摘要
[目的]为筛选出可有效防治水稻纹枯病的药剂,给其田间防治提供依据。[方法]以室内生长速率法对4种杀菌剂进行室内毒力测定。[结果]中噻呋·戊唑醇、精甲·咯·嘧菌和苯甲·醚菌酯对水稻纹枯病菌的抑菌效果较好,其EC50分别为0.076 1、0.079 8和0.035 3 mg/L,中生菌素效果次之。[结论]在供试的几种药剂中,中噻呋·戊唑醇、精甲·咯·嘧菌和苯甲·醚菌酯具有较好的抑菌效果,建议用于水稻纹枯病的田间防治。
[Objective]The aim was to select fungicides that could effectively con- trol rice sheath blight disease. [Method] Toxicity of several fungicides on Rhizoctonia solani were determined by measuring mycelium growth rate. [Result] The mycelium growth inhibition of tebuconazole, difenoconazole fludioxonil FS and difenoconazole kresoxim-methyl SC were higher than others, the EC50 values of three fungicides were 0.076 1 mg/L, 0.079 8 mg/L, 0.035 3 mg/L ,respectively. And zhongshengmycin was second. [Conclusion] In the several supplied fungicides, tebuconazole, difenoconazole fludioxonil FS and difenoconazole kresoxim-methyl SC were best and could be used as effective pesticides to control rice sheath blight disease in field.
出处
《农业灾害研究》
2013年第9期16-17,27,共3页
Journal of Agricultural Catastrophology
关键词
水稻纹枯病
杀菌剂
抑菌作用
毒力测定
Rice sheath blight disease
Fungicides
Inhibition of mycelium growth
Toxicity test
