Novel larvicide tablets of Bacillus thuringiensis var. israelensis: Assessment of larvicidal effect on Aedes aegypti (Diptera: Culicidae) in Colombia
Introduction: Aedes (Stegomyia) aegypti is the vector for dengue, chikungunya, and Zika arboviruses. Bti-CECIF is a bioinsecticide designed and developed in the form of a solid tablet for the control of this vector. It contains Bacillus thuringiensis var. israelensis (Bti) serotype H-14. Objective:...
Published in: | Biomédica |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English Spanish |
Published: |
Instituto Nacional de Salud
2018
|
Subjects: | |
Online Access: | https://doi.org/10.7705/biomedica.v38i0.3940 https://doaj.org/article/f069e6adedf5414e908bd59d1e4470de |
id |
ftdoajarticles:oai:doaj.org/article:f069e6adedf5414e908bd59d1e4470de |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:f069e6adedf5414e908bd59d1e4470de 2023-05-15T15:09:28+02:00 Novel larvicide tablets of Bacillus thuringiensis var. israelensis: Assessment of larvicidal effect on Aedes aegypti (Diptera: Culicidae) in Colombia Wilber Gómez-Vargas Kelly Valencia-Jiménez Guillermo Correa-Londoño Faiber Jaramillo-Yepes 2018-08-01T00:00:00Z https://doi.org/10.7705/biomedica.v38i0.3940 https://doaj.org/article/f069e6adedf5414e908bd59d1e4470de EN ES eng spa Instituto Nacional de Salud https://www.revistabiomedica.org/index.php/biomedica/article/view/3940 https://doaj.org/toc/0120-4157 0120-4157 doi:10.7705/biomedica.v38i0.3940 https://doaj.org/article/f069e6adedf5414e908bd59d1e4470de Biomédica: revista del Instituto Nacional de Salud, Vol 38, Iss 0, Pp 95-105 (2018) Aedes Bacillus thuringiensis disease vectors dengue chikungunya virus Zika virus Colombia Medicine R Arctic medicine. Tropical medicine RC955-962 article 2018 ftdoajarticles https://doi.org/10.7705/biomedica.v38i0.3940 2022-12-31T00:46:56Z Introduction: Aedes (Stegomyia) aegypti is the vector for dengue, chikungunya, and Zika arboviruses. Bti-CECIF is a bioinsecticide designed and developed in the form of a solid tablet for the control of this vector. It contains Bacillus thuringiensis var. israelensis (Bti) serotype H-14. Objective: To evaluate under semi-field and field conditions the efficacy and residual activity of Bti-CECIF tablets on Aedes aegypti larvae in two Colombian municipalities. Materials and methods: We tested under semi-field conditions in plastic tanks (Rotoplast™) four different Bti doses (0.13, 0.40, 0.66 and 0.93 mg/L) in the municipality of Apartadó, department of Antioquia, to assess Bti-CECIF efficacy (percentage of reduction of larval density) and the residual activity in water tanks containing A. aegypti third-instar larvae. The efficacy and residuality of the most lethal dose were subsequently evaluated under field conditions in cement tanks in the municipality of San Carlos, department of Córdoba. Results: Under semi-field conditions, the highest tested dose exhibited the greatest residual activity (15 days) after which larval mortality was 80%. Under field conditions, the highest tested Bti-CECIF doses showed 100% mortality and exhibited a residual activity of seven days in 90% of the tanks. Conclusion: Bti-CECIF tablets effectively controlled A. aegypti larvae under field conditions for up to seven days post-treatment. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Biomédica 38 95 105 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Spanish |
topic |
Aedes Bacillus thuringiensis disease vectors dengue chikungunya virus Zika virus Colombia Medicine R Arctic medicine. Tropical medicine RC955-962 |
spellingShingle |
Aedes Bacillus thuringiensis disease vectors dengue chikungunya virus Zika virus Colombia Medicine R Arctic medicine. Tropical medicine RC955-962 Wilber Gómez-Vargas Kelly Valencia-Jiménez Guillermo Correa-Londoño Faiber Jaramillo-Yepes Novel larvicide tablets of Bacillus thuringiensis var. israelensis: Assessment of larvicidal effect on Aedes aegypti (Diptera: Culicidae) in Colombia |
