Name: Will Creed NYC Prof. plant consultant & educator
It's hard to tell from the photo, but it may be mealybug, not mold. Strip off the brown section to fully expose the white stuff, Spray it thoroughly with soapy water.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at [email protected]
I now have a book available on indoor plant care
