Help! This mildew/fungus has already decimated one, I don’t want to lose this too.
by aaaaaaaaaaaacho
Help! This mildew/fungus has already decimated one, I don’t want to lose this too.
by aaaaaaaaaaaacho
2 Comments
Powdery mildew took my begonias too. Cut off all the infected leaves/stems, probably try to do this outside so any spores don’t go airborne. Spray the plants with 70% rubbing alcohol and keep them out of the light until they dry. Monitor and cut off any new powdery mildew spots. Keep treating. Also I’d quarantine the infected. Spray the area down with rubbing alcohol really good where they were to try to get any spores. Keep begonias in places with good air flow like a fan. Humidity is the #1 reason this happens. If they’re in a super humid cabinet, make sure the air is flowing or let in some less humid air.
That’s not powdery mildew. For sure it’s a critter. Possibly spider mites?