchinensis 6
highbush blackberry Rubus argutus 1
Himalaya blackberry Rubus armeniacus 9
European blackberry Rubus fruticosus 1
cutleaf blackberry Rubus laciniatus 2
wine raspberry Rubus phoenicolasius 8
red sorrel Rumex acetosella 3
curly dock Rumex crispus 3
potato psyllid Russelliana solanicola 1
wild sugarcane Saccharum spontaneum 2
grassy arrowhead Sagittaria graminea 1
arrowhead Sagittaria sagittifolia 1
hemispherical scale Saissetia coffeae 2
white willow Salix alba 1
goat willow Salix caprea 2
crack willow Salix fragilis 1
purpleosier willow Salix purpurea 1
Russian thistle Salsola kali 4
salsola Salsola spp. 2
Russian-thistle Salsola tragus 16
Mediterranean saltwort Salsola vermiculata 6
Mediterranean sage Salvia aethiopis 7
eared salvinia Salvinia auriculata 1
persimmon borer Sannina uroceriformis 5
poplar borer Saperda calcarata 6
roundheaded apple tree borer Saperda candida 1
poplar borer Saperda carcharias 4
poplar gall borer Saperda inornata 11
eyed squeaker Saperda perforata 2
small poplar borer Saperda populnea 5
long-horned beetle Saperda similis 2
long-horned beetles Saperda spp. 1
elm borer Saperda tridentata 3
bouncingbet Saponaria officinalis 7
slug Sarasinula plebeia 1
king vulture Sarcoramphus papa 1
beach naupaka Scaevola taccada 6
octopus tree Schefflera actinophylla 11
Brazilian peppertree Schinus terebinthifolius 19
red-humped caterpillar moth Schizura concinna 5
South African citrus thrips Scirtothrips aurantii 1
chilli thrips Scirtothrips dorsalis 1
downy mildew Sclerophthora macrospora 7
Sclerotinia snow mold Sclerotinia borealis 3
Sclerotinia rot Sclerotinia sclerotiorum 1
Sclerotinia stem rot Sclerotinia trifoliorum 3
fungus Sclerotium delphinii 3
stem rot of rice Sclerotium oryzae 4
southern blight Sclerotium rolfsii 16
bark beetles Scolytodes spp. 1
bark beetle Scolytogenes papuanus 2
bark beetle Scolytus carpini 10
European oak bark beetle Scolytus intricatus 12
middle elm tree split bark beetle Scolytus laevis 1
larch engraver Scolytus laricis 1
larger shothole borer Scolytus mali 11
smaller European elm bark beetle Scolytus multistriatus 12
bark beetle Scolytus pygmaeus 9
hickory bark beetle Scolytus quadrispinosus 1
birch bark beetle Scolytus ratzeburgi 12
shothole borer Scolytus rugulosus 11
banded elm bark beetle Scolytus schevyrewi 11
large elm beetle Scolytus scolytus 12
true fir bark beetles Scolytus spp. 3
Douglas-fir engraver Scolytus unispinosus 1
fir engraver Scolytus ventralis 6
ash root rot Scytinostroma galactinum 5
crownvetch Securigera varia 8
long-horned beetle Semanotus russicus 2
tansy ragwort Senecio jacobaea 12
common groundsel Senecio vulgaris 4
sicklepod Senna obtusifolia 6
Septoria leaf spot Septoria apiicola 4
Septoria leaf spot Septoria cornicola 9
Septoria leaf spot Septoria lycopersici 9
Septoria leaf spot and canker Septoria musiva 4
Septoria leaf spot of wheat Septoria tritici 9
bigpod sesbania Sesbania herbacea 5
red sesbania Sesbania punicea 3
giant foxtail Setaria faberi 8
yellow foxtail Setaria pumila 6
cattail grass Setaria pumila ssp. pallidefusca 5
bristly foxtail Setaria verticillata 4
