condensed heterocyclic compound, use of condensed heterocyclic compound or a salt thereof, method for using an agricultural and horticultural insecticide, method for controlling agricultural and horticultural insect pests, ectoparasite control agent, method for controlling ectoparasites and insecticide

摘要

condensed heterocyclic compound, use of condensed heterocyclic compound or a salt thereof, method for using an agricultural and horticultural insecticide, method for controlling agricultural and horticultural insect pests, ectoparasite control agent, method to control ectoparasites and insecticide. It is an object of the present invention to provide and develop new agricultural and horticultural incentives in view of the still immense damage caused by insect pests etc. and the emergence of insecticide-resistant insect pests that exist in crop yields in the fields of agriculture, horticulture and the like. A condensed heterocyclic compound represented by the general formula (i) is provided: wherein a1, a2 and a3 may be the same or different, and each represents a nitrogen atom or a group ch, r1 represents an alkyl group or similar, r2 represents a halo alkyl group or the like, r3 represents a hydrogen atom or the like, r4 represents a halo alkyl group or the like, r5 represents an alkyl group or the like, represents 0 or 2} or a salt thereof; an agricultural and horticultural insecticide comprising the compound or a salt thereof as an active ingredient; It is a method to use insecticide. 1/1