| 5490377 |
European alder leafminer |
Fenusa dohrnii |
leaf mine |
| 5490380 |
hawthorn leafminer |
Profenusa canadensis |
leaf mine |
| 5490381 |
hawthorn leafminer |
Profenusa canadensis |
leaf mine |
| 5490382 |
hawthorn leafminer |
Profenusa canadensis |
leaf mine |
| 5443148 |
European alder leafminer |
Fenusa dohrnii |
Blotch mines produced by leafminer |
| 5445242 |
dogwood sawfly |
Macremphytus tarsatus |
Frass |
| 1860032 |
butternut woolyworm |
Eriocampa juglandis |
Ovipositor of female |
| 5444419 |
poplar sawfly |
Trichiocampus viminalis |
|
| 5444400 |
sawfly |
Nematus nigricornis |
|
| 5445237 |
dogwood sawfly |
Macremphytus tarsatus |
Late stage larvae massed on underside of leaf |
| 5458360 |
mountain-ash sawfly |
Pristiphora geniculata |
|
| 5445250 |
imported currantworm |
Nematus ribesii |
Feeding on leaf margin |
| 5445251 |
imported currantworm |
Nematus ribesii |
Last instar larvae |
| 5445248 |
imported currantworm |
Nematus ribesii |
Early stage larva feeding in leaf interior |
| 5445249 |
imported currantworm |
Nematus ribesii |
Early stage larva feeding on leaf margin |
| 5445246 |
imported currantworm |
Nematus ribesii |
Mating swarm in plant interior |
| 5445247 |
imported currantworm |
Nematus ribesii |
Eggs laid along leaf vain |
| 5445245 |
imported currantworm |
Nematus ribesii |
|
| 5445243 |
imported currantworm |
Nematus ribesii |
|
| 5445241 |
dogwood sawfly |
Macremphytus tarsatus |
Defoliation. Note old larval skins attached to leaves |
| 5445239 |
dogwood sawfly |
Macremphytus tarsatus |
Defoliation due to dogwood sawfly |
| 5445240 |
dogwood sawfly |
Macremphytus tarsatus |
Defoliation due to dogwood sawfly |
| 5445238 |
dogwood sawfly |
Macremphytus tarsatus |
Late stage larvae massed on underside of leaf |
| 5443550 |
larch sawfly |
Pristiphora erichsonii |
Characteristic curved twig caused by damage from egg laying |
| 5443551 |
larch sawfly |
Pristiphora erichsonii |
Characteristic curved twig caused by damage from egg laying
|
| 1476047 |
mountain-ash sawfly |
Pristiphora geniculata |
Larvae |
| 1476046 |
mountain-ash sawfly |
Pristiphora geniculata |
Larvae |
| 5443214 |
European alder leafminer |
Fenusa dohrnii |
Blotch mines produced by leafminer |
| 1860036 |
butternut woolyworm |
Eriocampa juglandis |
typical larva fully clothed with dense flocculence |
| 1860039 |
butternut woolyworm |
Eriocampa juglandis |
|
| 3066099 |
maple petiole borer |
Caulocampus acericaulis |
leaves severed from petioles in sugar maple |
| 1419263 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1394048 |
mountain-ash sawfly |
Pristiphora geniculata |
|
| 1860033 |
butternut woolyworm |
Eriocampa juglandis |
Row of eggs in midrib of black walnut leaflet (closeup) |
| 4836013 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
|
| 4836015 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
larvae prefer to feed on current-year foliage; older foliage may be eaten when new filiageis compeletely gonel |
| 4836014 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
|
| 1396050 |
larch sawfly |
Pristiphora erichsonii |
|
| 0886013 |
scarlet oak sawfly |
Caliroa quercuscoccineae |
note feeding damage |
| 0590087 |
oak sawfly |
Caliroa petiolata |
and damage |
| 1396056 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
|
| 1396057 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
|
| 4060060 |
larch sawfly |
Pristiphora erichsonii |
Laporte, Minnesota (Garfield plot) about 50% defoliation in the end of July 1953; after 3 successive years complete defoliation |
| 4060061 |
larch sawfly |
