MADISON, Wis. (WBAY) - Five more counties are added to the list having trees infected by the emerald ash borer. The latest confirmations are in Chippewa, Green Lake, Marinette, Waupaca and Waushara counties.
The invasive species is now confirmed in 46 of Wisconsin's 72 counties.
Two ash borers were caught in traps in Green Lake County: One in the town of Green Lake along St. Marie Road, just north of Highway 23, and another in Margaret Dodge Memorial Park near Markesan, about 8 miles away.
Three emerald ash borers were caught in Marinette County, on South Hilbert Road in the town of Goodman, on Ridge Street in Niagara, and along County Road RR in the town of Wagner.
An adult emerald ash borer was caught in Waupaca County's town of Farmington, along County Road Q south of Highway 10.
In Waushara County, another adult emerald ash borer was trapped along Beechnut Avenue just west of County Road V in Deerfield.
If your property is within 15 miles of an infestation, the Wisconsin Department of Agriculture, Trade and Consumer Protection suggests you consider taking preventive treatments depending on the age, size and number of trees on your property.
People who have ash trees (except mountain ash, which isn't a target of the emerald ash borer) and suspect their trees are infected can contact their county or community forestry service or a local tree service.
Signs of an emerald ash borer include "D"-shaped holes in the bark from adult ash borers chewing their way out and serpentine paths under the bark from the larvae eating their way around the tree. There may also be signs of woodpecker activity as the birds peck at the bark to eat the larvae.
Once the emerald ash borer is found in a county, that county is under quarantine. Firewood cannot be moved from a quarantined county to a non-quarantined county.
"These new finds fill in the map for the southern two-thirds of the state, and add to the checkerboard of quarantined counties in the north,” DATCP Plant Industry Bureau Director Brian Kuhn said.
The counties under quarantine are: Adams, Brown, Buffalo, Calumet, Chippewa, Columbia, Crawford, Dane, Dodge, Door, Douglas, Fond du Lac, Grant, Green, Iowa, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La Crosse, Lafayette, Manitowoc, Marinette, Marquette, Milwaukee, Monroe, Oneida, Outagamie, Ozaukee, Portage, Racine, Richland, Rock, Sauk, Sawyer, Sheboygan, Trempealeau, Vernon, Walworth, Washington, Waukesha, Waupaca, Waushara, Winnebago and Wood, as well as the states of Illinois, Indiana, (lower) Michigan, and Ohio.
The insect originates in China. It The was first discovered in the U.S. in Michigan in 2002. It's suspected the emerald ash borer came into the U.S. in packing material.