Plant disease

Plant disease

I notices some problems with the foliage on some of my begonias that I took outside. Some of the leaves are getting pea-sized, whitish, flat spots on the leaves. When the white dissapears, it evidently leaves a brown spot on the leaf. The white area looks slightly fuzzy, is it some kind of fungus? What do I do about it? So far it appears to only spread to them, not other plants.
A bright yellow room!

A bright yellow room!

Another question…

Another question…

Not Much….

Not Much….

Blue & Pink

Blue & Pink

Glads again

Glads again

hi im nick

hi im nick