Tree girdling almost always spells doom for a tree if not caught early and corrected. This common, yet easily overlooked problem happens when something wraps so tightly around a tree (like a girdle), ...

Agricultural experts are warning about a disease, sunblotch viroid (ASBVd), that can severely stunt avocado tree growth.

This photo shows a tree root that is growing above ground and is wrapping around the base of a tree. This is not a normal occurrence for trees. Usually a tree will grow a girdling root or roots after ...

Most plants form symbioses with mycorrhizal fungi since their emergence on land hundreds of millions of years ago. Depending on the availability of carbon (C), these symbioses employ two nutrient ...