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梨黄粉蚜Aphanostigma jakusuiense(Kishida)属同翅目,根瘤蚜科。分布于日本,朝鲜及我国江苏、浙江、安徽、河北、山东等省,近年来在梨树上也发生为害,损失很大,并有渐趋严重之势。我们于1976—1980年对该虫进行了研究,其结果如下。 一、生 活 史 据1977、1978两年室内饲养结果,梨黄粉蚜在四川金川地区一年发生6—10代。世代重叠。年生活史详见图1。各世代虫态历期长短与气温有关。第一代最长,第十代最短,各代虫态历期见表1。
Aphanostigma jakusuiense (Kishida) belongs to Homoptera, Phylloxera. Distributed in Japan, North Korea and China’s Jiangsu, Zhejiang, Anhui, Hebei, Shandong and other provinces, pests also occurred in recent years, harm, great loss, and gradually become more serious. We studied this pest in 1976-1980 and the results are as follows. First, the history of life According to the results of indoor breeding 1977,1978 two years, pear yellow aphid occurred in Jinchuan area in Sichuan 6-10 generation a year. Generational overlap. The life history is shown in Figure 1. The duration of each state of insect state is related to temperature. The longest in the first generation, the tenth generation is the shortest.