Artículo
Two sticky traps baited with synthetic host odors to capture Triatoma infestans, an important vector of Chagas disease
Ibarra Bouzada, Lucia Maria Esther
; Martinez Beningaza, Andrea Carolina
; Cecere, Maria Carla
; Babino, Lucía
; Guerenstein, Pablo Gustavo
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Fecha de publicación:
07/2023
Editorial:
Elsevier Science
Revista:
Acta Tropica
ISSN:
0001-706X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Chagas disease is a vector-borne disease caused by Trypanosoma cruzi, which is transmitted by triatomine insects. Triatoma infestans is one of the main vectors. Efforts to eliminate T. infestans have often failed in the Gran Chaco, the largest endemic area of this species. Known methods for assessing triatomine house infestation include timed-manual collections by skilled personnel, bug notifications by householders’ and/or non-baited detection devices. However, the detection sensitivity of those methods needs to be improved, especially when the bugs are present at low densities. In this work we design and evaluate the performance of two types of sticky traps (pitfall and climbing traps), when baited with a synthetic host odor lure, to capture T. infestans nymphs within an experimental box under semi-controlled laboratory conditions. Nine assays were conducted for each type of trap using a different experimental box per type of trap design and per treatment. These treatments were: test (T, trap baited with the synthetic lure), positive control (C+, trap baited with a mouse) and negative control (C−, empty trap). One hundred percent of the sticky pitfall and 89% of the climbing traps baited with the synthetic lure captured at least one insect. Moreover, the sticky pitfall trap and the sticky climbing trap, both baited with the synthetic lure, captured 30% and 40% of the insects in a single night, respectively. In both cases, the trap with the synthetic lure captured significantly more insects than the non-baited trap. However, the synthetic lure could be improved, as the traps with this lure captured significantly less insects than the traps with a live host. In summary, the two types of synthetically-baited traps tested were able to capture T. infestans nymphs, indicating that both designs are effective under the laboratory experimental conditions and insect abundance used in this work. These traps deserve to be tested in a field setting.
Palabras clave:
INSECT VECTOR
,
MONITORING
,
NEGLECTED TROPICAL DISEASE
,
ODOR LURE
,
TRIATOMINES
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CICYTTP)
Articulos de CENTRO DE INV.CIENT.Y TRANSFERENCIA TEC A LA PROD
Articulos de CENTRO DE INV.CIENT.Y TRANSFERENCIA TEC A LA PROD
Articulos(IEGEBA)
Articulos de INSTITUTO DE ECOLOGIA, GENETICA Y EVOLUCION DE BS. AS
Articulos de INSTITUTO DE ECOLOGIA, GENETICA Y EVOLUCION DE BS. AS
Citación
Ibarra Bouzada, Lucia Maria Esther; Martinez Beningaza, Andrea Carolina; Cecere, Maria Carla; Babino, Lucía; Guerenstein, Pablo Gustavo; Two sticky traps baited with synthetic host odors to capture Triatoma infestans, an important vector of Chagas disease; Elsevier Science; Acta Tropica; 246; 7-2023; 1-6
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