Pristiphora erichsonii |
defoliation in northern Minnesota in July 1953 |
| 1419205 |
common sawflies |
Nematus spp. |
on willow |
| 1419246 |
spiny ash sawfly |
Eupareophora parca |
early stage and damage on green ash |
| 1419248 |
spiny ash sawfly |
Eupareophora parca |
on green ash |
| 1419273 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419276 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419255 |
spiny ash sawfly |
Eupareophora parca |
on ash |
| 1419210 |
common sawflies |
Nematus spp. |
reared from larva found on willow |
| 1419204 |
common sawflies |
Nematus spp. |
on willow |
| 0805037 |
striped alder sawfly |
Hemichroa crocea |
defoliated alder |
| 1860031 |
butternut woolyworm |
Eriocampa juglandis |
female ovipositing in midrib of black walnut leaflet |
| 1419262 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419277 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1669021 |
oak sawfly |
Caliroa petiolata |
second and third generation |
| 4212011 |
birch leafminer |
Fenusa pusilla |
yellow tree |
| 4212014 |
birch leafminer |
Fenusa pusilla |
mines |
| 1419400 |
locust sawfly |
Nematus tibialis |
|
| 1246047 |
birch leafminer |
Fenusa pusilla |
|
| 1235029 |
oak sawfly |
Caliroa petiolata |
|
| 1326066 |
elm leafminer |
Kaliofenusa ulmi |
Typical leafmine |
| 4060063 |
larch sawfly |
Pristiphora erichsonii |
with 5th instar larvae, Cass Lake, Minnesota July '53 |
| 1398265 |
birch leafminer |
Fenusa pusilla |
Brown blistered leaves on a paper birch, late spring in northern Minnesota |
| 1455022 |
elm leafminer |
Kaliofenusa ulmi |
|
| 1419399 |
locust sawfly |
Nematus tibialis |
|
| 1457031 |
blackheaded ash sawfly |
Tethida barda |
Group of larvae on the under-side of an ash leaflet. |
| 1419216 |
blackheaded ash sawfly |
Tethida barda |
close up of site |
| 0718013 |
roseslug sawfly |
Endelomyia aethiops |
|
| 1419230 |
blackheaded ash sawfly |
Tethida barda |
|
| 1455053 |
poplar leaffolding sawfly |
Phyllocolpa bozemani |
Older larva |
| 1419386 |
locust sawfly |
Nematus tibialis |
Late stage |
| 1246049 |
birch leafminer |
Fenusa pusilla |
|
| 1455050 |
poplar leaffolding sawfly |
Phyllocolpa bozemani |
Young larva in leaf fold |
| 1455015 |
European alder leafminer |
Fenusa dohrnii |
|
| 1419396 |
locust sawfly |
Nematus tibialis |
|
| 1419395 |
locust sawfly |
Nematus tibialis |
|
| 1419217 |
blackheaded ash sawfly |
Tethida barda |
close up of site |
| 0590073 |
scarlet oak sawfly |
Caliroa quercuscoccineae |
on oak |
| 1398047 |
dogwood sawfly |
Macremphytus tarsatus |
Typical resting posture |
| 1419259 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419220 |
blackheaded ash sawfly |
Tethida barda |
early stage |
| 1419213 |
blackheaded ash sawfly |
Tethida barda |
|
| 1419214 |
blackheaded ash sawfly |
Tethida barda |
|
| 1419383 |
locust sawfly |
Nematus tibialis |
late stage instar |
| 1419387 |
locust sawfly |
Nematus tibialis |
last instar |
| 1246048 |
birch leafminer |
Fenusa pusilla |
Exposed from leaf mine |
| 1398063 |
blackheaded ash sawfly |
Tethida barda |
Group of later instar larvae on an ash leaflet |
| 1246041 |
elm leafminer |
Kaliofenusa ulmi |
Larval tunneling |
| 1419407 |
locust sawfly |
Nematus tibialis |
|
| 1246050 |
birch leafminer |
Fenusa pusilla |
Characteristic mining damage |
| 1419212 |
blackheaded ash sawfly |
Tethida barda |
|
| 1246042 |
elm leafminer |
Kaliofenusa ulmi |
Exposed from mine |
| 1455052 |
poplar leaffolding sawfly |
Phyllocolpa bozemani |
Older larva |
| 1398043 |
mountain-ash sawfly |
Pristiphora geniculata |
|
