Downy mildew caused by Pseudoperonospora cubensis causes severe losses in commercial cucurbit crops. Chemical control is hampered by emergence of pathogen resistance to several fungicides. Genetic analyses by the Quesada laboratory at NC State found that different clades of P. cubensis vary for the predominant mutations conferring resistance. These findings of clade-specific resistances can facilitate the design of more effective fungicide programs tailored to crop and region.
For further reading:
- Carboxylic Acid Amide but Not Quinone Outside Inhibitor Fungicide Resistance Mutations Show Clade-Specific Occurrence in Pseudoperonospora cubensis Causing Downy Mildew in Commercial and Wild Cucurbits.
by: K. N. D’Arcangelo, E. C. Wallace, T. D. Miles, and L. M. Quesada-Ocampo
Published in Phytopathology 113(1):80-89 on January 12, 2023.