三化螟为单食性害虫,只为害水稻,以幼虫钻蛀水稻株取食叶鞘细胞、稻苞造成枯心苗、死孕穗和白穗多为害状,严重影响水稻生产。近年推出多种防治三化螟的药剂,都有较好的防治效果,但如何合理用药、降低成本、保护环境,是农民用药的关键。 Borer borer is a simple food pest, only for rice, with larvae drowning rice plants feeding leaf sheath cells, rice buds cause dead heart seedlings, dead booting and white spikes and more harmful to the serious impact on rice production. In recent years, the introduction of a variety of prevention and treatment of Borer died of the agents, have better control effect, but how to rationalize medication, reduce costs and protect the environment, is the key to farmers medication.