An established infection in the Florida Citrus Industry May 2018 CITRUS CANKER 1 CONTACTS UF/IFAS Citrus Research and Education Center Jamie Burrow 2 Extension Program Manager 863-956-8648 Megan Dewdney, Ph.D. 2 Plant Pathologist 863-956-8651 Lukasz Stelinski, Ph.D. Entomologist 863-956-8851 Evan Johnson, Ph.D. Plant Pathologist 863-956-8649 UF/IFAS Indian River Research and Education Center Mark Ritenour, Ph.D. Postharvest Physiologist 772-468-3922 UF/IFAS Southwest Florida Research and Education Center Ozgur Batuman, Ph.D. Plant Pathologist 239-658-3408 UF/IFAS Extension Offices with Citrus Agents Hardee, Hendry, Highlands, Lake, Polk, St. Lucie, Sumter Websites UF/IFAS Extension Citrus Agents http://citrusagents.ifas.ufl.edu UF/IFAS Citrus REC www.crec.ifas.ufl.edu UF/IFAS Indian River REC http://www.irrec.ifas.ufl.edu UF/IFAS Southwest Florida REC http://www.imok.ufl.edu Local UF/IFAS Extension Office http://solutionsforyourlife.ufl.edu/map/ COMMERCIAL MANAGEMENT • Decontamination of equipment and personnel • Windbreaks • Copper sprays • Stimulate natural defense in young trees • Leafminer control • Defoliation • Tree removal 1. This document is CH199, one of a series of the Plant Pathology Department, UF/IFAS Extension. Original publication date, July 2008. Revised May 2018. Visit the EDIS website at http://edis.ifas. ufl.edu. 2. J. D. Burrow, Extension program manager; and M. M. Dewdney, associate professor, Plant Pathology Department, UF/IFAS Citrus Research and Education Center, Lake Alfred, FL 33850. The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other UF/IFAS Extension publications, contact your county’s UF/IFAS Extension office. U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/ IFAS Extension. CH199 RESIDENTIAL MANAGEMENT • Apply copper every three weeks mid-May to mid-July • Decontaminate lawn tools using one (1) ounce of bleach to one (1) gallon of water. (Do not store bleach-water solution as it will lose effectiveness within 24 hours.) • Prune infected area, double bag infected limbs, and discard in yard waste or • Burn infected plant material • Apply horticultural oil to lower leafminer populations • Do not transport infected plant material!