ANNAPOLIS, MD – The Maryland Department of Agriculture—in partnership with the Department of Natural Resources—will treat a targeted area of the Potomac River in Washington County to control black fly populations in the area. Treatment is scheduled for Tuesday, August 20, starting at 8:30 a.m.

The department will apply a Bacillus thuringiensis israelensis (Bti)-based larvicide via helicopter (Bell OH58, gray with blue and red paint scheme. Tail number is N659HA). Bti is a naturally occurring bacteria found in soils worldwide. It is a bacterial insecticide, not a chemical, and is only harmful to a very limited variety of organisms including midge, black fly, and mosquito larvae and a few other aquatic Dipteran (flies) insects.

More on Marylandian

• Brindle Pet Supplies Now Carries Badlands Ranch Dog Food in Canada
• $10 Million Allocated to Establish Crypto Treasury Focused on High Value Ethereum (ETH) & Bitcoin (BTC) as Long-Term Holdings for Cybersecurity Leader
• Cummings Graduate Institute for Behavioral Health Studies Celebrates New DBH Graduates
• $100 to $200 Million Equity Agreement with Top Digital Advisor Bitwise to Power Major Digital Asset Initiative for Bitcoin and Solana: OFA Group
• InSpired Brings World Premiere to the Weinberg Center This October

The treatment may cause temporary discoloration of the water, but it is completely nontoxic and is not harmful to humans, fish, crabs or other aquatic invertebrates. More Information​.

For more information on the department's black fly program, visit our website.

# # #

Follow Maryland Department of Agriculture on Twitter @MdAgDept

---

Show All News | Report Violation