Cargando…

The Presence of Flour Affects the Efficacy of Aerosolized Insecticides used to Treat the Red Flour Beetle, Tribolium castaneum

Experiments were conducted in tightly sealed pilot scale warehouses to assess the efficacy of common aerosolized insecticides on all life stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) when exposed in dishes containing 0 to 2 g of wheat flour either under pallets or out in the op...

Descripción completa

Detalles Bibliográficos
Autores principales: Toews, Michael D., Campbell, James F., Arthur, Franklin H.
Formato: Texto
Lenguaje:English
Publicado: University of Wisconsin Library 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3029336/
https://www.ncbi.nlm.nih.gov/pubmed/21268701
http://dx.doi.org/10.1673/031.010.19601
_version_ 1782197223221624832
author Toews, Michael D.
Campbell, James F.
Arthur, Franklin H.
author_facet Toews, Michael D.
Campbell, James F.
Arthur, Franklin H.
author_sort Toews, Michael D.
collection PubMed
description Experiments were conducted in tightly sealed pilot scale warehouses to assess the efficacy of common aerosolized insecticides on all life stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) when exposed in dishes containing 0 to 2 g of wheat flour either under pallets or out in the open. Petri dishes containing 0, 0.1, 1, or 2 g of flour were prepared with 25 eggs, 3(rd) instars, pupae, or adults and then immediately treated with aerosolized solvent, Pyrethrins, or esfenvalerate. Twenty-four h after insecticide exposure, the dishes were brought to the laboratory and placed in a growth chamber and held for a 3 day moribund (knockdown) assessment and a 21 day mortality assessment. Mortality in untreated controls was generally less than 10%, with the exception of the 21 day counts of adults and eggs. Solvent-treated replications followed similar trends, except that additional mortality was observed in exposed larvae and pupae. In the insecticide-treated dishes, mortality of T. castaneum provisioned with flour generally showed a linear decrease with increasing flour deposits. Regardless of life stage, mortality did not exceed 60% when individuals were exposed in petri dishes containing 2 g of flour. Exposure location also made a significant difference in observed mortality. While mortality never exceeded 75% in dishes positioned under pallets, there was never less than 80% mortality in dishes exposed in the open. Although there was a perceptible increase in mortality with esfenvalerate compared to Pyrethrins, these differences were considerably less than the variation observed among flour deposits. The study suggests that sanitation and preparation prior to aerosol insecticide treatments were more important than choice of a particular insecticide.
format Text
id pubmed-3029336
institution National Center for Biotechnology Information
language English
publishDate 2010
publisher University of Wisconsin Library
record_format MEDLINE/PubMed
spelling pubmed-30293362012-02-09 The Presence of Flour Affects the Efficacy of Aerosolized Insecticides used to Treat the Red Flour Beetle, Tribolium castaneum Toews, Michael D. Campbell, James F. Arthur, Franklin H. J Insect Sci Article Experiments were conducted in tightly sealed pilot scale warehouses to assess the efficacy of common aerosolized insecticides on all life stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) when exposed in dishes containing 0 to 2 g of wheat flour either under pallets or out in the open. Petri dishes containing 0, 0.1, 1, or 2 g of flour were prepared with 25 eggs, 3(rd) instars, pupae, or adults and then immediately treated with aerosolized solvent, Pyrethrins, or esfenvalerate. Twenty-four h after insecticide exposure, the dishes were brought to the laboratory and placed in a growth chamber and held for a 3 day moribund (knockdown) assessment and a 21 day mortality assessment. Mortality in untreated controls was generally less than 10%, with the exception of the 21 day counts of adults and eggs. Solvent-treated replications followed similar trends, except that additional mortality was observed in exposed larvae and pupae. In the insecticide-treated dishes, mortality of T. castaneum provisioned with flour generally showed a linear decrease with increasing flour deposits. Regardless of life stage, mortality did not exceed 60% when individuals were exposed in petri dishes containing 2 g of flour. Exposure location also made a significant difference in observed mortality. While mortality never exceeded 75% in dishes positioned under pallets, there was never less than 80% mortality in dishes exposed in the open. Although there was a perceptible increase in mortality with esfenvalerate compared to Pyrethrins, these differences were considerably less than the variation observed among flour deposits. The study suggests that sanitation and preparation prior to aerosol insecticide treatments were more important than choice of a particular insecticide. University of Wisconsin Library 2010-11-10 /pmc/articles/PMC3029336/ /pubmed/21268701 http://dx.doi.org/10.1673/031.010.19601 Text en © 2010 http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Toews, Michael D.
Campbell, James F.
Arthur, Franklin H.
The Presence of Flour Affects the Efficacy of Aerosolized Insecticides used to Treat the Red Flour Beetle, Tribolium castaneum
title The Presence of Flour Affects the Efficacy of Aerosolized Insecticides used to Treat the Red Flour Beetle, Tribolium castaneum
title_full The Presence of Flour Affects the Efficacy of Aerosolized Insecticides used to Treat the Red Flour Beetle, Tribolium castaneum
title_fullStr The Presence of Flour Affects the Efficacy of Aerosolized Insecticides used to Treat the Red Flour Beetle, Tribolium castaneum
title_full_unstemmed The Presence of Flour Affects the Efficacy of Aerosolized Insecticides used to Treat the Red Flour Beetle, Tribolium castaneum
title_short The Presence of Flour Affects the Efficacy of Aerosolized Insecticides used to Treat the Red Flour Beetle, Tribolium castaneum
title_sort presence of flour affects the efficacy of aerosolized insecticides used to treat the red flour beetle, tribolium castaneum
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3029336/
https://www.ncbi.nlm.nih.gov/pubmed/21268701
http://dx.doi.org/10.1673/031.010.19601
work_keys_str_mv AT toewsmichaeld thepresenceofflouraffectstheefficacyofaerosolizedinsecticidesusedtotreattheredflourbeetletriboliumcastaneum
AT campbelljamesf thepresenceofflouraffectstheefficacyofaerosolizedinsecticidesusedtotreattheredflourbeetletriboliumcastaneum
AT arthurfranklinh thepresenceofflouraffectstheefficacyofaerosolizedinsecticidesusedtotreattheredflourbeetletriboliumcastaneum
AT toewsmichaeld presenceofflouraffectstheefficacyofaerosolizedinsecticidesusedtotreattheredflourbeetletriboliumcastaneum
AT campbelljamesf presenceofflouraffectstheefficacyofaerosolizedinsecticidesusedtotreattheredflourbeetletriboliumcastaneum
AT arthurfranklinh presenceofflouraffectstheefficacyofaerosolizedinsecticidesusedtotreattheredflourbeetletriboliumcastaneum