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五倍子是我国重要的昆虫资源之一。主要含有单宁酸等成分,是重要的化工原料,又是传统的出口商品。 角倍是五倍子中的主要品种,致瘿蚜虫为角倍蚜Schlechtendalia chinensis Bell。角倍产量的高低,取决于角倍蚜越冬成活率的多少。在野外越冬受到气候的制约,天敌的为害,成活率仅为5％,而室内可高达40—50％。因此,室内繁育倍蚜安全越冬,是提高角倍产量的有效途径。从1980年11月至1981年3月,对角倍蚜的室内越冬进行初步观察,现整理如后。
Chinese nutgall is one of the important insect resources in our country. Mainly contains tannic acid and other ingredients, is an important chemical raw materials, but also the traditional export commodities. Angle times is the main variety gallnut, caused by aphids hornwort Schlechtendalia chinensis Bell. The output of the horn is dependent on the survival rate of the overwintering horn. Overwintering in the wild by climate constraints, natural enemy damage, survival rate of only 5%, while the indoor can be as high as 40-50%. Therefore, indoor breeding aphids safe winter, is an effective way to improve the angle times the yield. From November 1980 to March 1981, preliminary observations of the indoor winter wintering aphids were now sorted out.