emerald ash borer

Insects: Boring Insects
Hexapoda (including Insecta) > Coleoptera > Buprestidae > Agrilus planipennis Fairmaire, 1888
Emerald ash borer (EAB) is native to Asia. It is known to be established in Michigan, Ontario, Ohio, Indiana, Illinois, and Maryland. EAB probably arrived in the United States on solid wood packing material from Asia. U.S. pathways include the movement of infested ash trees, limbs, firewood, logs, and untreated ash lumber. Hosts include all ash species; however, green ash, white ash, and black ash are more susceptible than Asian varieties. Females lay eggs 2 weeks after emergence. During this time, adults feed on the leaves, making them irregularly notched. Eggs are initially light-yellow, turning to brownishyellow before hatching. Eggs hatch in 1-2 weeks, and the tiny larvae bore through the bark and into the cambium layer. The creamy white larvae are 1 – 1 1/4 inches long with flat, broad, segmented bodies. Larvae feed in the cambium creating S-shaped, frass-packed tunnels. Adults begin emerging in mid-June leaving 0.1 – 0.2 inches "D" shaped emergence holes. It is a small, brassy-green, metallic woodboring beetle measuring 1/3 to 1/2 inches in length. Vertical splits in the bark are created by the tree forming callus tissue in response to larval feeding. The damage by the larvae causes general yellowing and thinning of the foliage followed by crown dieback and the eventual death of the tree. Basal sprouting and the presence of woodpeckers may indicate wood-boring beetle activity. After 1 to 2 years of infestation, the bark often falls off in pieces from damaged trees, exposing the insect galleries. The life cycle in Michigan takes between 1-2 years.

218 records

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Image Descriptor Description Photographer
1241001 Adult(s) David Cappaert
1241003 Adult(s) Howard Russell
1241011 Adult(s) Howard Russell
1398092 Adult(s) Steven Katovich
1398094 Adult(s) Steven Katovich
1439005 Adult(s) Edward Czerwinski
1523082 Adult(s)

on foliage

Daniel Herms
2100048 Adult(s) David Cappaert
2106098 Adult(s) David Cappaert
2159011 Adult(s) dorsal view; A. Kennedy, ex reared from ash tree; USA. Michigan, Wayne Co., Pest and Diseases Image Library
2159016 Adult(s)

lateral view; A. Kennedy, ex reared from ash tree; USA. Michigan, Wayne Co.,

Pest and Diseases Image Library
5016058 Adult(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016059 Adult(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016060 Adult(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016061 Adult(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016062 Adult(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
2159018 Adult(s) ventral view; A. Kennedy, ex reared from ash tree; USA. Michigan, Wayne Co., Pest and Diseases Image Library
5016065 Adult(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5038061 Adult(s) stuck in tree Joseph O'Brien
5284052 Adult(s) Collection information: 23-Jun-03, Michigan: Wayne Co. Natasha Wright
5284053 Adult(s) Collection information: 23-Jun-03, Michigan: Wayne Co. Natasha Wright
5343061 Adult(s) David Cappaert
5369161 Adult(s) Marianne Prue
5369162 Adult(s) Marianne Prue
5369163 Adult(s)

ovipositor extended

Marianne Prue
5369164 Adult(s)

adult laying eggs

Marianne Prue
5369165 Adult(s) Marianne Prue
5369277 Adult(s) Susan Ellis
5382310 Adult(s)

Emerald ash borer adult, in tunnel

Eric R. Day
5382311 Adult(s)

Emerald ash borer emerging

Eric R. Day
9000019 Adult(s) David Cappaert
9006028 Adult(s) Brian Sullivan
9006029 Adult(s) Brian Sullivan
9006030 Adult(s) Brian Sullivan
9006045 Adult(s) Brian Sullivan
9006046 Adult(s) Brian Sullivan
9006047 Adult(s) Brian Sullivan
9006049 Adult(s) Brian Sullivan
9009032 Adult(s) mating, late June 2003. David Cappaert
9009048 Control

Trunk injection - mauget capsules are used to inject nutrients or pesticides into cambium layer for uptake by the tree. Application for emerald ash borer control in this photo.  These are the original mauget capsules.

