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September 16, 2021 - September 17, 2021
7:00 AM - 7:00 PM

The final aerial black fly suppression operation of the 2021 season is scheduled for today, September 16th and Friday, September 17 on the Main Stem of the Susquehanna River, the North Branch Susquehanna River, Juniata River and a few smaller creeks.  

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Black Fly Spraying

Thursday, September 16, 2021

The application will be conducted by DEP biologists using a back pack sprayer in stream and from bridges.