Reaction to Competition
Like other members of the Juglandaceae family, butternut produces a substance called juglone, a naphthoquinone that is selectively toxic to associated vegetation. Greatest concentrations of juglone are in root tissue and fruit husks with lesser amounts in leaves, catkins, buds, and inner bark (12,13).
Within its optimum range and on good sites, butternut is usually considered a desirable component of forest stands; it has been classed as a "less desirable" tree in southern Appalachian coves (4).
- Burns, Russell M., and Barbara H. Honkala, technical coordinators. 1990. Silvics of North America: 1. Conifers; 2. Hardwoods. Agriculture Handbook 654 (Supersedes Agriculture Handbook 271,Silvics of Forest Trees of the United States, 1965). U.S. Department of Agriculture, Forest Service, Washington, DC. vol.2, 877 pp. http://www.na.fs.fed.us/spfo/pubs/silvics_manual/table_of_contents.htm
No one has provided updates yet.