The 2005 ESA Annual Meeting and Exhibition
December 15-18, 2005
Ft. Lauderdale, FL

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Friday, December 16, 2005 - 8:30 AM
0327

The use of fungal pathogens to control the glassy-winged sharpshooter, Homalodisca coagulata (Homoptera: Cicadellidae)

Kirphton Fray, kirphton1fray@famu.edu1, Lambert H. B. Kanga, lambert.kanga@famu.edu1, Walker Jones, wjones@weslaco.ars.usda2, Richard Humber, rah3@cornell.edu3, and David W. Boyd, dboyd@ars.usda.gov4. (1) Florida A&M University, Entomology/CESTA, Center for Biological Control, 406 Perry-Paige Bldg, Tallahassee, FL, (2) USDA-ARS, Beneficial Insects Research Unit, 2413 E. Highway 83, Weslaco, TX, (3) USDA-ARS, Plant Protection Research Unit, US Plant, Soil and Nutrition Laboratory, Ithaca, NY, (4) USDA, ARS, P.O. Box 287, 306 S. High St, Poplarville, MS

An epizootic of fungal diseases on glassy-winged sharpshooters was examined in Poplarville, Mississippi. Trichothecium roseum, Beauveria bassiana, and Paecilomyces fumosorus were isolated and identified from the cadavers of the sharpshooter bearing conidiophores, but these fungi appeared to be either secondary pathogens or saprobes rather than primary pathogens of the sharpshooter. Pseudogibellula formicarum was the cause of epizootic of diseases. In laboratory studies, P. Formicarum (109 spores per ml) caused 91% fungal infection 21d after treatments. Sharpshooters were also found to be a suitable host for Metarhizium anisopliae (50% fungal infection 14 d after treatment at 108 spores per ml). Overall, these fungi could provide new avenues for the biological control of the glassy-winged sharpshooter and complement current control strategies


Species 1: Hemiptera Cicadellidae Homalodisca coagulata (Glassy-Winged Sharpshooter)
Keywords: Biological control, Pierce's disease

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