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David writes,

How long will Onslaught work outside?

I will be using this product to spray up into trees and bushes for the control and extermination of gnats and mosquitoes outside my home. How long will the residue remain effective used in this manner exposed to the elements? Obviously when it rains, it won't last as long. Thanks


You can expect Onslaught to last for about 4 weeks outdoors for mosquito and gnat control.

Answer last updated on: 03/28/2011

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