Tube wilt is a disease affecting treants that is carried by tiny spores in the soil which can get into the trunk. Once inside the treant, they grow into a fungus that feeds on the heartwood, the most tube-rich area of the treant, and cause rotting to occur. This is very painful for the treant and will cause death in a few months, the trunk too weak to support the weight of the branches.
- ↑ James Butler, Elizabeth T. Danforth, Jean Rabe (1994). Elminster's Ecologies (Cormanthor). (TSR, Inc), pp. 26–27. ISBN 1-5607-6917-3.