To make a graft, the branch and the scion must be of similar thickness. The idea is to join their cambium layers--that thin, all-important layer just below the bark that conducts water and nutrients. ...

On what was once their family’s farm, Walter “Beau” Clark IV and his stepson, Bob Thompson, are the sole full-time employees of Walter E. Clark & Son Inc., a company that has sold tree wound dressing, ...