N-arylhydrazine derivatives for seed treatment

摘要

Method for the protection of seeds from soil pests comprising contacting the seeds before sowing and/or after pregermination with a compound of formula I: wherein W is chlorine or trifluoromethyl; X and Y are each independently chlorine or bromine; R¹ is alkyl, alkenyl, alkynyl, or cycloalkyl which may be substituted with 1 to 3 halogen atoms, or alkyl which is substituted by alkoxy; R² and R³ are alkyl or may be taken together to form cycloalkyl which may be unsubstituted or substituted by 1 to 3 halogen atoms; R⁴ is hydrogen or alkyl, or the enantiomers or salts thereof, in pesticidally effective amounts. Seed, comprising compounds of formula I.