green foxtail Setaria viridis 7
bladder campion Silene latifolia ssp. alba 4
nightflowering catchfly Silene noctiflora 2
cup rosinweed Silphium perfoliatum 1
blessed milkthistle Silybum marianum 11
vine borer Sinoxylon perforans 1
Siricid woodwasps Sirex juvencus 1
Sirex woodwasp Sirex noctilio 12
butternut canker Sirococcus clavigignenti-juglandacearum 5
Sirococcus blight of conifers Sirococcus conigenus 4
tumble mustard Sisymbrium altissimum 7
horsenettle Solanum carolinense 4
twoleaf nightshade Solanum diphyllum 4
bittersweet nightshade Solanum dulcamara 11
silverleaf nightshade Solanum elaeagnifolium 13
hairy nightshade Solanum physalifolium 3
buffalobur Solanum rostratum 6
wetland nightshade Solanum tampicense 8
turkeyberry Solanum torvum 7
tropical soda apple Solanum viarum 20
fire ant Solenopsis geminata 1
red imported fire ant Solenopsis invicta 12
black imported fire ant Solenopsis richteri 1
lawn burweed Soliva sessilis 2
perennial sowthistle Sonchus arvensis 11
moist sowthistle Sonchus arvensis ssp. uliginosus 1
spiny sowthistle Sonchus asper 5
annual sowthistle Sonchus oleraceus 6
European mountain-ash Sorbus aucuparia 5
sorghum Sorghum bicolor 2
johnsongrass Sorghum halepense 23
smooth cordgrass Spartina alterniflora 4
broadleaf buttonweed Spermacoce alata 1
avocado scab Sphaceloma perseae 4
head smut Sphacelotheca reiliana 3
Ashy gecko Sphaerodactylus elegans elegans 1
swainsonpea Sphaerophysa salsula 9
Diplodia blight Sphaeropsis sapinea 12
Sphaeropsis tip blight Sphaeropsis tumefaciens 8
powdery mildew Sphaerotheca phytoptophila 5
bronze knapweed root borer Sphenoptera jugoslavica 9
larch hawk moth Sphinx morio 4
Japanese spiraea Spiraea japonica 11
stubborn, little leaf Spiroplasma citri 4
fall armyworm Spodoptera frugiperda 12
Egyptian cottonworm Spodoptera littoralis 5
cotton leafworm, tobacco cutworm Spodoptera litura 1
black longicorn beetle Spondylis buprestoides 8
Florida betony Stachys floridana 6
black spot of elm Stegophora ulmea 4
common chickweed Stellaria pallida 7
gray leaf spot Stemphylium solani 8
dry rot of ears and stalks of maize Stenocarpella macrospora 4
dry rot of ears and stalks of maize Stenocarpella macrospora 4
white ear rot and seedling blight of maize Stenocarpella maydis 3
majestic long-horned beetle Stenocorus schaumii 2
conifer seedling weevil Steremnius carinatus 3
false turkey tail Stereum gausapatum 6
false turkey tail Stereum ostrea 1
red heart decay Stereum sanguinolentum 7
wood decay Stereum spp. 5
mango seed weevil Sternochetus mangiferae 1
flower longhorn Stictoleptura canadensis 1
Stigmina leaf spot Stigmina palmivora 14
Streptomyces soil rot (pox) Streptomyces ipomoeae 1
common scab of potato Streptomyces scabies 9
spotted dove Streptopelia chinensis 4
Eurasian collared-dove Streptopelia decaocto 4
witchweed Striga asiatica 3
cowpea witchweed Striga gesnerioides 1
purple witchweed Striga hermonthica 5
witchweed Striga spp. 5
kulsi teak borer Stromatium barbatum 9
long-horned beetle Stromatium fulvum 1
long-horned beetle Stromatium fulvum 8
long-horned beetle Stromatium longicorne 8
