Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes

Abstract Background: The leafcutter ant (Atta cephalotes) is associated with losses in the agricultural sector, due to its defoliating activity; for its control, biological, mechanical and chemical methods have been developed, the latter associated with adverse effects on human and environmental he...

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Autores principales:	Fernandez-Daza,Fabian Felipe, Rodriguez-Roman,Ginna, Valencia-Rodriguez,Marino, Gonzalez-Vargas,Ivan Andres, Cardenas-Heano,Heiber, Pascol-Cereda,Marneyi, Cuervo-Mulet,Raul Alberto
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2019
Materias:	Entomopathogenic fungi Biological control Bioinsecticide Biological risk Field validation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602019000100247
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spelling	oai:scielo:S0716-976020190001002472019-10-10Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotesFernandez-Daza,Fabian FelipeRodriguez-Roman,GinnaValencia-Rodriguez,MarinoGonzalez-Vargas,Ivan AndresCardenas-Heano,HeiberPascol-Cereda,MarneyiCuervo-Mulet,Raul Alberto Entomopathogenic fungi Biological control Bioinsecticide Biological risk Field validation Abstract Background: The leafcutter ant (Atta cephalotes) is associated with losses in the agricultural sector, due to its defoliating activity; for its control, biological, mechanical and chemical methods have been developed, the latter associated with adverse effects on human and environmental health. This research validated in the field for the control of the leafcutter ant (A. cephalotes) using a mixture of Beauveria bassiana and Trichoderma lignorum spores. Methods: The effectiveness from the combination of spores of B. bassiana and T lignorum with an initial concentration of 2 × 109 spores/ml, in the following proportions of B. bassiana and T. lignorum, A (1:1), of each fungus. It was evaluated within the university campus, comparing it with two commercial formulations, Mycotrol (B. bassiana) and Mycobac (T. lignorum). Additionally, this formulation was evaluated in 49 nests distributed 16 in 14 locations in Colombia. The formulation application was carried out by direct application, using a pump at a speed of 10 ml/m2. The effectiveness was estimated from the reduction of the flow of ants, evaluating the statistically significant differences using the ANOVA and Tukey-test. Results: Effective control of 90% of the nests was observed in the field phase in 60 days, except in nests with areas > 50 m2 that were located in regions with high rainfall (annual average precipitation above 7000 mm), such as Buenaventura. Conclusions: In this work, it was demonstrated that the combination of B. bassiana and T. lignorum spores represent a viable alternative for the control of the leafcutter ant, in which the effectiveness is related to several factors, including the size of the nest and the rainfall in the area.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.52 20192019-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602019000100247en10.1186/s40659-019-0259-y
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Entomopathogenic fungi Biological control Bioinsecticide Biological risk Field validation
spellingShingle	Entomopathogenic fungi Biological control Bioinsecticide Biological risk Field validation Fernandez-Daza,Fabian Felipe Rodriguez-Roman,Ginna Valencia-Rodriguez,Marino Gonzalez-Vargas,Ivan Andres Cardenas-Heano,Heiber Pascol-Cereda,Marneyi Cuervo-Mulet,Raul Alberto Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes
description	Abstract Background: The leafcutter ant (Atta cephalotes) is associated with losses in the agricultural sector, due to its defoliating activity; for its control, biological, mechanical and chemical methods have been developed, the latter associated with adverse effects on human and environmental health. This research validated in the field for the control of the leafcutter ant (A. cephalotes) using a mixture of Beauveria bassiana and Trichoderma lignorum spores. Methods: The effectiveness from the combination of spores of B. bassiana and T lignorum with an initial concentration of 2 × 109 spores/ml, in the following proportions of B. bassiana and T. lignorum, A (1:1), of each fungus. It was evaluated within the university campus, comparing it with two commercial formulations, Mycotrol (B. bassiana) and Mycobac (T. lignorum). Additionally, this formulation was evaluated in 49 nests distributed 16 in 14 locations in Colombia. The formulation application was carried out by direct application, using a pump at a speed of 10 ml/m2. The effectiveness was estimated from the reduction of the flow of ants, evaluating the statistically significant differences using the ANOVA and Tukey-test. Results: Effective control of 90% of the nests was observed in the field phase in 60 days, except in nests with areas > 50 m2 that were located in regions with high rainfall (annual average precipitation above 7000 mm), such as Buenaventura. Conclusions: In this work, it was demonstrated that the combination of B. bassiana and T. lignorum spores represent a viable alternative for the control of the leafcutter ant, in which the effectiveness is related to several factors, including the size of the nest and the rainfall in the area.
author	Fernandez-Daza,Fabian Felipe Rodriguez-Roman,Ginna Valencia-Rodriguez,Marino Gonzalez-Vargas,Ivan Andres Cardenas-Heano,Heiber Pascol-Cereda,Marneyi Cuervo-Mulet,Raul Alberto
author_facet	Fernandez-Daza,Fabian Felipe Rodriguez-Roman,Ginna Valencia-Rodriguez,Marino Gonzalez-Vargas,Ivan Andres Cardenas-Heano,Heiber Pascol-Cereda,Marneyi Cuervo-Mulet,Raul Alberto
author_sort	Fernandez-Daza,Fabian Felipe
title	Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes
title_short	Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes
title_full	Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes
title_fullStr	Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes
title_full_unstemmed	Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes
title_sort	spores of beauveria bassiana and trichoderma lignorum as a bioinsecticide for the control of atta cephalotes
publisher	Sociedad de Biología de Chile
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602019000100247
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Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes

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