METHOD FOR INTERRUPT MATING. A method of interrupting mating capable of bringing about a stable and effective mating interruption result is provided. Specifically provided is a mating disruption method comprising a step of beginning to apply a mating disruption agent after mating and spawning of the first generation images of an insect pest is substantially at the end of or before the second generation imagos of the insect pest. insect plague emerge, the mating interruption agent targeting at least one type of insect plague, which contains one or more types of acetates as a natural sexual pheromone, the insect plague being selected from the group consisting of tortricidae (Leafroller) , cereal caterpillar (Spodoptera) Sesiidae (Synanthedon), Rosy caterpillar (Pectinophora gossypiella: PBW), European grape moth (Lobelia botrana: EGVM), tomato moth (Keiferiaily copersicella: TPW), light brown apple moth (Epiphyes postvittana) ), Grapholita dimorpha Kornai (Grapholita dimorpha), apple leaf miner (Phyllonorycter ringoniella), apple leaf miner mate (Tuta absolute) and European billy goat moth (Cossus cossus), all of which are substantially free of acetate-derived alcohol as well as the eastern fruit moth (Grapholitha molesta: OFM) and omnivorous caterpillar (Platynota stultana), both of which contains 1.5% by weight or less of the acetate-derived alcohols； and the mating disrupting agent comprising acetates and acetate-derived alcohol or alcohols wherein each amount of alcohol or alcohols is 1.5 to 10% by weight with respect to each amount of acetates.MÉTODO PARA INTERROMPER ACASALAMENTO. É fornecido um método de interromper o acasalamento capaz de trazer um resultado de interrupção do acasalamento estável e eficaz. É especificamente fornecido um método de interrupção do acasalamento compreendendo uma etapa de começar a aplicar um agente de interrupção de acasalamento após o acasalamento e desova dos imagos da primeira geração de uma peste de inseto está substancialmente
