How to Manage Pests

Pests in Gardens and Landscapes

First-year pruning

Cut back walnut trees after planting to promote vigorous shoot growth. Newly planted trees should be headed back to 4 or 5 buds above the bud union, about 15 to 24 inches from the ground. Remove obvious crossing limbs and suckers. As the trees begin to grow in spring, the uppermost shoot should be trained up a stake until it reaches 4 to 5 feet. At that point, the leader should be headed back to encourage side branching. The side branches that develop from the headed leader will become the primary scaffold limbs. These should be developed during the first summer growing season. Use care when staking the tree. Tie firmly but recheck occasionally to see that the ties are not too tight, girdling the tree.

First pruning

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2014 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance.

Agriculture and Natural Resources, University of California

Accessibility   /PMG/GARDEN/FRUIT/CULTURAL/walnutfirst.html revised: April 25, 2014. Contact webmaster.