盾叶薯蓣斑点病研究初报  

Study on Leaf Spot in Dioscorea zingiberensis

作　　者：范晖[1] 赵杰[2] 张锋[1] 张晴[2] 

机构地区：[1]陕西省动物研究所,西安710032 [2]西北农林科技大学植保学院,陕西杨凌712100

出　　处：《西北农业学报》2003年第3期93-95,共3页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：陕西省科技攻关资助项目(01K04-G2-07)

摘　　要：描述了盾叶薯蓣斑点病的症状及病原菌的形态特征。并采用悬滴孢子萌发法在室内用80％多菌灵、80％抑快净、70％甲基托布津、70％可杀得和70％仙生对薯蓣叶点霉作生物测定,计算各药剂对该菌的有效中浓度EC_(50),结果表明,甲基托布津EC_(50)最小。大田试验也表明,甲基托布津对薯蓣叶点霉有较好的防治效果,相对防效达88.6％。The symptom and pathogen of leaf spot in yam were described. The method of spore germination was used to conduct indoor biological test for the fungus by applying 50% carbendozim ,80% famoxadone, 70% thiophanate,70% Cupric Hydroxide, 70%gana. After the calculating the EC50 to the disease , the results indicated that the EC50 of thiophanate was lowest . The field effects also showed that thiophanate had good effect on controlling the disease, the relative control effect amounted to 88. 6%.

关 键 词：盾叶薯蓣 斑点病 病原菌 形态特征 防治效果 

分 类 号：S435.39[农业科学—农业昆虫与害虫防治]