The Wisconsin DNR will begin gypsy moth spraying in mid-May and continue through early June. The exact date of spraying in the Madison area has yet to be determined, but residents can sign up to receive e-mail notification at http://gypsymoth.wi.gov/.

The DNR will use the certified organic and non-hazardous formula known as BT for the process. Although the substance can be washed off with soap and water, residents should stay inside during the hours of spraying (between 4:30 a.m. and 12:30 p.m.) to prevent exposure to its foul smell. read more »