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2013 News

Pennsylvania DEP Officials to Conduct Black Fly Spraying July 24 in Delaware River Basin

July 23, 2013

Helicopter to Appear Between Upper Makefield, Pa and Slateford, Pa

On Wednesday, July 24, 2013, the Pennsylvania Department of Environmental Protection (DEP) will conduct aerial black fly suppression operations along the Delaware River in Bucks and Northampton Counties (as well as Mercer, Hunterdon, and Warren Counties in New Jersey).

Operations along the Delaware River will begin at approximately 9:00 a.m. at the Thorpe Farm property in Upper Makefield Township. Work should progress up the Delaware River from Yardley (Trenton, NJ) to Slateford (Columbia, NJ).

Depending on sampling conducted on Tuesday, some portions of the Lehigh River between Allentown and Easton may also be treated.

Typical operations involve the application of Vectobac 12AS (a brown, viscous, liquid material that smells like fish oil) from a helicopter. The helicopter will apply the Vectobac perpendicular to the river flow in designated areas by flying back and forth across the river and discharging the material from a boom arm. The material is then carried downriver. The active ingredient in Vectobac is Bacillus thuringiensis israelensis (B.t.i.), a naturally occurring soil bacterium.

AgAir, LLC of Thomasville, PA is the scheduled contractor and will be using a Bell Jet Ranger with tail number N16979. For additional information about black fly suppression, please visit the website http://www.depweb.state.pa.us/blackfly.