The state Department of Environmental Protection’s 2022 Black Fly Suppression Program is now underway. The program involves aerial and backpack spraying on roughly 1,700 stream miles in 36 counties through September 2022. Black flies interfere with the enjoyment of outdoor recreation and increased funding allows more miles of streams and river to be treated.
Prior to spraying activity, DEP notifies county and local emergency management officials. Helicopters can be seen flying over waterways and ground crews using backpack sprayers off bridges and wading in streams. Anyone concerned at the sight of a helicopter or ground personnel are encouraged to call county emergency management to verify that a black fly treatment is taking place. Click here to learn more.