PEST CONTROLS CONTAINING SUBSTITUTED BENZAZOLES AND THEIR USE.

摘要

2-Substituted benzazoles of the formula IMAGE in which R represents optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, optionally substituted aryl or optionally substituted aralkyl, R1, R2, R3 and R4 independently of one another represent hydrogen, halogen, optionally halogen-substituted alkyl, optionally halogen-substituted alkoxy, nitro, cyano, alkylcarbonyl or alkoxycarbonyl, or two radicals in combination form a benzo radical, X and Y independently of one another represent oxygen or sulphur and n represents zero or 1, synergize conventional pesticides. Those benzazoles in which R is -CH2-C= 3BOND CH, R1, R2, R3 and R4 represent independently of one another hydrogen or halogen (preferably chlorine), Y represents oxygen and n represents 1, are new and exhibit particularly high synergistic activity.