Black Fly Suppression Program
The Black fly spraying program is a joint effort of Venango County and Pennsylvania DEP. Field personnel of the DEP monitor the black fly populations along the major waterways in the county. These include French Creek, Sandy Creek, Oil Creek, Sugar Creek and of course the Allegheny River. When the populations reach a predetermined level, (nuisance level) the DEP orders spraying of the affected stream.
Pennsylvania has contracts with aerial applicators that will then spray the designated waterways. The contractors use a product called Bacillus Thuringiensis Israeliensis (BTI). It is a naturally occurring bacteria found in aquatic soils around the world. It is a safe and effective alternative to the use of chemical insecticides. Spray notification is unavoidably short. With the variables of weather and stream conditions to contend with, a two day notice of spraying is all that can be managed.
Click here for more information about DEP's Black Fly Suppression program.