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  2. Powdery mildew - Wikipedia

    en.wikipedia.org/wiki/Powdery_mildew

    Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales . Powdery mildew is one of the easier plant diseases to identify, as the signs of the causal pathogen are quite distinctive.

  3. Erysiphe alphitoides - Wikipedia

    en.wikipedia.org/wiki/Erysiphe_alphitoides

    Only young developing leaves are susceptible to colonisation by E. alphitoides.It only induces necrosis when infection occurs very early during leaf development. Because the pathogen develops late in spring, after the first leaves of oak seedlings have developed, it is more prevalent on the second and third flushes of leaves that develop in July and August.

  4. Erysiphe cruciferarum - Wikipedia

    en.wikipedia.org/wiki/Erysiphe_cruciferarum

    The powdery mildew initially appears as white, powdery spots formed on leaf surfaces, shoots, and sometimes flowers or fruits. Over time, the spots spread over a larger area of leaves and stems. Eventually, leaves infected with powdery mildew may turn yellow in color and proceed to die or fall off.

  5. Why you should take steps if you see a grayish powder ... - AOL

    www.aol.com/news/why-steps-see-grayish-powder...

    That’s powdery mildew, a fungus that affects a wide range of fruits, vegetables and flowers, coating their leaves, stems, blossoms and, in severe cases, entire plants. It isn’t pretty.

  6. Plant disease - Wikipedia

    en.wikipedia.org/wiki/Plant_disease

    Powdery mildew, a biotrophic Ascomycete fungus. Most phytopathogenic fungi are Ascomycetes or Basidiomycetes. They reproduce both sexually and asexually via the production of spores and other structures. Spores may be spread long distances by air or water, or they may be soil borne.

  7. Fungicide use in the United States - Wikipedia

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

    Powdery mildew causes a white powdery growth to cover the leaves of the hot pepper plant. These leaves may drop prematurely and as with bacterial spot can then cause sunscald. [110] This disease has been known to cause yield losses as high as 50–60% in untreated fields. [111] The prime fungicide used to control powdery mildew is myclobutanil.

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  9. Erysiphe syringae - Wikipedia

    en.wikipedia.org/wiki/Erysiphe_syringae

    There are methods to treat powdery mildew using home-made preparations including fresh milk, which contains the active anti-pathogenic compound lecithin. [9] Lecithin is recognized by the European Union as a treatment for powdery mildews diseases and is commonly available in the soy-derived formulation ‘soy lecithin’. [ 10 ]

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