摘要
以3.6%杀虫双颗粒剂为对照药剂,研究30%度锐悬浮剂不同施用量对宿根蔗甘蔗螟虫和绵蚜的防治效果。结果表明：30%度锐悬浮剂450 m L/hm^2、600 m L/hm^2、750 m L/hm^2处理在药后15 d、30 d、60 d对甘蔗螟虫的防治效果均高于3.6%杀虫双颗粒剂90 kg/hm^2,其中以度锐750 m L/hm^2处理的防治效果最高且差异显著。30%度锐600 m L/hm^2处理药后30 d、60 d的防治效果与3.6%杀虫双颗粒剂的防治效果差异达显著水平。30%度锐3个不同处理,于药后130 d、160 d、190 d对宿根蔗绵蚜的防治效果均达到100%,而杀虫双的防治效果只有27.81%-8.20%,且防治效果随着时间延长递减。30%度锐3个不同处理间的甘蔗平均锤度和产量差异不显著,但与杀虫双和空白对照相比差异达显著水平。本研究说明30%度锐悬浮剂对甘蔗螟虫和绵蚜具有良好的防治效果,田间施用量建议为600-750 m L/hm^2。
Control effects of Durivo 30% SC on sugarcane borers and woolly aphid were studied in ratoon cane field and Bisuhap 3.6% GR was as a control in this study. The results showed that： the control effects of Durivo 30% SC with 450 mL/ha, 600 mL/ha, 750 mL/ha on sugarcane borers were higher than Bisultap 3.6% GR 90 kg/ ha after 15 d, 30 d and 60 d, respectively. The highest control effect was on Durivo 30% SC 750 mL/ha, and there were significant differences in comparison with Bisultap 3.6% GR. Moreover, there were significant differences among the control effects of Durivo 30% SC 600 mL/ha and Bisultap 3.6% GR after 30 d, 60 d. After 130 d, 160 d and 190 d the control effects of Durivo 30% SC with 450 mL/ha, 600 mL/ha, 750 mL/ha on woolly aphid were reaching at 100%, while the control effects of Bisuhap 3.6% GR was decreased from 27.81% to 8.20% with time prolonged. Further more there were no significant differences among the average brix and cane yield of Durivo 30% SC with 450 mL/ha, 600 mL/ha, 750 mL/ha, but there were significant differences in comparison with the Bisultap 3.6% GR and without spraying any pesticides. The result indicated that Durivo 30% SC had better efficacy on controlling sugarcane borers and woolly aphid with 600 mL/ha to 750 mL/ha.
出处
《中国糖料》
2015年第1期28-30,共3页
Sugar Crops of China
基金
国家现代农业产业体系广西创新团队(甘蔗)项目(NYCYTXGXCXTD-02)
广西科学研究与技术开发计划-科技创新能力与条件建设项目(桂科能1131B01)
广西农业科学院基本科研业务专项项目(桂农科2012YZ15
桂农科2013YZ20)
