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利用赤眼蜂防治松毛虫,在我省已蓬勃开展。为了进一步发挥赤眼蜂在消灭松毛虫及其它害虫上的作用,我们对松毛虫赤眼蜂(Trichogramma dendrolimtMatsumura)的有关生物学特性及柞蚕卵的贮藏利用进行了一些试验。现将部分结果整理于后。 一、寄主柞蚕卵贮藏利用试验 (一)柞蚕茧的冷藏 柞蚕卵是繁殖赤眼蜂的优良寄主,但蚕卵冷藏时间一长就会变质和干瘪,严重地影响到赤眼蜂的寄生效能。为了在繁殖赤眼蜂生产期间始终提供新鲜的寄
The use of trichogramma control pine caterpillars, has been vigorously carried out in our province. In order to further exert the role of Trichogramma on eliminating pine caterpillars and other pests, we conducted some experiments on the biological characteristics of Trichogramma dendrolimus Matsumura and the storage and utilization of tussah eggs. Part of the results will now be arranged in the post. First, the host tussah eggs storage and utilization of the test (a) Tussah cocoon chilled tussah egg is an excellent host breeding Trichogramma, but silkworm eggs will deteriorate and shriveled for a long time, seriously affecting the parasitism of Trichogramma. In order to always provide fresh send during the breeding Trichogramma production