Black Stem on Jalapeno: Likely Fungus, Not Fatal

Blackened stem sections at branch points often indicate a minor fungal issue. Leaves stay green; plant continues growing.

Management

• Spray with copper-based fungicide or neem oil.
• Avoid overhead watering.
• Improve air circulation.
• Monitor; usually doesn't affect yield.

If it spreads rapidly or leaves yellow, treat more aggressively.