THE EXTRACTS OF PONCIRUS TRIFOLIATA RAFIN CONTROLLING FOR INSECTICIDAL ACTIVITY

摘要

An insecticidal composition comprising an extract of Poncirus trifoliata Rafin is provided to cause no harmful effects on mushroom and not to remain in the mushroom different from an organic synthesized controlling agent with limit use, thereby controlling harmful insects regardless of a treatment period and a treatment method and reducing economical damage caused by the harmful insects significantly. An insecticidal composition comprises an extract of Poncirus trifoliata Rafin having the insecticidal activity against at least one selected from the group consisting of L. mali, C. fuscipes, Bradysia sp.(Sciaridae) and Mycophila sp.(Cecidomyiidae).