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Study on the insecticidal activity of entomopathogenic fungi for the control of the fruit fly (Anastrepha obliqua), the main pest in mango crop in Colombia.
Lozano-Tovar, María Denis; Ballestas Álvarez, Karen Lorena; Sandoval-Lozano, Luis Andrés; Palma Mendez, Gloria Milena; Barrera-Cubillos, Gloria Patricia.
Afiliação
  • Lozano-Tovar MD; Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA). Centro de Investigación Nataima, Km 9, Espinal-Ibagué, Tolima, Colombia. mlozano@agrosavia.co.
  • Ballestas Álvarez KL; Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA). Centro de Investigación Nataima, Km 9, Espinal-Ibagué, Tolima, Colombia.
  • Sandoval-Lozano LA; Universidad del Tolima, Cl. 42 #1b-1, Ibagué, Tolima, Colombia.
  • Palma Mendez GM; Instituto Colombiano Agropecuario (ICA) Cra, 1a #42-63, Ibagué, Tolima, Colombia.
  • Barrera-Cubillos GP; Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA). Centro de Investigación Tibaitata, Km14 Mosquera-Bogotá, Tolima, Colombia.
Arch Microbiol ; 205(3): 83, 2023 Feb 06.
Article em En | MEDLINE | ID: mdl-36746793
The aim of this study was to evaluate and select entomopathogenic fungi that produces insecticidal compounds for the control of adults of Anastrepha obliqua Macquart (Diptera: tephritidae) that are the main pest of mango (Mangifera indica L. Bark) in Colombia. Nine entomopathogenic fungi isolates were evaluated, five belonging to the genus Metarhizium and four belonging to the genus Beauveria. One strain of the species Metarhizium robertsii with insecticidal activity was selected. By column fractionation, an active fraction was obtained, which caused mortalities higher than 90% after 48 h of exposure. Through HPLC it was determined that the active fraction is composed of more than 22 metabolites. Identification of the metabolites by UHPLC MS/MS revealed the presence of destruxin in E, D, A and B groups (destruxin E-diol, destruxin D, destruxin D1, destruxin D2, destruxin A2, destruxin A, destruxin A3, dihydrodestruxin A, desmB, destruxin B2, destruxin B and destruxin B1). The evaluation of the insecticidal capacity of the organic fractions obtained by HPLC indicated that the extract obtained from the isolate M. robertsii had a compound with high activity on adults of A. obliqua (destruxin A) causing massive mortality of up to 100%, after 48 h of the treatment administration. Furthermore, two other compounds with medium activity were found (destruxin A2 and destruxin B), showing mortalities between 60.0 and 81.3%, respectively. The extract of the isolate MT008 of M. robertsii showed higher insecticidal activity and a potential source for the control of A. obliqua.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Tephritidae / Mangifera / Inseticidas Limite: Animals País/Região como assunto: America do sul / Colombia Idioma: En Revista: Arch Microbiol Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Tephritidae / Mangifera / Inseticidas Limite: Animals País/Região como assunto: America do sul / Colombia Idioma: En Revista: Arch Microbiol Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Alemanha