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[目的]科学使用喷雾器械防治小麦蚜虫。[方法]采用室内模拟和田间喷雾相结合的方法,对4种喷雾器械在小麦植株穗部的沉积特性和对麦蚜的田间防治效果进行评价。[结果]3WBD-16型电动喷雾器0.9 mm喷孔、3WBS-16A型背负式手动喷雾器、JACTO HD400型背负式手动喷雾器、3WBD-16型电动喷雾器2 mm喷孔4种喷雾器械雾滴体积中径分别为114、128、133、161μm;其中114μm雾滴覆盖率最高;田间喷施高容量900 L/hm2和常量600 L/hm2时,114μm雾滴的防治效果最高;114μm雾滴常量喷雾药后7 d的防效与高容量喷雾无明显差异,但显著高于低容量300 L/hm2喷雾。[结论]田间防治麦蚜时,建议使用114μm的雾滴进行喷雾,常量喷雾可以达到理想的防治效果。
[Objective] The scientific use of spray equipment to control wheat aphids. [Method] With the combination of indoor simulation and field spraying, the deposition characteristics of four kinds of spraying instruments on the spikes of wheat plants and their control effects on wheat aphids were evaluated. Results 3WBD-16 Electric Sprayer 0.9 mm Nozzle, 3WBS-16A Knapsack Sprayer, JACTO HD400 Knapsack Sprayer, 3WBD-16 Electric Sprayer 2 mm Nozzles 4 Spray Devices Droplet Volume Medium Diameter Respectively 114,128,133,161μm; of which 114μm droplet coverage rate highest; field spraying high capacity 900L / hm2 and constant 600L / hm2, 114μm droplet prevention and control of the highest effect; 114μm droplet constant spray There was no significant difference between 7 d control and high volume spray, but it was significantly higher than that of low volume 300 L / hm2 spray. [Conclusion] In the field of wheat aphid control, it is recommended to use 114μm droplets for spraying, constant spray can achieve the desired control effect.