1982年6月初,我们选用内吸性强、残效期较长的25%杀虫脒400倍液为主杀药,混配三氯杀螨醇1000倍防治柑桔红蜘蛛,一次取得显著效果。喷药后几天,红蜘蛛成、若虫死亡过半,半月后大部分死亡,此后持续下降到几乎绝迹,直到9月份以后才发现柑园的红蜘蛛繁殖回升。1983年5月中旬,我们继续应用杀虫脒混三氯 At the beginning of June 1982, we chose 400% Chlordimeform with a strong internal absorption and long-term residual effect as the main pesticide, and doubly mixed with dicofol 1000 times to prevent and cure citrus red spider, achieving remarkable results once. A few days after spraying, the spider mites became nymphs, died more than half of them, most of them died after a half month, and then dropped to almost extinction until after September, the spider mites of citrus orchard were not found to reproduce. In mid-May 1983, we continued to use chlordimeform mixed with trichloride