Definition of powdery mildew in English:

powdery mildew

noun

  • [mass noun] Mildew on a plant which is marked by a white floury covering consisting of conidia.

    Compare with downy mildew
    • ‘This is the season when powdery mildew, late blight and other fungal diseases arrive.’
    • ‘The most common viticultural problems are downy mildew, powdery mildew, botrytis bunch rot, soil erosion, and occasional spring frost in the east of the country.’
    • ‘The most common diseases to affect roses are black spot, powdery mildew, and rust, but many disease-resistant roses are available.’
    • ‘Watch for fuzzy white spots on leaves, signaling powdery mildew.’
    • ‘Hydrangea foliage is also susceptible to leaf spots and powdery mildew.’
    • ‘There are several fungal diseases that like roses, the most common being blackspot and powdery mildew.’
    • ‘The responses of haploid and diploid plants to powdery mildew were identical.’
    • ‘Select disease-resistant varieties and divide the plants every few years to reduce the chance of powdery mildew.’
    • ‘In southeast and south central Nebraska, leaf and stripe rusts, powdery mildew and Septoria leaf blotch are the most common and important foliar diseases.’
    • ‘Disease problems can include powdery mildew, Botrytis blight, aster yellows, leaf spots, viruses and foliar nematodes.’
    • ‘The more common ones are powdery mildew, blackspot, downy mildew and rust.’
    • ‘Of course the cooler temperatures may also result in a greater incidence of fungus diseases such as powdery mildew.’
    • ‘This could invite powdery mildew or other types of fungus to grow on your plants.’
    • ‘So far, there has been success reported on the use of milk to control powdery mildew on a variety of different plants.’
    • ‘Both powdery mildew and downy mildew often infect squash plants as autumn nights grow cooler and dew keeps the foliage moist through the night.’
    • ‘Occasional epidemics of angular leaf spot, powdery mildew and charcoal rot or dry rot have been experienced.’
    • ‘Some southern pea varieties are susceptible to mosaic viruses, powdery mildew, and leaf spot diseases.’
    • ‘Roses deficient in potassium, phosphorous and magnesium are more susceptible to attack by black spot and powdery mildew.’
    • ‘The fungi causing powdery mildew, leaf rust, Stagonospora, and Septoria diseases may infect the leaves at this time.’
    • ‘Grape powdery mildew, for example, is different from rose powdery mildew.’