为筛选高效安全、防效优异的化学药剂及施药方式,在赤霉病防治关键时期,选择市面上常用的小麦赤霉病防治药剂,采用两种施药方式开展小麦赤霉病防效对比试验。结果表明,在防治药剂选择上,可选用20%氟唑菌酰羟胺SC 750 mL/hm²+25%丙环唑EC 600 mL/hm²、40%丙硫菌唑·戊唑醇SC 600 mL/hm²、30%丙硫菌唑OF 900 mL/hm²+43%戊唑醇SC 600 mL/hm²、30%肟菌·戊唑醇SC 600 mL/hm²或70%甲基硫菌灵WP 1 500 g/hm²中的任意一种进行防治。在施药器械选择上,单论施药效果时,采用背负式电动喷雾器的施药效果优于多旋翼植保无人机施药;而考虑人工成本、作业效率和防治时效等多方面因素,应依据自身实际情况酌情选择。本研究为科学防控小麦赤霉病提供参考。

In order to screen for highly effective, safe, and excellent chemical agents and application methods, during the critical period for the control of scab, commonly used wheat scab control agents were selected from the market, and a comparative trial of wheat scab control efficacy was conducted using two application methods. The results showed that for the selection of control agents, any one of the following could be used: 20% fluxapyroxad SC 750 mL/hm²+ 25% propiconazole EC 600 mL/hm², 40% prothioconazole·tebuconazole SC 600 mL/hm², 30% prothioconazole OF 900 mL/hm²+43% tebuconazole SC 600 mL/hm², 30% dimethomorph·tebuconazole SC 600 mL/hm², or 70% thiophanate-methyl WP 1 500 g/hm². In terms of application equipment, when considering only the application effect, the efficacy of using a knapsack electric sprayer was superior to that of using a multi-rotor plant protection drone. However, taking into account factors such as labor, operational efficiency, and timing of control, appropriate method could be choosed based on its actual circumstances. The purpose was to provide a reference for the scientific prevention and control of wheat scab.