*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Lichen on Eastern red cedar (Juniperus) Q • My maple and river birch have this silvery-green fungus growing on the bark. Is it ...

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 ...

What came first, the dying branches or the ball moss? A number of gardeners credit the ball moss seen on declining live oak branches as the cause of the decline. The truth is that the ball moss is on ...

Q: Have you ever heard of roof-washing? I had an offer to wash my roof and remove lichen, mold and algae, for $900. The man claimed the lichen will ruin the roof, and he has chemicals to remove it.

Lichen use trees and shrubs only for support, supplying their food via photosynthesis and the fungus gathers the water and other needed nutrients. This lichen has folds that resemble a crumpled sheet.