杀菌剂对番木瓜胶孢炭疽菌的室内毒力测定  

Toxicity Test of Fungicides for Collectotrichum gloeosporioides Penz on Papaya in Laboratory

作　　者：李敏[1] 胡美姣[1] 高兆银[1] 黄鑫[2] 吴水平[2] 杨凤珍[1] 

机构地区：[1]中国热带农业科学院环境与植物保护研究所,海南儋州571737 [2]海南大学环境与植物保护学院,海南儋州571737

出　　处：《农药》2009年第10期767-768,776,共3页Agrochemicals

基　　金：国家科技支撑计划项目(2007BAD48B05);中央级公益性科研院所基本科研业务费专项(NO2007hzs1J006)

摘　　要：胶孢炭疽菌引起的炭疽病是番木瓜最主要的田间及采后病害,采用菌丝生长速率法测定了20种杀菌剂对胶孢炭疽菌的室内毒力。结果表明:咪鲜胺、苯醚甲环唑、氟硅唑、腈菌唑+醚菌酯、丙环唑、戊唑醇、烯唑醇、吡唑醚菌酯8种药剂的抑菌效果较好,EC50值在0.01～0.47mg/L之间;其中咪鲜胺对病菌的EC50值最低,抑菌效果明显高于对照多菌灵,成为最具潜力的替代使用药剂,氟硅唑、戊唑醇和丙环唑3种药剂EC50值也较低,抑菌效果仅次于咪鲜胺。Papaya anthracnose disease caused by Colletotrichurn gloesporioides Penz is an important field and postharvest disease. Toxicity of 20 fimgicides was tested with mycelium growth rate way. The result showed that the toxicities of proehloraz, difenoconazole, flusilazole, myclobutanil＋ kresoxim-methyl, propiconazole, tebucomazole, diniconazole and pyraclostrobin were strongest to the pathogen, EC50 values of them between 0.01-0.47 mg/L, prochloraz was highly toxic, followed by flusilazole, tebuconazole and propiconazole. Difenoconazole, pyraclostrobin and myclobutanil＋kresoximmethyl had good restraining results against the pathogen too.

关 键 词：番木瓜 胶孢炭疽菌 室内毒力测定 

分 类 号：S482.2[农业科学—农药学]