Fusarium wilt outbreak advice needed

[KatKate]

Publishing here an example of a worse case. Again, roots are fine but the stem with roots are more than suspicious. Moreover a young leaf was growing nicely until It stopped and became dry on the edges... green color on roots is brilliant green that has anti fungal properties, does not dry anything, just thought why not try it. The roots were already crooked like that upon discovery. The suspicion started when I saw that the blooming stem Started drying promptly from the base....