Pathogen isolation of strawberry wilt and the indoor toxicity of 13 fungicides
In this study,a pathogenic strain of Fosarium oxysporum was isolated from the dis-eased rhizome of strawberry wilt.Growth rate method was used to determine the indoor toxicity of 13 fungicides against this strain.The results showed that prochloraz and metconazole had the highest in-hibitory activities against Fusarium wilt,with EC50 values of 0.051 mg/L and 0.060 mg/L,respec-tively.Flusiazole and prothioconazole followed,with EC50 values 0.304 mg/L and 0.382 mg/L,re-spectively.The EC50 values of epoxiconazole,pyraclostrobin,difenoconazole,hexaconazole,azoxys-trobin,boscalid,trifloxystrobin,myclobutanil and fluopicolide against F.oxysporum were 0.535 mg/L,0.622 mg/L,0.725 mg/L,1.206 mg/L,1.239 mg/L,1.378 mg/L,1.462 mg/L,1.651 mg/L and 2.024 mg/L,respectively.All the above agents could be used as effective agents to control Fusarium wilt in strawberry production.
万方数据
维普
