摘要
为减少甘蔗螟虫防治药剂的使用量和使用次数,研究了6种不同杀虫剂一次性施药对甘蔗螟虫的田间防治效果及对甘蔗产量和锤度的影响。结果表明,新植蔗一次性施用10%噻虫胺·杀虫单颗粒剂75 kg/hm^2、30%氯虫·噻虫嗪悬浮剂600 mL/hm^2、2%吡虫啉颗粒剂75 kg/hm^2、3.6%杀虫双颗粒剂75 kg/hm^2和60%呋虫胺种子处理可分散粉剂150 g/hm^2对苗期螟虫均有较好的防效,其中10%噻虫胺·杀虫单颗粒剂75 kg/hm^2和30%氯虫·噻虫嗪悬浮剂600 mL/hm^2药后第45天和第60天的防效均超过70%;宿根蔗也以10%噻虫胺·杀虫单颗粒剂75 kg/hm^2和30%氯虫·噻虫嗪悬浮剂600 mL/hm^2对苗期螟虫的防治效果较好;新植蔗中6种药剂处理甘蔗锤度、有效茎和蔗茎产量与不施任何农药对照差异均不显著;宿根蔗6种药剂处理甘蔗锤度和有效茎与对照差异均不显著,但产量差异显著,以10%噻虫胺·杀虫单颗粒剂75 kg/hm^2蔗茎产量最高,比对照增产17.5%。综合来看,生产上一次性施用10%噻虫胺·杀虫单颗粒剂75 kg/hm^2对甘蔗螟虫有较好的防治效果,可达到增产增效的目的。
In order to reduce the usage amount and frequency of insecticide on sugarcane borers, the field efficacy of six different insecticides with one-time application on borers and its effect on sugarcane yield and brix were studied. The results showed that there had better control efficacy on the borers in new-plant seedling when spray the 10% clothianidin·monosultap granules of 75 kg/hm^2, 30% chlorantraniliprole·thiamethoxam suspending agent of 600 mL/hm^2, 2% imidacloprid granules of75 kg/hm^2, 3.6% insecticidal double particle and 60% dinotefuran dispersible powder of 150 g/hm^2 on sugarcane with onetime application. The control efficacy of 10% clothianidin·monosultap granules of 75 kg/hm^2 and 30% chlorantraniliprole·thiamethoxam suspending agent of 600 mL/hm^2 were more than 70% after applied for 45 days and 60 days. In ratoon sugcarcane, the control efficacy of 10% clothianidin ·monosultap granules of 75 kg/hm^2 and 30% chlorantraniliprole ·thiamethoxam suspending agent of 600 mL/hm^2 on borers also were higher than the other insecticides tested. There were no significances on brixs, effective stems and yields of sugarcane in new-plant among the six insecticides compared the control without use insecticide. On the other hand, there were no significance on brixs and effective stems of sugarcane in ratoon among the six insecticides compared the control without use insecticide. While the yield of sugarcane with spraying 10%clothianidin·monosultap granules of 75 kg/hm^2 was the highest compared the other treatments tested. There have a significant increase of 17.5% in yield when apply 10% clothianidin·monosultap granules of 75 kg/hm^2 compared the control without use insecticide. The results from this study indicated that there have better control efficacy of 10% clothianidin ·monosultap granules of 75 kg/hm^2 on sugarcane borers, and it can increase the sugarcane yield and production efficiency.
作者
罗亚伟
覃振强
李德伟
梁阗
LUO Ya-wei;QIN Zhen-qiang;LI De-wei;LIANG Tian(Sugarcane Research Institute,Guangxi Academy of Agricultural Sciences/Sugarcane Research Center,Chinese Academy of Agricultural Sciences,Nanning 530007,China)
出处
《湖北农业科学》
2020年第3期82-86,共5页
Hubei Agricultural Sciences
基金
国家重点研发计划项目(2018YFD0201103)
国家现代农业产业技术体系广西甘蔗创新团队项目(NYCYTXGXCXTD-03-01)
广西农业科学院基本科研业务专项(桂农科2017YM04)。
关键词
甘蔗螟虫
杀虫剂
防治效果
sugarcane borer
insecticide
control efficacy
