{"id":12353,"date":"2018-10-06T11:06:17","date_gmt":"2018-10-06T09:06:17","guid":{"rendered":"https:\/\/www.plantenplagen.nl\/plantenplagen\/powdery-mildew\/"},"modified":"2024-01-13T12:55:02","modified_gmt":"2024-01-13T11:55:02","slug":"powdery-mildew","status":"publish","type":"encyclopedia","link":"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/powdery-mildew\/","title":{"rendered":"Powdery mildew"},"content":{"rendered":"

[vc_row][vc_column width=”2\/3″][vc_column_text el_id=”topentry” el_class=”topentry”]Powdery mildew, one of the different species of Ascomycete fungi which affects a wide range of plants.[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text el_id=”entrytxt” el_class=”entrytxt” css=”.vc_custom_1671373292008{padding-left: 20px !important;}”]Do not confuse with:<\/em>
\nDowny mildew<\/a>[\/vc_column_text][\/vc_column][\/vc_row][vc_row gap=”35″ css=”.vc_custom_1532162142715{background-color: #e6e6e6 !important;}”][vc_column width=”1\/2″][vc_single_image image=”2065″ img_size=”medium” add_caption=”yes” style=”vc_box_rounded” onclick=”img_link_large”][\/vc_column][vc_column width=”1\/2″ css=”.vc_custom_1532162092980{background-color: #e6e6e6 !important;}”][vc_column_text el_class=”entrytxt”]Powdery mildew<\/strong> – one of the different species of the sac fungi (Ascomycete strain)<\/em> which affects a wide range of plants. Causes powdery spots, which later cover the entire plant.
\nAscomycota phylum<\/em> causes powdery mildew on apple trees.
\nA variant is sunflower mildew (Sphaerotheca fusca)<\/em> that can affect cucumber<\/a>, zucchini<\/a> and endive<\/a> in dry summers with temperatures above 20°C.
\nThe variant (Sphaerotheca pannosa)<\/em> affects roses. For the “powdery mildew” on oaks, the fungus Mycrosphaera alphitoides<\/em> is responsible, also belonging to Ascomycetes strain.<\/em>
\nOther members of the Ascomycetes strain<\/em> cause powdery mildew on maple<\/a> trees.
\nPowdery mildew mainly grows at temperatures between 20 ℃ and 30 ℃ with moist air, such as dew.
\nThe orange ladybird<\/a> (Halyzia sedecimguttata)<\/em> feeds on powdery mildew. This ladybird is common in Europe. They are found on ash<\/a> and maple trees in forests.
\nFungi of the group Erysiphales<\/em> – an order also belonging to the sac fungi (ascomycetes)<\/em> – causes a form of powdery mildew on carrots<\/a> and wheat. The fungus Erysiphe polygoni<\/em> causes powdery mildew in beets.
\nThe fungus Leveillula<\/em> is also one of the species of the sac fungi (Ascomycete strain)<\/em> which affects a wide range of plants.
\nThe powdery mildew fungus Podo<\/wbr>sphaera fusca<\/em> is a constant threat to cucurbits<\/a> (Cucurbitaceae)<\/em>.<\/p>\n

Both Downy mildew and Powdery mildew primarily affect the leaves. Downy mildew – belonging to the Peronosporaceae<\/em> family – can be recognized by the fungal layer on the underside of the leaf and the associated leaf spots on the top of the leaf. Powdery mildew, on the other hand, causes white, powdery fungus growth in the absence of any leaf spotting.[\/vc_column_text][\/vc_column][\/vc_row][vc_row equal_height=”yes”][vc_column width=”1\/3″][vc_custom_heading text=”Where to find” font_container=”tag:h4|text_align:center|color:%23ffffff” google_fonts=”font_family:Lato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic|font_style:400%20regular%3A400%3Anormal” css=”.vc_custom_1537946500082{background-color: #536895 !important;}”][vc_column_text el_id=”entrytxt” el_class=”entrytxt” css=”.vc_custom_1671381398862{padding-left: 15px !important;}”]<\/p>\n