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.
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.
tree affected by the Tristeza virus