Field Control Efficacy of Three Fungicides against Eucalyptus Purple Blotch

• 作者: Chen Guifang Li Guo Tian Yan Yang Yuanliang
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 桉树油 杀菌剂 田间防效 多菌灵可湿性粉剂 控制效果 甲基硫菌灵 病情指数 杀真菌剂
• 年，卷（期）: 2014,（3）
• 页码范围: 31-33
• 页数: 3页
• 分类号: S482.2

摘要

[Objective] The paper was to explore safe fungicides with high efficiency and long persistence against eucalyptus purple blotch. [Method]10%Difenoconazole WG,500 g /L thiophanate-methyl SC and 50% carbendazim WP were evaluated through experiment in forest,and clear water was used as CK. [Result]Three fungicides all had relatively good control effect against eucalyptus purple blotch. Most eucalyptus trees were able to restore growth and sprout new shoots after continuous three times of administration with the interval of 10 d. 10% Difenoconazole WG possessed the best control effect against eucalyptus purple blotch,with the disease index of 25. 24 and the control effect of 40. 24%; followed by 500 g /L thiophanate-methyl SC 600 times dilution,with the disease index of 27. 09 and the control effect of 35. 87%; 50% carbendazim WP 500 times dilution had the poorest control effect,with the disease index of 32. 21 and the control effect of23. 74%. The disease index of CK was 42. 24. [Conclusion]The above fungicides were safe to eucalyptus,and could be used to control eucalyptus purple blotch.