UAV ultralow-volume spray technology of thiamethoxam and control efficacy against Brevicoryne brassicae.

IF 4.2 1区农林科学 Q1 AGRONOMY

Pest Management Science Pub Date : 2026-09-01 Epub Date: 2026-05-16 DOI:10.1002/ps.70909

Yujun Long, Haiyan Zhang, Bangyan Song, Guohui Liao, Minggui Chen, Xiangyan Chen, Lixin Qin, Feng Zhu

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引用次数: 0

Abstract

Background: Plant protection unmanned aerial vehicles (UAV) provide an effective solution for aphid control in oilseed rape. However, the absence of dedicated formulations tailored for UAV application currently limits the full exploitation of their high efficiency. Therefore, the development of novel insecticide formulations is of great importance.

Results: A ultralow-volume liquid (UL) suitable for plant protection UAV application was developed. The developed UL has a low surface tension, fast wetting speed, strong anti-volatility and a long effective period. Thiamethoxam UL at a dosage of 15 g a.i. ha^-1 achieved 94.60% control efficacy against Brevicoryne brassicae 21 days after treatment. The dissipation dynamics of thiamethoxam in rapeseed followed first-order kinetics, with a degradation half-life of 4.35-5.44 days.

Conclusion: The developed thiamethoxam UL, when applied using plant protection UAVs, effectively addresses multiple challenges in rapeseed cultivation, including rural labor shortages, hydrophobic rapeseed surfaces, difficulties in manual spraying during the rapeseed pod period, and risks of pesticide poisoning. This technology demonstrates significant potential for widespread adoption in water-scarce mountainous regions. © 2026 Society of Chemical Industry.

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噻虫嗪无人机超低体积喷雾技术及其对芸苔短锥虫的防治效果。

背景：植保无人机（UAV）为油菜蚜虫防治提供了有效的解决方案。然而，目前缺乏为无人机应用量身定制的专用配方限制了其高效率的充分利用。因此，开发新型杀虫剂配方具有重要意义。结果：研制出一种适合植保无人机应用的超低体积液体（UL）。研制的UL表面张力低，润湿速度快，抗挥发性强，有效期长。噻虫嗪UL剂量为每天15克。ha-1在处理21 d后防治效果为94.60%。噻虫嗪在油菜中的耗散动力学符合一级动力学，降解半衰期为4.35 ~ 5.44 d。结论：研制的噻虫脒UL在植保无人机的应用下，有效解决了农村劳动力短缺、油菜籽表面疏水、油菜籽荚果期人工喷洒困难、农药中毒风险等油菜种植中的多重挑战。这项技术显示出在缺水山区广泛采用的巨大潜力。©2026化学工业协会。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pest Management Science 农林科学-昆虫学

CiteScore

7.90

自引率

9.80%

发文量

553

审稿时长

4.8 months

期刊介绍： Pest Management Science is the international journal of research and development in crop protection and pest control. Since its launch in 1970, the journal has become the premier forum for papers on the discovery, application, and impact on the environment of products and strategies designed for pest management. Published for SCI by John Wiley & Sons Ltd.