甘薯小象虫是莆田市沿海地区甘薯的主要害虫。近年该虫虫口密度明显回升，危害加剧，受害的甘薯损失颇大。甘薯小象虫对常用农药，如辛硫磷、敌百虫和乐果等，已逐渐产生抗药性。为了找到适宜的新农药，提高防治效果，我们在莆田县北高镇北高村甘薯小象虫重灾区进行了不同... Small elephant sweet potato is the main pest of sweet potato in the coastal area of ​​Putian City. In recent years, the population density of the insect picked up significantly, increasing the harm suffered a lot of sweet potato loss. Small sweety elephant insects on common pesticides, such as phoxim, trichlorfon and dimethoate, has gradually developed resistance. In order to find a suitable new pesticide, improve the control effect, we are in Putian County, North High Village Kitakami sweetpotato whales carried out a different ...