不同药剂对牡丹花链格孢菌叶斑病病菌的室内毒力

目的]筛选对牡丹链格孢菌叶斑病具有较高防效的药剂。方法]测定了8种不同药剂对牡丹链格孢菌叶斑病菌菌丝的室内毒力。结果]30%福嘧霉悬浮剂、10%世高水分散剂对牡丹链格孢菌叶斑病菌的防治效果最好,抑菌率达94%以上;其次为80%大生M-45 WP、35%黑星叶霉唑WP、3%多抗霉素WP和50%扑海因WP;而75%百菌清WP、64%杀毒矾WP的抑菌效果较差。结论]为牡丹链格孢菌叶斑病的控制提供了理论依据。

Laboratory Toxicity of Different Fungicides against Paeonia suffruticosa Alternaria Leaf Spot

Objective] The aim was to screen out some fungicides which had good control effect on Paeonia suffruticosa Alternaria leaf spot.Method]The laboratory toxicities of eight kinds of different fungicides against Paeonia suffruticosa Alternaria leaf spot were determined.Result]30% thiram suspending agent and 10% Score WG had the best control effects on Paeonia suffruticosa Alternaria leaf spot,with the antibacterial rate of more than 94%;followed were 80% Tai Sang M-45 WP,35% tetramethyl thiuramdi sulphide ultrafine WP,3% Polyoxin WP and 50% Iprodione WP,while 75% chlorothalonil WP and 64% oxadixyl.mancozeb WP had the worst effects.Conclusion] The research results provide theoretical basis for the control of Paeonia suffruticosa Alternaria leaf spot.