【摘要】 对背沟彩丽金龟的生物学特性和防治研究结果表明:1 a发生1代,成虫从2月底开始出土,活动期长达2个多月,危害盛期正是板栗抽芽展叶关键期;轻壤发生最重,中壤次之,沙壤最轻;在不同地被物中,以杂草的虫口密度最大,间种农作物次之,杂灌的最小;15%~20%土壤含水量最适宜该虫生长发育。在几种农药中,以10%吡虫啉可湿性粉剂3 000倍液和25%虫满腈悬浮剂1 000倍液对成虫的防效较好,印楝素和鱼藤精对成虫有较强的驱避和拒食作用。更多还原

【Abstract】 The biologic characteristics and control of Mimela specularis in chestnut plantations were studied.The results showed that there was one generation per year for M.specularis.The adult emerged from the late February to the middle April.It fed on tender leaf and bud,and madeserious damage on the growth of chestnut.The damege of the population density was:light loam>medium loam>sandy loam;and weeds>crops>shrubs,among different intercropping systems.The optimum soil water content that the scarab developed was 15%～20%.3 000 dilution 10% Imidacloprid or 1 000 dilution 25% Chlorfenapyr had good efficacies in terms of killing the adult,and Margosan-O or Rotenone had strong repellent and antifeedant effects against the adult.更多还原