Comparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses

Abstract Background Bluetongue virus (BTV) and epizootic hemorrhagic disease virus (EHDV) are orbiviruses that can cause fatal vector-borne diseases in white-tailed deer (Odocoileus virginianus). Trapping methods for collecting potential Culicoides vectors of orbiviruses were compared to optimize su...

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Autores principales:	Michael Becker, Jeong-Seok Park, Glen Gentry, Claudia Husseneder, Lane Foil
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Bluetongue virus Culicoides Epizootic hemorrhagic disease virus White-tailed deer Infectious and parasitic diseases RC109-216
Acceso en línea:	https://doaj.org/article/cf83a96a2d5d4167acc45947577486c2
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spelling	oai:doaj.org-article:cf83a96a2d5d4167acc45947577486c22021-11-08T10:57:17ZComparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses10.1186/s13071-021-05059-91756-3305https://doaj.org/article/cf83a96a2d5d4167acc45947577486c22021-11-01T00:00:00Zhttps://doi.org/10.1186/s13071-021-05059-9https://doaj.org/toc/1756-3305Abstract Background Bluetongue virus (BTV) and epizootic hemorrhagic disease virus (EHDV) are orbiviruses that can cause fatal vector-borne diseases in white-tailed deer (Odocoileus virginianus). Trapping methods for collecting potential Culicoides vectors of orbiviruses were compared to optimize surveillance studies. Methods The number of captured midges and the virus infection rates of midge pools were compared for dry ice-baited Centers for Disease Control and Prevention (CDC) traps with or without black light. The number of individual midges of different Culicoides species captured at different crepuscular and nocturnal periods using rotator traps also was determined. The number of species/specimens of Culicoides was measured using five different trap methods including three animal-baited methods, a CDC trap with black light, and a CDC trap with no light. Results In trial one, there was no significant difference (P = 0.37) in the proportion of BTV-infected flies caught in traps with light compared to traps without light. However, there was a significant difference (P = 0.026) for EHDV-infected flies, and 89% were captured in traps with light. In trial two, more specimens of C. debilipalpis were captured in the morning hours (06:00–08:00) than in the evening hours (18:00–20:00). For trial three, the animal-baited traps did not capture any species of Culicoides that were not captured in the CDC light traps. There was no significant difference (P = 0.22) in total specimens captured among all five trap types. Conclusions Specimens of Culicoides infected with BTV were not repelled by light traps in the first trial, while the majority of the specimens positive for EHDV were caught in traps with light. For the second trial, specimens of C. debilipalpis were most abundant during early morning hours, and thus spray applications of insecticides for control of that species may be more effective at sunrise rather than sunset. For objective three, no animal-baited trapping method collected different species of midges when compared to the CDC traps with light, which is unlike certain studies conducted in other geographical regions. Graphical abstractMichael BeckerJeong-Seok ParkGlen GentryClaudia HussenederLane FoilBMCarticleBluetongue virusCulicoidesEpizootic hemorrhagic disease virusWhite-tailed deerInfectious and parasitic diseasesRC109-216ENParasites & Vectors, Vol 14, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Bluetongue virus Culicoides Epizootic hemorrhagic disease virus White-tailed deer Infectious and parasitic diseases RC109-216
spellingShingle	Bluetongue virus Culicoides Epizootic hemorrhagic disease virus White-tailed deer Infectious and parasitic diseases RC109-216 Michael Becker Jeong-Seok Park Glen Gentry Claudia Husseneder Lane Foil Comparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses
description	Abstract Background Bluetongue virus (BTV) and epizootic hemorrhagic disease virus (EHDV) are orbiviruses that can cause fatal vector-borne diseases in white-tailed deer (Odocoileus virginianus). Trapping methods for collecting potential Culicoides vectors of orbiviruses were compared to optimize surveillance studies. Methods The number of captured midges and the virus infection rates of midge pools were compared for dry ice-baited Centers for Disease Control and Prevention (CDC) traps with or without black light. The number of individual midges of different Culicoides species captured at different crepuscular and nocturnal periods using rotator traps also was determined. The number of species/specimens of Culicoides was measured using five different trap methods including three animal-baited methods, a CDC trap with black light, and a CDC trap with no light. Results In trial one, there was no significant difference (P = 0.37) in the proportion of BTV-infected flies caught in traps with light compared to traps without light. However, there was a significant difference (P = 0.026) for EHDV-infected flies, and 89% were captured in traps with light. In trial two, more specimens of C. debilipalpis were captured in the morning hours (06:00–08:00) than in the evening hours (18:00–20:00). For trial three, the animal-baited traps did not capture any species of Culicoides that were not captured in the CDC light traps. There was no significant difference (P = 0.22) in total specimens captured among all five trap types. Conclusions Specimens of Culicoides infected with BTV were not repelled by light traps in the first trial, while the majority of the specimens positive for EHDV were caught in traps with light. For the second trial, specimens of C. debilipalpis were most abundant during early morning hours, and thus spray applications of insecticides for control of that species may be more effective at sunrise rather than sunset. For objective three, no animal-baited trapping method collected different species of midges when compared to the CDC traps with light, which is unlike certain studies conducted in other geographical regions. Graphical abstract
format	article
author	Michael Becker Jeong-Seok Park Glen Gentry Claudia Husseneder Lane Foil
author_facet	Michael Becker Jeong-Seok Park Glen Gentry Claudia Husseneder Lane Foil
author_sort	Michael Becker
title	Comparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses
title_short	Comparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses
title_full	Comparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses
title_fullStr	Comparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses
title_full_unstemmed	Comparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses
title_sort	comparison of trapping methods for use in surveys for potential culicoides vectors of orbiviruses
publisher	BMC
publishDate	2021
url	https://doaj.org/article/cf83a96a2d5d4167acc45947577486c2
work_keys_str_mv	AT michaelbecker comparisonoftrappingmethodsforuseinsurveysforpotentialculicoidesvectorsoforbiviruses AT jeongseokpark comparisonoftrappingmethodsforuseinsurveysforpotentialculicoidesvectorsoforbiviruses AT glengentry comparisonoftrappingmethodsforuseinsurveysforpotentialculicoidesvectorsoforbiviruses AT claudiahusseneder comparisonoftrappingmethodsforuseinsurveysforpotentialculicoidesvectorsoforbiviruses AT lanefoil comparisonoftrappingmethodsforuseinsurveysforpotentialculicoidesvectorsoforbiviruses
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Comparison of trapping methods for use in surveys for potential Culicoides vectors of orbiviruses

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