| − | The process of cutting away a ring of inner and outer bark all the way around a tree trunk.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> | + | The process of cutting away a ring of inner and outer bark all the way around a tree trunk.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> Girdling a tree kills it. |