Less than 1% pyrethrin?
By Philipatx on 08/25/2020
Meh... I found Vector Ban (with 10% pyrethrin) to be significantly more effective for my applications. (VB didn't come up on my search, I suppose, because of a review from one who don't know pyrethrin has a shelf life of a couple years.) This one is predominantly Piperonyl butoxide, the waxy man-made chemical which is only a synergist to pyrethrin, --not very effective as an insecticide on its own, yet toxic to e.g. fish.
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