Lichens, which consist of a fungus and an algae or cyanobacteria growing together, are a common sight on tree trunks and other outdoor surfaces. Far from being harmful, they have a number of practical ...

Q: A fungus-like growth is all over trees in the neighborhood. It’s a pastel blue-gray-green color, sometimes flat and sometimes frilly, and it coats much of the bark on some trunks. I worry urban ...

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 dreary "gray all day" ...

Question: Please help! I just noticed that my wild plum tree in my backyard has some sort of fungus growing on it. Is there anything I can do, or is it diseased beyond repair? It was healthy this ...

Some folks think lichen is bad for their trees. Those people can be spotted standing out in the hot sun picking little gray-green tufts off their tree trunks like a woodpecker hunting for bugs. But it ...

When people notice lichens on their trees, shrubs and other plants, they become concerned that they have problems. But they shouldn’t worry, says LSU AgCenter plant scientist Raj Singh. “Lichens are ...

Several trees in my yard have flat, gray and green scale-like growth on the bark; is this something bad? The growth observed on the trees is lichen. Lichen is actually composed of two different ...

They go by names like smooth blue jellyskin, scaly dog-pelt, bumpy rim, bloody-cored beard, frosty saucer and yellow- glow wart. They are lichens, some of Earth’s most amazing organisms. Chances are ...

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 ...

Q: The pictures are of a ginkgo tree that is completely covered with this fungus. It was also on our Encore azaleas and some older oak trees and other shrubs. We lost all our azaleas, some other ...

Last Saturday, we had our first snowfall signaling the arrival of winter and the end of the growing season. However, winter is the time when lichens really strut their stuff. Margaret Roach wrote in ...