摘要
[目的]明确20%氯虫苯甲酰胺悬浮剂、40%氯虫·噻虫嗪水分散粒剂以及10%苯醚甲环唑水分散粒剂对辽宁高粱主要病虫害的防治效果。[方法]于2016—2017年采用小区试验和生产田大区防控试验的方法,在高粱喇叭口期1次叶面喷雾施药和喇叭口期与开花期2个时期叶面喷雾施药。[结果]3种药剂各试验剂量混合处理对高粱植株生长安全无药害,持效期长,对高粱田发生的1代玉米螟防效达92.63%~96.12%、全生育期玉米螟蛀孔防效达73.84%~86.52%,对高粱靶斑病防效达61.47%~69.74%,防控作用理想,可有效降低病虫害为害程度,增产作用明显,产量增加7.84%~12.84%。[结论]3种药剂对高粱安全。建议在使用时根据当地高粱病虫害发生具体情况,选择20%氯虫苯甲酰胺SC或40%氯虫·噻虫嗪WG 150mL(g)/hm^2制剂量,混合10%苯醚甲环唑WG 300g/hm^2制剂量,于高粱喇叭口期1次叶面喷雾施用或喇叭口期与开花期2次叶面喷雾施用。
[Aims] This study aims to identify the control effect to main sorghum pest and disease in Liaoning province of cholrantraniliprole 20% SC, virtako 40% WG and difenoconazole 10% WG. [Methods] Plot experiment and large area experiment were carried out in 2016-2017, and the pesticides were applied to leaf surface during bell mouth and flowering periods. [Results] The three pesticides appeared to be safe and no spray burn of all tested doses. The pesticides can effectively control Asian corn borer(control efficacy 92.63-96.12%) and Sorghum Target Leaf Spot(control efficacy 61.47-69.74%) with long control duration, and the crop yield increased by 7.84-12.84% through the pesticides application. [Conclusions] All the three experimented pesticides are safe for sorghum production. The suitable pesticide, doses(cholrantraniliprole or virtako with 150mL(g)/ha, difenoconazole with 300g/ha) and applicaion time(once during bell mouth period or twice during bell mouth and flowering periods) should be recommended according to local pest and disease situation.
作者
董怀玉
侯志研
卢峰
王丽娟
董智
王艳秋
DONG Huai-yu;HOU Zhi-yan;LU Feng;WANG Li-juan;DONG Zhi;WANG Yan-qiu(Liaoning Academy of Agricultural Sciences 1.Institute of Plant Protection;Tillage and Cultivation Research Institute;Inovation Center, Shenyang 110161, China)
出处
《农药》
CAS
CSCD
北大核心
2018年第5期387-390,共4页
Agrochemicals
基金
国家现代农业产业技术体系项目(CARS-06-13.5-A22)
关键词
氯虫苯甲酰胺
氯虫·噻虫嗪
苯醚甲环唑
高粱病虫害
防效
chlorantraniliprole
virtako
difenoconazole
sorghum pest and disease damage
control effect