Powdery mildew management.
Systematic drought can promote powdery mildew infection!
How to avoid this?
✓ Avoid regular drought, ✓ Avoid water dripping,
✓ Avoid hanging baskets above the begonia, ✓ Avoid too high air humidity (RH %),
Avoid water dripping
✓ Avoid too big difference in
temperature and air humidity.
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