芽孢杆菌对黄瓜霜霉病的防治效果研究  

Studies on the effect of Bacillus on downy mildew of cucumber

作　　者：李星[1] 张汀[1] 杨文香[1] 董立[1] 刘大群[1] 

机构地区：[1]河北农业大学植物保护学院,保定071001

出　　处：《植物保护》2003年第4期25-27,共3页Plant Protection

基　　金：河北省科技技术研究与发展项目(01220139D)

摘　　要：经黄瓜霜霉病孢子囊萌发抑制试验明确,芽孢杆菌菌株Z-X-3、Z-X-10对黄瓜霜霉病菌有较强拮抗作用。离体叶片法和温室防病试验表明,两菌株对黄瓜霜霉病有较好的防治效果,相对保护效果分别达46.42％、41.55％;治疗效果分别达46.30％、44.44％,高于农药克霜氰的31.81％、37.03％。Twostainsi Z-X-3 and Z-X-10, of Bacillus with strong antagonistic activity against Pseudoperonospora cubensis (Berk, et Curt.) Rostov, were selected by using an apore-germination method. The control effects of Z-X-3, Z-X-10 strains on downy mildew of cucumber were tested on detached-leaves and in greenhouse. The relative immunisation efficiencies of Z-X-3 and Z-X-10 were 46.42% and 41.55%, and the control effects were 46.30% and 44.44%, respectively. They were higher than those of chemical fungicide cymoxanil and mancozb with 31.81 % and 37.03% , respectively.

关 键 词：芽孢杆菌 黄瓜 霜霉病 防治效果 孢子囊 萌发抑制试验 离体叶片法 温室防病试验 

分 类 号：S436.421.11[农业科学—农业昆虫与害虫防治]