Susceptibility of Pepper weevil (Anthonomus eugenii Cano) (Coleoptera: Curculionidae) to seven insecticides in rural areas of Baja California Sur, México.

Autores/as

  • Rosalía Servin-Villegas Centro de Investigaciones Biológicas del Noroeste, S.C. Mar Bermejo 195, Col. PlayaPalo de Santa Rita, Apdo. Post. 128. La Paz, B. C. S. CP: 23090. MÉXICO.
  • José L. García-Hernández Centro de Investigaciones Biológicas del Noroeste, S.C. Mar Bermejo 195, Col. PlayaPalo de Santa Rita, Apdo. Post. 128. La Paz, B. C. S. CP: 23090. MÉXICO.
  • Armando Tejas-Romero Centro de Investigaciones Biológicas del Noroeste, S.C. Mar Bermejo 195, Col. PlayaPalo de Santa Rita, Apdo. Post. 128. La Paz, B. C. S. CP: 23090. MÉXICO.
  • José L. Martínez-Carrillo INIFAP-CIRNO-Campo Experimental Valle del Yaqui
  • M. A. Toapanta Bayer Crop Science, 809 E. Bloomingdale Ave. Brandon, Florida. 33511. USA.

DOI:

https://doi.org/10.21829/azm.2008.243907

Palabras clave:

peeper weevil, Anthonomus eugenii, susceptibility, Baja California Sur, México

Resumen

The susceptibility of the pepper weevil (Anthonomus eugenii), collected from Baja California Sur, Mexico, to seven insecticides was determined. Acontact, residual exposition method was used to obtain the lethal concentrations fifty (LC50) and the diagnostic concentration (LC95) of organophosphates (OF), carbamates (CA), pyrethroids (PIR), and organochlorine (OC) insecticides used to control pepper weevils from two agricultural areas (Los Planes and Todos Santos) in Southern Baja California Peninsula, as well as on a pepper weevil population not exposed to insecticides (PWIF) for two years. The highest LC50’s were obtained for methomyl (CA) and oxamyl (CA), followed by methamidophos (OF), endosulfan (OC), cyfluthrin (PIR) and azinphos-methyl (OF). The lowest LC50’s were observed for carbaryl (CA). The field population from Todos Santos showed lower susceptibility than the population from Los Planes to insecticides as methomyl, oxamyl, and carbaryl, while with methamidophos, azinphos-methyl, and cyfluthrin, the LC50 showed higher values. The PWIF population presented the lowest LC50 values of all three populations tested. However, in most cases, the difference was not significant in relation to the two field populations, thus the PWIF population needs to be kept free of insecticides for longer periods to establish a susceptibility baseline for Anthonomus eugenii.

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Publicado

10-12-2008

Cómo citar

Servin-Villegas, R., García-Hernández, J. L., Tejas-Romero, A., Martínez-Carrillo, J. L., & Toapanta, M. A. (2008). Susceptibility of Pepper weevil (Anthonomus eugenii Cano) (Coleoptera: Curculionidae) to seven insecticides in rural areas of Baja California Sur, México. ACTA ZOOLÓGICA MEXICANA (N.S.), 24(3), 45–54. https://doi.org/10.21829/azm.2008.243907
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