How much are you dilututing permethrin concentrate? (The ones that you buy at 36%) Have used the pre-mixed stuff before, but the concentrate undoubtedly much cheaper.
The one I bought was a 10% and after reading a few places they were saying a .5% is where you want it so I went with a 19 to 1 ratio. So far so good. And I tend to apply more often than they recommend
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