Abstract:

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.