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Mitch writes

Will Cynoff EC leave a noticeable film on my dark siding?

I notice that several of the cypermethrin based products say they leave a powdery film on dark surfaces. I want to spray my dark gray siding where I have a massive stink bug infestation. Does this product leave a similar film?

Answer:

Cynoff EC will not leave a white powdery residue on dark siding. The products that leave that white powdery residues are in fact wettable powders and all have the letters WP in the product name (Cynoff WP, Demon WP).

Answer last updated on: 09/23/2010

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Cynoff EC

Cynoff EC

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