Contribution of the horizontal transmission of the entomopathogenic fungus Beauveria bassiana to the overall performance of a fungal powder formulation against Triatoma infestans
Lucas Forlani, Nicolás Pedrini, M Patricia JuárezInstituto de Investigaciones Bioquímicas de La Plata (CCT La Plata CONICET-UNLP), Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, ArgentinaAbstract: Control of domiciliated Triatoma infestans, the major Chagas disease vector...
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ftdoajarticles:oai:doaj.org/article:6acedd0af86b42e0b326cc0cb0b70045 2023-05-15T15:06:16+02:00 Contribution of the horizontal transmission of the entomopathogenic fungus Beauveria bassiana to the overall performance of a fungal powder formulation against Triatoma infestans Forlani L Pedrini N Juárez MP 2011-09-01T00:00:00Z https://doaj.org/article/6acedd0af86b42e0b326cc0cb0b70045 EN eng Dove Medical Press http://www.dovepress.com/contribution-of-the-horizontal-transmission-of-the-entomopathogenic-fu-a8387 https://doaj.org/toc/1179-7282 1179-7282 https://doaj.org/article/6acedd0af86b42e0b326cc0cb0b70045 Research and Reports in Tropical Medicine, Vol 2011, Iss default, Pp 135-140 (2011) Arctic medicine. Tropical medicine RC955-962 article 2011 ftdoajarticles 2022-12-31T12:08:54Z Lucas Forlani, Nicolás Pedrini, M Patricia JuárezInstituto de Investigaciones Bioquímicas de La Plata (CCT La Plata CONICET-UNLP), Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, ArgentinaAbstract: Control of domiciliated Triatoma infestans, the major Chagas disease vector in southern South America, is currently achieved by indoor residual spraying of infested houses with chemical insecticides. However, in recent years this strategy has been threatened by the emergence of pyrethroid-resistant bug populations. As an alternative approach, we have previously demonstrated the efficacy of the entomopathogenic fungus Beauveria bassiana to control T. infestans bugs regardless of their pyrethroid susceptibility. In this work, we tested the virulence and residual activity of a powdered fungal formulation, and studied the significance of the horizontal transmission process (autodissemination) to fungal infection of bugs. The B. bassiana-based formulation was highly virulent against all T. infestans stages, and maintained its insecticidal capability for at least 5 months under natural ambient conditions. We showed that horizontal transmission of conidia is associated to bug density, and contributes significantly to the overall population infection event.Keywords: Chagas disease vectors, triatomines, biocontrol, autodissemination Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Arctic medicine. Tropical medicine RC955-962 |
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Arctic medicine. Tropical medicine RC955-962 Forlani L Pedrini N Juárez MP Contribution of the horizontal transmission of the entomopathogenic fungus Beauveria bassiana to the overall performance of a fungal powder formulation against Triatoma infestans |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 |
description |
Lucas Forlani, Nicolás Pedrini, M Patricia JuárezInstituto de Investigaciones Bioquímicas de La Plata (CCT La Plata CONICET-UNLP), Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, ArgentinaAbstract: Control of domiciliated Triatoma infestans, the major Chagas disease vector in southern South America, is currently achieved by indoor residual spraying of infested houses with chemical insecticides. However, in recent years this strategy has been threatened by the emergence of pyrethroid-resistant bug populations. As an alternative approach, we have previously demonstrated the efficacy of the entomopathogenic fungus Beauveria bassiana to control T. infestans bugs regardless of their pyrethroid susceptibility. In this work, we tested the virulence and residual activity of a powdered fungal formulation, and studied the significance of the horizontal transmission process (autodissemination) to fungal infection of bugs. The B. bassiana-based formulation was highly virulent against all T. infestans stages, and maintained its insecticidal capability for at least 5 months under natural ambient conditions. We showed that horizontal transmission of conidia is associated to bug density, and contributes significantly to the overall population infection event.Keywords: Chagas disease vectors, triatomines, biocontrol, autodissemination |
format |
Article in Journal/Newspaper |
author |
Forlani L Pedrini N Juárez MP |
author_facet |
Forlani L Pedrini N Juárez MP |
author_sort |
Forlani L |
title |
Contribution of the horizontal transmission of the entomopathogenic fungus Beauveria bassiana to the overall performance of a fungal powder formulation against Triatoma infestans |
title_short |
Contribution of the horizontal transmission of the entomopathogenic fungus Beauveria bassiana to the overall performance of a fungal powder formulation against Triatoma infestans |
title_full |
Contribution of the horizontal transmission of the entomopathogenic fungus Beauveria bassiana to the overall performance of a fungal powder formulation against Triatoma infestans |
title_fullStr |
Contribution of the horizontal transmission of the entomopathogenic fungus Beauveria bassiana to the overall performance of a fungal powder formulation against Triatoma infestans |
title_full_unstemmed |
Contribution of the horizontal transmission of the entomopathogenic fungus Beauveria bassiana to the overall performance of a fungal powder formulation against Triatoma infestans |
title_sort |
contribution of the horizontal transmission of the entomopathogenic fungus beauveria bassiana to the overall performance of a fungal powder formulation against triatoma infestans |
publisher |
Dove Medical Press |
publishDate |
2011 |
url |
https://doaj.org/article/6acedd0af86b42e0b326cc0cb0b70045 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Research and Reports in Tropical Medicine, Vol 2011, Iss default, Pp 135-140 (2011) |
op_relation |
http://www.dovepress.com/contribution-of-the-horizontal-transmission-of-the-entomopathogenic-fu-a8387 https://doaj.org/toc/1179-7282 1179-7282 https://doaj.org/article/6acedd0af86b42e0b326cc0cb0b70045 |
_version_ |
1766337909471838208 |