摘要
[目的]减少甘蔗害虫杀虫剂使用量和使用次数。[方法]选用10%噻虫胺·杀虫单颗粒剂、40%溴酰·噻虫嗪悬浮种衣剂、8%氟虫腈悬浮种衣剂和75%乙酰甲胺磷可溶性粉剂等4种杀虫剂,在甘蔗种植时一次性施用防治甘蔗螟虫、绵蚜和粉蚧。通过调查、计算各处理的为害株率、防效和农艺性状表现,比较4种杀虫剂的田间药效和增产增糖效果。[结果]一次性施30 kg·hm^(-2) 10%噻虫胺·杀虫单颗粒剂、750 mL·hm^(-2) 40%溴酰·噻虫嗪悬浮种衣剂对甘蔗螟虫、绵蚜和粉蚧有较好的防治效果,甘蔗产量分别为73 845、70 732 kg·hm^(-2),比不施药(CK)分别增产14.17%、9.35%;产糖量分别为13 885、13 388 kg·hm^(-2),显著高于其他处理,比CK分别增糖28.13%、23.54%。750 mL·hm^(-2) 8%氟虫腈悬浮种衣剂、2 700 g·hm^(-2) 75%乙酰甲胺磷可溶性粉剂对甘蔗螟虫、绵蚜和粉蚧的综合防治效果不理想,且对甘蔗的增产增糖效果也不明显。[结论]生产上在种植甘蔗时一次性施用30 kg·hm^(-2) 10%噻虫胺·杀虫单颗粒剂、750 mL·hm^(-2) 40%溴酰·噻虫嗪悬浮种衣剂对甘蔗螟虫、绵蚜和粉蚧具有良好的综合防治效果。
[Purpose]In order to reduce the usage amount and frequency of insecticide on sugarcane pest.[Method]Four insecticides compound mixture including clothianidin and monosultap 10%GR,cyantraniliprole and thiamethoxam 40%FS,flubens 8%FS and acephate 75%SP were applied in sugarcane field.Field efficacy were evaluated by indicators of dead heart rate,damage plant rate,damage node rate,and aphid population density at various growth stages.Major agronomic characters,yield and sugar contents were further measured.[Result]The results showed that the application of clothianidin and monosultap 10%GR at the rate of 30 kg·hm^(-2)and application of cyantraniliprole and thiamethoxam 40%FS at the rate of 750 mL·hm^(-2)had satisfactory control efficacies on sugarcane borer,woolly aphid and mealybug by one-time application,yielding 73845 and 70732 kg·hm^(-2),respectively,up by 14.17%and 9.35%compared with the control.Meanwhile,these two insecticides significantly enhanced sugar yield,totaling 13885 and 13388 kg·hm^(-2),respectively,up by 28.13%and 23.54%compared with the control.Nevertheless,the control efficacies of flubens 8%FS at the rate of 750 mL·hm^(-2)and acephate 75%SP at the rate of 2700 g·hm^(-2)were unsatisfactory,neither were the effects on improving yield and sugar yield.[Conclusion]Application of clothianidin and monosultap 10%GR at 30 kg·hm^(-2),and application of cyantraniliprole and thiamethoxam 40%FS at 750 mL·hm^(-2)can effectively control sugarcane borer,woolly aphid and mealybug by one-time application when planting.
作者
罗亚伟
覃振强
梁阗
李德伟
刘璐
LUO Yawei;QIN Zhenqiang;LIANG Tian;LI Dewei;LIU Lu(Sugarcane Research Institute,Guangxi Academy of Agricultural Sciences/Sugarcane Research Center,Chinese Academy of Agricultural Sciences,Nanning,Guangxi 530007,China)
出处
《亚热带农业研究》
2021年第2期126-130,共5页
Subtropical Agriculture Research
基金
国家重点研发计划项目(2020YFD1000605-13)
国家现代农业产业技术体系广西甘蔗创新团队项目(NYCYTXGXCXTD-03-03)
国家糖料产业技术体系项目(CARS-170206)
广西农业科学院基本科研业务专项(桂农科2021YT013)。
关键词
螟虫
绵蚜
粉蚧
一次性施药
防治效果
sugarcane borer
sugarcane woolly aphid
sugarcane mealybug
one-time application of insecticide
control effect
