Name: Daisy I Reno, Nv (Zone 6b) Not all who wander are lost
Hi Mark and to NGA
Those are Lichen on the tree trunk; they are harmless and not hurting the tree at all. Have you ever fertilized your tree? I think what it needs is a good shot of nutrients.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost
President: Orchid Society of Northern Nevada
Webmaster: osnnv.org