Phrases with «piperonyl»

The net combines pyrethroids with a chemical called piperonyl butoxide (PBO). (sciencemag.org)
Pyrethrins are found with enhancers, typically a product called piperonyl butoxide, to reduce the chance of resistance by the flea. (safarivet.com)
The active ingredients include piperonyl butoxide and pyrethrin, which (as noted above) are somewhat controversial. (wileypup.com)
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