Catharine Mannion

Title - Associate Professor

Department - Entomology & Nematology

Specialty - Ornamental Plant Entomology

Telephone - 305-246-7001 Ext. 22

E-maill -

Web site -


  • Ph.D., 1992: University of Florida, Gainesville, FL - Entomology and Nematology
  • M.S., 1988: North Carolina State University, Raleigh, NC - Entomology and Plant Pathology (minor)
  • B.S., 1983: University of California, Davis, CA - Biological Sciences


  • Associate Professor (7/2007 to present), University of Florida, Tropical Research and Education Center
  • Assistant Professor (6/2000 to 6/2007), University of Florida, Tropical Research and Education Center
  • Associate Investigator - Entomologist (2/1996 to 5/2000), Tennessee State University, Nursery Crop Research Station, McMinnville, TN
  • Field Research and Development (12/1993 to 1/1996), Rohm and Haas Company, Tifton, GA
  • Postdoctoral Research Entomologist (8/1992 to 12/1993), USDA-ARS, Insect Biology Lab, Tifton, GA
  • Research Associate (1983 to 1986), Plant Genetics, Inc., Davis, CA


  • 60% Research
  • 40% Extension

Areas of Expertise

  • Integrated pest management of insect pests in commercial production of ornamental plants and the landscape with an emphasis on invasive and/or regulatory pests.

Active Projects

  • Diaprepes abbreviatus - Diaprepes root weevil
  • Singhiella simplex - ficus whitefly
  • Myllocerus undecimpustulatus - Sri Lanka weevil
  • Paratachardina pseudolobata - lobate lac scale
  • Aulacaspis yasamatsui - cycad scale
  • Scirtothrips dorsalis - chilli thrips

Awards & Recognitions

  • IFAS Interdisciplinary Extension Team Award, 2001
  • Warren Wood Dade County Agri-Council Fellowship, 1991/92
  • Scholarship grant, Florida Entomological Society, 1991
  • Mini-grant, Florida Entomological Society, 1991
  • Warren Wood Dade County Agri-Council Fellowship, 1990/91
  • Mini-grant, Florida Entomological Society, 1990
  • Best student presentation (2nd place), Florida Entomological Society, 1991
  • Best student paper (2nd place), Entomological Society of America 1990
  • Best student presentation (2nd place), Florida Entomological Society, 1990
  • Robert T. Gast Award for best Ph.D. research paper, Entomological Society of America, Southern Branch, 1990
  • Best poster display, University of Florida, Graduate Student Forum, 1990
  • President's prize for best poster presentation, Entomological Society of America, 1989

Selected Publications

Referred Journal Articles

  • Mannion, C., A. Hunsberger, J. Pena, L. Osborne. 2001. Oviposition and larval survival of Diaprepes abbreviatus (Coleoptera: Curculionidae) on different host plants. Florida Entomologist (submitted).
  • Oliver, J. B. and C. M. Mannion. 2001. Ambrosia beetle (Coleoptera: Scolytidae) species attacking chestnut and captured in ethanol-baited traps in Middle Tennessee. Environ. Entomol. 30(5):909-918.
  • Mannion, C., W. McLane, M. Klein, and J. Oliver. 2001. Management of early instar Japanese beetle in field-grown nursery crops. J. Econ. Entomol. 94(5):1151-1161.
  • Mannion, C., W. McLane, M. Klein, D. Nielsen, and D. Hermes. 1999. Insecticide dips for control of Japanese beetle and other soil-infesting white grubs in B&B nursery stock. J. Environ. Hort. 18(2):89-93.
  • Mannion, C., Winkler, H., D. Shapiro, and T. Gibb. 1999. Interaction of halofenozide and entomopathogenic nematodes for control of Japanese beetle grubs. J. Econ. Entomol. 93(1):48-53.


  • Oliver, J. B. and C. M. Mannion. Ambrosia beetles collected from ethanol-baited traps and Chinese chestnut in middle Tennessee. Proceedings of SNA Research Conference 46.
  • Fare, D. C., C. Mannion, J. Oliver, and S. Mullican. 2000. Flatheaded apple tree borer infestations on newly planted male liners. Proceedings of SNA Research Conference. 45:153-157.

Extension and Newsletters

  • Mannion, C. 2001. Diaprepes root weevil. The Grapevine, the voice of the Dade FNGA Chapter 6(9).
  • L. S. Osborne, E. A. Eliason, C. M. Mannion, and J. F. Price. Commercial foliage and woody ornamental arthropod pest management. EDIS
  • Vail, K. M., F. Hale, H. E. Williams, and C. M. Mannion 1999. The Japanese beetle and its control Univ. of Tennessee Extension PB 946.