摘要
通过室内抑菌和温室盆栽试验,对常用土壤杀菌剂多菌灵与恶霉灵及其混合使用防治甜瓜枯萎病的效果进行研究。结果表明:多菌灵对甜瓜枯萎病菌菌丝生长具有较强的抑制作用,EC50为3.01 mg/L,恶霉灵的EC50为261 mg/L,多菌灵对菌丝生长的抑制作用强于对孢子萌发,恶霉灵对孢子萌发的抑制作用强于菌丝生长,恶霉灵可显著刺激甜瓜生长,恶霉灵与多菌灵具有协同增效作用;采用田间常用浓度进行土壤处理,恶霉灵与多菌灵混合使用相对防效达82.21%～86.67%,与单独使用恶霉灵相比可提高防治效果13.23%,与单独使用多菌灵相比,可提高防效60.47%。
The influence of soil fungicides, such as carbendazim and hymexazol, on controlling melon wilt（Fusarium ox- ysporum）was investigated. The result showed that carbendazim had a strong inhibition to the growth of mycelium of Fusarium oxysporurn with EC50 values of 3.01 mg/L,EC50 values of hymexazol was 2. 61 mg/L. The inhibition of carbendazim on growth of mycelium was stronger than on spore germination, but the inhibition of hymexazol on spore germination was stronger than on growth of mycelium. Hymexazol stimulated growth of melon, and had better effect on controlling melon wilt when applicated with carbendazim. The control effect of the mixture of carbendazim and hymexazol reached to 82.21%-86. 67%, which was higher by 15.19% and 38. 75% than single treatment with carbendazim and hymexazol, respectively.
出处
《北方园艺》
CAS
北大核心
2010年第7期151-153,共3页
Northern Horticulture
基金
辽宁省自然科学基金资助项目(20052124)
辽宁省教育厅攻关资助项目(2004D218)
关键词
杀菌剂
枯萎病菌
抑制率
,chemical fungicides
Fusarium oxysporum
inhibition
