竹金黄镰翅野螟生物学特性研究

采用室内饲养和林间调查相结合的办法，研究了竹子重要食叶害虫竹金黄镰翅野螟Circobotys aurealis的生物学特性。该虫在浙江省每年发生1代，以预蛹越冬，翌年4月中旬到6月上旬化蛹，4月底至7月上旬出现成虫，5月上旬开始产卵，幼虫29～38 d后老熟，越冬期长达6～7个月。本文详细报道了各龄幼虫的体长、头宽和取食竹叶量，以及成虫夜间活动及扑灯时间，分析了该虫近年来危害趋重的原因，提出了捡拾当年新竹的笋箨和黑光灯诱杀成虫等防治方法。

Biological characteristics of Circobotys aurealis(Leech)(Lepidoptera:Pyralidae),a bamboo pest in China

The biological characteristics of Circobotys aurealis, a serious bamboo pest in China, was studied with laboratory observation and field investigation. The moth has one generation per year in Zhejiang province and overwinters as fully-developed larva (prepupa). The moth pupated from mid-April to the early June next, and adults emerge between the last ten days of April and the beginning of July, and began to oviposite in the first ten days of May. The larva has six instars and needs 29-38 days to develop maturely, and the overwintering stage lasts six to seven months. The life history, body length, head width, and food digestion of bamboo leaves in each larval instar and the behavior of adults at night were described in detail. The reasons for breakout of the pest were analyzed, and the control methods including light trapping and removal of damaged shoots in shooting season of bamboo were put forward.