What kind of tree is this and what is wrong with this it?
I think this might be a crabapple tree. This year is has white spots all over the branches and I now see some on the leaves. The white spots are powdery, and when I rub it between my fingers, it produces a reddish-orange color. The tree has also been weeping a sticky substance and therefore attracting lots in insects! Thanks for advance for your assistance! Ashley Bedard
Hennepin County Minnesota
I believe your tree has wooly aphids. The sticky substance is called honeydew. It is the excretion of the aphids. Here is information: http://www.extension.umn.edu/garden/insects/find/woolly-aphids-on-trees-and-shrubs/