David Cappaert
9009080 Control Trunk injection - the wedgle is a syringe-like applicator, used here for injection of imidacloprid (Pointer) to control emerald ash borer. David Cappaert
9009086 Control Spray tank loading David Cappaert
9009087 Control Applying foliar spray David Cappaert
5110045 Control

Mauget Generation II capsule for injection of imicide

David Cappaert
5022054 Control chipping of trees Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022055 Control chipping of trees Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022059 Control Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022038 Control tree removal Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022040 Control tree removal Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022042 Control Marshalling Yard, Michigan Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016053 Damage Bark fissure, revealing galleries Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
1523081 Damage

entire cambium destroyed by feeding

Daniel Herms
4213091 Damage Epicormic branching; Suckering Minnesota Department of Natural Resources Archive
4213092 Damage dieback Minnesota Department of Natural Resources Archive
5016050 Damage Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
1523083 Damage

trees removed after infestation

Daniel Herms
5022062 Damage Trap still intact after tree limb breaks Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022047 Damage 2004 Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022048 Damage 2004 Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022050 Damage Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5029025 Damage Standing dead ash killed by EAB in southestern Michigan. Joseph O'Brien
5029026 Damage Ash killed by EAB in southeastern Michigan. Joseph O'Brien
5038045 Damage mortality Joseph O'Brien
5038047 Damage crown dieback Joseph O'Brien
5038048 Damage crown symptoms Joseph O'Brien
5038049 Damage crown symptoms Joseph O'Brien
5038050 Damage exit holes Joseph O'Brien
5038051 Damage Joseph O'Brien
1439006 Damage Edward Czerwinski
1439008 Damage new exit hole Edward Czerwinski
1439001 Damage D shaped exit hole David R. McKay
1439002 Damage D shaped exit hole David R. McKay
1439003 Damage note epicormic branches being formed as crown dies back Edward Czerwinski
1439004 Damage damage to red ash stand Edward Czerwinski
1398093 Damage Boulevard tree with heavy woodpecker activity. Ann Arbor, MI, 2004. Steven Katovich
1398090 Damage Dead trees in a landscape setting. Ann Arbor, MI, June 2005 Steven Katovich
1398091 Damage Steven Katovich
1249001 Damage crown thinning Troy Kimoto
1241004 Damage suckering Michigan Department of Agriculture
1241005 Damage bark split Michigan Department of Agriculture
1249003 Damage infested firewood Troy Kimoto
1249004 Damage bark crack on 10-year old sapling Troy Kimoto
1249005 Damage stem discoloration and bark crack on 10-year old sapling Troy Kimoto
1301042 Damage Crown symptoms in ash following attack Joseph O'Brien
1301043 Damage Epicormic branches on ash developing after attack. Joseph O'Brien
1301045 Damage Joseph O'Brien
1439010 Damage split bark symptoms David R. McKay
1439011 Damage thinned crown David R. McKay
1439012 Damage thinned crown David R. McKay
1457016 Damage Emerald ash borer infested ash trees along a street in Novi, MI. Photo taken in August 2002. Steven Katovich
1460035 Damage Dying tree James W. Smith
1460036 Damage Tree with suckers below attack James W. Smith
1460037 Damage D-shaped emergence hole James W. Smith
1460047 Damage exit hole Toby Petrice
1460033 Damage D-shaped emergence hole James W. Smith
1460073 Damage Dieback on mature tree - enhanced growth low; Beck Rd, Michigan; Sept 24, 2002 David Cappaert
1460074 Damage Ash logs in chipping yard. Millions of ash will be removed in Southeast Michigan this year. David Cappaert
1484004 Damage infested tree showing water sprouts or adventitious shoots Steven Katovich
1523034 Damage Daniel Herms
1523069 Damage Daniel Herms
1523070 Damage Daniel Herms
1523071 Damage

root sprouts and crown dieback are typical indicatiors of an infested tree

Daniel Herms
1523074 Damage

root sprouts and crown dieback are typical indicatiors of an infested tree

Daniel Herms
1523075 Damage Daniel Herms
1460076 Damage Small trees with epicormic shoots; Novi, Michigan; August 10, 2002 David Cappaert
1460077 Damage Livonia (Bicentennial Park), Michigan; Sept 24, 2002 David Cappaert
1523078 Damage Daniel Herms
5147089 Damage demage resulting from woodpeckers searching for a meal on an infested tree Art Wagner
5110043 Damage In the foreground is a stump that was killed by emerald ash borer David Cappaert
5110044 Damage thin crown David Cappaert
5343092 Damage David Cappaert
5382312 Damage

