powdery mildew

1. Any of various plant diseases caused by fungi, especially of the family Erysiphaceae, that produce powdery conidia on the host surface.

2. A fungus causing such a disease.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

powdery mildew

1. (Plant Pathology) 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. (Plant Pathology) any of the fungi causing this disease

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

pow′dery mil′dew

1. any of various fungi of the ascomycete order Erysiphales that produce a powderlike film of mycelium on the surface of host plants.

2. the plant disease caused by powdery mildew.

[1885–90, Amer.]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

powdery mildew - any of various fungi of the genus Erysiphe producing powdery conidia on the host surface

Erysiphe, genus Erysiphe - genus of powdery mildews

mildew - a fungus that produces a superficial (usually white) growth on organic matter

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References in periodicals archive

You could also try a milk/water 30/70 solutionwhich is commonly used to manage powdery mildew on cucumbers and courgettes.

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"What has happened to my lovely Acer?" Funnily enough, a few days before this email question arrived, I had passed the sender's house and noticed that the lovely Crimson King maple tree in their front garden had been attacked by powdery mildew.

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If your vine crops always get powdery mildew or your roses are susceptible to black spot, begin spraying those plants early in the season with one of the OMRI-listed fungicides.

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Spray of hope Keep roses blemish free this summer by spraying them with Sulphur-Rose, which is a brilliant tonic and the natural enemy of blackspot and powdery mildew. It is not a pesticide and plants can be sprayed all year round.

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If temperature does not rise beyond 35 degree celsius immediately the chances of spectrum diseases including Powdery Mildew and Fruit Pedicel outbreak are very much there" he explained.

Hailstorm damaged mango more than rain in South Punjab; says Director MRI

They also examined the effect of powdery mildew on wine made from the unsprayed hybrid grape type Gm 8622-3.

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For disease resistance, this meant tossing out any plants that showed powdery mildew or downy mildew infections at the seedling stage during the first year of growth.

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They can sometimes be effected by powdery mildew, a white fungus that greatly reduces their vigour, so ask for mildew-resistant varieties.

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The rose performed well in field trials with resistance to black spot and powdery mildew. Being from the Prairies, it is hardy for Zone 3, and features repeat blooming and glossy foliage that contrasts well with the scarlet blooms.

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In this study a hyperspectral imager was used to detect wheat powdery mildew with considering the impacts of wheat ears and the leaves under shadow to identify infected and healthy plant leaves.

Detection of Wheat Powdery Mildew by Differentiating Background Factors using Hyperspectral Imaging