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一九七三年,我们在学习外地育蜂治虫经验的基础上,繁殖利用赤眼蜂在全县九个区共十三个单位作了防治棉铃虫的试验示范。实践证明,赤眼蜂防治棉铃虫效果显著,深受群众欢迎。一、试验经过利用赤眼蜂防治棉铃虫的试验,于八月二日至九月三日在三代和四代棉铃虫发生期间,先后在县农科所、县良种繁育场及姜灶、兴仁、幸福、余西、向东、五
In 1973, on the basis of learning from the experience of beekeeping pests in the field, we tried to breed and test trichoderms through the use of trichogramma in a total of thirteen units in nine districts of the county. Practice has proved that Trichogramma repellent effect of cotton bollworm significantly, welcomed by the masses. First, the test after the use of Trichogramma control bollworm test, August 2 to September 3 during the third and fourth generations of cotton bollworm occurred, has in the county agricultural branch, county seed breeding field and ginger stove, Xing Ren, happiness, I West, east, five