摘要
二斑叶螨是扁豆主要害虫之一,发生较重时可降低扁豆产量和品质。本研究评价了30%腈吡螨酯悬浮剂对扁豆二斑叶螨的田间药效及其对扁豆的安全性。田间使用有效成分量67.5、90、112.5 g/hm2,药后1 d三地的田间防效66.5%~85.9%、药后3 d 82.1%~92.3%、药后7 d 86.9%~95.2%、药后14 d 80.9%~96.1%,能有效防控扁豆二斑叶螨,具有较好的速效性和良好的持效性。作物安全性试验表明30%腈吡螨酯悬浮剂对扁豆安全。建议登记30%腈吡螨酯悬浮剂防治扁豆二斑叶螨,推荐使用有效成分量67.5~112.5 g/hm^(2)(制剂量15~25 mL/667m^(2)),于二斑叶螨发生初期施药1次。
As one of the major pests on Lablab purpureus(L.)Sweet,Tetranychus urticae can reduce the yield and quality of Lablab purpureus(L.)Sweet.This study evaluated the field efficacy of cyenopyrafen 30%SC against Tetranychus urticae and its saftey on Lablab purpureus(L.)Sweet.Field control efficacy ranged from 66.5%~85.9%,82.1%~92.3%,86.9%~95.2%,80.9%~96.1%at 1,3,7 and 14 days after application of cyenopyrafen 30%SC,with dose of 67.5,90,112.5 g a.i./hm 2(15,20,25 mL/667m^(2)).The product demonstrated both quick and long-term efficacy in effectively controlling Tetranychus urticae on Lablab purpureus(L.)Sweet.The results of laboratory test for crop safety evaluation confirmed the pesticide’s safety for application.It is recommended to apply cyenopyrafen 30%SC once at the initial stage of Tetranychus urticae on Lablab purpureus(L.)Sweet,with dose of 67.5~112.5 g a.i./hm^(2).
作者
陈秀
方朝阳
高永东
黄兰淇
赵莉
张颂函
Chen Xiu;Gao Yongdong;Huang Lanqi;Zhao Li;Zhang Songhan;Fang Zhaoyang(Agriculture Technology Extension Service Center of Shanghai/Shanghai Institute for the Control of Agrochemicals,Shanghai 201103,China;Shanghai Songjiang District Xinbang Town Agricultrural and Rural Service Center,Shanghai 201600,China)
出处
《农药科学与管理》
CAS
2024年第1期39-43,共5页
Pesticide Science and Administration
基金
上海市绿叶蔬菜和特色小宗作物农药安全使用风险评估(财政项目编号2021-01102)。
关键词
扁豆
二斑叶螨
腈吡螨酯
田间药效
安全性
lablab purpureus(L.)sweet
tetranychus urticae
cyenopyrafen
field control efficacy
saftey
