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How to Manage Pests

Pests in Gardens and Landscapes

Tristeza disease complex

Citrus trees infected with tristeza show light green foliage, poor growth flushes, and some leaf drop. The trees may produce a heavy crop of small fruit because girdling at the bud union prevents starch transport to the roots. Diseased young trees bloom early and abundantly and begin producing fruit 1 to 2 years before healthy ones do.

Life cycle

Solutions

Management of the tristeza complex depends largely on preventative measures, such as using tolerant rootstocks and tristeza-free propagation material. Disease spread cannot be prevented completely.

Citrus tree
Citrus tree affected by the Tristeza virus


Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2009 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 How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. /PMG/GARDEN/FRUIT/DISEASE/tristeza.html revised: June 29, 2009. Contact webmaster.