G. S. Nuessly

(70% Research, 30% Extension)

1. Education

• B.S., University of California, Irvine (Biology), 1978
• M.S., University of California, Riverside (Entomology), 1981
• Ph. D., Texas AandM University (Entomology), 1986

2. Employment

• Assistant Professor (1989-present) University of Florida
• Research Entomologist, GS-12 (1988-1989), USDA, ARS, Riverside, CA
• Research Entomologist, GS-11 (1986-1988), USDA, ARS, Riverside, CA
• Teaching / Research Assistant (1981-86), Texas AandM University

3. Research Responsibilities

• Investigate spatial distribution, seasonal phenology, developmental rates, and damage thresholds of pest and beneficial arthropods on vegetables and associated crops grown on muck and sand soils.
• Evaluate biological, chemical and cultural control tactics, and host plant resistance in cooperation with scientists of other crop breeding and protection disciplines to develop integrated pest management programs.
• Arthropods pests of pepper, eggplant, cabbage and related crucifers, sweet corn, and lettuce are under study.

Extension Responsibilities

• Diagnose arthropod pest problems in vegetables and for local homeowners; evaluate available control strategies; communicate and demonstrate research findings to growers through field days, newsletters, and other communiques; educate growers, students, general public and other clientele about entomology and general agriculture through seminars, workshops, field tours, and invited talks.

4. Accomplishments

• Documented development of resistance in localized Liriomyza trifolii populations to registered pesticides.
• Co-developed insecticide resistance management program for L. trifolii in vegetables.
• Discovered two previously undocumented fungal pathogens of Plutella xylostella in south Florida.
• Documented development of Bt-k resistance in local P. xylostella populations.
• Identified wild and cultivated host plants of silverleaf whitefly and thrips species attacking vegetables in Palm Beach and Martin Counties.This information used by growers when planning weed management and cultivation strategies.

5. Grants and Contracts(Total $85,000 over last 5 years)

• PI - Peanut Check-off 1990, Abbott Laboratories 1991-1993
• Agridyne Technologies, American Cyanamid 1990-1992
• CibaGeigy, DowElanco 1991-1992
• DuPont 1991-1993
• Ecogen 1991-1993
• FMC 1992
• Merck 1992-1994
• Miles 1991-1992
• Rhome Poulenc 1992-1993
• Rohm-Haas 1992-1994
• Sandoz 1991-1992.
• Co PI - Florida Tomato Exchange 1990
• Florida Celery Exchange 1991-1992
• Florida Lettuce Foundation 1991
• Green Cay Farm 1992
• South Bay Growers 1994.

6. Career Publications

• Refereed papers:24
• Miscellaneous papers:30

7. Selected Publications

• Nuessly, G. S. and R. D. Goeden.1983. Spider predation on Coleophora parthenica (Lepidoptera: Coleophoridae), a moth imported for biological control of Russian thistle.Environ. Entomol. 12: 1433-1438.
• Nuessly, G. S. and R. D. Goeden.1984.Rodent predation on larvae of Coleophora parthenica (Lepidoptera: Coleophoridae), a moth imported for the biological control of Russian thistle.Environ. Entomol. 13: 502-508.
• Nuessly, G. S. and W. L. Sterling.1987.Distribution of 32P in laboratory colonies of Solenopsis invicta (Hymenoptera: Formicidae) after feeding on labeled Heliothis zea (Lepidoptera: Noctuidae) eggs:An explanation of discrepancies encountered in field predation experiments.Environ. Entomol. 15: 1279-1285.
• Nuessly, G. S., T. J. Henneberry and H. H. Perkins.1989. Effect of sweetpotato whitefly population density on cotton fiber stickiness and quality.Proc. Beltwide Cotton Production and Research Conference, Nashville, TN.pp. 281-284.
• Nuessly, G. S., A. W. Hartstack, J. A. Witz and W. L. Sterling.1991. Dislodgment of Heliothis zea (Lepidoptera: Noctuidae) eggs from cotton due to rain and wind: a predictive model.Ecological Modeling 55: 89-102.
• Bethke, J. A., G. S. Nuessly, T. D. Paine and R. A. Redak.1991. Effect of host insect-host plant associations on selected fitness components of Encarsia formosa (Gahan)(Hymenoptera: Aphelinidae). Biological Control 1: 164-169.
• Nuessly, G. S. and R. T. Nagata.1994. Differential probing response of serpentine leafminer, Liriomyza trifolii (Burgess), on cos lettuce.J. Entomol. Sci.(in press).
• Nuessly, G. S. and W. L. Sterling1994. Mortality of Helicoverpa zea (Lepidoptera: Noctuidae) eggs in cotton as a function of oviposition sites, predator species, and desiccation.Environ. Entomol.(in press).
• Leibee, G. L., R. K. Jansson, G. Nuessly and J. L. Taylor.1994. Efficacy of emamectin benzoate and Bacillus thuringiensis on diamondback moth in cabbage in Florida.Fla. Entomologist.(in press).