Distribution AgreementDistribution Agreement • August 19th, 2009
Contract Type FiledAugust 19th, 2009More numerous are the OP pesticides containing sulfur in a P=S moiety. These phosphorothionates include important insecticides, such as parathion, methyl parathion, diazinon, and chlorpyrifos. Often used as soil insecticides, this type of OP pesticide possesses a marked increase in toxicity (Chambers and Levi 1992).