Efficacy of entomopathogenic fungi against Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) under laboratory conditions

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The aim of this study was to evaluate the efficacy of 10 isolates of entomopathogenic fungi as biocontrol agents against Rhyzopertha dominica. The isolates used were Beauveria bassiana (CEP 545, CEP 560, CEP 567), Metarhizium robertsii (CEP 381, CEP 401), M. anisopliae sensu lato (CEP 615, CEP 616,...

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Autores principales: Musso, Anahi, Marcondes de Almeida, Jose Eduardo, Padín, Susana, Ordoqui, Eliana, Lopez Lastra, Claudia Cristina
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Facultad de Ciencias Agrarias-UNCuyo 2020
Materias:
control biológico
Beauveria bassiana
granos almacenados
Rhyzopertha dominica
control alternativo
biological control
stored grains
alternative control
Acceso en línea:https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2829
Aporte de:
Revista de la Facultad de Ciencias Agrarias UNCuyo de Universidad Nacional de Cuyo
id I11-R107article-2829
record_format ojs
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-107
container_title_str Revista de la Facultad de Ciencias Agrarias UNCuyo
language Inglés
format Artículo revista
topic control biológico
Beauveria bassiana
granos almacenados
Rhyzopertha dominica
control alternativo
biological control
Beauveria bassiana
stored grains
Rhyzopertha dominica
alternative control
spellingShingle control biológico
Beauveria bassiana
granos almacenados
Rhyzopertha dominica
control alternativo
biological control
Beauveria bassiana
stored grains
Rhyzopertha dominica
alternative control
Musso, Anahi
Marcondes de Almeida, Jose Eduardo
Padín, Susana
Ordoqui, Eliana
Lopez Lastra, Claudia Cristina
Efficacy of entomopathogenic fungi against Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) under laboratory conditions
topic_facet control biológico
Beauveria bassiana
granos almacenados
Rhyzopertha dominica
control alternativo
biological control
Beauveria bassiana
stored grains
Rhyzopertha dominica
alternative control
author Musso, Anahi
Marcondes de Almeida, Jose Eduardo
Padín, Susana
Ordoqui, Eliana
Lopez Lastra, Claudia Cristina
author_facet Musso, Anahi
Marcondes de Almeida, Jose Eduardo
Padín, Susana
Ordoqui, Eliana
Lopez Lastra, Claudia Cristina
author_sort Musso, Anahi
title Efficacy of entomopathogenic fungi against Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) under laboratory conditions
title_short Efficacy of entomopathogenic fungi against Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) under laboratory conditions
title_full Efficacy of entomopathogenic fungi against Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) under laboratory conditions
title_fullStr Efficacy of entomopathogenic fungi against Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) under laboratory conditions
title_full_unstemmed Efficacy of entomopathogenic fungi against Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) under laboratory conditions
title_sort efficacy of entomopathogenic fungi against rhyzopertha dominica (fabricius) (coleoptera: bostrichidae) under laboratory conditions
description The aim of this study was to evaluate the efficacy of 10 isolates of entomopathogenic fungi as biocontrol agents against Rhyzopertha dominica. The isolates used were Beauveria bassiana (CEP 545, CEP 560, CEP 567), Metarhizium robertsii (CEP 381, CEP 401), M. anisopliae sensu lato (CEP 615, CEP 616, CEP 617) and Cordyceps (=Isaria) fumosorosea (CEP 303, CEP 309). Insects were sprayed with a conidial suspension of each fungus and incubated for up to 15 days under laboratory conditions. The percentage of mortality and the median survival time (MST) were estimated. Beauveria bassiana caused the highest mortality (47-65%) whereas the other fungal isolates caused a maximum of 21%. The isolates of B. bassiana CEP 545 and CEP 567 showed a MST of 8 and 9 days, respectively. Among all the tested isolates, B. bassiana CEP 545 resulted as the most efficient isolate as a biocontrol agent. The median lethal concentration (LC50) of this isolate was calculated with five concentrations within day 15 after treatment. The mortality increased with the highest concentrations and the LC50 was estimated in 9.54x109 conidia mL-1. This study demonstrated that some B. bassiana isolates, especially CEP 545, could be used as biocontrol agents against R. dominica. Highlights The B. bassiana native strains used in this research, especially CEP 545, showed high mortality rates and low LT50. All the fungal isolates evaluated decreased the survival rate of R. dominica. The percentage of mortality with B. bassiana CEP 545 increased as the concentration increased.
publisher Facultad de Ciencias Agrarias-UNCuyo
publishDate 2020
url https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2829
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first_indexed 2022-06-20T13:51:52Z
last_indexed 2022-06-20T13:51:52Z
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