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, ...
A reader wants a column on what causes moss and how to get rid of it. I like the stuff and can’t get enough of it, but I will answer anyhow. I wish it was as simple as telling her to bring it all over ...
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