平榛白粉病的发生与防治试验  

Occurrence and Control Experiments on Powdery Mildew of Corylus heterophylla

作　　者：王忠[1] 左慧[1] 

机构地区：[1]铁岭市林业科学研究院,辽宁铁岭112000

出　　处：《防护林科技》2015年第7期39-40,共2页Protection Forest Science and Technology

摘　　要：论述了平榛白粉病的发病规律,利用不同浓度的代森铵、多菌灵、甲基托布津、三唑酮和百菌清药剂对平榛白粉病进行防治试验,比较了不同种类和不同浓度的药剂对平榛白粉病的防治效果。结果表明:平榛白粉病初期发病为5月下旬至6月初,发病高峰期为6月下旬至7月下旬;代森铵、甲基托布津、多菌灵、百菌清、三唑酮等药剂对平榛白粉病的防治均有不同程度的效果,以25%三唑酮可湿性粉剂防治效果最好,可达到80%以上。The pathogenesis regularity on powdery mildew of Corylus heterophylla was discussed.Different concen-trations of dyson ammonium,carbendazim,thiophanate-methyl,triadimefon and chlorothalonil pesticides were used to control of powdery mildew C.heterophylla.Control effects of different types and concentrations on powdery mil-dew of C.heterophylla were compared.Result shows that early stage of powdery mildew of C.heterophylla is from late May to early June,the peak incidence is in late June to late July;dyson ammonium,thiophanate-methyl, carbendazim,chlorothalonil and triadimefon have effects with varying degrees;25% triadimefon WP can obtain the optimal control effect,being above 80%.

关 键 词：平榛 白粉病 发病规律 防治药剂 

分 类 号：S43[农业科学—农业昆虫与害虫防治]