Editing Downy mildew (section)

{{Short description|Name for several species of oomycete}}
{{for|the band|Downy Mildew (band)}}
{{infobox plant disease
| name = Downy mildew
| image = Downy and Powdery mildew on grape leaf.JPG
| caption = Example of downy mildew (left) along with [[powdery mildew]] on a grape leaf
| common_names = 
| hosts = plants
| causal_agents = [[oomycete]]s
| vectors = 
| EPPO_codes = 
| distribution = 
| treatment = 
}}
'''Downy mildew''' refers to any of several types of [[oomycete]] microbes that are [[obligate parasite]]s of plants. Downy mildews exclusively belong to the [[Peronosporaceae]] family. In [[commerce|commercial]] [[agriculture]], they are a particular problem for growers of [[Cruciferae|crucifer]]s, [[grape]]s and [[vegetable]]s that grow on vines. The prime example is ''[[Peronospora farinosa]]'' featured in NCBI-Taxonomy<ref>[https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=134698 NCBI-Taxonomy] – ncbi.nlm.nih.gov</ref> and HYP3.<ref>[http://www.inra.fr/Internet/Produits/HYP3/pathogene/6perfar.htm HYP3] – ncbi.nlm.nih.gov</ref> This pathogen does not produce survival structures in the northern states of the United States, and overwinters as live mildew colonies in Gulf Coast states. It progresses northward with [[Cucurbitaceae|cucurbit]] production each spring. Yield loss associated with downy mildew is most likely related to soft rots that occur after plant canopies collapse and sunburn occurs on fruit. Cucurbit downy mildew only affects leaves of cucurbit plants.