Permethrin/cypermethrin 1970s: synthetic pyrethrins target voltage-gated Na+ channels in insect axons; knockdown effect; lower mammalian toxicity than organophosphates.
Permethrin/cypermethrin 1970s: synthetic pyrethrins target voltage-gated Na+ channels in insect axons; knockdown effect; lower mammalian toxicity than organophosphates.