Gardeners and homeowners often contact our Horticulture Hotline at Cornell Cooperative Extension in Oriskany when they notice a grayish blue-green crusty or mossy looking growth on trees, shrubs, ...

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 ...

Now that the majority of our deciduous plants have dropped their leaves, you may notice gray growths on the trunks of some trees and shrubs in your landscape. Most likely, these are lichens, which, ...

A couple of people have recently asked if the grey moss-like growth on the limbs and twigs of their trees and shrubs is the primary source of their decline. Trees and shrubs often have this sporadic ...

Do you have trees or shrubs with trunks and branches covered with gray-green crusty growths? These growths — called lichens — are harmless and do not cause plants' poor growth or decline. Lichen is an ...

I've noticed a mossy growth on the crepe myrtles, roses and oak trees in my yard. Can you tell me what it is? What you are looking at on your plants is called lichen. Lichens are moss-like organisms ...

Gardeners who move here from other parts of the country often are amazed at how fast our landscapes develop and mature. With our long, warm growing season, fertile soil and generous rainfall, rapid ...

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 ...

An oak tree in my yard has a large growth on it. It doesn’t seem to be hurting the tree, but should I be concerned? — B.I. It sounds like you are describing what is known as a burl. Burls are round or ...

NACOGDOCHES, Texas (KTRE) - Often, I get the inquiry about that “green and grey fungus that is killing my tree.” At this time of the year when most leaves are off trees and shrubs, these growths are ...

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EAST TEXAS (KLTV/KTRE) - Often is heard, “That green and grey fungus is killing my tree! See there? It’s all over those limbs!” The “fungus” referred to is probably lichen. Lichens are often blamed ...