Method and compositions for controlling insects, and members of the order Acarina, which compositions contain, as active ingredients 2-(1-indolinyl-methyl)-imidazolines or salts thereof

Abstract

The use in pest control of 2-(1-indolinylmethyl)-imidazolines of the formula I ##STR1## or salts thereof, wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.12 -alkyl, R.sub.2 and R.sub.2a independently of one another are each hydrogen or C.sub.1 -C.sub.4 -alkyl, or together are C.sub.2 -C.sub.4 -alkylene, and R.sub.3 and R.sub.4 independently of one another are each hydrogen, halogen or C.sub.1 -C.sub.3 -alkoxy, or C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by halogen. There are also described the compounds of the formula Ia ##STR2## wherein R.sub.1 ' is hydrogen or C.sub.1 -C.sub.12 -alkyl, R.sub.2 ' and R.sub.2a ' independently of one another are each hydrogen or C.sub.1 -C.sub.4 -alkyl, or together are C.sub.2 -C.sub.4 -alkylene, R.sub.3 ' is hydrogen, halogen or C.sub.1 -C.sub.3 -alkoxy, or C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by halogen, and R.sub.4 ' is halogen or C.sub.1 -C.sub.3 -alkoxy, or C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by halogen, or R.sub.3 ' is halogen or C.sub.1 -C.sub.3 -alkoxy, or C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by halogen, and R.sub.4 ' is hydrogen, halogen or C.sub.1 -C.sub.3 -alkoxy, or C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by halogen, and processes for producing these compounds.

Dependencies are inferred from the claim text.