| 1393045 |
European alder leafminer |
Fenusa dohrnii |
|
| 4212031 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
defoliation |
| 1398075 |
butternut woolyworm |
Eriocampa juglandis |
|
| 1326093 |
European alder leafminer |
Fenusa dohrnii |
Typical leafmines in Alder |
| 1398206 |
larch sawfly |
Pristiphora erichsonii |
Small group of larvae |
| 5388280 |
sawfly |
Macremphytus spp. |
A pine sawfly is on this needle. |
| 5388279 |
sawfly |
Macremphytus spp. |
A pine sawfly clings to pine needles. |
| 1419411 |
locust sawfly |
Nematus tibialis |
|
| 1455019 |
elm leafminer |
Kaliofenusa ulmi |
Oviposition punctures in leaf |
| 1455020 |
elm leafminer |
Kaliofenusa ulmi |
Exposed from leaf mine |
| 4212030 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
defoliation |
| 1455016 |
birch leafminer |
Fenusa pusilla |
|
| 1455017 |
elm leafminer |
Kaliofenusa ulmi |
|
| 1455018 |
elm leafminer |
Kaliofenusa ulmi |
Oviposition punctures in elm leaf |
| 1199011 |
birch leafminer |
Fenusa pusilla |
Leaf mines |
| 5429852 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 5429855 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 5429856 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 5429884 |
bristly roseslug |
Cladius difformis |
feeding damage |
| 5429885 |
bristly roseslug |
Cladius difformis |
feeding damage |
| 5429886 |
bristly roseslug |
Cladius difformis |
distant view of larva and damage |
| 1246046 |
birch leafminer |
Fenusa pusilla |
|
| 3067025 |
blackheaded ash sawfly |
Tethida barda |
|
| 3057070 |
scarlet oak sawfly |
Caliroa quercuscoccineae |
feeding group |
| 2651034 |
scarlet oak sawfly |
Caliroa quercuscoccineae |
and damage |
| 2107044 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 1419272 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1669020 |
oak sawfly |
Caliroa petiolata |
larvae and defoliation |
| 1419245 |
spiny ash sawfly |
Eupareophora parca |
earlty stage and damage on green ash |
| 1419226 |
blackheaded ash sawfly |
Tethida barda |
|
| 1419238 |
blackheaded ash sawfly |
Tethida barda |
|
| 1419244 |
spiny ash sawfly |
Eupareophora parca |
damage on upper surface of ash |
| 1419221 |
blackheaded ash sawfly |
Tethida barda |
|
| 1419250 |
spiny ash sawfly |
Eupareophora parca |
on green ash |
| 1419236 |
blackheaded ash sawfly |
Tethida barda |
|
| 1419223 |
blackheaded ash sawfly |
Tethida barda |
with castskins and head capsules |
| 1419234 |
blackheaded ash sawfly |
Tethida barda |
|
| 1419253 |
spiny ash sawfly |
Eupareophora parca |
on ash |
| 1326089 |
hawthorn leafminer |
Profenusa canadensis |
Blotch leafmine typically produced |
| 1669019 |
oak sawfly |
Caliroa petiolata |
defoliation |
| 1419241 |
blackheaded ash sawfly |
Tethida barda |
|
| 1419249 |
spiny ash sawfly |
Eupareophora parca |
on green ash |
| 1419378 |
locust sawfly |
Nematus tibialis |
|
| 1398259 |
birch leafminer |
Fenusa pusilla |
Early leaf mines |
| 2651035 |
scarlet oak sawfly |
Caliroa quercuscoccineae |
|
| 5387988 |
sawflies |
Caliroa spp. |
A cluster of larvae feeding on pin oak, leaving behind their characteristic skeletonized leaf damage. We believe these larvae to be scarlet oak sawfly, Caliroa quercuscoccineae, but they could be pin oak sawfly, C. lineata, or another species that feeds on pin oak, C. petiolata. September 2, 2008 |
| 1476093 |
European alder leafminer |
Fenusa dohrnii |
leaf mines |
| 1476094 |
birch leafminer |
Fenusa pusilla |
leaf mines |
| 1476095 |
birch leafminer |
Fenusa pusilla |
leaf mines |
| 1476096 |
pear sawfly |
Caliroa cerasi |
