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Dana from Silver Spring, Maryland writes,

I would like to know what chemical (professional insecticides) can be use together?

I am PCO and I am looking for an understanding of chemical compounds. For example I know that Bifenthrin can be mixed with Imidacloprid, and as a whole, I would like to know what class of insecticides can I use with each other. For example, I now know that I can join a pyrethroid and a neo-nicotinoid. So, I wanted to ask, if you would, you to give me the major chemical families and which ones I can mix and which classes do not mix well. I am always trying to get a leg up.


We do apologize but while some products do contain 2 different active ingredients able to be used together in that product, the same 2 active ingredients in 2 separate products would not be recommended to be mixed together to make your own combination.  Products must be used according to the product labels and mixing too much can actually have a negative effect of making an area highly repellent or nulling some effectives of one, such as the non repellent factor of Imidacloprid.  It is the general rule that insecticides should not be mixed together at all unless directed to do so on the product label.

Answer last updated on: 03/30/2015

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