2008 Suppression Program Spray Areas

For information on controlling gypsy moths on your property, please visit the Wisconsin Gypsy Moth portal [exit DNR].

To view the locations of spray activities for the year, click on the blue-colored county on the map below or on the county name on the left side of the map. This will open a page displaying links to all of the spray block maps for that county.

Spray activities will likely take place in mid-to-late May or early June, depending on the weather. Most blocks will be treated with one application of the bacterial insecticide Foray (bacillus thuringiensis kurstaki, also referred to as Btk). Some may be treated with one application of the viral insecticide Gypchek (gypsy moth nucleopolyhedrosis virus).

For More Information on Spray Schedules

Starting in May of each year, there are many ways to access frequent updates about spray activities and locations.

• Gypsy Moth Information Line - (800) 642-6684 (or 1-800-642-MOTH). In addition to hearing information on where and when spray activities will take place, callers will have an opportunity to have their spray-related questions answered by leaving a message. Messages are checked frequently and DNR staff will return your call as soon as possible. The line is available 24 hours a day 7 days a week.
• DNR Gypsy Moth Email - you may also send the DNR your questions in an email to DNRFRGypsymoth@wisconsin.gov. Emails are generally answered faster than messages left on the information line.

Spray information about DATCP’s Slow the Spread Program can be found at DATCP's Website [exit DNR].