early instar larvae near hatched egg |
| 1476097 |
pear sawfly |
Caliroa cerasi |
|
| 5424251 |
larch sawfly |
Pristiphora erichsonii |
Group of larvae |
| 5424252 |
larch sawfly |
Pristiphora erichsonii |
single larva |
| 5424253 |
larch sawfly |
Pristiphora erichsonii |
single larva |
| 5424254 |
larch sawfly |
Pristiphora erichsonii |
single larva |
| 5424243 |
elm leafminer |
Kaliofenusa ulmi |
Leafminer larvae inside leaf mines |
| 5424244 |
elm leafminer |
Kaliofenusa ulmi |
Blister like leaf mine, larvae can be seen inside the mines. |
| 5410930 |
common sawfly |
Apethymus filiformis |
|
| 5410931 |
common sawfly |
Apethymus filiformis |
|
| 5410932 |
common sawfly |
Apethymus filiformis |
|
| 5051063 |
elm leafminer |
Kaliofenusa ulmi |
Elm leaf miner injury. |
| 5051064 |
elm leafminer |
Kaliofenusa ulmi |
Elm leaf miner. |
| 5051065 |
elm leafminer |
Kaliofenusa ulmi |
|
| 5051066 |
elm leafminer |
Kaliofenusa ulmi |
|
| 5393595 |
elm leafminer |
Kaliofenusa ulmi |
Leafmining injury produced by larvae |
| 5393594 |
elm leafminer |
Kaliofenusa ulmi |
Leafmining injury produced by larvae |
| 5049009 |
birch leafminer |
Fenusa pusilla |
|
| 5049010 |
birch leafminer |
Fenusa pusilla |
|
| 5049011 |
birch leafminer |
Fenusa pusilla |
|
| 5049012 |
birch leafminer |
Fenusa pusilla |
|
| 1523059 |
birch leafminer |
Fenusa pusilla |
|
| 1523060 |
birch leafminer |
Fenusa pusilla |
mating |
| 1523061 |
birch leafminer |
Fenusa pusilla |
|
| 1523017 |
birch leafminer |
Fenusa pusilla |
|
| 1540194 |
common sawfly |
|
4/8-12/1991 |
| 1540196 |
common sawfly |
|
4/8-12/1991 |
| 1540197 |
common sawfly |
|
4/8-12/1991 |
| 1540198 |
common sawfly |
|
4/8-12/1991 |
| 1540199 |
common sawfly |
|
4/8-12/1991 |
| 1540195 |
common sawfly |
|
|
| 1540193 |
common sawfly |
|
4/8-12/1991 |
| 5389005 |
sawfly |
Macremphytus spp. |
|
| 5370016 |
sawflies |
Caliroa spp. |
larvae feeding on the lower surface of a bur oak leaf |
| 5370015 |
sawflies |
Caliroa spp. |
Group of larvae feeding on the undersurface of a bur oak leaf |
| 5370017 |
sawflies |
Caliroa spp. |
feeding larvae, lower surface of a bur oak leaf |
| 5370018 |
sawflies |
Caliroa spp. |
Larvae feeding on the lower surface of a bur oak leaf |
| 5370019 |
sawflies |
Caliroa spp. |
Larvae feeding on the lower surface of a bur oak leaf |
| 5370020 |
sawflies |
Caliroa spp. |
Larvae feeding on the lower surface of a bur oak leaf |
| 5370021 |
sawflies |
Caliroa spp. |
feeding injury as it appears on the uppper surface of the leaf |
| 5369687 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 5369688 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 5369689 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 5369679 |
birch leafminer |
Fenusa pusilla |
|
| 5369680 |
birch leafminer |
Fenusa pusilla |
|
| 5369685 |
elm leafminer |
Kaliofenusa ulmi |
|
| 5369690 |
elm leafminer |
Kaliofenusa ulmi |
|
| 5369691 |
elm leafminer |
Kaliofenusa ulmi |
|
| 5369692 |
elm leafminer |
Kaliofenusa ulmi |
|
| 5369693 |
elm leafminer |
Kaliofenusa ulmi |
|
| 5369694 |
elm leafminer |
Kaliofenusa ulmi |
|
| 1398260 |
birch leafminer |
Fenusa pusilla |
|
| 1398262 |
birch leafminer |
Fenusa pusilla |
A heavily infested landscape tree |
| 5211014 |
elm leafminer |
Kaliofenusa ulmi |
Adults on leaves of host plant. |
| 5209036 |
imported currantworm |
Nematus ribesii |
Late stage larvae |
| 5209037 |
imported currantworm |
Nematus ribesii |
Newly hatched larvae and associated shothole feeding injury initially produced |
| 5209038 |
imported currantworm |
Nematus ribesii |
Early stage larvae |
| 5209039 |
