Q: Bill, on the bark of my Crepe Myrtles, I noticed grayish growth. I can peel this growth off fairly easily. What is this growth and is it hurting my tree? A: It sounds like you have lichens. Lichens ...

I spoke to a homeowner recently who asked if a gray moss-like growth on limbs and twigs on their trees and shrubs was the primary reason for their decline. Trees and shrubs, however frequently have ...