The Cooperative Extension Plant Clinic can provide information on scale insect control, urban tree care, and other ...

As a forester, I often get asked tree health questions, and one involves flat blotches of stuff growing on well-established ...

Dawn Brennan inspects the bark of a tree covered in several different lichens during a Lichen in the Winter World walk held by the Glacier Institute around Apgar in Glacier National Park on ...

A rare lichen has been transplanted by hand after the Lake District tree it was living in blew over. Lungwort - Lobaria pulmonaria - used to be widespread in England but is now found in only a few ...