Downy mildew of mellon
Downy mildew first appears as small, pale green to yellow, angular spots delimited by leaf veins that give the foliage a mottled appearance. Eventually the spots coalesce and the leaf will turn brown. During moist weather, the lower surface of the leaf may be covered with a white to purple growth. Older leaves become infected first.
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Presence among species
|Pseudoperonospora cubensis||Cucumis melo (Ensembl Plants release-51)|