200g/L氯虫苯甲酰胺悬浮剂对甘蔗螟虫的防效及对甘蔗产量的影响

Control of Sugarcane Borers by Using Chlorantraniliprole 20% SC and the Impact on the Sugarcane Production

[目的]研究200 g/L氯虫苯甲酰胺悬浮剂（康宽）对甘蔗螟虫的防效和使用技术,及对甘蔗产量的影响.[结果]试验以不同剂量、不同用水量、不同施药次数等对甘蔗螟虫进行了田间防治试验.[结果]200 gL氯虫苯甲酰胺悬浮剂对甘蔗螟虫具有良好的防效,以225 ml/hm2的剂量在甘蔗苗期喷施,并以相同的剂量在药后14 ～ 30 d再次喷施,对螟虫的防效最佳,防治效果达71.21％ ～86.74％,且甘蔗的有效株数及产量均显著高于空白对照的,平均增产11 850～ 12 450 kg/hm2,增幅达16.40％.[结论]为甘蔗的安全生产提供科学依据.

[ Objective] To study the control effect and operation technology of chlorantraniliprole 20% SC against sugarcane borers, and the impact on the sugarcane production. [ Method] The experiment with different factors was carried out, such as the dosage of pesticide, the wa- ter usage, when to using the pesticide, etc. [ Result] The result showed that the control effects of chlorantraniliprole with 225 ml/hm2, and the same dose 14 -30 days after on sugarcane borers were 71.21% -86.74%, the efficient plants and yield were higher than the blank con- trol significantly, yield increase 11 850- 12 450 kg/hm2, growing 16.40%. The result indicated that chlorantraniliprole had good effects on controlling the sugarcane borers. [ Conclusion] The study can provide scientific basis for safety production of sugarcane.