【摘要】 红腹叶蜂是近年来在宁夏固原地区发生的以幼虫取食落叶松当年嫩叶的食叶害虫。该虫1年发生1代。6月中下旬老熟幼虫开始下树在落叶层下结茧越冬,入土深度3～5cm。第2年5月上旬开始化蛹,6月上中旬为化蛹盛期,6月上旬为羽化初期,中旬为羽化盛期,防治实验结果表明,6月上中旬,以林丹烟剂熏杀,幼虫死亡率可达90%以上,见效快,费用低,防治效果好。更多还原

【Abstract】 Pristiphora erichsonii havtig,a pest with its larva living on tender leaves of larix and outbrecking recent years in Guyuan of Ningxia province,has one generation a year,with its matured larva to come down into litter and soil in June 3 to 5 cm deep for cocoons and wintering.Pupation starts in the first ten days of the next may, with a peak pupation in the middle of June, an initial wing-spreading in the first ten days of June and peak in the middle of June.The test shows that smoke treatment of Lindane performs well enough to kill 90 percent of pristiphora erichsonii havtig larvae.更多还原