New Derivatives of acids or Esters or propyl - N - (2) - pirinidin il tionofosforicos of insecticidal Properties fitoacaricidas and nematocides compositions and pharmacological action of insecticide freeS fitoacaricidas and nematocides on the basis of the same and a method for producing Said compounds

摘要

O-alkyl-O-n-propyl-O-pyrimidin(2)yl-thiono-phosphoric acid esters of the formula IN WHICH R is methyl or ethyl, which possess insecticidal, acaricidal and nematocidal properties.