摘要
近年海南辣椒白斑病发生严重,主要危害辣椒叶片,病株叶片布满白色孔斑,严重影响辣椒品质和产量。从甜椒病叶组织分离病菌,经过病原菌形态、r DNA和ITS序列鉴定为番茄匐柄霉Stemphylium lycopersici。对田间辣椒白斑病进行4种杀菌剂[苯甲·氟唑菌酰胺SC(健攻)、肟菌酯·氟吡菌酰胺SC(露娜森)、苯醚甲环唑WG(世高)、四霉素]的药剂防治实验结果表明,新型混配杀菌剂12%苯甲·氟唑菌酰胺SC(健攻)和42.8%肟菌酯·氟吡菌酰胺SC(露娜森)具有较好的防效,14 d的防治效果分别达到77.51%和75.01%,而10%苯醚甲环唑WG(世高)的防治效果稍差,防效仅为27.51%。
In recent years gray leaf spot disease occurred seriously on sweet pepper in Hainan,and mainly infected leaves which were covered with gray perforated lesions,giving serious impact on the quality and yield of sweet pepper. Pathogens were isolated from the leaf tissue of the sweet pepper infected with the gray leaf spot,and identified as Stemphylium lycopersici based on their morphology and r DNA ITS sequence. A field trial was conducted to control the gray leaf spot disease by using 4 fungicides,i. e. difenoconazole fluxapyroxad,trifloxystrobin fluopyram,tetramycin and difenoconazole. The results showed that 2 fungicides,12% difenoconazole fluxapyroxad SC（ Jiangong） and 42. 8% Trifloxystrobin fluopyram SC（ Lunaseng）,had a good effect on the control of the gray leaf spot on sweet pepper in the field,with their respective controlling effect of 77. 51% and75. 01% at day 14. The controlling effect of 10% difenoconazole WG（Shigao） was slightly lower,only 27. 51%.
作者
黄文枫
王敏
胡艳平
马伏宁
郭刚
Huang Wenfeng;Wang Min;Hu Yan ping;Ma Fu ning;Guo Gang(HainanVegetable Research Institute;Hainan Academy of Agricultural Sciences,Haikou,Hainan 571100,Chin;2.Hainan Engineering and Technology Research Center for Breeding of Melons and Vegetables,Haikou,Hainan 571100,China 3.Hainan Key Laboratory for Biology of Vegetables,Haikou,Hainan 571100,China;Haikou Experimental Station,Chinese Academy of Tropical Agricultural Sciences,Haikou,Hainan 571100,China)
出处
《热带生物学报》
2018年第2期203-206,共4页
Journal of Tropical Biology
基金
国家大宗蔬菜产业技术体系海口试验站
关键词
甜椒
真菌病害
杀菌剂
sweet pepper
fungal disease
fungicide
作者简介
黄文枫（1975-），男，园艺师．E—mail：ajv993@163．com;通信作者：郭刚（1972-），男，副研究员．研究方向：植物病害生物防治．E—mail：gggchilly@163．com
