论文部分内容阅读
在浙江省杭州市郊和鄞县宝幢一带的马尾松林中,卫松益蛉1年发生2代,无冬眠现象。第1代发生于4月上旬至11月下旬,第2代发生于8月下旬至翌年6月下旬。其成虫和幼虫发生期正与日本松干蚧和马尾松干蚧的繁殖期相吻合;1头成虫日平均取食松干蚧茧蛹约9只,或卵276.6拉;1头幼虫全期取食松干蚧卵2837.1粒,也捕食松干蚧若虫和雌成虫等。这对松干蚧虫口的增殖起着明显的抑制作用。卫松益蛉成虫和幼虫可以用松干蚧卵,若虫、茧蛹和雌成虫;米蛾卵,以及多种蚜虫或代饲料1号饲养。
In the suburbs of Hangzhou, Zhejiang Province and Yinxian Baozhu massacre in the vicinity of Pinus sylvestris, Pinus sylvestris, 1 generation occurred 2 years, no hibernation. The first generation occurred in early April to late November, the second generation occurred in late August to late June the following year. The adults and larvae were coinciding with the reproductive phase of Japanese pine scale and Masson pine scale. One adult fed on average about 9 cocoon pupae or 276.6 pulls per day. One larvae fed 2837.1 eggs, Predators also eat predatory nymphs and female adults. This play a significant inhibitory effect on the proliferation of Lycosa semen. Adult and larvae of Pinus thunbergii can be bred with eggs, nymphs, cocoon pupae and female adults; moth eggs, as well as various aphids or feedstuffs No. 1.