Q: Bill, on the bark of my Crepe Myrtles, I noticed grayish growth. I can peel this growth off fairly easily. What is this growth and is it hurting my tree? A: It sounds like you have lichens. Lichens ...

By using clearcutting, industrial forestry has caused a large-scale decline of hair lichens in Sweden's forests. In a ...

Elizabeth has worked since 2010 as a writer and consultant covering gardening, permaculture, and sustainable living. She has also written a number of books and e-books on gardens and gardening. Haley ...

Lichens are the curious result of cohabitation between algae and fungi. Biologist Frank Bungartz tells DW about his passion for lichens - and why seeing them disappear should ring alarm bells. DW: You ...