a plant disease characterized by a superficial white powdery growth on stems and leaves, caused by parasitic ascomycetous fungi of the family Erysiphaceae: affects the rose, aster, apple, vine, oak, etc
2.
any of the fungi causing this disease
Compare downy mildew
powdery mildew in American English
US
1.
any of an order (Erysiphales) of ascomycetous fungi that are parasites on the surfaces of higher plants and produce closed fruiting bodies in a powdery mass
2.
a plant disease caused by a powdery mildew
Examples of 'powdery mildew' in a sentence
powdery mildew
It could also be a symptom of powdery mildew, caused by the dry summer.
The Sun (2016)
It could also be a symptom of powdery mildew, caused by the dry summer.
The Sun (2016)
The best way to keep powdery mildew at bay is to ensure plants are growing healthily.
Times, Sunday Times (2007)
Soon the whole plant was affected by " powdery mildew '.
Christy Campbell PHYLLOXERA: How Wine was Saved for the World (2004)
Some years, it gets powdery mildew.
Times, Sunday Times (2009)
HELP me stop my vine getting powdery mildew.
The Sun (2012)
How can I stop powdery mildew ruining my soft fruits and vegetables?
Times, Sunday Times (2010)
For example, dryness will make some mints susceptible to powdery mildew, a white mould on the leaves and stems.
Stickland, Sue Planning the Organic Herb Garden (1986)
HOW can I stop powdery mildew on my strawberries?
The Sun (2014)
HOW can I stop my climbing honeysuckle getting powdery mildew?
The Sun (2013)
HOW can I rid my sweet peas of powdery mildew?
The Sun (2015)
HOW can I control powdery mildew on a honeysuckle?
The Sun (2015)
HOW can I stop my climbing golden hop getting powdery mildew?
The Sun (2011)
HOW can I stop my clematis getting powdery mildew?