european starling Sturnus vulgaris 2
juniper twig pruner Styloxus bicolor 2
red-humped oakworm moth Symmerista canicosta 2
maple callus borer Synanthedon acerni 3
large redbelted clearwing Synanthedon culiciformis 4
peachtree borer Synanthedon exitiosa 4
lesser peachtree borer Synanthedon pictipes 5
dogwood borer Synanthedon scitula 4
potato wart disease Synchytrium endobioticum 3
common lilac Syringa vulgaris 2
paradise shelduck Tadorna variegata 4
medusahead Taeniatherum caput-medusae 11
pear thrips Taeniothrips inconsequens 2
rice delphacid Tagosodes orizicolus 3
Athel tamarisk Tamarix aphylla 7
saltcedar Tamarix ramosissima 3
tamarisk Tamarix spp. 10
common tansy Tanacetum vulgare 12
oak leaf blister Taphrina caerulescens 3
leaf curl Taphrina communis 13
peach leaf curl Taphrina deformans 13
leaf blister of poplar Taphrina populina 3
beech bark beetle Taphrorychus bicolor 5
dandelion Taraxacum officinale 12
camphor bush Tarchonanthus camphoratus 2
incised halberd fern Tectaria incisa 1
sugarberry psyllid Tetragonocephela flava 2
mulberry whitefly Tetraleurodes mori 2
red milkweed beetle Tetraopes tetrophthalmus 6
black spruce beetle Tetropium castaneum 6
brown spruce longhorn beetle Tetropium fuscum 6
larch longicorn beetle Tetropium gabrieli 9
shieldbacked pine seed bug Tetyra bipunctata 4
checkered beetle Thanasimus dubius 6
false codling moth Thaumatotibia leucotreta 8
pine processionary moth Thaumetopoea pityocampa 6
oak processionary moth Thaumetopoea processionea 1
black root rot Thielaviopsis basicola 2
field pennycress Thlaspi arvense 6
sacred ibis Threskiornis aethiopicus 3
introduced basswood thrips Thrips calcaratus 1
melon thrips Thrips palmi 1
thrips Thrips pini 3
onion thrips Thrips tabaci 9
bagworm Thyridopteryx ephemeraeformis 12
Thyronectria canker Thyronectria austroamericana 12
bark beetles Thysanoes spp. 2
dog-day cicada Tibicen spp. 3
spotted tilapia Tilapia mariae 1
kernel smut Tilletia barclayana 3
dwarf bunt, dwarf smut Tilletia controversa 1
karnal bunt Tilletia indica 6
ryegrass bunt Tilletia walkeri 2
common crane fly Tipula oleracea 2
European crane fly Tipula paludosa 3
european crane flies Tipula spp. 3
Tomato Mosaic Virus Tobamovirus ToMV 9
Tobacco Rattle Virus Tobravirus TRV 9
African grey hornbill Tockus nasutus 3
Tomato Bushy Stunt Virus Tombusvirus TBSV 2
pine shoot beetle Tomicus destruens 1
lesser pine shoot beetle Tomicus minor 12
larger pine shoot beetle Tomicus piniperda 12
shoot beetles Tomicus spp. 2
Japanese hedgeparsley Torilis japonica 8
European oak leaf roller Tortrix viridana 12
Tomato Spotted Wilt Virus Tospovirus TSWV 12
tuliptree scale Toumeyella liriodendri 4
pine tortoise scale Toumeyella parvicornis 6
Atlantic poison-oak Toxicodendron pubescens 4
eastern poison-ivy Toxicodendron radicans 12
poison-sumac Toxicodendron vernix 2
brown citrus aphid Toxoptera citricida 3
red-eared slider Trachemys scritpa elegans 4
metalic wood-boring beetle Trachys minutus 8
western salsify Tragopogon dubius 6
meadow salsify Tragopogon lamottei 3
Trametes wood decay Trametes hirsuta 10
turkey tail Trametes versicolor 3
