Emerald Ash Borer in Wisconsin

Photo Credit: Photo Credit: Photo Credit: Debbie Miller, USDA Forest Service, Bugwood.org

20131209

Emerald Ash Borer in Wisconsin

By pliesch

The invasive emerald ash borer (Agrilus planipennis) was discovered in North America in Michigan in June of 2002. This insect is native to East Asia […]

Forward Motion: Catching the Bug

20180927

Forward Motion: Catching the Bug

By pliesch

Professor Chris Williamson describes how the UW-Madison Entomology Department is fighting to protect Wisconsin’s ash trees in this video (2017).

Protecting Your Tree from the Emerald Ash Borer

20140712

Protecting Your Tree from the Emerald Ash Borer

UW-Entomologists demonstrate the use of a soil-drench treatment to protect an ash tree from the emerald ash borer:

Latest News:

(July 2024)
EAB was recently detected in Burnett County for the first time. Now, all 72 of Wisconsin’s counties have a confirmed presence of this destructive insect.

(April 2022)
All three UW-Madison Division of Extension EAB factsheets have been updated for 2022. The Homeowner Guide to Emerald Ash Borer Insecticide Treatments, Professional Guide to Emerald Ash Borer Insecticide Treatments, and Is My Ash Tree Worth Treating for Emerald Ash Borer? can be found on the News and Resources page.

(April 2021)
The Professional Guide to Emerald Ash Borer Insecticides has been updated for 2021.

(April 2019)
A new publication on the dangers posed by EAB infested trees was recently created by the Wisconsin DNR. This publication can be found on the News and Resources page.

(March 2018)
The state EAB quarantine has been extended over the entire state of Wisconsin. A full press release on the topic can be found here.

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Emerald Ash Borer in Wisconsin

Department of Entomology

Emerald Ash Borer in Wisconsin

Forward Motion: Catching the Bug

Protecting Your Tree from the Emerald Ash Borer