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10.25100/socolen.v22i1.9917
Submitted: 02-06-2020
Published: 15-01-1996

Potential of the nematode Steinernema sp. for the biological control of the Andean weevil

Universidad Nacional de Colombia, Sede Bogotá. Facultad de Agronomía
Universidad Nacional de Colombia, Sede Bogotá. Facultad de Agronomía
Instituto Colombiano Agropecuario (ICA)
Universidad Nacional de Colombia, Sede Bogotá. Facultad de Agronomía
Keywords: Control biológico, Premnotrypes vorax, Nematodos de insectos, Steinernema sp., Gusano blanco de la papa

How to Cite

1.
GARZÓN-C. MY, AZA-T. BO, JIMÉNEZ-G. J, LUQUE-Z. JE. Potential of the nematode Steinernema sp. for the biological control of the Andean weevil. Rev. Colomb. Entomol. [Internet]. 1996 Jan. 15 [cited 2026 Oct. 22];22(1):25-30. Available from: https://revistacolombianaentomologia.univalle.edu.co/index.php/SOCOLEN/article/view/9917
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Abstract

The Andean weevil Premnotrypes vorax (Hustache) is an important pest of the Colom­bian potato crops. Nevertheless its impor­tance, few research has been carried out look­ing for alternatives of control different to the chemical. Based on previous reports, a soil entomopathogenic nematode was isolated and identified from Colombian potatoes fields in Villapinzón, Cundinamarca. Its pathogenicity to the weevil was compared with that of the product EXHIBIT, which active principle is Steinernema carpocapsae strain 25. The new nematode was multiplied in vivo in Gallería mellonella (L). larvae, following Dukty's pro­cedures, and it belongs to the genus Steiner­nema, and seems to be a new species. By cas­ing bioassays the median lethal concentration (LC,0) to the weevil was established, being 526,43 and 26,30 nematodes /ml for the na­tive nematode and S. carpocapsae, respec­tively, indicating that S. carpocapsae strain 25 is 20 times more pathogenic to P vorax than the native nematode.

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How to Cite

1.
GARZÓN-C. MY, AZA-T. BO, JIMÉNEZ-G. J, LUQUE-Z. JE. Potential of the nematode Steinernema sp. for the biological control of the Andean weevil. Rev. Colomb. Entomol. [Internet]. 1996 Jan. 15 [cited 2026 Oct. 22];22(1):25-30. Available from: https://revistacolombianaentomologia.univalle.edu.co/index.php/SOCOLEN/article/view/9917
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