Ants are a frequent nuisance on fruit trees. According to the experts at the University of California, ants are likely attracted to the honeydew produced by aphids on the tree. They may also climb the tree to reach ripening fruit or sap coming from wounds in the trunk. You could apply shellac to each tree wound, but you would likely miss some, and you still wouldn’t prevent ants that are trying to reach the honeydew or fruit. By stopping ants from climbing the tree, you can keep them away from your fruit and prevent them from boring holes in the wood, which can kill the tree.
7 Try double-sided adhesive strips used to prevent cats from climbing onto counters. They are available at pet supply stores.Another option is to coat the base of the tree with motor oil or another sticky substance.Avoid spraying the actual fruit tree with chlordane spray.
Replace the contact paper when it loses its adhesive properties. Insects, dirt and rain may affect the paper's stickiness.