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, ...

We have had a lot of damage showing up on our trees this past year after consecutive years of drought and last year’s ice storm. This damage especially is noticeable right now when the leaves are off ...