{"id":13023,"date":"2019-03-13T19:36:21","date_gmt":"2019-03-13T18:36:21","guid":{"rendered":"https:\/\/www.plantenplagen.nl\/plantenplagen\/rhododendron-blight\/"},"modified":"2023-10-30T15:29:13","modified_gmt":"2023-10-30T14:29:13","slug":"rhododendron-blight","status":"publish","type":"encyclopedia","link":"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/rhododendron-blight\/","title":{"rendered":"Rhododendron Blight"},"content":{"rendered":"

[vc_row][vc_column width=”2\/3″][vc_column_text el_id=”topentry” el_class=”topentry”]Rhodo<\/wbr>dendron Blight is caused by a fungus: flower buds do not open, turn brown and rot under the influence of rain.
\n[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text el_id=”entrytxt” el_class=”entrytxt” css=”.vc_custom_1679649532912{padding-left: 20px !important;}”]Also known as:<\/em>
\nBud blast<\/p>\n

Do not confuse with:<\/em>
\nFrost damage of the buds[\/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=”3609″ 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”]Rhodo<\/wbr>dendron Blight<\/strong> is caused by a fungus (Pycnostysanus azaleae<\/em> or Seifertia azaleae)<\/em>. Flower buds do not open, turn brown and rot under the influence of rain. At a later stage, the brown buds are covered with black fungal dots. The buds remain on the branches.
\nThe fungus is spread by the Rhodo<\/wbr>dendron leafhopper (Graphocephala fennahi)<\/em>, which has been active in Europe since the second half of the last century.
\nThe leafhopper and the larvae themselves do little damage to rhododendrons.<\/p>\n

If not only the flower buds are affected but also leaves, stems and branches then the fungus Botrytis cinerea<\/em>, a variant of gray mold<\/a> is active.[\/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_1679649708346{padding-left: 15px !important;}”]<\/p>\n