Patterns of aedes aegypti (Diptera: Culicidae) infestation and container productivity measured using pupal and stegomyia indices in Northern Argentina

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A citywide control program of Aedes aegypti (L.) (Diptera: Culicidae) mainly based on the use of larvicides reduced infestations but failed to achieve the desired target levels in Clorinda, northeastern Argentina, over 5 yr of interventions. To understand the underlying causes of persistent infestat...

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Autores principales: Gürtler, R.E., Garelli, F.M., Espinosa, M.O., Weinberg, D., Coto, H.D., Gaspe, M.S.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2009
Materias:
Aedes aegypti
Dengue transmission risk
Pupal survey
Temephos
Vector control
Clorinda
Culicidae
Diptera
Stegomyia
Aedes
animal
Argentina
article
comparative study
computer simulation
insect
population density
statistics
theoretical model
Animals
Computer Simulation
Models, Theoretical
Population Density
Pupa
Stochastic Processes
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222585_v46_n5_p1176_Gurtler
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paperaa:paper_00222585_v46_n5_p1176_Gurtler2023-06-12T16:44:39Z Patterns of aedes aegypti (Diptera: Culicidae) infestation and container productivity measured using pupal and stegomyia indices in Northern Argentina J. Med. Entomol. 2009;46(5):1176-1186 Gürtler, R.E. Garelli, F.M. Espinosa, M.O. Weinberg, D. Coto, H.D. Gaspe, M.S. Aedes aegypti Dengue transmission risk Pupal survey Temephos Vector control Aedes aegypti Clorinda Culicidae Diptera Stegomyia Aedes animal Argentina article comparative study computer simulation insect population density statistics theoretical model Aedes Animals Argentina Computer Simulation Models, Theoretical Population Density Pupa Stochastic Processes A citywide control program of Aedes aegypti (L.) (Diptera: Culicidae) mainly based on the use of larvicides reduced infestations but failed to achieve the desired target levels in Clorinda, northeastern Argentina, over 5 yr of interventions. To understand the underlying causes of persistent infestations and to develop new control tactics adapted to the local context, we conducted two pupal surveys in a large neighborhood with ≈2,500 houses and recorded several variables for every container inspected in fall and spring 2007. In total, 4,076 lots and 4,267 containers were inspected over both surveys, and 8,391 Ae. aegypti pupae were collected. Large tanks used for potable water storage were the most abundant and the most productive type of container, accounting for 6584% of all the pupae collected. Therefore, large tanks were key containers and candidates for improved targeted interventions. Multivariate analysis showed that containers located in the yard, at low sun exposure, unlidded, filled with rain water, and holding polluted water were all more likely to be infested by larvae or pupae. When only infested containers were considered, productivity of pupae was most closely associated with large tanks and rain water. A stochastic simulation model was developed to calculate the expected correlations between pupal and Stegomyia indices according to the characteristics of the distribution of larvae and pupae per container and the spatial scale at which the indices were computed. The correlation between pupal and Stegomyia indices is expected to increase as infestation levels decline. © 2009 Entomological Society of America. Fil:Gürtler, R.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Garelli, F.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gaspe, M.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222585_v46_n5_p1176_Gurtler
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic Aedes aegypti
Dengue transmission risk
Pupal survey
Temephos
Vector control
Aedes aegypti
Clorinda
Culicidae
Diptera
Stegomyia
Aedes
animal
Argentina
article
comparative study
computer simulation
insect
population density
statistics
theoretical model
Aedes
Animals
Argentina
Computer Simulation
Models, Theoretical
Population Density
Pupa
Stochastic Processes
spellingShingle Aedes aegypti
Dengue transmission risk
Pupal survey
Temephos
Vector control
Aedes aegypti
Clorinda
Culicidae
Diptera
Stegomyia
Aedes
animal
Argentina
article
comparative study
computer simulation
insect
population density
statistics
theoretical model
Aedes
Animals
Argentina
Computer Simulation
Models, Theoretical
Population Density
Pupa
Stochastic Processes
Gürtler, R.E.
Garelli, F.M.
Espinosa, M.O.
Weinberg, D.
Coto, H.D.
Gaspe, M.S.
Patterns of aedes aegypti (Diptera: Culicidae) infestation and container productivity measured using pupal and stegomyia indices in Northern Argentina
topic_facet Aedes aegypti
Dengue transmission risk
Pupal survey
Temephos
Vector control
Aedes aegypti
Clorinda
Culicidae
Diptera
Stegomyia
Aedes
animal
Argentina
article
comparative study
computer simulation
insect
population density
statistics
theoretical model
Aedes
Animals
Argentina
Computer Simulation
Models, Theoretical
Population Density
Pupa
Stochastic Processes
description A citywide control program of Aedes aegypti (L.) (Diptera: Culicidae) mainly based on the use of larvicides reduced infestations but failed to achieve the desired target levels in Clorinda, northeastern Argentina, over 5 yr of interventions. To understand the underlying causes of persistent infestations and to develop new control tactics adapted to the local context, we conducted two pupal surveys in a large neighborhood with ≈2,500 houses and recorded several variables for every container inspected in fall and spring 2007. In total, 4,076 lots and 4,267 containers were inspected over both surveys, and 8,391 Ae. aegypti pupae were collected. Large tanks used for potable water storage were the most abundant and the most productive type of container, accounting for 6584% of all the pupae collected. Therefore, large tanks were key containers and candidates for improved targeted interventions. Multivariate analysis showed that containers located in the yard, at low sun exposure, unlidded, filled with rain water, and holding polluted water were all more likely to be infested by larvae or pupae. When only infested containers were considered, productivity of pupae was most closely associated with large tanks and rain water. A stochastic simulation model was developed to calculate the expected correlations between pupal and Stegomyia indices according to the characteristics of the distribution of larvae and pupae per container and the spatial scale at which the indices were computed. The correlation between pupal and Stegomyia indices is expected to increase as infestation levels decline. © 2009 Entomological Society of America.
format Artículo
Artículo
publishedVersion
author Gürtler, R.E.
Garelli, F.M.
Espinosa, M.O.
Weinberg, D.
Coto, H.D.
Gaspe, M.S.
author_facet Gürtler, R.E.
Garelli, F.M.
Espinosa, M.O.
Weinberg, D.
Coto, H.D.
Gaspe, M.S.
author_sort Gürtler, R.E.
title Patterns of aedes aegypti (Diptera: Culicidae) infestation and container productivity measured using pupal and stegomyia indices in Northern Argentina
title_short Patterns of aedes aegypti (Diptera: Culicidae) infestation and container productivity measured using pupal and stegomyia indices in Northern Argentina
title_full Patterns of aedes aegypti (Diptera: Culicidae) infestation and container productivity measured using pupal and stegomyia indices in Northern Argentina
title_fullStr Patterns of aedes aegypti (Diptera: Culicidae) infestation and container productivity measured using pupal and stegomyia indices in Northern Argentina
title_full_unstemmed Patterns of aedes aegypti (Diptera: Culicidae) infestation and container productivity measured using pupal and stegomyia indices in Northern Argentina
title_sort patterns of aedes aegypti (diptera: culicidae) infestation and container productivity measured using pupal and stegomyia indices in northern argentina
publishDate 2009
url http://hdl.handle.net/20.500.12110/paper_00222585_v46_n5_p1176_Gurtler
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