Description:A fungal disease that first shows as white spots in the underside of older leaves. These may expand to cover both side of the leaf with a white powdery coating. Vine growth stops and leaves may yellow and die. Fruit size is reduced and may be more prone to sunburn.
Species Affected:Apple Cucumbers, Cucumber, Grammas, Marrow, Pumpkin, Rockmelon, Squash, Watermelon.
Biology:Favoured by warm dry conditions.
Life Cycle:Origin and History:
Related and Similar Species:References: