Pennsylvania DEP Schedules Black Fly Suppression Event on Youghiogheny River

JUL 23 2019

The Pennsylvania Department of Environmental Protection has scheduled an aerial black fly suppression operation for Monday morning, July 29, through Tuesday, July 30, on the Loyalhanna Creek, Conemaugh River, Kiskiminetas River and Youghiogheny River. This operation will begin Thursday morning. Flights will be conducted in Armstrong, Cambria, Fayette, Indiana and Westmoreland Counties. The helicopter conducting the treatment will be a Bell OH58 with the tail numbers N654HA and is painted gray with blue and red striping.

Helicopter Applicators Inc. will be dispersing Vectobac 12AS, which is a Bti product manufactured by Valent Biosciences. Bti is short for Bacillus thuringiensis var. israelensis, which is a bacterial larvicide, not a chemical, and is the only product used in Pennsylvania's waterways for black fly suppression. Vectobac 12AS is a thick brown liquid resembling chocolate milk. The helicopter will fly low near tree top level and release the Vectobac 12AS at various predetermined positions on each stream. Attached is a copy of the Vectobac label and an SDS sheet in case you would need information on the product.

If you have any questions regarding this operation or the program in general, please contact Katie Staudenmeyer of the PA Department of Environmental Protection's Waterways and Wetlands Program, at 412-442-4310.


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