[Objective] The aim was to screen some both highly effective and lowly toxic pesticides for sweet potato underground pests control. [ Method] Experiments of different pesticides were carried out to compare the underground pests control efficacy in sweet potato fields with heavy damage.[Result] All pesticides were effectual.30%phoxim microencapsules had the higher control efficacy,and the control effect was more than 69%.5% imidacloprid WP had medium control efficacy,and the control effect was 41.21%.Phoxim EC and Shennondan granules had lower con-trol efficacy.[Conclusion] The30%phoxim microencapsules have good prospects in the prevention and control of the underground pests of sweet potato.%[目的]筛选高效低毒的甘薯地下害虫防治药剂.[方法]在江苏徐州、河南商丘和河北易县对不同药剂进行了田间防效试验.[结果]所试药剂对蛴螬均有一定防治效果,30%辛硫磷微胶囊剂的防治效果最好,在69%以上;其次是5%吡虫啉可湿性粉剂,其防治效果为41.21%;神农丹和辛硫磷乳油的防治效果则相对较差.[结论]30%辛硫磷微胶囊剂在甘薯地下害虫的防治上有较好的应用前景.
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