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Duration of larval development of Simulium yahense (Diptera: Simuliidae) under natural conditions
J R Davis1, V K Barbiero, M Trpis
1Department of Immunology and Infectious Diseases, Johns Hopkins University, School of Hygiene and Public Health, Baltimore, Maryland 21205.
Journal of Medical Entomology
|January 1, 1992
Abstract:
The duration of Simulium yahense Vajime & Dunbar larval development on a dam spillway in Harbel, Liberia, was observed to make accurate decisions regarding the frequency of larvicide treatments against this onchocerciasis vector. Larval development required a minimum of 10-12 d from eclosion to first pupation. Initial larvicidal treatment for S. yahense control would require a treatment cycle of 7 d. Once suppression of adult and larval populations is achieved, a 9-12-9-12 day treatment cycle could be adopted.