Tree help

[jenkuh]

We have a large oak tree in our front yard. Since we moved here (5 years ago) I've noticed that when it rains almost the entire trunk turns green. Also, I've noticed more dead branches this year. I'm not sure what to do about it or even who I'd call to help. Any ideas as to what it is and what to do about it? : It's an amazing tree!

[lightheart]

Is the green a moss that perks up with the added moisture?

by dead branches, do you mean big branches or the little ones, if the larger trunks are dying then that is not as good.

Have you distubed the roots in the time you have lived ther, heavy digging around the base or the area under the tree that canopycovers?

What to do, find someone local that knows trees and have them come take a look would be your best bet, here's a good place to start your search, International Society of Arboriculture has a search feature under where the triangle shows up to seach for a certified arborist by area.
http://www.isa-arbor.com/certificati...ification.aspx

[Aubergine68]

Our oak turns green when it rains, too. I've always rather enjoyed it -- we live in a dryish climate and I like the look of mossy. Certainly, it never worries me.

[Hibou]

We seem to have the same thing on our maples, especially near the bases, and it does seem highlighted by the rain. I would prune dead branches in the spring or fall, but the moss doesn't seem to harm the trees.