西瓜枯萎病病原菌的室内药剂筛选  

Pathogen Identification of Watermelon Fusarium Wilt and Laboratory Fungicides Screening

作　　者：王爽[1] 罗丰[1] 肖春雷[1] 刘勇[1] 孔祥义[1] 

机构地区：[1]海南三亚市南繁科学技术研究院,572000

出　　处：《长江蔬菜》2014年第18期70-72,共3页Journal of Changjiang Vegetables

基　　金：国家现代西甜瓜产业技术体系(CARS-26-37)

摘　　要：利用生长速率法,对9种西瓜枯萎病防治药剂进行室内筛选,结果表明,化学杀菌剂苯甲·嘧菌酯的抑菌效果最好,EC50值为1.361 05 mg/L,苯醚甲环唑和异菌脲的抑菌效果较好,EC50值分别为3.846 54 mg/L和4.893 36 mg/L;2种生物杀菌剂寡雄腐霉和多粘类芽孢杆菌的室内抑菌效果均表现较好,且寡雄腐霉的抑菌效果更好。The laboratory screening test of nine fungicides against watermelon fusarium wilt was carried out by using growth rate method. The results showed that, among the seven chemical fungicides, difenoconazole ·azoxystrobin suspension concentrate （SC） had the best antifungal effect with the ECso value of 1.36105 mg/L, and difenoconazole water dispersible granule and iprodione wettable powder （WP） showed better antifungal effect with their ECso values of 3.84654 mg/L and 4.89336 mg/L respectively. The two biological fungicides, Pythium oligandrum WP and Paenibacillus polymyxa fine granule （FG） had better indoor antifungal effect, and Pythium oligandrum WP was better than Paenibaeillus polymyxa FG.

关 键 词：西瓜枯萎病 化学杀菌剂 生物杀菌剂 室内筛选 

分 类 号：S436.5[农业科学—农业昆虫与害虫防治] S651[农业科学—植物保护]