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圆柏大痣小蜂分布于青海、甘肃省,危害圆柏属种子,在青海省危害面积达22万亩,种子平均被害率为23.71％,严重影响了圆柏的育苗和更新。我们试图弄清它的生物生态学习性,为防治提供科学依据,于1986—1987年,在这方面做了观察和研究。一、虫种及其形态特征(图1) 圆柏大痣小蜂为长尾小蜂科(Callimomidae),大痣小蜂属(Megastigmus)内一新
Jumbo pollinators distributed in Qinghai and Gansu Provinces, harming Juniperus seeds, harming the area of 220000 acres in Qinghai Province, the average seed damage rate of 23.71%, severely affected the Sabina nursery and renewal. We tried to find out its bioecological habits and provided a scientific basis for prevention and treatment. From 1986 to 1987, we made observations and studies in this area. First, the species of insects and their morphological characteristics (Figure 1) Sabina major nectar wasps of the long-tailed bee family (Callimomidae), large nematodes (Megastigmus) within a new