Emerald ash borer exit hole

Eric R. Day
5382315 Damage

Emerald ash borer damage to tree.

Eric R. Day
5382316 Damage

Emerald ash borer damage to tree.

Eric R. Day
5389740 Damage

woodpecker damage on infested tree

Jim Tresouthick
5389744 Damage

woodpecker damage on an infested tree

Jim Tresouthick
9009033 Egg(s) Egg cluster. EAB eggs are deposited in July, singly or in small clusters in bark furrows. David Cappaert
1337001 Egg(s) Early stage (ca. 1 mm in diameter) Houping Liu
1337002 Egg(s) Middle stage (ca. 1 mm in diameter) Houping Liu
1337003 Egg(s) Late stage (ca. 1 mm in diameter) Houping Liu
1337004 Egg(s) neonate inside egg shell (ca. 1 mm in diameter) Houping Liu
1372003 Feature(s)

close-up showing the characteristic "D" shaped exit hole of an emerald ash borer, and a woodpecker attack that killed a larva before emergence.

David Cappaert
1523072 Feature(s)

'D' shaped exit holes

Daniel Herms
1457030 Feature(s) Bark removed by woodpeckers searching for emerald ash borer larvae and pupae in late winter, early spring. Photo taken in Ann Arbor, MI, 2004. Steven Katovich
2159010 Feature(s) pronotum; A. Kennedy, ex reared from ash tree; USA. Michigan, Wayne Co Pest and Diseases Image Library
2159012 Feature(s) head front; A. Kennedy, ex reared from ash tree; USA. Michigan, Wayne Co., Pest and Diseases Image Library
2159013 Feature(s) head side; A. Kennedy, ex reared from ash tree; USA. Michigan, Wayne Co., Pest and Diseases Image Library
5016051 Feature(s) exit hole Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016052 Feature(s) emergence hole Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
2159015 Feature(s) thorax side; A. Kennedy, ex reared from ash tree; USA. Michigan, Wayne Co., Pest and Diseases Image Library
2159017 Feature(s) pygidium; A. Kennedy, ex reared from ash tree; USA. Michigan, Wayne Co., Pest and Diseases Image Library
5016063 Feature(s) uropygi on tip of larval abdomen Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
2159032 Feature(s)

pronotum copper/green; USA. Michigan, Wayne Co., A. Kennedy, ex reared from ash tree

Pest and Diseases Image Library
5110034 Feature(s) exit hole David Cappaert
5171035 Feature(s) forest canopy after infestation Daniel Herms
5171036 Feature(s) root sprouts and crown dieback are typical indicatiors of an infested tree Daniel Herms
5171037 Feature(s) root sprouts and crown dieback are typical indicatiors of an infested tree Daniel Herms
5022036 Feature(s) suckering Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022037 Feature(s) suckering; August 2004 Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016057 Feature(s) Gelleries Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5147090 Galleries Art Wagner
5389741 Galleries Jim Tresouthick
5389742 Galleries

bark removed to show galleries

Jim Tresouthick
5389743 Galleries

looking down on an old gallery within the canopy of a tree.

Jim Tresouthick
5382317 Galleries

Emerald ash borer tunneling

Eric R. Day
5389739 Galleries Jim Tresouthick
5382313 Galleries Eric R. Day
5382314 Galleries

Emerald ash borer larval tunnel.