topic_facet |
Aedes Bacillus thuringiensis disease vectors dengue chikungunya virus Zika virus Colombia Medicine R Arctic medicine. Tropical medicine RC955-962 |
description |
Introduction: Aedes (Stegomyia) aegypti is the vector for dengue, chikungunya, and Zika arboviruses. Bti-CECIF is a bioinsecticide designed and developed in the form of a solid tablet for the control of this vector. It contains Bacillus thuringiensis var. israelensis (Bti) serotype H-14. Objective: To evaluate under semi-field and field conditions the efficacy and residual activity of Bti-CECIF tablets on Aedes aegypti larvae in two Colombian municipalities. Materials and methods: We tested under semi-field conditions in plastic tanks (Rotoplast™) four different Bti doses (0.13, 0.40, 0.66 and 0.93 mg/L) in the municipality of Apartadó, department of Antioquia, to assess Bti-CECIF efficacy (percentage of reduction of larval density) and the residual activity in water tanks containing A. aegypti third-instar larvae. The efficacy and residuality of the most lethal dose were subsequently evaluated under field conditions in cement tanks in the municipality of San Carlos, department of Córdoba. Results: Under semi-field conditions, the highest tested dose exhibited the greatest residual activity (15 days) after which larval mortality was 80%. Under field conditions, the highest tested Bti-CECIF doses showed 100% mortality and exhibited a residual activity of seven days in 90% of the tanks. Conclusion: Bti-CECIF tablets effectively controlled A. aegypti larvae under field conditions for up to seven days post-treatment. |
format |
Article in Journal/Newspaper |
author |
Wilber Gómez-Vargas Kelly Valencia-Jiménez Guillermo Correa-Londoño Faiber Jaramillo-Yepes |
author_facet |
Wilber Gómez-Vargas Kelly Valencia-Jiménez Guillermo Correa-Londoño Faiber Jaramillo-Yepes |
author_sort |
Wilber Gómez-Vargas |
title |
Novel larvicide tablets of Bacillus thuringiensis var. israelensis: Assessment of larvicidal effect on Aedes aegypti (Diptera: Culicidae) in Colombia |
title_short |
Novel larvicide tablets of Bacillus thuringiensis var. israelensis: Assessment of larvicidal effect on Aedes aegypti (Diptera: Culicidae) in Colombia |
title_full |
Novel larvicide tablets of Bacillus thuringiensis var. israelensis: Assessment of larvicidal effect on Aedes aegypti (Diptera: Culicidae) in Colombia |
title_fullStr |
Novel larvicide tablets of Bacillus thuringiensis var. israelensis: Assessment of larvicidal effect on Aedes aegypti (Diptera: Culicidae) in Colombia |
title_full_unstemmed |
Novel larvicide tablets of Bacillus thuringiensis var. israelensis: Assessment of larvicidal effect on Aedes aegypti (Diptera: Culicidae) in Colombia |
title_sort |
novel larvicide tablets of bacillus thuringiensis var. israelensis: assessment of larvicidal effect on aedes aegypti (diptera: culicidae) in colombia |
publisher |
Instituto Nacional de Salud |
publishDate |
2018 |
url |
https://doi.org/10.7705/biomedica.v38i0.3940 https://doaj.org/article/f069e6adedf5414e908bd59d1e4470de |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Biomédica: revista del Instituto Nacional de Salud, Vol 38, Iss 0, Pp 95-105 (2018) |
op_relation |
https://www.revistabiomedica.org/index.php/biomedica/article/view/3940 https://doaj.org/toc/0120-4157 0120-4157 doi:10.7705/biomedica.v38i0.3940 https://doaj.org/article/f069e6adedf5414e908bd59d1e4470de |
op_doi |
https://doi.org/10.7705/biomedica.v38i0.3940 |
container_title |
Biomédica |
container_volume |
38 |
container_start_page |
95 |
op_container_end_page |
105 |
_version_ |
1766340658433359872 |