please help me, I have a gorgeous dwarf umbrella tree, (indoor plant), for some reason it is losing leaves and full branches rapidly. looks like there are very small brownish spots on stems. any suggestions. Thanks

Dwarf umbrella (Schefflera arboricola) is often a very fragile plant - much more so than Schefflera actinophylla. Overpotting and overwatering are the two most common problems with this particular plant. If you repotted it recently, it may be doomed.

Do you have a photo of it?