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Monitoring of a Single Point Mutation in the PvCesA3 Allele Conferring Resistance to Carboxylic Acid Amide Fungicides in Plasmopara viticola Populations In Yamanashi Prefecture, Japan

Y. Aoki, Y. Kawagoe, N. Fujimori, S. Tanaka, and S. Suzuki

May 2015


Use of the CAA fungicide mandipropamid to manage grapevine downy mildew in vineyards in Japan is increasing because of QoI resistance. However, CAA fungicide resistance in P. viticola is becoming a serious problem. The authors monitored for a mutation confering resistance to mandipropamid in samples collected from four vineyards in Yamanashi prefecture in Japan.


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