Crown, stem, and root rots are fungal diseases triggered by humidity, wet leaves, soggy soil, poor air flow. Symptoms: mushy stems, brown/black spots (dead tissue), black roots, wilting even when soil is damp.
Cut out diseased parts. Spray commercial fungicide. Organic: 1–2 tbsp baking soda + 1–2 tsp mineral oil in spray bottle of water; shake, spray all surfaces.

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