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