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 ...

On a brisk Saturday morning at Bradbury Mountain State Park in Pownal, Maine, Park Ranger Jeff Pengel leads a nature walk he’s titled ‘EnLichenment’. And, puns aside, there’s a lot to see here, once ...

Lichens on stone, those "still explosions" as the great American poet Elizabeth Bishop named them, remain unseen to most, which is remarkable when you consider how commonplace they are. It seems these ...

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 ...

DALLAS, Pa. — You see it everywhere, growing on the ground, on a tree even on your roof! It sometimes looks like strange green ruffes, scales or even stringy clumps. It is called lichen. Paul shares ...