Eric R. Day
5022044 Galleries April 2004 Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022045 Galleries April 2004 Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016054 Galleries Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5038052 Galleries Joseph O'Brien
5038053 Galleries Joseph O'Brien
5038054 Galleries Joseph O'Brien
5038055 Galleries Joseph O'Brien
5038056 Galleries Joseph O'Brien
5038057 Galleries Joseph O'Brien
5038058 Galleries Joseph O'Brien
5038059 Galleries with larvae Joseph O'Brien
5038060 Galleries Joseph O'Brien
5038046 Galleries Joseph O'Brien
5110029 Galleries David Cappaert
5110030 Galleries David Cappaert
5110031 Galleries David Cappaert
5022052 Galleries entire trunk damaged by galleries Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022053 Galleries with larvae Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022057 Galleries with larvae Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022058 Galleries Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
1460030 Galleries Apparently healthy tree with galleries of Emerald Ash Borer James W. Smith
1460031 Galleries Apparently healthy tree with galleries of Emerald Ash Borer James W. Smith
1460038 Galleries James W. Smith
1460042 Galleries Toby Petrice
1460046 Galleries Toby Petrice
1523073 Galleries

serpentine galleries packed with frass

Daniel Herms
1460075 Galleries Year-old galleries. Dead wood extends above area of tunneling. Note the callus tissue surrounds damaged area. Maybury State Park, Michigan; August 2002 David Cappaert
1460034 Galleries Dead tree girdled by galleries James W. Smith
1523079 Galleries

serpentine, frass-packed galleries under the bark

Daniel Herms
1523080 Galleries

close-up of frass-packed gallery

Daniel Herms
1484003 Galleries Photo taken in August 2002 in Livonia, MI. Steven Katovich
1523076 Galleries

serpentine galleries packed with frass

Daniel Herms
1523077 Galleries

close-up of frass in galleries

Daniel Herms
1439009 Galleries opened bark to expose galleries Edward Czerwinski
1439007 Galleries larval tunnels Edward Czerwinski
1301046 Galleries Joseph O'Brien
1301044 Galleries Joseph O'Brien
1249006 Galleries exposed larval galleries of current year attack to 10-year old sapling Troy Kimoto
1249002 Galleries larval galleries and exit holes on 10-year old sapling Troy Kimoto
1241012 Galleries Michigan Department of Agriculture
5171038 Infestation typical damage seen after an infestation Daniel Herms
5110033 Larva(e) prepupal cell David Cappaert
9009031 Larva(e) Larva feeding. Nearly mature larva feeding on cambium. David Cappaert
9006044 Larva(e) Brian Sullivan
1460056 Larva(e) Toby Petrice
1460057 Larva(e) Toby Petrice
1460071 Larva(e) Largest size class collected in early September, some individuals appeared to have completed feeding. Maybury State Park, Michigan; August 30, 2002 David Cappaert
1460072 Larva(e) Mixed larval stages collected from single location on tree. Maybury State Park, Michigan; August 30, 2002 David Cappaert
1460032 Larva(e) Larva in gallery with Canadian penny for comparison James W. Smith
5016055 Larva(e) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016056 Larva(e) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5016064 Larva(e) head of larvae Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
2159014 Larva(e) 28 Sept 2004, S. Katovich; USA. Michigan, Wayne Co., Pest and Diseases Image Library
5110032 Pupa(e) prepupal cell David Cappaert
5022075 Survey Surviellance 2003 Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
1241009 Survey Michigan Department of Agriculture
1241010 Survey Michigan Department of Agriculture
5022076 Trap(s) Girdled trap tree Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022077 Trap(s) Sticky band with photographs of EAB as visual attractant on girdled ash tree. Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022078 Trap(s) Sticky Band with photos of EAB as visual attractant on girdled ash tree Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022079 Trap(s) girdling ash tree for Emrald Ash Borer Surveillance Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022080 Trap(s) Girdled trap tree Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022063 Trap(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022064 Trap(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022065 Trap(s) Servicing Lindgren Funnel Trap Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022069 Trap(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022074 Trap(s) Girdled trap tree Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022029 Trap(s) Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5022030 Trap(s) Trap for Emerald Ash Borer, Erie, PA in 2003 Pennsylvania Department of Conservation and Natural Resources - Forestry Archive
5343094 Tree(s) David Cappaert


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