利用芽孢杆菌防治甜瓜霜霉病试验研究

Studies on the Effect of Bacillus on Muskmelon Downy Mildew

研究表明 ,芽孢杆菌菌株Z X 3、Z X 1 0对甜瓜霜霉病孢子囊萌发有较强的抑制力。离体叶片法和大棚防治试验证明 ,两菌株相对保护效果分别达到 49.43%,42 .5 3%,高于克霜氰31 .0 3%的保护效果 ;治疗效果分别达到 44.71 %,43.5 3%,高于克霜氰 36.

Studies showed that two stains,Z X 3 and Z X 10 of Bacillus had strong restraining activity against Pseudoperonospora cubensisn(Berk.et curt) Rostor.The controll test on detached-leaves and in greenhouse,indicated that the protective effects of Z X 3 , Z X 10 strains on Pseudoperonospora cubensis were 49.43% and 42.53% respe.They were higher than those of chemical bactericide cymoxanil and mancozb(31.03%).The cure effects of these two strains were 44.71% and 43.53%,resp.,which were higher than those of chemical bactericide cymoxanil and mancozb (36.47%).