The control effects of eight pesticides on stem-nematode disease of sweet potato under field experiment conditions were evaluated.The results showed that five pesticides (45 kg/ha of 5 ％ Shennongdan G, 30 kg/ha of 10 ％ Fuqiduo G, 9 L/ha of 22 ％ Imidacloprid · Phoxim EC, 15 L/ha of 35 ％ Phoxim FL and 15 L/ha of 40％ Chlorpyrifos EC) had preferable controlling effects.The control efficacy was 77.96％-89.93％ ,85.30％-97.91％ and 83.06％-98.94％, based on diseased plants, diseased tubers and disease index, respectively.According to control efficacy, toxicity and cost-effect,9L/ha of 22％ Imidacloprid · Phoxim EC and 15 L/ha of 35％ Phoxim FI were more suitable to control stem-nematode disease of sweet potato in production.%从病株率、病薯率、病情指数3个方面评价了8种供试药剂对甘薯茎线虫病的田间防治效果,其中,5%神农丹颗粒剂45 kg/hm2、10%福气多颗粒剂30 kg/hm2、22%吡虫·辛硫磷乳油9 L/hm2、35%辛硫磷微胶囊悬浮剂15L/hm2和40%毒死蜱乳油15L/hm2的防治效果较好,株防效为77.96%～89.83%,薯防效为85.30%～97.91%,病情指数防效为83.06%/6～98.94%.综合防治效果、药剂毒性、施用成本等因素,建议生产上施用22%吡虫·辛硫磷乳油9L/hm2和35%辛硫磷微胶囊15 L/hm2防治甘薯茎线虫病.
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