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UF/IFAS Citrus Research and Education Center

UF/IFAS Citrus Research and Education Center


Citrus Pest Management | PMA 5205
3 Credits | Prerequisite: ENY 3005 (or equivalent)

Citrus Pest Management (PMA 5205) will be offered for the Spring 2023 term at the University of Florida/IFAS Citrus Research and Education Center (CREC) in Lake Alfred and via distance education at the Department of Entomology and Nematology in Gainesville. Additional distance education sites and sections will be established at UF-IFAS Research and Education Centers on request. Citrus Pest Management is a graduate-level course (3.0 units) for students and citrus industry personnel working in the area of pest management. The course reviews the latest tactics and strategies available to manage diseases and arthropod, nematode and weed pests of citrus. Emphasis is given to techniques by which pest and disease organisms are monitored and how this information is used to effectively manage pests with the least risk to the environment.

The course is taught by experts in each area and is coordinated by Dr. Larry Duncan, University of Florida/IFAS, Professor of Nematology. University credit (3.0) or audit credit.  CEUs will be offered.

  • Course Specifics


    Wednesdays, Aug. 23 – Dec. 13 , 2023; 3 - 6 p.m. (8-10 period)


    University of Florida/IFAS Citrus Research and Education Center
    Ben Hill Griffin, Jr. Citrus Hall
    Teaching Lab (Room 109)
    700 Experiment Station Road
    Lake Alfred, Florida

    Tel. (863) 956-1151

    University of Florida/IFAS Department of Entomology and Nematology
    Bldg. 970
    Rm. 1031


    Textbook and References

    Citrus Health Management (APS Press) (optional text). research publications, Review Articles, DPI circulars (provided), Florida Citrus Production Guide, Compendium of Citrus Diseases (APS Press)


    Midterm and Final examinations will each comprise 25% of the grade. Weekly quizzes (10-15 minutes) will be worth 35%. Presentation will be worth 15%.


    Students must complete the registration procedures outlined at This site contains an option for non-degree students with step by step instructions and explanations. Non-degree students are encouraged to visit the site in advance of registration. For registration assistance, please contact Ms. Feenix Hartell (352-273-3912; For additional information about the class contact Dr. Larry Duncan (863-956-1151;


  • Course Topics
    • Identification and biology of citrus pests and diseases
    • Pest and disease monitoring
    • Ecological and economic principles as a basis for pest management
    • Economic thresholds and pest management models
    • Integrated pest management in citrus
    • AND - The evolution of Citrus IPM in the era of citrus greening
  • Course Schedule






    Principles of IPM (Stelinski)




    Principles of IPM Part 2 (Stelinski)




    Managing aboveground pests (Diepenbrock)




    Weed management (Kanissery)





    Introduction to Insecticides  (Diepenbrock)




    Arthropod-transmitted plant pathogens (Killiny)




    Lab (Stelinski, Diepenbrock, Kanissery, KIlliny) Aboveground diagnosis






    Managing soilborne diseases (Dewdney)




    Managing soilborne nematodes and arthropods. (Duncan)





    Managing soilborne nematodes and arthropods. (Duncan)




    Managing foliar diseases and HLB part 1 (Dewdney) 




    Managing foliar diseases and HLB part 2 (Dewdney)




    Thanksgiving Holiday




    (Dewdney/KanisseryDuncan) weeds/root pests/diseases and foliar disease diagnosis



    Class Projects



    Final Exam