Houzz Logo Print

How do I treat powdery mildew and potenital leaf spot on my begoinas?

Crystal Ransom
3 years ago
last modified: 3 years ago

I recently discovered powdery mildew on my Begonia Maculata Wightii. I'm SO upset! I have wanted this plant for so long and I finally got one from Etsy. Not even a month after receiving it, I discovered the mildew. I also think it may have leaf spot. There is no way I am able to take a healthy cutting, but the plant is still putting out new leaves so I hope I can rescue it!

My Begonia Maculata Wightii was sitting next to my Begonia China Curl. I know, I probably should have quarantined the new plant, but we live and learn I suppose. I have started to see reddened spots on the China Curl, so I believe I need to treat this one for powdery mildew and leaf spot as well.

I am particularly interested in using homemade fungicide to treat. I have read that a potassium bicarbonate solution is great for killing and preventing all kinds of plant ailments. Does anyone have a go to recipe for homemade fungicide? I am especially interested in those using potassium bicarbonate since I already have it on hand, but I will take any advice I can get!

Thanks for your help!

Comments (7)

Sotheby Floors, Inc.
Average rating: 5 out of 5 stars1 Review
One-Stop-Shop for All of Your Floor Coverings Needs in Virginia