Fungicide Resistance Mutations to Oxathiapiprolin Display Clade-Specific Occurrence in Pseudoperonospora cubensis, Causal agent of Cucurbit Downy Mildew.
Pseudoperonospora cubensis, the causal agent of cucurbit downy mildew, causes severe annual losses in cucurbit production. Management relies on frequent fungicide applications, with oxathiapiprolin (OXTP; FRAC 49) being a cornerstone of current programs. Because OXTP is classified as high risk for resistance developmen...