Troubleshooting
Equal-Wing Begonia problems — and how to fix them
Equal-Wing Begonia (Begonia isoptera) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Fungal leaf spot (Botrytis / Cercospora)
Wet foliage and poor air circulation encourage leaf spotting; always water at the base and ensure good ventilation around the plant.
Mealybugs
Mealybugs congregate in leaf axils and on stems; remove visible colonies with a cotton swab dipped in rubbing alcohol and treat persistent infestations with insecticidal soap.
Prevent equal-wing begonia problems before they start
Most equal-wing begonia issues are care-mismatch, not bad luck. Dial in the basics:
Equal-Wing Begonia problems — FAQ
Why is my equal-wing begonia fungal leaf spot (botrytis / cercospora)?
Wet foliage and poor air circulation encourage leaf spotting; always water at the base and ensure good ventilation around the plant.
Why is my equal-wing begonia mealybugs?
Mealybugs congregate in leaf axils and on stems; remove visible colonies with a cotton swab dipped in rubbing alcohol and treat persistent infestations with insecticidal soap.