Humans adores trees. But humans also migrate and trade, habits that led to the accidental introduction of insects and diseases that harm trees and alter the landscape. Examples are easy to find and may be outside your front door: American elms that once dotted streets across America succumbed to Dutch elm disease. Now all colors of ash species – black, green, white, pumpkin, and blue – are threatened by emerald ash borer. The already uncommon butternut tree, also known as white walnut, faces the possibility of extinction from a mysterious attacker. Many invasive insects and fungi come from regions where native trees have evolved to resist their attacks. When these species enter the United States, they find trees that lack this resistance. There's no immediate end to this dismal pipeline, but there is hope on the horizon.
Emerald Ash Borer
USDA. APHIS. PPQ. CPHST. Identification Technology Program.ITP is pleased to announce the release of seven new screening aids for important Coleoptera and Lepidoptera pests. These were designed specifically to be used when examining traps or through visual inspection as part of surveys conducted by state cooperators for the APHIS PPQ Cooperative Agricultural Pest Survey (CAPS) program. CAPS surveys help officials monitor and gather data about pests on high-risk hosts and commodities, including pests that may have been recently introduced to the United States. The new screening aids are for city longhorn beetle, Agrilus of concern, pinecone and bamboo longhorn beetles, tomato fruit borers, coconut rhinoceros beetles, spruce longhorn beetles, and velvet longhorn beetle. All of ITP's CAPS screening aids can be found on the ITP website and on the CAPS Resource and Collaboration site Screening Aids page.
USDA. Animal and Plant Health Inspection Service.
An interactive story map of the USDA’s history of combating the infestation and the continuing efforts to protect ash trees in the U.S.
USDA. FS. Northern Research Station.Select the non-indigenous forest pest to view maps depicting state and county distribution. Produced by: USDA, FS, Forest Health Protection, and its partners.
University of Georgia. Center for Invasive Species and Ecosystem Health.Provides state, county, point and GIS data. Maps can be downloaded and shared.
Emerald Ash Borer Information Network.See "EAB Locations" section, includes state maps
USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.
U.S. Government Printing Office. Electronic Code of Federal Regulations.
USDA. APHIS. Plant Protection and Quarantine.
Emerald Ash Borer Information Network.Provides federal and state quarantine information.
USDA. Animal and Plant Health Inspection Service.
See what states have a federal quarantine for any of the targeted Hungry Pests, and identify which pests or diseases are at greatest risk due to a suitable habitat. In addition to federal quarantines, state-level quarantines might apply see State Summaries of Plant Protection Laws and Regulations (National Plant Board).
The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Emerald Ash Borer.
Council or Task Force
Washington State Recreation and Conservation Office. Washington Invasive Species Council.
European and Mediterranean Plant Protection Organization.
National Plant Diagnostic Network.
New York Invasive Species Clearinghouse.
Emerald ash borer was first confirmed in New York in June 2009 near Randolph, in western Cattaraugus County. The rapid spread of the beetle through North America is most likely due to the transport of infested firewood, ash nursery stock, unprocessed ash logs, and other ash products. In an effort to slow the continued spread of EAB, both Federal and New York State agencies have instituted quarantines of infested areas to regulate the transport of ash products.
Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).
USDA. FS. Northeastern Area State and Private Forestry.
Canadian Food Inspection Agency.
Natural Resources Canada. Canadian Forest Service.
State and Local Government
Maryland Department of Natural Resources. Forest Service.
Pennsylvania Department of Conservation and Natural Resources.
The emerald ash borer is a half-inch long metallic green beetle with the scientific name Agrilus planipennis Fairmaire. Larvae of this beetle feed under the bark of ash trees. Their feeding eventually girdles and kills branches and entire trees. Emerald ash borer was first identified in North America in southeastern Michigan in 2002.
South Dakota Department of Agriculture.
Wisconsin Department of Natural Resources.
Minnesota Department of Agriculture.
New Jersey Department of Agriculture.
Indiana Department of Natural Resources. Entomology and Plant Pathology.
Iowa State University. Extension and Outreach. Pesticide Safety Information Program.
Michigan State University. Integrated Pest Management Program.
See also: IPM Scouting in Woody Landscape Plants for more pests and diseases
Nebraska Forest Service.
The Nebraska Department of Agriculture (NDA) has confirmed that emerald ash borer (EAB) was discovered during a site inspection in Omaha's Pulaski Park on June 6, 2016. Nebraska becomes the 27th state to confirm the presence of EAB, joining neighboring states of Iowa, Missouri, Kansas and Colorado. NDA has issued a quarantine (Oct 2018; PDF | 263 KB) prohibiting regulated articles from leaving the quarantine area (PDF | 319 KB).
- Integrated Taxonomic Information System. Agrilus planipennis. [Accessed Sep 10, 2014].
- McCullough, D. and R. Usborne. 2015. Frequently Asked Questions. Michigan State University, Emerald Ash Borer Information Network.
- Poland, T.M., and D.G. McCullough. 2006. Emerald ash borer: invasion of the urban forest and the threat to North America's ash resource. Journal of Forestry 104(3):118-124.