Laboratory and field evaluation of spinosad, a biorational natural product, against larvae of Culex mosquitoes

Journal of the American Mosquito Control Association
Yongxing Jiang, Mir S Mulla

Abstract

Spinosad, a fermentation product from the naturally occurring soil actinomycete bacterium Saccharopolyspora spinosa, has been reported to have a high level of activity against phytophagous insects and insects impacting human and animal health. It has low mammalian toxicity and a favorable environmental profile, including low persistence and no toxicity to fish and wildlife at mosquito larvicidal rates. In order to determine the activity and efficacy of spinosad against larvae of Culex mosquitoes, technical powder and liquid formulations of spinosad were tested against mosquito larvae under laboratory and field conditions. In the laboratory, spinosad powder was highly active against 2nd and 4th instars of Culex quinquefasciatus after 24 h of exposure. The extent of mortality increased slightly after 48 h of exposure. Second instars were slightly more susceptible than 4th instars. The liquid formulation showed somewhat higher activity (about 2x) than the technical powder material at both the LCs50 and LC90 levels. In field microcosm tests against natural populations of mosquitoes, the liquid formulation yielded excellent control of immature Culex spp. for 21 days at concentrations of 0.05 mg (AI)/liter and 35 days at 0.1 to 0.5 m...Continue Reading

References

Mar 11, 2004·Medical and Veterinary Entomology·J G BondT Williams
Mar 2, 2006·Journal of the American Mosquito Control Association·Frédéric DarrietJean Marc Hougard

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Citations

Dec 18, 2012·Parasitology Research·Palanisamy Mahesh KumarKadarkarai Murugan
May 23, 2012·Parasites & Vectors·Carlos F MarinaTrevor Williams
Jun 4, 2011·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Sandra A Allan
Mar 25, 2014·Trends in Parasitology·John VontasJanet Hemingway
Jun 15, 2011·Journal of Medical Entomology·Dennis A Infante-RodríguezTrevor Williams
Apr 27, 2012·Journal of the American Mosquito Control Association·Humberto Quiroz-MartínezVioleta Ariadna Rodríguez-Castro
Feb 21, 2014·Journal of the American Mosquito Control Association·Sharon P Lawler, Deborah A Dritz
Feb 15, 2012·Journal of the American Mosquito Control Association·Argentina A Garza-RobledoHumberto Quiroz-Martínez
Apr 12, 2011·Journal of the American Mosquito Control Association·John F AndersonJames J Becnel

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Software Mentioned

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POLO

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