An emerald ash borer beetle was from residents in the City of Janesville. They removed the partially emerged beetle from one of their ash trees during the previous day. Identification of the beetle was confirmed as EAB on June 25. At least one tree on the property was confirmed by a Wisconsin Department of Agriculture Trade and Consumer Protection specialist as being heavily infested.
Emerald ash borer has also been confirmed for the first time on state owned lands in Kenosha County. EAB adults were captured on two separate survey traps in the Richard Bong State Recreation Area on June 22. Infested trees were also discovered on the property. Survey efforts in that state park and many others are happening this year under the direction of DNR forest health specialists. Visitors to RBSRA will no longer be allowed to remove firewood from the property.
An emerald ash borer beetle was also collected in a tree in the Village of Mukwonago at the intersection of State Highway 83 and County Highway NN in Waukesha County. An arborist working for the village notified staff with DATCP of the possible infestation. The specimen was sent to federal identifiers that day and subsequently confirmed as EAB on June 20.
An adult emerald ash borer beetle was also collected June 7 near a tree that displayed signs of EAB infestation on a private woodlot in southern Walworth County. The location is roughly 10 miles southwest of Lake Geneva and about one-half mile north of the state line. EAB surveyors with the Dept. of Agriculture, Trade and Consumer Protection were notified of the possible infestation by a colleague with the Illinois Dept. of Agriculture. The specimen was sent to federal identifiers and subsequently confirmed as EAB on June 11.
Also on June 11, the Lake Geneva city forester, working with DNR forest health personnel, submitted photographs of an unhealthy tree located in the downtown area of Lake Geneva. DATCP staff confirmed that the tree is infested with EAB.
The tree-killing emerald ash borer has been discovered so far in 12 Wisconsin counties, including the recent addition of Walworth County. The other counties are Brown, Crawford, Kenosha, La Crosse, Milwaukee, Ozaukee, Racine, Rock Vernon, Walworth, Washington and Waukesha.
Neighboring counties may be added to the quarantine pending further review. EAB quarantines currently exist in Brown, Crawford, Fond du Lac, La Crosse, Milwaukee, Ozaukee, Racine, Sheboygan and Vernon, counties.
The EAB quarantine affects some businesses that use certain ash products. For the vast majority of people the quarantine means that hardwood firewood, regardless of tree species, cannot leave the quarantine area.
Residents Rock, Kenosha, Walworth and Waukesha counties, and any other known infested county, should contact a certified arborist or other tree care professional for help in determining if their ash tree is at risk and a course of action to undertake if warranted.
Information about EAB can be found on the web at www.emeraldashborer.wi.gov.
Source: Wisconsin DATCP