摘要
[目的]在尽可能降低农药施用量及投入成本情况下,调查茶园新型非水溶性农药帕力特施用浓度、施药机械、施药后叶蝉虫口减退率、防效、茶园产量产值等数据,探索茶园的最适施用浓度及方法。[方法]通过采用不同帕力特施用浓度、不同施药机械进行对比试验。[结果]在用药允许范围内施用帕力特450 mL/hm^2时叶蝉减退率最高达92.74%、防效最高达95.25%,且收益较对照组高3 085.5元/hm^2、较低浓度组(225 mL/hm^2)收益高2 065.5元/hm^2,防治效果及综合效益显著强于对照及低浓度组;不同施药机械试验组使用机动喷雾器时叶蝉减退率最高达96.53%、防效最高达96.52%,较常用人工喷雾而言节省成本52.5元/hm^2、工效提高3.3倍,防治效果及综合效益显著强于电动组及人工组。[结论]结合虫口减退率、防效、成本及经济效益分析,建议在条件允许范围内使用机动喷雾器进行帕力特450 mL/hm^2浓度喷施。
[Objective]Under the condition of reducing the pesticide application rate and input cost as much as possible,the data of the new non-water-soluble pesticide Parit application concentration in tea garden,the application mechanism,the reduction rate of Empoasca vitis mouth,the control effect,the output value of tea garden production and other data were investigated to explore the tea garden.[Method]A comparative test was conducted by applying different concentrations of Parit and different spraying machines.[Result]Compared with the low concentration group (225 mL/hm^2),the reduction rate of Empoasca vitis mouth was up to 92.74%,the control effect was up to 95.25%,and the benefit was 3 085.5 yuan/hm^2 higher than the control group,and 2 065.5 yuan/hm^2 higher than the lower concentration group,the control effect and comprehensive benefit were significantly stronger than the control and low concentration groups.When using the motorized sprayer,the Parit hopper reduction rate was up to 96.53% and the control effect was up to 96.52%.Compared with the commonly used artificial spray,the cost was 52.5 yuan/hm^2,and the work efficiency was increased by 3.3 times.The control effect and comprehensive benefit were more significant than the electric group and the artificial group.[Conclusion]In combination with the reduction of insect population,control efficiency,cost and economic benefit,it is recommended to use a motorized sprayer for 450 mL/hm^2 Parit spraying within the scope of the conditions.
作者
王春梅
刘跃云
陈叙生
WANG Chun-mei;LIU Yue-yun;CHEN Xu-sheng(Yibin Academy of Agricultural Sciences,Yibin,Sichuan 644600)
出处
《安徽农业科学》
CAS
2019年第4期136-139,共4页
Journal of Anhui Agricultural Sciences
基金
国家茶叶产业技术体系项目
关键词
叶蝉
帕力特
精量化
防效
减退率
机动喷雾
成本
Empoasca vitis
Parit
Precision
Control efficiency
Reduction rate
Motorized spray
Cost
