Pecan Bacterial Leaf Scorch

Randy S. Sanderlin  |  11/1/2016 8:55:36 PM

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Pecan bacterial leaf scorch is common throughout the pecan-producing areas of the southeastern United States. In 2015, this disease was also found in the western pecanproducing states of Arizona, California, and New Mexico (Goldberg 2015).

Pecan bacterial leaf scorch causes defoliation, reduces tree growth (particularly when trees are infected at an early age), and reduces kernel weight. While these factors make this disease unsightly for a homeowner with a few pecan trees, they can have a significant economic impact for a commercial pecan producer. There are no economically effective treatments to eliminate the pathogen from an infected tree. Although pecan bacterial leaf scorch does not kill pecan trees, yield and economic losses can occur.

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