Provided by the Bucks County Department of Health:
An aerial black fly (gnat) suppression operation is scheduled for Monday, August 18, and Tuesday, August 19, on the Delaware River and Neshaminy Creek in Bucks County.
The operations will begin each day at 7:30 a.m. as weather permits and will include flights in Bucks, Montgomery, Chester, Berks, Lehigh, Northampton and Schuylkill counties.
The helicopter used for this operation will be a Bell Jet Ranger OH-58 with tail number N653HA and is painted white with blue and red stripes.
Spray operations will specifically take place within the following section of the Delaware River between Slateford and Trenton.
The Neshaminy Creek as needed between Playwicki Park in Middletown Township and the Route 611 Bridge in Doylestown.
Helicopter Applicators Inc. will be dispersing Vectobac 12AS, which is a Bti product manufactured by Valent Biosciences. Bti is short for Bacillus thuringiensis var. israilensis, 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 brown liquid with a fish oil odor.
The helicopter will fly low near tree top level and will release the Vectobac at various predetermined positions on each stream.
Vectobac is not toxic to fish or other aquatic organisms.
Below is a copy of the Vectobac label and safety data sheet in case you would need information on the product.
Please note that this work does NOT involve a helicopter spraying over the entire county and applications will only occur on the specific waterways listed in this notice.
Any questions about this operation may be directed to me and more information regarding the PA Black Fly Suppression Program can be found here.
Pesticide Data Sheets:
Vectobac 12as label
Vectobac 12as SDS
For more information on the program please visit the Black Fly Program website: Black Fly
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