rust Tranzschelia discolor 7
water-chestnut Trapa natans 10
pigeon tremex Tremex columba 3
ambrosia beetle Treptoplatypus oxyurus 1
Chinese tallowtree Triadica sebifera 17
puncturevine Tribulus terrestris 18
Cherry Mottle Leaf Virus Trichovirus CMLV 1
Peach Mosaic Virus Trichovirus PcMV 11
coat buttons Tridax procumbens 3
large hop clover Trifolium campestre 1
red clover Trifolium pratense 4
white clover Trifolium repens 6
citrus psylla Trioza erytreae 6
Wheat Streak Mosaic Virus Tritimovirus WSMV 1
khapra beetle Trogoderma granarium 1
ash plant bug Tropidosteptes amoenus 5
European hardwood ambrosia beetle Trypodendron domesticum 6
striped ambrosia beetle Trypodendron lineatum 12
ambrosia beetle Trypodendron signatum 2
bark beetles Trypodendron spp. 3
leaf spot Tubakia dryina 9
canker and die back of Siberian Elm Tubercularia ulmea 5
coltsfoot Tussilago farfara 15
nematode Tylenchulus semipenetrans 2
ash and privet borer Tylonotus bimaculatus 2
snow mold Typhula incarnata 4
flower longhorn Typocerus spp. 1
zebra longhorn Typocerus zebra 1
gorse Ulex europaeus 22
Siberian elm Ulmus pumila 10
euonymus scale Unaspis euonymi 1
arrowhead scale Unaspis yanonensis 2
peach wart Uncharacterised agent 3
rose rosette disease Uncharacterised agent RRD 7
Strumella canker Urnula craterium 2
white-horned horntail Urocerus albicornis 1
Siricid woodwasp Urocerus augur 1
yellow-horned horntail Urocerus gigas flavicornis 3
giant wood wasp Urocerus gigas gigas 9
wood wasp Urocerus gigas 1
liverseedgrass Urochloa panicoides 2
onion smut Urocystis cepulae 1
smut Urocystis colchici 2
dry bean rust Uromyces appendiculatus 12
rust Uromyces dianthi 1
gladiolus rust Uromyces transversalis 2
European stinging nettle Urtica dioica ssp. dioica 5
false smut Ustilaginoidea virens 6
loose smut Ustilago avenae 10
covered smut Ustilago hordei 3
smut Ustilago nuda 1
loose smut of wheat or barley Ustilago tritici 6
corn smut Ustilago zeae 6
shorthorned grasshopper Valanga nigricornis 1
Cytospora canker of spruce Valsa kunzei 13
canker Valsa quaternata 2
Cytospora canker Valsa sordida 2
Southern Lapwing Vanellus chilensis 2
Nile monitor Varanus niloticus 4
honey bee varroa mite Varroa destructor 4
peach scab Venturia carpophila 12
shepherd's crook leaf and shoot blight Venturia populina 1
willow scab Venturia saliciperda 1
shepherd's crook leaf and shoot blight Venturia tremulae 1
common mullein Verbascum thapsus 16
Brazil vervain Verbena litoralis var. brevibracteata 6
thymeleaf speedwell Veronica serpyllifolia 6
Verticillium wilt Verticillium albo atrum 3
Verticillium wilt Verticillium albo-atrum 3
Verticillium wilt Verticillium dahliae 8
wayfaringtree Viburnum lantana 2
European cranberrybush Viburnum opulus var. opulus 5
Japanese snowball Viburnum plicatum 2
common vetch Vicia sativa 1
big periwinkle Vinca major 11
common periwinkle Vinca minor 9
needle cast Virgella robusta 3
European mistletoe Viscum album 5
beach vitex Vitex rotundifolia 18
Volutella blight Volutella buxi 9
Volutella blight Volutella pachysandrae 1
red fox Vulpes vulpes 4
Maize Chlorotic Dwarf Virus Waikavirus MCDV 1
