本试验试图寻找防治棉铃虫效果好、成本较低的复配制剂应用于生产实践,在通过大量室内单药则定的基础上,进行了反复的室内与田间筛选,得出了氯乐磷与赛乐磷乳油对棉铃虫具有良好的防治作用。 为了进一步验证两种制剂在田间的防治效果,分别在三个发生不同程度的棉田,按正式试验程序与20％灭多威乳油和40％甲胺磷乳油,40％氧化乐果进行了对比试验,并将结果进行整理。 In this experiment, we tried to find out the effective and low-cost compound preparation for controlling bollworm and applied it to the production practice. Based on a large amount of indoor single drug, we conducted repeated indoor and field screening, Cypriot phosphorus cream has a good control effect on cotton bollworm. In order to further verify the control effect of the two preparations in the field, the comparative tests were conducted in three cotton fields with different degrees of tolerance according to the formal test procedure with 20% methomyl EC and 40% methamidophos 40% omethoate , And organize the results.