title: Duration of larval development of Simulium yahense (Diptera: Simuliidae) under natural conditions.
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.
authors.affiliation: Department of Immunology and Infectious Diseases, Johns Hopkins University, School of Hygiene and Public Health, Baltimore, Maryland 21205.
authors.forename: J R
authors.initials: JR
authors.lastname: Davis
authors.forename: V K
authors.initials: VK
authors.lastname: Barbiero
authors.forename: M
authors.initials: M
authors.lastname: Trpis
mesh_terms: D000818:Animals; D005260:Female; D005618:Fresh Water; D007303:Insect Vectors / Q000254:growth & development*; D007814:Larva / Q000254:growth & development; D009855:Onchocerciasis / Q000635:transmission*; D010058:Oviposition; D012843:Simuliidae / Q000254:growth & development*; D013997:Time Factors