浙江省长兴县2017年开展了大面积水稻病虫害植保无人机施药试点，并进行了减少农药使用量20%和助剂应用的防效试验。结果表明，在农药使用量减少20%时，无人机施药防治效果下降，添加助剂具有增效作用，防治效果接近常规用药量。应用植保无人机防治水稻病虫害试点取得了良好的防效。

A field experiment was carried out to explore the effects of applying plant protection unmanned aerial vehicle（UAV） on rice pests and diseases based on pesticide reduction. The results showed that, compared with the conventional dosage treatment, the effects of the treatment of pesticide reduction 20% with UAV on rice pests and diseases was decreased, the addition agents had a synergistic effect and the control effect was close to the conventional dosage.