Toxicity of fenvalerate to five unfed species of tabanids and engorged Tabanus fuscicostatus Hine (Diptera: Tabanidae)

Publication Type:Journal Article
Year of Publication:1989
Authors:M. D. Zyzak, Leprince, D. J., Byford, R. L., Foil, L. D.
Journal:Journal of Entomological Science
Volume:24
Pagination:572-578
Date Published:1989
Keywords:Control, Insecticide, Louisiana, Tabanidae, Tabanus americanus, Tabanus fuscicostatus, Tabanus lineola, Tabanus pallidescens, USA
Abstract:

The toxicity of topically applied fenvalerate for five Tabanus species (including T. lineola and T. wilsoni) was determined on a per fly and per weight basis. The LD-50’s ranged from 0.0086 to 0.0816 mu-g/fly for Tabanus fuscicostatus and T. americanus, respectively. The LD-50’s in mu-g/fly weight ranged from 0.156 for T. americanus to 0.404 for T. pallidescens. Blood-engorged T. fuscicostatus were less susceptible to topical application of fenvalerate than unfed individuals.

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith