The East Middlesex Mosquito Control Project will be conducting a helicopter application of the biological larvicide, Bti, to control mosquito larvae over large wetland areas of Medford. Wetlands currently being evaluated for this application are located in the areas of Wrights Pond, Silver Mine Hill, Bellevue Pond tributary and north of Medford High School. The application will take place between May 3 and May 7. The Bti will be applied in a granular formulation by a helicopter flying low directly over the wetlands. Residents do not need to take any special precautions for this application.
The material to be applied Bti (Bacillus thuringiensis var. israelensis) is a natural bacterium found in soil. The EPA classifies Bti as a relatively non-toxic pesticide. Bti is considered a target selective and environmentally compatible pesticide that affects mosquito larvae and a few closely related aquatic insects in the fly family. Once applied Bti stays suspended in water for 24 to 48 hours and then biodegrades as it settles to the bottom. The product name of the Bti is VectoBac GS (EPA Reg. #73049-10).
For further information contact the East Middlesex Mosquito Control Project at 781-899-5730.
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Mosquito Control Activities Planned for May 3-7by Jackie Piques |
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