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 ...

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, ...

Oak wilt is a fungal disease that kills oak trees, spreading through the roots of the interconnected trees. We are about to enter the prime susceptibility time of year (Feb. 1 through June 30), so ...

Lichens are nearly everywhere — odd growths that appear as crusty patches and splotches on tree trunks, limbs, rocks, bare soil, stone walls, tombstones, wooden fences. Regardless, lichens often get ...

As the early morning sunlight lasers over the horizon, autumn tumbles in amid flurries of fluttering leaves, glowing golden, orange-y, and scarlet. Fall has arrived, yet the weather remains quite warm ...