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Mike writes,

I've heard products like these break down with high UV exposure. How long does this take?

My house and deck get full sun, and I'm spraying weekly with this product due to the stink bug problem. Is this over kill?


The biggest factor in pesticides not lasting a long time is definitely UV light.  Each product will have different life spans depending on whether it is a powder like Demon WP, or liquid like our popular Talstar P product. Demon WP and other wettable powders should give a good 30 day residual even in direct sunlight. There are some liquid that will last 60 to 90 days, but they do not have the punch that Demon WP has. Treating weekly might be a little much, but since stink bugs are so bad right now we would recommend treating every 2 to 3 weeks at least since the numbers of stink bugs are so high right now.

Answer last updated on: 09/24/2010

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