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为了筛选新疆喀什地区立架栽培甜瓜的首要病害——甜瓜白粉病的高效药剂,对25%乙嘧酚悬浮剂等7种药剂进行了田间药效试验。结果表明,立架栽培甜瓜第3次喷药后14d,25%乙嘧酚750倍、50%醚菌酯3000倍、25%乙嘧酚1500倍和25%嘧菌酯3000倍药量处理防效分别为99.75%、99.26%、99.20%和96.04%,且这3种药剂的持效性较好。研究讨论了甜瓜白粉病的防治原则、大田甜瓜白粉病的初侵染病源、立架栽培甜瓜白粉病防治始期和高效机械喷雾器应用等关键技术。
In order to screen the most important disease of muskmelon stand cultivation in Kashgar, Xinjiang, the effective agent for powdery mildew of melon was tested in field experiments on seven kinds of agents such as 25% RSV. The results showed that on the 14th day after the third spraying of the erect melon, 25% acetaminophen 750 times, 50% kresoxim-methyl 3000 times, 25% ethyl galille 1500 times and 25% azoxystrobin 3000 times Effectiveness was 99.75%, 99.26%, 99.20% and 96.04%, respectively, and the efficacy of these three agents was better. The research discussed the prevention and cure principle of melon powdery mildew, the primary infection source of melon powdery mildew in field and the initial stage of prevention and cure melon powdery mildew and the application of high efficient mechanical sprayer.