我们于1978—1980年做了灭幼脲1号(TH 6040,下同)防治二代粘虫的试验研究。结果证明,用 TH6040防治粘虫效果好、用药少、成本低、残留少,受到群众欢迎。防治效果一、大田效果。大田防治进行了三次。第一次在1978年6月16日于抚宁三里杨庄棉麦间作田进行。试验面积为2分,重复2次。亩用药2克(按有效成分计算,下同)。防治时先加少量丙酮溶解,然后再加 In 1978-1980, we conducted the experimental study on the prevention and control of Mythimna separata 1 (TH 6040, the same below). The results show that the prevention and control of armyworms with TH6040 good effect, less medication, low cost, less residue, welcomed by the masses. Control effect First, the field effect. Field control took place three times. The first time in June 16, 1978 in Funing Sanli Yangzhuang cotton and wheat intercropping field. Test area of ​​2 points, repeated 2 times. Acne medication 2 grams (calculated according to the active ingredient, the same below). Pretreatment with a small amount of acetone dissolved, and then add