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经过几年来的调查,不少单位认为,天敌因子是影响稻瘿蚊数量变动的主要因素之一。寄生蜂是稻瘿蚊的主要天敌,有些世代寄生率高达90％。其中黄柄黑蜂对稻瘿蚊的发生起着重要的抑制作用。进一步研究黄柄黑蜂生物学及其与稻瘿蚊的相互关系,进一步在综合防治中发挥天敌因子的作用是当前研究的一个课题。现将我们两年来调查、实验情况,整理于下。
After several years of investigation, many units believe that the natural enemy factor is one of the main factors that affect the quantity of rice gall midge. Parasitic wasps are the main natural enemies of rice gall midge, and some generations have parasitics as high as 90%. Among them, the yellow-billed black bees played an important inhibitory effect on the occurrence of rice gall midge. Further research on the biology of C. elegans and its relationship with M. gondii and the role of natural enemy agents in integrated prevention and treatment are a topic of current research. Now we two years of investigation, experimental conditions, sorted in the next.