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龟纹瓢虫Propylaea japonica(Thunbery)是蚜虫的常见天敌,可捕食各种植物上的多种蚜虫、据资料报导,该虫无滞育现象,对温、温度适应范围较宽,特别是在7、8月高温期是控制棉花伏蚜及苹果黄蚜的有力天敌。国内外对该虫与温度的关系研究甚少,为了发挥龟纹瓢虫控制棉花伏蚜的威力,作者1981年研究了温度对该虫生长发育的关系,现将结果报导如下:
Propylaea japonica (Thunbery) is a common natural enemies of aphids, can prey on a variety of plant aphids, according to the data reported that the larvae no diapause, temperature, temperature to adapt to a wide range, especially in the 7 August high temperature period is a powerful natural enemies to control cotton aphid and apple aphid. At home and abroad, there is little research on the relationship between the temperature and the insects. In order to give full play to the power of the ladybug to control the cotton aphid, the author studied the relationship between the temperature and the growth and development of the worm in 1981. The results are reported as follows: