氟吡菌酰胺防治瓜类及草莓白粉病田间试验

为了筛选高效、安全的白粉病化学防治药剂，通过田间药效试验进行药剂筛选。试验结果表明，分别在药后7天和14天，氟吡菌酰胺防治甜瓜上白粉病的效果最高，防效均在95%以上。与之相比较，防治黄瓜上白粉病和草莓上的白粉病效果稍低，其防效也在90%以上。研究表明，氟吡菌酰胺防治白粉病效果良好、持效期长，是防治黄瓜、甜瓜、草莓白粉病的一种新型良好杀菌剂。

Field Efficacy Test of Fluopyram on Cucurbits and Strawberry Powdery Mildew

The effective insecticides were selected to control strawberry powdery mildew, Sphaerotheca aphanis and muskmelon powdery mildew, Sphaerotheca fuliginea which damaged melon and strawberry through the field trials. The results indicated that fluopyram showed better rapidly and durable effect, in which the control effect was the highest, the control effect was above 95%, after applied insecticides for 7 d and 14 d. However, the control effect of fluopyram to S. aphanis and S. fuliginea which damaged cucumber strawberry was poor comparatively and its highest effect the control effect was only 90%. The result showed that fluopyram were suitable insecticides for application to control both diseases.