Fusarium
How to get rid of the fungus
The symptoms of an infestation by Fusarium fungi manifest themselves differently in different plant species. Possible symptoms: Lightening, yellowing or curling of leaves, rot on the roots, discolored leaf vessels, white-pink mold, wilting (often only on one side of the plant and in nests in the crop).
Treatment
In the case of acute infestation, only the removal of all infested plant parts will help. Resistant varieties or grafted plants can be used for long-term protection. You can also treat the seeds with chamomile tea. You should also adhere to cultivation breaks and crop rotation rules.
Jerzy Opioła, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons