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Edward from Apache Junction Az. writes,

Can I mix 2-[methyl-2-(4-phenoxyphenoxy) ethoxy] Pyridine with Cypermethrin concentrate for later use?

I want to store and use these concentrates with a percentage of both for german cockroaches to get them and the eggs. The mix seems to work well, can they be mixed and stored together? I like the ml system of the NyGuard IGR container. I purchased almost all my pesticides from Do My Own Pest Control. I made a quick purchase of the Cypermethrin, I forgot to order a fast knock down on my last order. Just thought I'd check to be sure I don't get a bad reaction storing these chemical concentrates in the same container.


Products containing Cypermethrin and Pyridine are meant to be stored in their original containers only and should not be mixed together.  The dilution rates are different for the two chemicals as well so you would not get an accurate measurement using one bottle for both products.  We would not advise that you mix them and store them together.  Once the products are mixed with water, also be sure to use within 24 hours.

Answer last updated on: 07/25/2014

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