南瓜苗期腐烂病病原鉴定及药剂防治试验  

Pathogen Identification and Pesticide Control of Pumpkin Rot Disease at Seedling Stage

作　　者：刘永亮[1] 苗江涛[1,2] 孙欢欢 尹成林[1] 丛国强[1] 高克祥[1] 

机构地区：[1]山东农业大学植物保护学院,山东泰安271018 [2]青岛众乐化工有限公司,山东青岛266100

出　　处：《山东农业科学》2014年第1期86-88,共3页Shandong Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(201003004);山东省科技发展计划项目(2010GNC10911)

摘　　要：通过组织分离法,从温室大棚内发生南瓜苗期腐烂病的植株中分离得到一株菌株。采用南瓜茎人工接种试验进行致病性测定,确认该菌株为病原菌。经形态学鉴定,初步将该病原菌鉴定为瓜枝孢霉(Cladosporium cucumerinum),编号为Cc-1。孢子萌发试验及温室防病试验结果表明:62.25%腈菌唑·福美双可湿性粉剂800倍液与75%百菌清可湿性粉剂600倍液对真菌Cc-1的孢子萌发抑制率均高于90%,温室防治效果分别为76.11%与75.50%。A strain was isolated from pumpkin seedlings with rot disease in greenhouse by tissue isola -tion.The strain was determined as pathogen by artificial inoculation and pathogenicity test on pumpkin stem . The pathogen was preliminarily identified as Cladosporium cucumerinum by morphological identification , named Cc-1.The results of spore germination and control test in greenhouse showed that the inhibition rate of 800 times diluent liquid of 62 .25%myclobutanil and thirm WP and 600 times diluent liquid of 75%chlo-rothalonil WP on fungus Cc -1 spore germination were both over 90%, and the control effect in greenhouse was 76 .11%and 75 .50%respectively .

关 键 词：南瓜苗 腐烂病 病原鉴定 芽枝霉属 药剂防治 

分 类 号：S436.429[农业科学—农业昆虫与害虫防治] S484.9[农业科学—植物保护]