Resistance to abamectin in field population of Tetranychus urticae Koch (Acari: Tetranychidae) associated with cut rose from state of Mexico, Mexico

Authors

  • Karen Vianey Díaz-Arias Instituto de Fitosanidad, Programa Entomología y Acarología, Colegio de Postgraduados Campus Montecillo, Texcoco, Estado de Mexico, Mexico
  • J. Concepción Rodríguez-Maciel Instituto de Fitosanidad, Programa Entomología y Acarología, Colegio de Postgraduados Campus Montecillo, Texcoco, Estado de Mexico, Mexico
  • Ángel Lagunes-Tejeda Instituto de Fitosanidad, Programa Entomología y Acarología, Colegio de Postgraduados Campus Montecillo, Texcoco, Estado de Mexico, Mexico
  • Sotero Aguilar-Medel 2Universidad Autónoma del Estado de Mexico, Centro Universitario Tenancingo, Carretera Tenancingo-Villa Guerrero, Km. 1.5, C. P. 52400, Tenancingo, Estado de Mexico, Mexico
  • Manuel Alejandro Tejeda-Reyes Instituto de Fitosanidad, Programa Entomología y Acarología, Colegio de Postgraduados Campus Montecillo, Texcoco, Estado de Mexico, Mexico
  • Gonzalo Silva-Aguayo Facultad de Agronomía, Universidad de Concepción, Chillán, Chile

Abstract

Cut rose growers in the municipalities of Villa Guerrero, Tanancingo, Coatepec Harinas, and Ixtapan de la Sal, in the state of Mexico, Mexico, have reported low effectiveness of abamectin in the control of Tetranychus urticae, possibly due to development of resistance. The objective of this study was to determine the response of 4 field populations and 1 population susceptible to this acaricide. The values of the lethal concentration (LC) at 50% of mortality fluctuated between 0.0012 to 25.37 mg per L, while the relative response (RR) at 50% of mortality of the field populations varied from 2,226 to 21,141. The values of LC at 95% mortality varied from 0.008 to 81,218 mg per L, while the RR at 95% varied from 23,185 to 10,152,250. These results reflect the levels of resistance to abamectin, and therefore, implementation of other alternatives in the management of T. urticae are recommended.

 

 

Sumario

Productores de los municipios de Villa Guerrero, Tenancingo, Coatepec Harinas e Ixtapan de la Sal en el Estado de México, México han reportado una baja efectividad de abamectina en el control de Tetranychus urticae la cual posiblemente se deba al desarrollo de resistencia. El objetivo de esta investigación fue determinar la respuesta, a este acaricida, en cuatro poblaciones de campo y una susceptible. Los valores de la concentración letal (CL) al 50% de mortalidad fluctuaron de 0.0012 (Susceptible) a 25.37 mg por L (Ixtapan de la Sal), mientras que la respuesta relativa (RR) al 50% de mortalidad de las poblaciones de campo varió de 2,226 (Coatepec Harinas) a 21,141 (Ixtapan de la Sal). Los valores de la CL al 95% de mortalidad variaron de 0.008 (Susceptible) a 81,218 mg por L (Coatepec Harinas), mientras que la RR al 95% de mortalidad varió de 23,185 (Tenancingo) a 10,152,250 (Coatepec Harinas). Estos resultados demuestran un alto nivel de resistencia a abamectina, por lo que se recomienda la implementación de otras alternativas de manejo de T. urticae.

Key Words: resistance; ornamentals; macrocyclic lactone; acaricide

View this article in BioOne https://doi.org/10.1653/024.102.0222

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Published

2019-08-01

Issue

Vol. 102, No. 2 (June 2019)

Section

Scientific Notes

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