80%腐霉利WP对葡萄灰霉病防效试验

Control Efficiency on Botrytis cinerea with 40% Procymidone WP

针对不同浓度80%腐霉利WP进行葡萄灰霉病的田间防效试验研究。结果表明:在葡萄灰霉病发病初期,公顷用药量(有效成分)333-500mg/kg兑水750kg,对葡萄灰霉病有较好的防治效果。喷药间隔期为7d,共喷2次。药后7d防治效果在77.06%-82.34%之间,对葡萄生长安全。

Control effect test of different concentration of 80% procymidone WP to control Botrytis cinerea in field were conducted, the result show that it had the better control efficiency on Botrytis cinerea when it was early stage with 40% procymidone WP 333 -500mg/kg each 7 days. The control efficiency was more than 80% per ha added water 750kg. Two times were sprayed after 7 days, and it was safe to grape.