Standardizing visual control devices for tsetse flies: east African Species Glossina fuscipes fuscipes and Glossina tachinoides.
Background Riverine species of tsetse are responsible for most human African trypanosomiasis (HAT) transmission and are also important vectors of animal trypanosomiasis. This study concerns the development of visual control devices for two such species, Glossina fuscipes fuscipes and Glossina tachin...
Published in: | PLoS Neglected Tropical Diseases |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2014
|
Subjects: | |
Online Access: | https://doi.org/10.1371/journal.pntd.0003334 https://doaj.org/article/8f865674e877425c825b25f160eeab32 |
id |
ftdoajarticles:oai:doaj.org/article:8f865674e877425c825b25f160eeab32 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:8f865674e877425c825b25f160eeab32 2023-05-15T15:14:17+02:00 Standardizing visual control devices for tsetse flies: east African Species Glossina fuscipes fuscipes and Glossina tachinoides. Francis Oloo Andrea Sciarretta Mohamed M Mohamed-Ahmed Thomas Kröber Andrew McMullin Steve Mihok Patrick M Guerin 2014-11-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0003334 https://doaj.org/article/8f865674e877425c825b25f160eeab32 EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pntd.0003334 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0003334 https://doaj.org/article/8f865674e877425c825b25f160eeab32 PLoS Neglected Tropical Diseases, Vol 8, Iss 11, p e3334 (2014) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2014 ftdoajarticles https://doi.org/10.1371/journal.pntd.0003334 2022-12-31T05:48:39Z Background Riverine species of tsetse are responsible for most human African trypanosomiasis (HAT) transmission and are also important vectors of animal trypanosomiasis. This study concerns the development of visual control devices for two such species, Glossina fuscipes fuscipes and Glossina tachinoides, at the eastern limits of their continental range. The goal was to determine the most long-lasting, practical and cost-effective visually attractive device that induces the strongest landing responses in these species for use as insecticide-impregnated tools in vector population suppression. Methods and findings Field trials were conducted in different seasons on G. f. fuscipes in Kenya, Ethiopia and the Sudan and on G. tachinoides in Ethiopia to measure the performance of traps and 2D targets of different sizes and colours, with and without chemical baits, at different population densities and under different environmental conditions. Adhesive film was used to enumerate flies at these remote locations to compare trapping efficiencies. The findings show that targets made from black and blue fabrics (either phthalogen or turquoise) covered with adhesive film render them equal to or more efficient than traps at capturing G. f. fuscipes and G. tachinoides. Biconical trap efficiency varied between 25% and 33% for the two species. Smaller 0.25 m×0.25 m phthalogen blue-black targets proved more efficient than the regular 1 m2 target for both species, by over six times for Glossina f. fuscipes and two times for G. tachinoides based on catches per m2. Overall, targets with a higher edge/surface area ratio were more efficient at capturing flies. Conclusions/significance Taking into account practical considerations and fly preferences for edges and colours, we propose a 0.5×0.75 m blue-black target as a simple cost-effective device for management of G. f. fuscipes and G. tachinoides, impregnated with insecticide for control and covered with adhesive film for population sampling. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic PLoS Neglected Tropical Diseases 8 11 e3334 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
spellingShingle |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Francis Oloo Andrea Sciarretta Mohamed M Mohamed-Ahmed Thomas Kröber Andrew McMullin Steve Mihok Patrick M Guerin Standardizing visual control devices for tsetse flies: east African Species Glossina fuscipes fuscipes and Glossina tachinoides. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
Background Riverine species of tsetse are responsible for most human African trypanosomiasis (HAT) transmission and are also important vectors of animal trypanosomiasis. This study concerns the development of visual control devices for two such species, Glossina fuscipes fuscipes and Glossina tachinoides, at the eastern limits of their continental range. The goal was to determine the most long-lasting, practical and cost-effective visually attractive device that induces the strongest landing responses in these species for use as insecticide-impregnated tools in vector population suppression. Methods and findings Field trials were conducted in different seasons on G. f. fuscipes in Kenya, Ethiopia and the Sudan and on G. tachinoides in Ethiopia to measure the performance of traps and 2D targets of different sizes and colours, with and without chemical baits, at different population densities and under different environmental conditions. Adhesive film was used to enumerate flies at these remote locations to compare trapping efficiencies. The findings show that targets made from black and blue fabrics (either phthalogen or turquoise) covered with adhesive film render them equal to or more efficient than traps at capturing G. f. fuscipes and G. tachinoides. Biconical trap efficiency varied between 25% and 33% for the two species. Smaller 0.25 m×0.25 m phthalogen blue-black targets proved more efficient than the regular 1 m2 target for both species, by over six times for Glossina f. fuscipes and two times for G. tachinoides based on catches per m2. Overall, targets with a higher edge/surface area ratio were more efficient at capturing flies. Conclusions/significance Taking into account practical considerations and fly preferences for edges and colours, we propose a 0.5×0.75 m blue-black target as a simple cost-effective device for management of G. f. fuscipes and G. tachinoides, impregnated with insecticide for control and covered with adhesive film for population sampling. |
format |
Article in Journal/Newspaper |
author |
Francis Oloo Andrea Sciarretta Mohamed M Mohamed-Ahmed Thomas Kröber Andrew McMullin Steve Mihok Patrick M Guerin |
author_facet |
Francis Oloo Andrea Sciarretta Mohamed M Mohamed-Ahmed Thomas Kröber Andrew McMullin Steve Mihok Patrick M Guerin |
author_sort |
Francis Oloo |
title |
Standardizing visual control devices for tsetse flies: east African Species Glossina fuscipes fuscipes and Glossina tachinoides. |
title_short |
Standardizing visual control devices for tsetse flies: east African Species Glossina fuscipes fuscipes and Glossina tachinoides. |
title_full |
Standardizing visual control devices for tsetse flies: east African Species Glossina fuscipes fuscipes and Glossina tachinoides. |
title_fullStr |
Standardizing visual control devices for tsetse flies: east African Species Glossina fuscipes fuscipes and Glossina tachinoides. |
title_full_unstemmed |
Standardizing visual control devices for tsetse flies: east African Species Glossina fuscipes fuscipes and Glossina tachinoides. |
title_sort |
standardizing visual control devices for tsetse flies: east african species glossina fuscipes fuscipes and glossina tachinoides. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2014 |
url |
https://doi.org/10.1371/journal.pntd.0003334 https://doaj.org/article/8f865674e877425c825b25f160eeab32 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 8, Iss 11, p e3334 (2014) |
op_relation |
https://doi.org/10.1371/journal.pntd.0003334 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0003334 https://doaj.org/article/8f865674e877425c825b25f160eeab32 |
op_doi |
https://doi.org/10.1371/journal.pntd.0003334 |
container_title |
PLoS Neglected Tropical Diseases |
container_volume |
8 |
container_issue |
11 |
container_start_page |
e3334 |
_version_ |
1766344748660948992 |