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赤眼蜂（Ｔｒｉｃｈｏｇｒａｍｍａｓｐｐ．）对不同寄主卵的嗜好性有差异，这是利用赤眼蜂防治害虫效果高低的关键因子。但是，环境条件及放蜂技术与赤眼蜂的治虫效果也密切相关。本文着重探讨了玉米螟防治中的蜂卵比、放蜂点的设置和放蜂次数３因子与放蜂效果的关系。现...
Trichogrammas (Trichogrammaspp.) On different host eggs preference differences, which is the use of Trichogramma pest control the key factor in the level of effect. However, environmental conditions and beekeeping techniques are also closely related to Trichogramma’s pest control effect. This article focuses on the corn borer prevention and control of the bee egg ratio, put the bee point setting and the number of bee times 3 factors and the relationship between beekeeping effect. Now ...