Helicopters will be spraying BTI in the Boston area to control mosquito populations.
The sprayings will occur in mid-April and again after flooding summer rains, according to a notice from the East Middlesex and Suffolk County Mosquito Control Projects.
The sprayings will be conducted over specific large wetlands in: Bedford, Belmont, Burlington, Concord, Framingham, Hyde Park, Lexington, Maynard, Medford, Melrose, Newton, North Reading, Reading, Sudbury, Wakefield, Waltham, Wayland, Wellesley, West Roxbury, Weston and Winchester.
The trade name of the BTI formulation is Vectobac G (EPA Reg. #73049-10), according to the notice.
The EPA has a general BTI fact sheet here.
For more information, residents are asked to contact David Henley at 781-899-5730.