imported currantworm |
Nematus ribesii |
|
| 5209040 |
imported currantworm |
Nematus ribesii |
|
| 5209041 |
imported currantworm |
Nematus ribesii |
|
| 5209042 |
imported currantworm |
Nematus ribesii |
|
| 1518007 |
oak slug sawfly |
Caliroa annulipes |
Slug oak sawfly caterpillars |
| 1518008 |
oak slug sawfly |
Caliroa annulipes |
Slug oak sawfly caterpillars |
| 1491038 |
mountain-ash sawfly |
Pristiphora geniculata |
Larvae feeding on leaf |
| 1484013 |
blackheaded ash sawfly |
Tethida barda |
|
| 1479018 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
Characteristic feeding damage on a young open-grown white spruce. Photo taken near Park Rapids, Minnesota. |
| 1224179 |
pear sawfly |
Caliroa cerasi |
Pear slug (a sawfly) Damage to Peach leaves. |
| 1224178 |
pear sawfly |
Caliroa cerasi |
Pearslug (A sawfly) on peachleaf. |
| 1224063 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 1224065 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 1224066 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 2200082 |
elm leafminer |
Kaliofenusa ulmi |
leafmines about 10 days after egg hatch |
| 2200085 |
elm leafminer |
Kaliofenusa ulmi |
Leafmines about 5-6 days after egg hatch |
| 2200078 |
California pear sawfly |
Pristiphora abbreviata |
May 2, 2006 |
| 2200091 |
California pear sawfly |
Pristiphora abbreviata |
Adult ovipositing in emerging pear leaf. May 2, 2006. |
| 5000004 |
California pear sawfly |
Pristiphora abbreviata |
Adult ovipositing in emerging pear leaf. May 2, 2006. |
| 5000014 |
California pear sawfly |
Pristiphora abbreviata |
Adult ovipositing in emerging pear leaf. May 2, 2006. |
| 5000015 |
California pear sawfly |
Pristiphora abbreviata |
Adult resting on pear leaf petiole. April 22, 2006. |
| 2200035 |
California pear sawfly |
Pristiphora abbreviata |
Oviposition punctures visible after leaves unroll. |
| 2200036 |
California pear sawfly |
Pristiphora abbreviata |
Early shothole wounds produced by recently emerged larvae |
| 2200038 |
elm leafminer |
Kaliofenusa ulmi |
May 7, 2006 |
| 2200039 |
elm leafminer |
Kaliofenusa ulmi |
May 8, 2006 |
| 2200040 |
elm leafminer |
Kaliofenusa ulmi |
May 6, 2006 |
| 2200041 |
elm leafminer |
Kaliofenusa ulmi |
larvae silhouetted within leaf mine of Siberian elm leaf; May 28, 2006 |
| 2145098 |
dogwood sawfly |
Macremphytus tarsatus |
|
| 2145099 |
blackheaded ash sawfly |
Tethida barda |
|
| 1455051 |
poplar leaffolding sawfly |
Phyllocolpa bozemani |
Leaf fold symptom produced by young larva |
| 1455049 |
poplar leaffolding sawfly |
Phyllocolpa bozemani |
Young larva in leaf fold |
| 1455021 |
elm leafminer |
Kaliofenusa ulmi |
|
| 1396055 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
Chippewa National Forest |
| 1393046 |
European alder leafminer |
Fenusa dohrnii |
|
| 1393044 |
European alder leafminer |
Fenusa dohrnii |
Inside leaf mines |
| 1274061 |
oak sawfly |
Caliroa petiolata |
Tiger Valley, NC |
| 1274062 |
oak sawfly |
Caliroa petiolata |
Yancey County, NC |
| 1627041 |
roseslug sawfly |
Endelomyia aethiops |
|
| 1254038 |
brownheaded ash sawfly |
Tomostethus multicinctus |
Larvae on bark migrating to pupation sites. |
| 1325013 |
California pear sawfly |
Pristiphora abbreviata |
larva and feeding injury |
| 1325014 |
California pear sawfly |
Pristiphora abbreviata |
larva and feeding injury |
| 1325015 |
California pear sawfly |
Pristiphora abbreviata |
larva and feeding injury |
| 1122012 |
European apple sawfly |
Hoplocampa testudinea |
damage to fruit |
| 1435082 |
oak sawfly |
Caliroa petiolata |
|
| 1419197 |
