Example of Downy mildew (left) along with powdery mildew on a grape leaf

Downy mildew refers to any of several types of oomycete microbes that infect plants. Powdery mildew is a fungal disease that affects a wide range of plants Oomycetes also known as Water molds (or water moulds: see spelling differences) are a group of filamentous unicellular Heterokonts physically Based on phylogenetic evidence, downy mildew is most closely related to brown algae. In commercial agriculture, they are a particular problem for growers of crucifers, grapes and vine-type vegetables. Commerce is a division of trade or production which deals with the exchange of goods and services from producer to final consumer Agriculture refers to the production of goods through the growing of plants and fungi and the raising of domesticated Animals The study of agriculture A crucifer is in some Christian churches (particularly the Roman Catholic Church, the United Methodist Church and the Anglican Communion, as well as on For the Tokyo University supercomputer see Gravity Pipe. GRAPE, or GRA phics P rogramming E nvironment is The term " vegetable " generally means the edible parts of Plants The definition of the word is traditional rather than Scientific, however

The prime example is Peronospora farinosa featured in NCBI-Taxonomy and HYP3. Peronospora farinosa is a plant pathogen commonly called downy mildew

Hop Downy Mildew (caused by Pseudoperonospora humuli) is specific to hops (Humulus lupulus. Pseudoperonospora humuli is a plant pathogen Hops are the female Flower cones of the hop plant ( Humulus lupulus) The disease is the single most devastating disease in Western United States hopyards, since the fungus thrives in moist climates. Infected young hop bines become stunted with thickened clusters of pale curled leaves. These spikes have a silvery upper surface, while the undersides of leaves become blackened with spores. These dwarfed spikes are called "basal spikes". 'Lateral' or 'terminal' spikes occur further up the bine. An entire hop crop could be devastated in only a few days.

Similarly, cucurbit downy mildew (caused by Pseudoperonospora cubensis) is specific to cucurbits (e. Pseudoperonospora cubensis is a species of Water mould known for causing Downy mildew on cucurbits such as cantaloupe cucumber pumpkin squash g. , cantaloupe, cucumber, pumpkin, squash, watermelon and other members of the Cucurbitaceae/gourd family). The disease is one of the most important diseases of cucurbits worldwide.

See also

• Blue mold
• Pseudoperonospora cubensis

This water mould-related article is a stub. Blue mold is a downy mildew disease of Tobacco that is caused by Peronospora tabacina, a fungus-like protist in the family Peronosporaceae. Pseudoperonospora cubensis is a species of Water mould known for causing Downy mildew on cucurbits such as cantaloupe cucumber pumpkin squash Oomycetes also known as Water molds (or water moulds: see spelling differences) are a group of filamentous unicellular Heterokonts physically You can help Wikipedia by expanding it.

• SAFECROP - Proceedings of the 5th International Workshop on Grapevine Downy and Powdery Mildew