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筛阿鳃金龟是龙眼、荔枝的主要害虫,在广西南宁每年发生1代,以成虫越冬。翌年3月下旬或4月上旬成虫出土取食为害,直至5月中下旬成虫开始交配产卵,8月下旬或9月上旬为幼虫化蛹盛期,9月中下旬为成虫羽化盛期,随之出土取食为害,11月下旬入蛰。其主要以成虫为害植株的新梢嫩叶,而且每年出现两次为害高峰期,分别在当年9~10月和翌年4~5月。用40%氧乐果或50%甲胺磷乳油800~1000倍稀释液喷雾,防治效果显著。
A gill beetle is a longan, litchi main pests, occurring in Nanning, Guangxi a generation each year, overwinter adult worms. Adults in late March or early April of the following year were unearthed for feeding until the mid-to-late May adults started mating and laying eggs. In late August or early September, larvae were born in the mid-to late September, The unearthed feeding harmful, in late November into sting. The main shoots of adult shoots of young shoots, and twice a year peak damage occurred, respectively, in September and October of the following year and April to May the following year. With 40% omethoate or 50% methamidophos 800 to 1000 times the dilution of spray, control effect is significant.