Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions
Jose Luis Torres-Estrada1, Julio Cesar Velazquez Gonzalez1, Silvany M Rios Delgado1, María Guadalupe Vazquez-Martinez1, R Patricia Penilla-Navarro1, Americo D Rodriguez11Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública, Colonia Centro, Tapachula, Chiapas, México...
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ftdoajarticles:oai:doaj.org/article:dee847c0f485409bb03b6c5410cdffec 2023-05-15T15:09:52+02:00 Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions Jose Luis Torres-Estrada Julio Cesar Velazquez Gonzalez Silvany M Rios Delgado 2010-12-01T00:00:00Z https://doaj.org/article/dee847c0f485409bb03b6c5410cdffec EN eng Dove Medical Press http://www.dovepress.com/toxicity-of-spathodea-campanulata-p-beauvois-scrophulariales-bignoniac-a5842 https://doaj.org/toc/1179-7282 1179-7282 https://doaj.org/article/dee847c0f485409bb03b6c5410cdffec Research and Reports in Tropical Medicine, Vol 2010, Iss default, Pp 83-87 (2010) Arctic medicine. Tropical medicine RC955-962 article 2010 ftdoajarticles 2022-12-31T08:15:25Z Jose Luis Torres-Estrada1, Julio Cesar Velazquez Gonzalez1, Silvany M Rios Delgado1, María Guadalupe Vazquez-Martinez1, R Patricia Penilla-Navarro1, Americo D Rodriguez11Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública, Colonia Centro, Tapachula, Chiapas, MéxicoPurpose: To determine the effects of African tulip Spathodea campanulata aqueous extracts on every immature stage of Anopheles albimanus under laboratory conditions.Methods: The extract was obtained making an incision on the apical part of prefloral bulbs, and two sets of dilutions with distilled water were prepared. The first set was used at 50%, 20%, 10%, 5%, and 2.5% concentrations in bioassays to test its effect on egg-hatching inhibition. The second set was used at 10%, 5%, 1%, 0.1%, and 0.01% to test toxicity on larvae and pupae. Also, residual efficacy and lethal time (LT) were estimated.Results: The highest inhibition (87.5%) recorded for egg hatching was at a 50% concentration. Third and fourth instar larvae and pupae were the most susceptible to 10% and 5% of S. campanulata aqueous extracts, with 98.3%–100% mortality. The residual activity with 10% concentration persisted 7 days, with 100% mortality, and LT for 99% mortality (LT99) was 2.28 hours on third instar larvae, 1.7 hours on fourth instar larvae, and 2.25 hours on pupae.Conclusion: S. campanulata extracts are promising as biolarvicides. Further toxicological and chromatographic studies are encouraged and needed.Keywords: African tulip, botanical insecticides, malaria, mosquitoes Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Vazquez ENVELOPE(-64.000,-64.000,-65.433,-65.433) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic medicine. Tropical medicine RC955-962 |
spellingShingle |
Arctic medicine. Tropical medicine RC955-962 Jose Luis Torres-Estrada Julio Cesar Velazquez Gonzalez Silvany M Rios Delgado Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 |
description |
Jose Luis Torres-Estrada1, Julio Cesar Velazquez Gonzalez1, Silvany M Rios Delgado1, María Guadalupe Vazquez-Martinez1, R Patricia Penilla-Navarro1, Americo D Rodriguez11Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública, Colonia Centro, Tapachula, Chiapas, MéxicoPurpose: To determine the effects of African tulip Spathodea campanulata aqueous extracts on every immature stage of Anopheles albimanus under laboratory conditions.Methods: The extract was obtained making an incision on the apical part of prefloral bulbs, and two sets of dilutions with distilled water were prepared. The first set was used at 50%, 20%, 10%, 5%, and 2.5% concentrations in bioassays to test its effect on egg-hatching inhibition. The second set was used at 10%, 5%, 1%, 0.1%, and 0.01% to test toxicity on larvae and pupae. Also, residual efficacy and lethal time (LT) were estimated.Results: The highest inhibition (87.5%) recorded for egg hatching was at a 50% concentration. Third and fourth instar larvae and pupae were the most susceptible to 10% and 5% of S. campanulata aqueous extracts, with 98.3%–100% mortality. The residual activity with 10% concentration persisted 7 days, with 100% mortality, and LT for 99% mortality (LT99) was 2.28 hours on third instar larvae, 1.7 hours on fourth instar larvae, and 2.25 hours on pupae.Conclusion: S. campanulata extracts are promising as biolarvicides. Further toxicological and chromatographic studies are encouraged and needed.Keywords: African tulip, botanical insecticides, malaria, mosquitoes |
format |
Article in Journal/Newspaper |
author |
Jose Luis Torres-Estrada Julio Cesar Velazquez Gonzalez Silvany M Rios Delgado |
author_facet |
Jose Luis Torres-Estrada Julio Cesar Velazquez Gonzalez Silvany M Rios Delgado |
author_sort |
Jose Luis Torres-Estrada |
title |
Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions |
title_short |
Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions |
title_full |
Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions |
title_fullStr |
Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions |
title_full_unstemmed |
Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions |
title_sort |
toxicity of spathodea campanulata p beauvois (scrophulariales: bignoniaceae) aqueous extracts against immature stages of anopheles albimanus (diptera: culicidae) under laboratory conditions |
publisher |
Dove Medical Press |
publishDate |
2010 |
url |
https://doaj.org/article/dee847c0f485409bb03b6c5410cdffec |
long_lat |
ENVELOPE(-64.000,-64.000,-65.433,-65.433) |
geographic |
Arctic Vazquez |
geographic_facet |
Arctic Vazquez |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Research and Reports in Tropical Medicine, Vol 2010, Iss default, Pp 83-87 (2010) |
op_relation |
http://www.dovepress.com/toxicity-of-spathodea-campanulata-p-beauvois-scrophulariales-bignoniac-a5842 https://doaj.org/toc/1179-7282 1179-7282 https://doaj.org/article/dee847c0f485409bb03b6c5410cdffec |
_version_ |
1766340972044615680 |