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17 results on '"Rodriguez, Americo D."'

1. Pyrethroid susceptibility reversal in Aedes aegypti: A longitudinal study in Tapachula, Mexico

Author

Penilla-Navarro, Patricia, primary, Solis-Santoyo, Francisco, additional, Lopez-Solis, Alma, additional, Rodriguez, Americo D., additional, Vera-Maloof, Farah, additional, Lozano, Saul, additional, Contreras-Mejía, Elsa, additional, Vázquez-Samayoa, Geovanni, additional, Torreblanca-Lopez, Rene, additional, Perera, Rushika, additional, Black IV, William C., additional, and Saavedra-Rodriguez, Karla, additional

Published
2024
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4. Pyrethroid susceptibility reversal in Aedes aegypti: a longitudinal study in Tapachula, Mexico

Author

Saavedra-Rodriguez, Karla, primary, Penilla-Navarro, Patricia, additional, Solis-Santoyo, Francisco, additional, Lopez-Solis, Alma, additional, Rodriguez, Americo D., additional, Vera-Maloof, Farah, additional, Lozano, Saul, additional, Contreras-Mejía, Elsa, additional, Vázquez-Samayoa, Geovanni, additional, Perera, Rushika, additional, Black, William C., additional, and Torreblanca-Lopez, Rene, additional

Published
2023
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5. Comparison of Insecticide Resistance and Its Enzyme Mechanisms among <i>Aedes aegypti</i> Collected with Three Methods in a Dengue-Endemic City in Southern Mexico

Author

Quezada-Yaguachi, Walter Eduardo, primary, Rodriguez, Americo D., additional, Solís-Santoyo, Francisco, additional, López-Solís, Alma Delia, additional, Black IV, William C., additional, Saavedra-Rodriguez, Karla, additional, Morales-Viteri, Diego, additional, and Penilla-Navarro, R. Patricia, additional

Published
2022
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7. Insecticide resistance in Aedes aegypti from Tapachula, Mexico: Spatial variation and response to historical insecticide use

Author

Solis-Santoyo, Francisco, primary, Rodriguez, Americo D., additional, Penilla-Navarro, R. Patricia, additional, Sanchez, Daniel, additional, Castillo-Vera, Alfredo, additional, Lopez-Solis, Alma D., additional, Vazquez-Lopez, Eduardo D., additional, Lozano, Saul, additional, Black, William C., additional, and Saavedra-Rodriguez, Karla, additional

Published
2021
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11. Variation in competence for ZIKV transmission by Aedes aegypti and Aedes albopictus in Mexico

Author

Garcia-Luna, Selene M., primary, Weger-Lucarelli, James, additional, Rückert, Claudia, additional, Murrieta, Reyes A., additional, Young, Michael C., additional, Byas, Alex D., additional, Fauver, Joseph R., additional, Perera, Rushika, additional, Flores-Suarez, Adriana E., additional, Ponce-Garcia, Gustavo, additional, Rodriguez, Americo D., additional, Ebel, Gregory D., additional, and Black, William C., additional

Published
2018
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12. Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions

Author

Torres-Estrada,Jose Luis, Gonzalez,Julio Cesar Velazquez, Rios Delgado,Silvany M, Martinez,Maria Guadalupe Vazquez, Penilla,Patricia, Rodriguez,Americo D., Torres-Estrada,Jose Luis, Gonzalez,Julio Cesar Velazquez, Rios Delgado,Silvany M, Martinez,Maria Guadalupe Vazquez, Penilla,Patricia, and Rodriguez,Americo D.

Abstract

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

Published
2010

16. Remote Sensing as a Landscape Epidemiologic Tool to Identify Villages at High Risk for Malaria Transmission

Author

Beck, Louisa R., primary, Roberts, Donald R., additional, Washino, Robert K., additional, Dister, Sheri W., additional, Ulloa, Armando, additional, Hacker, Carl, additional, Rodriguez, Americo D., additional, Rodriguez, Mario H., additional, Paris, Jack F., additional, Spanner, Michael A., additional, Meza, Rosa A., additional, Legters, Llewellyn J., additional, and Rejmankova, Eliska, additional

Published
1994
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17. Toxicity of Spathodea campanulata P Beauvois (Scrophulariales: Bignoniaceae) aqueous extracts against immature stages of Anopheles albimanus (Diptera: Culicidae) under laboratory conditions.

Author

Torres-Estrada, Jose Luis, Velazquez Gonzalez, Julio Cesar, Rios Delgado, Silvany M., Vazquez-Martine, María Guadalupe, Penilla-Navarro, R. Patricia, and Rodriguez, Americo D.

Abstract

Purpose: 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. [ABSTRACT FROM AUTHOR]

Published
2010
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