willow sawfly |
Nematus ventralis |
|
| 1419198 |
willow sawfly |
Nematus ventralis |
|
| 1419199 |
willow sawfly |
Nematus ventralis |
|
| 1419201 |
willow sawfly |
Nematus ventralis |
|
| 1419265 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419266 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419269 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419275 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419278 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419279 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419281 |
dusky birch sawfly |
Croesus latitarsus |
|
| 1419391 |
locust sawfly |
Nematus tibialis |
|
| 1419392 |
locust sawfly |
Nematus tibialis |
ant with larva |
| 1419403 |
locust sawfly |
Nematus tibialis |
|
| 1419254 |
spiny ash sawfly |
Eupareophora parca |
on ash |
| 1419251 |
spiny ash sawfly |
Eupareophora parca |
on ash |
| 1419206 |
common sawflies |
Nematus spp. |
found on willow |
| 1860030 |
butternut woolyworm |
Eriocampa juglandis |
with fully formed adult |
| 1860034 |
butternut woolyworm |
Eriocampa juglandis |
full-grown larva with flocculence removed |
| 1860035 |
butternut woolyworm |
Eriocampa juglandis |
Row of eggs in midrib of butternut leaflet |
| 1860037 |
butternut woolyworm |
Eriocampa juglandis |
left, inner parchment-like lining of cocoon; right, cocoon |
| 1860038 |
butternut woolyworm |
Eriocampa juglandis |
eggs in leaflet midrib |
| 1860040 |
butternut woolyworm |
Eriocampa juglandis |
adults mating; smaller male; larger female |
| 1860041 |
butternut woolyworm |
Eriocampa juglandis |
newly molted castskins (with flocculence) on black walnut leaf |
| 1860042 |
butternut woolyworm |
Eriocampa juglandis |
prepupa, the overwintering stage |
| 1860043 |
butternut woolyworm |
Eriocampa juglandis |
dead midrib and leaflet tissue revealing site of oviposition |
| 1860044 |
butternut woolyworm |
Eriocampa juglandis |
Newly hatchedlarvae with feeding damage typical of young larvae |
| 4060064 |
larch sawfly |
Pristiphora erichsonii |
pupal cases |
| 4060072 |
larch sawfly |
Pristiphora erichsonii |
stung by parasite |
| 4836030 |
mountain-ash sawfly |
Pristiphora geniculata |
larvae consume all but mid veins on leaves |
| 4836031 |
mountain-ash sawfly |
Pristiphora geniculata |
when larvae are disturbed, they tend to rear up into an S-shaped position |
| 4836020 |
birch leafminer |
Fenusa pusilla |
larvae make blotch mines which eventually give leaves a brown, wrinkled appearance |
| 0949057 |
larch sawfly |
Pristiphora erichsonii |
|
| 0949058 |
larch sawfly |
Pristiphora erichsonii |
|
| 1791036 |
grape sawfly |
Waldheimia vitis |
note double row of sharp, black tubercles on each segment, feed in groups on undersides of leaves, tattered appearance of attacked leaf is apparent |
| 3057069 |
scarlet oak sawfly |
Caliroa quercuscoccineae |
feeding group (also known as slug oak sawfly) |
| 1748011 |
scarlet oak sawfly |
Caliroa quercuscoccineae |
feeding group |
| 0907026 |
birch leafminer |
Fenusa pusilla |
trees attacked appear off-color |
| 0907027 |
birch leafminer |
Fenusa pusilla |
inner leaf tissue may be completely destroyed (note the appearance of the black frass in mines)
larva in leaf on gray birch |
| 1669018 |
oak sawfly |
Caliroa petiolata |
defoliation |
| 0805038 |
striped alder sawfly |
Hemichroa crocea |
|
| 1669016 |
oak sawfly |
Caliroa petiolata |
damage on Little Mountain at Hayter S. Gap |
| 1669017 |
oak sawfly |
Caliroa petiolata |
|
| 3066098 |
maple petiole borer |
Caulocampus acericaulis |
petiole hollowed out in sugar maple |
