我省应用农药1059(内吸磷)防治棉蚜多年的地区,群众近年经常反映药效减退,残效期缩短。如晋南棉区当初使用1059在1万倍以上仍有显著的效果,后来改用2千倍快速打药,每亩用量40-60斤控制效果一般能维持1-2周,但目前仅能维持4-5天,而且药效不高。有些地方使用浓度已提高至 In our province, application of pesticide 1059 (internal phosphorus uptake) to control cotton aphid for many years, the masses often reflect the decline in efficacy in recent years, residual shortened. Such as the Jinnan cotton area 1059 in the original use of 10,000 times more than there are still significant results, and later switched to 2 times the rapid drug fight, the amount of 40-60 kg per mu control effect can generally maintain 1-2 weeks, but can only be maintained 4-5 days, but not high efficacy. In some places the concentration has been increased to