在茶假眼小绿叶蝉防治中应用静电喷雾器的效果分析

Effect of Applying Electrostatic Sprayer to Control Tea Green Leafhopper(Empoasca vitis Gothe)

以常规手动喷雾器为对照,通过田间试验,分析静电喷雾器施药对茶假眼小绿叶蝉的防治效果、用药量、工作效率及农药残留情况。结果表明,与常规手动喷雾器相比,采用静电喷雾器施药,药后3d茶假眼小绿叶蝉的平均虫口减退率和平均相对防治效果为27.785%和50.885%,是手动喷雾器的1.77和1.19倍;药后7d平均虫口减退率和平均相对防治效果为55.63%和65.97%,是手动喷雾器的1.82倍和1.39倍,具有较好的防治速效性和持效性,且用药量平均减少10.22%,工作效率平均提高72.97%,农药残留量平均减少44.25%。可见,静电喷雾器为当前茶园防治茶假眼小绿叶蝉的一种较为理想的植保机具,可在茶叶生产上推广应用。

Field experiment was conducted to analyze the control effect,dosage,work efficiency and pesticide residue of applying electrostatic sprayer to the tea leafhopper（Empoasca vitis Gothe）,and hand sprayer served as the contrast.The results indicated that,3 days after applying electrostatic sprayer,the rate of population reduction and corrected control efficacy were 27.785% and 50.885% respectively,1.77 times and 1.19 times higher than hand sprayer respectively,while 7 days later the rate of population reduction and corrected control efficacy were 55.63% and 65.97%,1.82 times and 1.39 times higher than hand sprayer,respectively,which showed fast action effect and lasting effect.Moreover,applying electrostatic sprayer could reduce dosage by 10.22%,enhance work efficiency by 72.97% and reduce pesticide residue by 44.25%.In conclusion,the electrostatic sprayer is an ideal application equipment to control tea leafhopper in current tea plantaion and should be applied widely in tea production.