Monitoring of the Pink Bollworm1 Susceptibility to the Bacillus thuringiensis Endotoxins Cry1Ac and Cry2Ab in México

Urbano Nava-Camberos; Verónica Ávila-Rodríguez; José Luis Martínez-Carrillo

doi:10.3958/059.035.0327

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Urbano Nava-Camberos,¹ Verónica Ávila-Rodríguez,^1,2 José Luis Martínez-Carrillo^1,3

¹Facultad de Agronomía y Zootecnia, Universidad Juárez del Estado de Durango, Km. 35 Carretera Gómez Palacio, Venecia, Durango, México
²Laboratorio de Biología de Invertebrados, Escuela Superior de Biología, Universidad Juárez del Estado de Durango, Ap. Postal 146, Gómez Palacio, Durango, México.
³Instituto Tecnológico de Sonora, 5 de Febrero 818 sur, Cd. Obregón, Sonora. México.

Abstract

The pink bollworm, Pectinophora gossypiella (Saunders), is a primary pest of cotton, Gossypium hirsutum L., in Mexico. Baseline and diagnostic concentration bioassays were used to determine the susceptibility of this pest to Becillus thuringiensis (Berliner) toxins Cry1Ac and Cry2Ab in different cotton-growing regions of Mexico, during 1998–2006. The LC₅₀ values varied depending on the region and collection date or generation of insect. Pink bollworm populations from the Mexicali Valley, Baja California, were the most susceptible. In general, results obtained showed no indication of resistance by this insect in Mexico.

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Urbano Nava-Camberos, Verónica Ávila-Rodríguez, and José Luis Martínez-Carrillo "Monitoring of the Pink Bollworm Susceptibility to the Bacillus thuringiensis Endotoxins Cry1Ac and Cry2Ab in México," Southwestern Entomologist 35(3), 425-429, (1 October 2010). https://doi.org/10.3958/059.035.0327

Published: 1 October 2010

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