Environmental Entomology (1982) 11, 456-460

L.W. Timmer, R.F. Lee, J.C. Allen and D.P.H. Tucker (1982)
Distribution of sharpshooters in Florida citrus groves
Environmental Entomology 11 (2), 456-460
Abstract: The distribution of sharpshooter species (Homoptera: Cicadellidae)was determined in Florida citrus groves to assess their role as possible vectors of citrus blight. In trap placement studies, Homalodisca coagulata (Say) was most frequently captured at 2 to 3 m above ground, Oncometopia nigricans (Walker) at 1 to 2 m, and H. insolita (Walker) at <1.0 m. The side of the tree on which the trap was placed had less effect on capture of these three species. Populations of O. nigricans and H. coagulata peaked in late spring and early summer, but H. coagulata became active somewhat late in the spring and was active longer during the summer. O. nigricans was active year-round in the Southeast Flatwoods, but was inactive in winter in the Ridge area in the center of the state. Populations of O. nigricans were 5 to 10 times higher in South and Southeast Flatwoods, where citrus blight is the most common, than in the North Ridge or the Central-South Ridge areas. Populations of H. coagulata were 2 to 3 times higher in the North Ridge area than in the Central-South Ridge or the South and Southeast Flatwoods.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Richard F. Lee

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Citrus blight	Citrus (genus)	U.S.A. (SE)
	Oncometopia nigricans	Citrus (genus)	U.S.A. (SE)
	Homalodisca vitripennis	Citrus (genus)	U.S.A. (SE)
	Homalodisca insolita	Citrus (genus)	U.S.A. (SE)