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本文报道繁殖和利用管氏肿腿蜂防治天牛中的几个关键技术问题的研究结果,试验在北京和山东平邑进行。用11种害虫作寄主繁蜂,以玉米螟为最合适。玉米螟可以用人工饲料大量饲养,用控制温湿度和光照时间,人工诱导进入滞育的玉米螟作寄主,寄生率达69.1％以上,繁蜂所需时间30天左右,每头幼虫繁蜂数为35.7头。在5、10、15℃中贮存肿腿蜂,以5℃中的死亡率为最低,贮存1、4、6个月死亡率分别为8.8％、41.2％、67.6％。在10℃中贮存1～6个月不影响寄生率,但出蜂数和雌性比随贮存时间的延长而下降。长期连续用玉米螟繁蜂,肿腿蜂生活力减退,用红缘天牛复壮,取得良好结果。1983～1984年在100余亩面积上释放肿腿蜂防治咖啡虎天牛和菊花天牛,寄生率均达70％以上。
This paper reports the results of the research on several key technical problems in breeding and using the Trichogramma rickettsii in the prevention and treatment of the genus Tenchinia. The experiments were conducted in Beijing and Pingyi, Shandong Province. With 11 kinds of pests for the host bumble bee, the most suitable corn borer. Corn borer can be fed in large quantities with artificial feed, with the control of temperature, humidity and light time, artificial induction into diapause corn borer as the host, the parasitism rate of 69.1%, the time required for the busy bee 30 days, the number of bee per larvae 35.7 head. At 5, 10 and 15 ℃, the swollen beetles were stored at the lowest mortality at 5 ℃. The mortality rates at 1,4 and 6 months after storage were 8.8%, 41.2% and 67.6%, respectively. Storing at 10 ° C for 1 to 6 months did not affect the parasitism rate, but the number of bees and females decreased with prolongation of storage time. Long-term continuous use of corn borer bumble bees, swollen legs bee subdued viability, with red edge Tian Tian rejuvenation, and achieved good results. 1983 ~ 1984 in more than 100 acres of area of the release of swollen beetle control coffee tiger and chrysanthemum days, the parasitic rate reached more than 70%.