中文摘要：

为合理使用低毒农药防治水稻粘虫,2015年7月在广西乐业县同乐镇和甘田镇进行25%灭幼脲悬浮剂和2.2%甲氨基阿维菌素苯甲酸盐微乳剂防治粘虫大田示范试验。结果表明：施药后17 d,核心区25%灭幼脲对粘虫的防治效果和保叶率分别为96.19%和94.73%,在培训指导农民防治示范区的防效分别为93.50%和95.10%;施药后10 d,核心区2.2%甲氨基阿维菌素苯甲酸盐对粘虫的防治效果和保叶率分别为96.61%和97.35%,在培训指导农民防治示范区的防效分别为90.07%和89.59%。25%灭幼脲和2.2%甲氨基阿维菌素苯甲酸盐处理区对粘虫的防效均要高于农民自防区。

英文摘要：

In order to appropriately use low-toxicity pesticides to control Mythimna separata （Walker） on rice, a field demonstration experiment was conducted in 2015 in Tongle and Gantian Towns, Leye County, Guangxi Province to assess the efficacy of 25% chlorbenzuron suspension and 2.2% emamectin benzoate microemulsion applied in June and July, respectively. The results showed that at 17 days post treatment （dpt）, chlorbenzuron achieved the efficacy of 96.19% and 94.73% in controlling separata inthe central and larger experimental fields, respectively, with the corresponding leaf protection rates of 95.10% and 93.50% , respectively. At 10 dpt, emamectin benzoate attained the control efficacy of 96.61% and 97.35% in the central and larger experimental fields, respectively, with the corresponding leaf protection rates of 89.59% and 90.07% , respectively. Both chlorbenzuron and emamectin benzoate attained greater control efficacy than commonly used pesticides in the control group. In conclusion, chlorbenzuron is effective in controlling the young larvae o f separata, while emamectin benzoate has a strong inhibitory effect on the oldlarvae; hence, these two pesticides can be extensively used for rice production.