{"id":13887,"date":"2018-09-01T18:10:31","date_gmt":"2018-09-01T16:10:31","guid":{"rendered":"https:\/\/www.plantenplagen.nl\/plantenplagen\/phytophthora\/"},"modified":"2023-12-17T12:08:33","modified_gmt":"2023-12-17T11:08:33","slug":"phytophthora","status":"publish","type":"encyclopedia","link":"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/phytophthora\/","title":{"rendered":"Phytophthora"},"content":{"rendered":"

[vc_row][vc_column width=”2\/3″][vc_column_text el_id=”topentry” el_class=”topentry”]Phytophthora<\/em> recognizable by the black spots in on the foliage of potatoes and tomatoes.
\n[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text el_id=”entrytxt” el_class=”entrytxt” css=”.vc_custom_1702811307671{padding-left: 20px !important;}”]Also known as:<\/em>
\nPink rot (potato<\/a>, carrot<\/a>)
\nLate Blight<\/a> (potato, tomato<\/a>)
\nPhytophthora root rot (rhododendrons, azaleas, rose<\/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=”1301″ 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”]Phytophthora<\/strong> (Phytophthora infestans)<\/em>. The characteristic black spots in on the foliage of potatoes and tomatoes is caused by a water fungus. Water fungi are fungal microorganisms. Phytophthora<\/em> hibernates on leftover plant debris and in the soil. Infection occurs through insects, spores carried with wind and rain, and splashing water. During periods of summer hot and humid weather, Phytophthora<\/em> can cause extensive damage in a short period of time. In rhododendrons and azaleas, phytophthora causes curling leaves and discoloration of leaves, bark and the roots. Phytophthora<\/em> can cause root rot in roses that have only been planted for a few months. Roses grown in very wet soil or substrate are especially susceptible to infestation. Pythium root rot causes similar damage.
\nIn silver firs (e.g., Nordmann fir<\/a>), Phytophthora<\/em> causes root rot, causing the tree to dry out and die.
\nPhytophthora ramorum<\/a><\/em> causes SOD (Sudden O<\/wbr>ak Death).[\/vc_column_text][\/vc_column][\/vc_row][vc_row equal_height=”yes”][vc_column width=”1\/3″ css=”.vc_custom_1532102781238{background-color: #ffffff !important;}”][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_1532165393091{background-color: #536895 !important;}”][vc_column_text el_id=”entrytxt” el_class=”entrytxt” css=”.vc_custom_1691239688726{padding-left: 12px !important;}”]<\/p>\n

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Infested po<\/wbr>tato, photo: Agricultural Research Service – CC Public Domain<\/figcaption><\/figure>\n