Emerald Ash Borer Confirmed In Two Locations In Walworth County

Emerald Ash Borer Confirmed In Two Locations In Walworth County

Tree-killing pest has been discovered in 10 Wisconsin counties.

An adult emerald ash borer beetle was 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 Monday, June 11.

Emerald Ash Borer Confirmed In Two Locations In Walworth County

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 10 Wisconsin counties, including the recent addition of Walworth County. The other counties are Brown, Crawford, Kenosha, La Crosse, Milwaukee, Ozaukee, Racine, Vernon, and Washington.

Walworth County will be quarantined soon. Neighboring counties may be added to the quarantine pending further review. EAB quarantines currently exist in Brown, Crawford, Fond du Lac, Kenosha, La Crosse, Milwaukee, Ozaukee, Racine, Sheboygan, Vernon, Washington and Waukesha 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 of Lake Geneva and Walworth County in general (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

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