Download LECTURE OUTLINE § Key Concepts o What is a pest o Pesticides

structure. They specifically contain
an a-cyano-3-phenoxybenzyl
alcohol, which increases insecticidal
activity about 10-fold. Moreover,
some commercially important Type
2 pyrethroids have altered the acid
portion of the molecule to include a
phenyl ring (e.g., fenvalerate and
fluvalinate). The stereoisomerism of
pyrethroids is important for their
toxic action, but a detailed