Primary Study of Effect of Several Fungicides against Sphaerotheca aphanis on Strawberry

In greenhouse Sphaerotheca aphanis which causes strawberry powdery mildew was controlled by fungicides such as 10% difenoconazole WG,30% difenoconazole + propiconazole EC,40% flusilazole EC,20% triadimefonand EC and 12.5% myclobutanil EC. It was shown that the effect of five fungicides in suitable concentration was above 80% and the period of protection of difenoconazole,difenoconazole + propiconazole, flusilazole and triadimefon and was about 18 days, while that of myclobutanil was 7 days. The growth of strawberry wasn’t inhibited by difenoconazole, while it was inhibited by flusilazole and triadimefon to certain extent.