Show black blac it knot treatment in plums and cherries the only effective treatment for or black knot in plum and cherry trees la Is to cut out and carefully burn all the knots destroy entirely any trees that are badly infested this disease spreads so rapidly that quick work la Is needed to save cle clean in trees it Is believed that hat a fungicidal spray like lime sulphur or bordeaux at dormant strength before growth starts la Is a safeguard for the clean trees but th the a knots themselves must he be burned and careful watch kept during the alie season to catch any just starting when handling these chesl knots use canvas gloves ind LIO do not ejot touch the knots or gloves on loan lenn parts of alp tree tre |