Metarhizium anisopliae and Trichoderma viride control colonies of Atta cephalotes in field better than a chemical insecticide
<p class="MsoNormal" style="margin-bottom: 0.0001pt;"><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-ansi-language: EN-US;" lang="EN-US">The leaf-cutting ant <em>Atta cephalotes </em>is an...
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Universidad Nacional de Colombia
2011-12-01
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doaj-1792eb7e981a4897bf76eaf0b3053bbe2020-11-24T22:15:23ZspaUniversidad Nacional de ColombiaRevista Colombiana de Biotecnología0123-34751909-87582011-12-0141717826569Metarhizium anisopliae and Trichoderma viride control colonies of Atta cephalotes in field better than a chemical insecticideElkin López Arismendy0Sergio Orduz Peralta1Corporación para Investigaciones Biológicas-CIBCorporación para Investigaciones Biológicas-CIB<p class="MsoNormal" style="margin-bottom: 0.0001pt;"><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-ansi-language: EN-US;" lang="EN-US">The leaf-cutting ant <em>Atta cephalotes </em>is an economically important pest in agriculture. These ants use the material they cut to cultivate a fungus from which they fed. In this study, baits prepared with the entomopathogenic fungus <em>Metarhizium anisopliae </em>strain M-137, <em>Trichoderma viride </em>strain T-26, antagonist of the symbiont fungus of <em>A. cephaloies, </em>and a combination of both fungi were applied in order to control <em>A. cephalotes </em>colonies under field conditions. In addition, the insecticide activity of the baits was compared to a chemical product, Pirimifos Metil, which was applied with an air pump. The ants did not detect the fungal agents contained in the baits, and introduced then into their nests without awakening defensive behaviors. The mortality of the bait-treated nests was higher than 80% while the treatment with Pirimifos Metil was effective in only 60% of the nests. Additionally, a week after the application of these treatments, changes in the insects' behavior were observed, reflected mainly in the absence of foraging activity. In conclusion, <em>M. anisopliae </em>was effective in controlling <em>A. cephalotes </em>colonies, and superior to the chemical product Pirimifos Metil. </span></p>http://www.revistas.unal.edu.co/index.php/biotecnologia/article/view/30093Atta cephaloieshormigas cortadoras de hojasMetarhizium anisopliaeTrichoderma viride, control biológicoantagonismo |
collection |
DOAJ |
language |
Spanish |
format |
Article |
sources |
DOAJ |
author |
Elkin López Arismendy Sergio Orduz Peralta |
spellingShingle |
Elkin López Arismendy Sergio Orduz Peralta Metarhizium anisopliae and Trichoderma viride control colonies of Atta cephalotes in field better than a chemical insecticide Revista Colombiana de Biotecnología Atta cephaloies hormigas cortadoras de hojas Metarhizium anisopliae Trichoderma viride, control biológico antagonismo |
author_facet |
Elkin López Arismendy Sergio Orduz Peralta |
author_sort |
Elkin López Arismendy |
title |
Metarhizium anisopliae and Trichoderma viride control colonies of Atta cephalotes in field better than a chemical insecticide |
title_short |
Metarhizium anisopliae and Trichoderma viride control colonies of Atta cephalotes in field better than a chemical insecticide |
title_full |
Metarhizium anisopliae and Trichoderma viride control colonies of Atta cephalotes in field better than a chemical insecticide |
title_fullStr |
Metarhizium anisopliae and Trichoderma viride control colonies of Atta cephalotes in field better than a chemical insecticide |
title_full_unstemmed |
Metarhizium anisopliae and Trichoderma viride control colonies of Atta cephalotes in field better than a chemical insecticide |
title_sort |
metarhizium anisopliae and trichoderma viride control colonies of atta cephalotes in field better than a chemical insecticide |
publisher |
Universidad Nacional de Colombia |
series |
Revista Colombiana de Biotecnología |
issn |
0123-3475 1909-8758 |
publishDate |
2011-12-01 |
description |
<p class="MsoNormal" style="margin-bottom: 0.0001pt;"><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-ansi-language: EN-US;" lang="EN-US">The leaf-cutting ant <em>Atta cephalotes </em>is an economically important pest in agriculture. These ants use the material they cut to cultivate a fungus from which they fed. In this study, baits prepared with the entomopathogenic fungus <em>Metarhizium anisopliae </em>strain M-137, <em>Trichoderma viride </em>strain T-26, antagonist of the symbiont fungus of <em>A. cephaloies, </em>and a combination of both fungi were applied in order to control <em>A. cephalotes </em>colonies under field conditions. In addition, the insecticide activity of the baits was compared to a chemical product, Pirimifos Metil, which was applied with an air pump. The ants did not detect the fungal agents contained in the baits, and introduced then into their nests without awakening defensive behaviors. The mortality of the bait-treated nests was higher than 80% while the treatment with Pirimifos Metil was effective in only 60% of the nests. Additionally, a week after the application of these treatments, changes in the insects' behavior were observed, reflected mainly in the absence of foraging activity. In conclusion, <em>M. anisopliae </em>was effective in controlling <em>A. cephalotes </em>colonies, and superior to the chemical product Pirimifos Metil. </span></p> |
topic |
Atta cephaloies hormigas cortadoras de hojas Metarhizium anisopliae Trichoderma viride, control biológico antagonismo |
url |
http://www.revistas.unal.edu.co/index.php/biotecnologia/article/view/30093 |
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