Mosquito Dunks, along with Briquettes are the only sustained-release B.T.I. mosquito larvicides available. The floating Briquettes formulation releases effective levels of B.T.I. at the waters surface for a period of 30 days or more. Mosquito Dunks remain in the water column where mosquito larvae feed, to give you continuous kill.
Mosquito Dunks release a constant, low dose of B.T.I. so early instars may survive temporarily. However, continuous ingestion of the active ingredient produces a chronic infection, which kills the larvae so you will not observe pupae and the adult mosquitoes will not emerge. Made with natural B.T.I., Mosquito Dunks represent a major breakthrough for people and the environment when compared with the traditional toxic chemical approach to mosquito control.
B.T.I. is a bacterium that controls mosquitoes and black flies in their larval filter feeding stage of development. The larvae die after consuming the bacteria that causes a disease specific to them but is harmless to all other forms of wildlife. Approved for use in Canada.Application:
Once a month float a Dunk in the Water Garden and anywhere water accumulates around your home. Each Dunk will effectively treat up to 100 square feet of surface water regardless of depth. Dunks may be broken to treat small areas.
Buy 4 or more and save, purchase 12 or more for even greater savings.