powdery mildew on Begonia
Quick answer
If your Begonia has powdery mildew, the most likely cause is: Begonias suffer from powdery mildew (Erysiphe cichoracearum) causing white powdery patches on leaves, favored by poor air circulation and high humidity with reduced light.
Start here:
- 1. Remove affected leaves immediately at first sign of infection
- 2. Improve air circulation by spacing plants or moving to better-ventilated area
Why Begonia gets powdery mildew
Begonia spp.
Begonias suffer from powdery mildew (Erysiphe cichoracearum) causing white powdery patches on leaves, favored by poor air circulation and high humidity with reduced light.
How to reverse powdery mildew on Begonia
- 1
Remove affected leaves immediately at first sign of infection
- 2
Improve air circulation by spacing plants or moving to better-ventilated area
- 3
Apply fungicide appropriate for powdery mildew on begonias
- 4
Dispose of severely infected plant material to prevent spread
Keep powdery mildew off this Begonia
Space plants adequately for air circulation, avoid overhead watering, and remove fallen debris promptly.