|FGCA > Conservation of Genetic Diversity > Species at Risk > Butternut|
Butternut (Juglans cinerea L.)
Information on butternut and the butternut canker in Canada
Butternut canker attacks and kills butternut trees of all ages and sizes and on all sites. The fungus (Sirococcus clavigignenti-juglandacearum) attacks the inner bark of the tree and causes cankers. Cankers spread around the branches and trunk from season to season, girdling the tree and eventually killing it.
Butternut canker has become a serious threat to the survival of butternut across North America. The species has all but disappeared in many parts of the U.S.A. and is under threat in Ontario, Quebec, and New Brunswick.
Report Your Butternut Trees
Please consider reporting your butternut trees to the FGCA
Seeking Native Butternut Seeds
We are always looking for seed from healthy native trees - But how can you tell if yours is native or not? This note can help you determine if your tree is a native butternut by showing you what is NOT native.
Many people want to plant butternuts but it takes planning to do well - this note can help
Butternut Information for Landowners