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  2. Downy mildew - Wikipedia

    en.wikipedia.org/wiki/Downy_mildew

    Downy mildew refers to any of several types of oomycete microbes that are obligate parasites of plants. Downy mildews exclusively belong to the Peronosporaceae family. In commercial agriculture , they are a particular problem for growers of crucifers , grapes and vegetables that grow on vines.

  3. Bordeaux mixture - Wikipedia

    en.wikipedia.org/wiki/Bordeaux_mixture

    Bordeaux mixture (also called Bordo Mix) is a mixture of copper(II) sulphate (CuSO 4) and quicklime (Ca O) used as a fungicide. It is used in vineyards, fruit-farms, vegetable-farms and gardens to prevent infestations of downy mildew, powdery mildew and other fungi. It is sprayed on plants as a preventive treatment; its mode of action is ...

  4. Plasmopara viticola - Wikipedia

    en.wikipedia.org/wiki/Plasmopara_viticola

    Because of numbers and results like these, downy mildew has been considered the most devastating disease of a filamentous pathogen to affect European vineyards. [ 3 ] [ 2 ] [ 7 ] When comparing three grape producers in Europe, including some fields that were treated with fungicides or other management strategies, the economic losses ranged from ...

  5. Fungicide use in the United States - Wikipedia

    en.wikipedia.org/wiki/Fungicide_use_in_the...

    Downy mildew is an extremely common disease of the lettuce plant. This is largely due to the disease's quick germination period—three hours—and the lettuce plant being susceptible at all growth stages. One study estimated that in untreated Florida fields 75% of lettuce was infected with downy mildew and considered unsalable. [113]

  6. List of grape diseases - Wikipedia

    en.wikipedia.org/wiki/List_of_grape_diseases

    A cartoon from Punch from 1890: The phylloxera, a true gourmet, finds out the best vineyards and attaches itself to the best wines. Punch magazine, 6 Sep. 1890. This is a list of diseases of grapes (Vitis spp.).

  7. Plasmopara halstedii - Wikipedia

    en.wikipedia.org/wiki/Plasmopara_halstedii

    The species is one of many pathogens commonly referred to as downy mildew. [1] P. halstedii originated in North America. Plasmopara halstedii oospores produce a thin wall which are resistant structures, sexually produced that are essential for its continuation. After entering an area, the eradication of the pathogen is difficult due to the ...

  8. Pierre-Marie-Alexis Millardet - Wikipedia

    en.wikipedia.org/wiki/Pierre-Marie-Alexis_Millardet

    He was also responsible for protecting grape vineyards from downy mildew fungus (Plasmopara viticola). He accomplished this feat by implementing a fungicide consisting of hydrated lime, copper sulfate and water, a mixture that was to become known as the "Bordeaux mixture". It was the first fungicide to be used worldwide and is still used today.

  9. Peronospora destructor - Wikipedia

    en.wikipedia.org/wiki/Peronospora_destructor

    Control is by crop rotation (at least 3 years between successive onion crops), use of healthy bulbs for planting (heat treatment has been used to eliminate the pathogen from bulbs), fungicide treatment of the bulbs for planting, and fungicide sprays of the foliage if downy mildew infection is nevertheless observed. [3]

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