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Related to mildew: Black mold


name for certain fungi and protists, for the diseases they cause in various crops, and for the discoloration (and sometimes the weakening and disintegration) they cause in such materials as leather, fabrics, and paper. The powdery mildews usually grow on the surface of plant tissues, forming a gray or white coating and absorbing nourishment from the host. Although traditionally considered fungi, the downy mildews are now more often considered protists. They attack grapes, cucumbers, potatoes, and other vegetables. Methods of making fabrics and leather resistant to mildew have been devised. For the occurrence and control of mildews in agriculture, see diseases of plantsdiseases of plants.
Most plant diseases are caused by fungi, bacteria, and viruses. Although the term disease is usually used only for the destruction of live plants, the action of dry rot and the rotting of harvested crops in storage or transport is similar to the rots
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. Powdery mildews are classified in the kingdom FungiFungi
, kingdom of heterotrophic single-celled, multinucleated, or multicellular organisms, including yeasts, molds, and mushrooms. The organisms live as parasites, symbionts, or saprobes (see saprophyte).
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, phylum (division) Ascomycota; downy mildews are classified in the kingdom ProtistaProtista
or Protoctista
, in the five-kingdom system of classification, a kingdom comprising a variety of unicellular and some simple multinuclear and multicellular eukaryotic organisms.
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, phylum (division) Oomycota.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the infection of plants with diseases similar to downy mildew, which is caused by fungi of the order Peronosporales. In Soviet literature the term “mildew” is conventionally used to designate only downy mildew of grapes.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A whitish growth on plants, organic matter, and other materials caused by a parasitic fungus.
Any fungus producing such growth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


A fungus that grows and feeds on paint, cotton and linen fabric, etc., which are exposed to moisture; causes discoloration and decomposition of the surface.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Always read the entire label before you use a cleaner or a paint fortified against mildew and algae, and follow safety precautions.
FUNGUS AMONG US: Crimson Kings can become susceptible to attack by mildew after periods of dry weather
The ability to use inexpensive sequencing techniques to identify thousands of markers and associate them with desired traits has already resulted in four newly released varieties in France with two powdery mildew and two downy mildew genes (see "Is Europe Starting to Embrace Hybrid Wine Grapes?" Wines & Vines, August 2018).
The post Ministry to evaluate damage to grapes affected by downy mildew appeared first on Cyprus Mail .
Among seventy chilli genotypes screened none of them were found Immune (I) to powdery mildew disease.
The early season CD 215 cultivar, which is susceptible to downy mildew and soybean rust and moderately susceptible to powdery mildew and LSDs, was used.
coli O157:H7 numbers increased 1,000- fold more in downy mildew lesions than on healthy lettuce leaf tissue," Brandl explains.
The downy mildew was the first disease that started after renewal vegetation of alfalfa.
No onetime treatment will permanently rid you of a mildew problem--a deck is outdoors after all.
"The Slip-Slide Misadventure of Mildew Goo" is a rhythmic fable deftly told by R.
It is also guaranteed to worK "continuously to inhibit the growth of bacteria, mould and mildew," which is all very good but I do not suffer from bacteria, mould or mildew.
To do so would likely increase the powdery mildew or introduce a more destructive fungus.