They typically present as pale green or gray (or sometimes orange) crusty or leafy masses on tree branches and trunks, rotting logs and wood fences.

Green mold on trees? Hearing cicadas? Missing lightning bugs? Learn about the latest concerns in central Ohio and get your ...

DEAR EMAILER: Green masses growing on tree trunks or branches could be lichens, moss or algae. Lichens are unsightly organisms that look menacing but in reality cause no harm.

We just moved to Jacksonville from up north and I want to know if Spanish moss is harming my oak trees. There is also some kind of gray-green moss growing on the trunks. Let’s talk about Spanish ...

Even though the homeowner didn't ask for these pieces of advice, they are helpful. Homeowner gets unexpected warnings after sharing photo of front yard issue: 'Recently noticed' first appeared on The ...

Algae, lichens and moss often form green or grey, powdery or mossy, crusty growths on the stems, branches and trunks of trees and shrubs. Pictured here, lichen and moss.

This is an abundant and conspicuous lichen found on hardwood tree trunks everywhere around here. It is large, usually somewhat circular, and has a distinctive yellowish-green color (when wet ...

During the recent long, rainy period I noticed a green moss on the trunk of one of our oaks that grows in a mostly shady area. Perhaps this is what you've seen on your trees. If so, it's typically ...

It’s nothing to worry about. Our environment is favorable for many moss and lichen growths on tree trunks. Here is some more information for you to read up on these interesting organisms.