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Susan from Belfast, Me writes

How long does it take for BTI Mosquito Dunks to work?

I see mosquito larvae in my backyard pond (small).

Answer:

BTI Mosquito Dunks will start working as soon as you place them in the water areas where mosquito larva can be found. It will slowly start breaking down and creating a layer on the water that should prevent the mosquito larva floating there from becoming adult mosquitoes. 

Answer last updated on: 06/12/2017

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