Stigmina fungus Wilsonomyces carpophilus 8
Japanese wisteria Wisteria floribunda 5
Chinese wisteria Wisteria sinensis 14
cocklebur Xanthium spp. 1
common cocklebur Xanthium strumarium 15
elm leaf beetle Xanthogaleruca luteola 5
citrus canker Xanthomonas axonopodis pv. citri 12
bacterial pustule of soybean disease Xanthomonas axonopodis pv. glycines 10
Common bacterial blight of beans, fuscous blight Xanthomonas axonopodis pv. phaseoli 1
black rot of crucifers Xanthomonas campestris pv. campestris 1
bacterial blight of hazelnut Xanthomonas campestris pv. corylina 2
angular leaf spot of cotton Xanthomonas campestris pv. malvacearum 3
angular leaf spot of strawberry Xanthomonas fragariae 8
yellow disease of hyacinth Xanthomonas hyacinthi 1
bacterial leaf blight of rice Xanthomonas oryzae pv. oryzae 3
bacterial leaf streak Xanthomonas oryzae pv. oryzicola 2
bacterial canker of poplar Xanthomonas populi 5
leaf streak/black chaff Xanthomonas translucens pv. translucens 7
woodwasp Xeris spectrum 1
heath snail Xerolenta obvia 1
black root rot Xylaria polymorpha 13
ambrosia beetle Xyleborinus alni 5
ambrosia beetle Xyleborinus andrewesi 3
ambrosia beetle Xyleborinus exiguus 1
fruit-tree pinhole borer Xyleborinus saxeseni 8
bark beetles Xyleborinus spp. 2
ambrosia beetle Xyleborus affinis 6
ambrosia beetle Xyleborus atratus 6
ambrosia beetle Xyleborus biuncus 3
ambrosia beetle Xyleborus californicus 1
ambrosia beetle Xyleborus celsus 6
ambrosia beetle Xyleborus cryptographus 7
European shot-hole borer Xyleborus dispar 13
ambrosia beetle Xyleborus dryographus 1
ambrosia beetle Xyleborus ferrugineus 8
redbay ambrosia beetle Xyleborus glabratus 7
ambrosia beetle Xyleborus granulipes 2
ambrosia beetle Xyleborus haberkorni 3
ambrosia beetle Xyleborus monographus 10
ambrosia beetle Xyleborus nitens 2
ambrosia beetle Xyleborus pelliculosus 4
ambrosia beetle Xyleborus perforans 10
ambrosia beetle Xyleborus perplexus 2
ambrosia beetle Xyleborus pumilus 2
ambrosia beetles Xyleborus spp. 1
ambrosia beetle Xyleborus xylographus 6
bark beetles Xylechinus spp. 2
bacterial leaf scorch Xylella fastidiosa 8
redshouldered bostrichid beetle Xylobiops basilaris 1
black twig borer Xylosandrus compactus 2
granulate ambrosia beetle Xylosandrus crassiusculus 5
black stem borer Xylosandrus germanus 6
camphor shot borer Xylosandrus mutilatus 6
thickset scolytid borer Xylosandrus solidus 8
ambrosia beetles Xylosandrus spp. 2
ambrosia beetles Xyloterinus spp. 3
gallmaking maple borer Xylotrechus aceris 2
rustic borer Xylotrechus colonus 1
long-horned beetle Xylotrechus pantherinus 1
long-horned beetles Xylotrechus spp. 3
long-horned beetle Xylotrechus stebbingi 10
spruce zebra beetle Xylotrechus undulatus 1
apple ermine moth Yponomeuta malinellus 5
cherry ermine moth Yponomeuta padellus 1
conifer sawfly Zadiprion townsendi 1
moorish idol Zanclus cornutus 2
spruce bud moth Zeiraphera canadensis 2
larch needleworm Zeiraphera improbana 1
pine needle sheathminer Zelleria haimbachi 6
white-winged dove Zenaida asiatica 2
leopard moth Zeuzera pyrina 4
Syrian beancaper Zygophyllum fabago 6