What is "pirimicarb"

n. A carbamate insecticide used to control aphids by inhibiting acetylcholinesterase activity.

Pirimicarb is a selective carbamate insecticide used to control aphids on vegetable, cereal and orchard crops by inhibiting acetylcholinesterase activity but does not affect useful predators such as ladybirds that eat them. It was originally developed by Imperial Chemical Industries Ltd., now Syngenta, in 1970.