N-2-(hetero)arylethylcarboxamide derivative, and pest-controlling agent comprising the same

摘要

An N-2-(hetero)arylethylcarboxamide derivative represented by the formula (I)
wherein R 1 and R 2 are each independently a hydrogen atom etc., R 3 and R 4 are each independently a hydrogen atom etc., each Y is independently a halogen atom; a (C 1 -C 6 )alkyl group optionally substituted by halogen atom(s) etc., n is an integer of 1 to 5, A is a specific substituted cyclic group, E is C-H; C-Y (Y is as defined above); or a nitrogen atom, a salt thereof, and a pest controlling agent containing the derivative or salt as an active ingredient show superior performance as compared to the prior art technique, and are useful particularly as plant disease controlling agents or nematocides having a broad control spectrum at a low dose.