And now for the bad news. Nothing can be done chemically to control the growth. Culturally yes, but chemically no. Lichen is typically found on lower portions of a tree or shrub and especially in ...

Answer: That orange growth is lichen, not a rust pathogen. Lichen do not harm the tree or shrub in any way. They tend to grow only on that outer bark and stay there, not growing deeper into live ...

Those green-blue growths that you see on tree trunks and branches are not mosses. They are lichens. Lichens are not killing your tree, nor are they causing it to fail. They are telling you ...

Over the course of many years working with trees, hundreds of people have asked me about “that stuff” growing on the bark, or hanging from the branches of trees. What is it? Is it a disease?

British soldier' lichen growing on rock. (Clay Wollney) For the most part, lichens growing on trees is a good thing, not harmful to the trees. However, weak or dying trees may have a lot of ...

For instance, what are those green masses growing on your trees? Those growths could be either lichens, moss or algae, and the good news is that none are cause for alarm. Because they usually grow ...

Very slow progress was made the other day while I was cutting down the remains of a dead oak tree as I kept getting distracted by the diversity of mosses and lichens growing on the dead bark.

The presence of lichen or moss on backyard trees can understandably be concerning at first. Lichen is a combination of algae and fungus that lives on any number of solid, undisturbed surfaces ...

Any reduction in the produce will not be a result of the lichen. It will be due to environmental reasons, pest attack or disease. It could also be due to the tree taking a rest from producing ...

Another non-threatening growth you might find on your trees is something called lichen. Lichen is a curious organism because it exists as a combination of two unrelated organisms: an algae and a ...