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通过设置25%粉唑醇悬浮剂不同剂量喷施处理,研究该药剂对草莓白粉病的田间防效。发现25%粉唑醇悬浮剂对草莓白粉病具有明显的防效。使用剂量240、360、480、600 g/hm~2在田间发病初期间隔7 d连续喷施2次,第2次药后7 d平均防效分别为75.8%、85.9%、89.1%、90.9%,药后14 d平均防效分别为65.3%、83.0%、88.3%、91.7%,600g/hm~2处理的最终防效最高。使用剂量在360~600 g/hm~2范围内,粉唑醇防效高于对照药剂三唑酮,且持效期较长。
By spraying 25% fluticasone suspension with different doses, the field efficacy of the agent on strawberry powdery mildew was studied. 25% flutriafol was found to have significant control effect on strawberry powdery mildew. The results showed that the average effective rates of control were 75.8%, 85.9%, 89.1% and 90.9% at the dosage of 240, 360, 480 and 600 g / hm ~ , The average control effect on the 14th day after treatment was 65.3%, 83.0%, 88.3%, 91.7% and 600g / hm ~ 2, respectively. The dosage of 360 ~ 600 g / hm ~ 2 range, fluconazole alcohol control effect higher than the control agent triadimefon, and a longer duration.