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Black Fly Aerial Spray Program Begins On April 9

The Department of Environmental Protection will begin its annual black fly control aerial spray program on April 9, starting with nearly 220 stream miles in several mid-state counties.
            The spraying will take place on the Juniata River in Dauphin, Juniata, Mifflin and Perry counties; Conewago Creek in York County; Conodoguinet Creek in Cumberland County; and Penns Creek in Snyder and Union counties.
            DEP uses BTI, a naturally occurring bacterium, to target the larval stage of four specific human pest black fly species. This bacterium degrades quickly in the environment and does not harm the aquatic ecosystem, fish, birds or other insects.
            This effort greatly reduces the black fly population, making it easier for Pennsylvanians and visitors to enjoy outdoor activities during warmer months.
            Through August, 44 rivers and streams spanning more than 1,500 miles in 33 counties will be monitored and treated as needed. Spraying activities will be performed by helicopter and the frequency will depend upon black fly surveillance results and weather conditions.
            Treatments cannot occur during periods of heavy rain or when water levels are high. Fast-moving water can carry away the spray product too quickly, making the treatment ineffective.
            DEP will notify county and local emergency management officials prior to any spraying activity to make them aware that helicopters seen flying over creeks, streams and rivers are working on behalf of the state’s black fly program. 
            Anyone with concerns over the sight of a helicopter is encouraged to call their county emergency management office to verify that a black fly treatment is taking place in their area on that day.
            A list of counties and waterways to be sprayed is available online.
            For more information, visit DEP's Black Fly Suppression Program webpage or call 717-346-8238.


4/9/2012

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