Description
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.Resources
- Pest Alert - USDA Forest Service
- Misc. Forest Service Publication - USDA Forest Service
- Emerald Ash Borer: Research and Technology Development Meeting 2004 - USDA Forest Service
- Fact Sheet - Canadian Food Inspection Agency
- Emerald Ash Borer Home Page - USDA Forest Service
- North American Distribution Map 2004 - USDA Forest Service
- Native Range in Asia - USDA Forest Service
- Emerald Ash Borer in Michigan, Ohio and Indiana -
Selected Images
9000019 emerald ash borer Agrilus planipennis Adult(s) David Cappaert |
1460072 emerald ash borer Agrilus planipennis Larva(e) David Cappaert |
9009033 emerald ash borer Agrilus planipennis Egg(s) David Cappaert |
9009031 emerald ash borer Agrilus planipennis Larva(e) David Cappaert |
1439002 emerald ash borer Agrilus planipennis Damage David R. McKay |
1523082 emerald ash borer Agrilus planipennis Adult(s) Daniel Herms |
1523078 emerald ash borer Agrilus planipennis Damage Daniel Herms |
1523071 emerald ash borer Agrilus planipennis Damage Daniel Herms |
1460032 emerald ash borer Agrilus planipennis Larva(e) James W. Smith |
5369165 emerald ash borer Agrilus planipennis Adult(s) Marianne Prue |
2159016 emerald ash borer Agrilus planipennis Adult(s) Pest and Diseases Image Library |
1460071 emerald ash borer Agrilus planipennis Larva(e) David Cappaert |
Invasive Listing Sources
- Everglades Cooperative Invasive Species Management Area
- Florida Invasive Species Partnership
- Idaho Invasive Species Act
- Invasive Species of Concern in Georgia
- National Cooperative Agricultural Pest Survey Target Species - Program
- North American Forest Commission Exotic Forest Pest Information System
- Wisconsin's Invasive Species Identification, Classification and Control Rule
Taxonomic Rank
Kingdom: Animalia |
Phylum: Arthropoda |
Subphylum: Atelocerata |
Class: Hexapoda (including Insecta) |
Infraclass: Neoptera |
Subclass: Pterygota |
Order: Coleoptera |
Suborder: Polyphaga |
Superfamily: Buprestoidea |
Family: Buprestidae |
Subfamily: Agrilinae |
Tribe: Agrilini |
Genus: Agrilus |
Other System Links
NPDN Pest: INAHQJACommon Name Reference: |
Web Search - http://zipcodezoo.com/Animals/A/Agrilus_planipennis/ |
Scientific Name Reference: | Web Search - http://zipcodezoo.com/Animals/A/Agrilus_planipennis/ |