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Based on 20,000+ analyzed cases
stem rot on Begonia
Quick answer
If your Begonia has stem rot, the most likely cause is: Begonia stems develop soft, mushy areas at base due to Botrytis (Botrytis cinerea) fungal disease, favored by excessive moisture, poor air circulation, and cool temperatures.
Start here:
- 1. Remove and dispose of infected leaves immediately at first sign
- 2. Improve air circulation by spacing plants adequately
Why Begonia gets stem rot
Begonia spp.
Begonia stems develop soft, mushy areas at base due to Botrytis (Botrytis cinerea) fungal disease, favored by excessive moisture, poor air circulation, and cool temperatures.
How to reverse stem rot on Begonia
- 1
Remove and dispose of infected leaves immediately at first sign
- 2
Improve air circulation by spacing plants adequately
- 3
Reduce humidity around affected plants
- 4
Apply appropriate fungicide if infection spreads
Keep stem rot off this Begonia
Increase air circulation, avoid overwatering, and remove fallen debris promptly.
Other Begonia problems
Same Problem on Other Plants
Frequently Asked Questions
What causes stem rot on Begonia?
Begonia stems develop soft, mushy areas at base due to Botrytis (Botrytis cinerea) fungal disease, favored by excessive moisture, poor air circulation, and cool temperatures.
How do I fix stem rot on Begonia?
Remove and dispose of infected leaves immediately at first sign. Improve air circulation by spacing plants adequately.
How do I keep stem rot from coming back on Begonia?
Increase air circulation, avoid overwatering, and remove fallen debris promptly.