Emerald Ash Borer

Images of ash trees

​​The Illinois Department of Agriculture welcomes you to our new Emerald Ash Borer (EAB) page. 

Hopefully this information will answer most of your questions regarding the Emerald Ash Borer, if not all.  If you cannot find what you are looking for, please​ contact our Outreach Coordinator by emailing Scott.Schirmer@Illinois.gov or by calling (815) 787-5476

EAB is in Illinois

Native to Asia, the Emerald Ash Borer is an exotic beetle that was unknown in North America until June 2002 when it was discovered as the cause for the decline of many Ash trees in southeast Michigan and neighboring Windsor, Ontario, Canada. 

It has since been found in several states from the east coast, spanning across the Midwest and in June 2006, we discovered that it had taken up residence in Illinois. On June 9, 2006, two Ash trees in "The Windings" subdivision, near Lilly Lake in Kane County were positively identified as being infested with the Emerald Ash Borer (EAB).

EAB, Agrilus Planipennis Fairmaire (Coleoptera: Buprestidae), is identified as the causative agent in Ash tree mortality and decline. No bigger than a penny, this green menace has wreaked havoc on millions of Ash trees in the Midwest and if not controlled, could wipe out the Ash tree species in North America. The adult beetles nibble on Ash foliage but cause little damage. The larvae (the immature stage) feed on the inner bark or cambium layer, which is the crucial layer between the bark and wood of Ash trees, disrupting the tree's ability to transport water and nutrients. Emerald Ash Borer probably arrived in the United States on solid wood packing material carried in cargo ships or airplanes originating in its native Asia. 

EAB Facts:

  • It attacks only ash trees (Fraxiinus spp.).
  • Adult Beetles are metallic green and about 1/2 inch long.
  • Adults leave a D-shaped exit hole in the bark when they emerge in Spring.
  • Woodpeckers like EAB larvae; heavy woodpecker damage on ash trees may be a sign of infestation.
  • Firewood cannot be moved outside of many states, including Illinois, because of a Federal EAB Quarantine.
  • It probably came from Asia in wood packing material. 

Links

Questions about EAB? Click Here for a list of FAQs

News

 

 


 

 

 
  • Illinois EAB Quarantine Expanded
    • ​QUARANTINE NOW INCLUDES NEARLY 40 PERCENT OF THE STATE:
    • Nov. 10, 2011: The Illinois Department of Agriculture (IDOA) has added all of 14 counties and part of two others to its Emerald Ash Borer (EAB) quarantine. The expansion became necessary after the tree-killing beetle was detected this summer in four new counties. Traps placed throughout the state to track the spread of the beetle, captured its presence in DeWitt, Marion and Stark counties. Alert IDOA staff spotted the fourth infestation, in Effingham County, while traveling to Marion County to investigate the discovery there. 

 

  • EAB Management Seminar to be Held in Stark County on Dec. 8. 
    • OFFICIALS AND HOMEOWNERS IN STARK AND SURROUNDING COUNTIES ARE ENCOURAGED TO ATTEND:
    • Oct. 28, 2011: The Illinois Department of Agriculture, along with the University of Illinois Extension, is hosting an EAB Management Seminar on December 8 in Wyoming, IL. Homeowners, tree care professionals and municipality officials are encouraged to participate in light of the recent confirmation of the Emerald Ash Borer (EAB) in Stark County. EAB is a destructive green beetle whose larvae burrow into the bark of Ash trees, causing the trees to starve and eventually die. The seminar will be held at the Wi-Fi Community Center at 405 N. Galena Ave, Wyoming, IL from 10 a.m. to 2:00 p.m. 
  • EAB Discovered in Two More Illinois Counties
    • FINDS BRING NUMBER OF NEW DETECTS TO FOUR IN 2011:
    • Oct. 4, 2011: Traps set to monitor the movement of the Emerald Ash Borer have detected the tree-killing beetle in two additional Illinois counties. The Illinois Department of Agriculture (IDOA) today announced infestations have been confirmed in DeWitt and Stark counties.