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应用化学农药防治棉蚜已有较长的历史,且采用的药剂品种也比较多。致使棉蚜对有机磷类及拟除虫菊酯类杀虫剂产生了不同程度的抗性。为了解扬州市郊棉蚜的抗药性状况,作者于1986～1989年进行了棉蚜抗药性调查与监测。 材料与方法 (一)供试棉蚜 每年采集扬州市郊木槿树上的棉蚜,连同木槿枝叶一起放在白瓷盘中,待棉蚜自行爬出后,挑取健壮的无翅成蚜作为试虫。
Application of chemical pesticides to control cotton aphids have a long history, and the use of more varieties of drugs. Resulting in aphids of organic phosphorus and pyrethroid insecticides have varying degrees of resistance. In order to understand the resistance status of cotton aphid in the suburbs of Yangzhou, the author investigated and monitored the cotton aphid resistance in 1986 ~ 1989. MATERIALS AND METHODS A. Cotton aphids were collected from cotton aphids on the hibiscus trees in the suburbs of Yangzhou every year. The cotton aphids were placed in white porcelain dishes together with the branches and leaves of the hibiscus. After the cotton aphid climbed out, insect.