My Rieger begonia seems badly ill, there is some kind of white powder (actually it is not powder since you cannot get rid of it) on most of its leaves. I am afraid it is fungus or some disease.I' ve no idea. Does anybody knows it? what can I do now? OR where can I get medicine for my begonia?:( P.S. I cut off all its leaves just now and Put it far away from all other plants.
Mealy bugs maybe??? It's hard to determine what the problem is without a close-up photo of the leaves that are infected... Anything left with white stuff on it?
I have read where people used Lysol straight out a spray can for this problem, if it is powdery mildew your plant has. You might be able to find other methods on the web specifically for this sometimes begonia problem..
