大阪府におけるシュンギク葉枯病菌のベノミル剤およびQoI剤に対する感受性

抄録

Thirty isolates of Cercospora chrysanthemi were collected from garland chrysanthemum fields in Osaka Prefecture and their sensitivity to benomyl and azoxystrobin (QoI) was evaluated. For benomyl, 83% and 8% of the isolates collected in 2016–2017 and 2021–2023, respectively, were resistant. For azoxystrobin, 100% and 50% of the isolates collected in 2016–2017 and 2021–2023, respectively, were resistant. The QoI sensitivity may have been influenced by its application to another disease.