Resistance to amitraz and flumethrin in Varroa destructor populations from Veracruz, Mexico

publication date: Sep 30, 2005
Send a summary of this page to someone via email.

Journal of Apicultural Research
Vol.44 (3) pp. 124 - 125
DOI10.3896/IBRA.1.44.3.07
DateSeptember 2005
Article Title Resistance to amitraz and flumethrin in Varroa destructor populations from Veracruz, Mexico
Author(s) Sóstenes R Rodríguez-Dehaibes, Gabriel Otero-Colina, Violeta Pardio Sedas and Juan A Villanueva Jiménez 
Abstract Dose response curves were determined for amitraz and flumethrin for Varroa destructor collected near Veracruz city, Mexico. Both pesticides were sprayed at known concentrations on female mites using a Burgerjon’s tower. Probit analysis was performed to calculate mean lethal concentrations (LC50). We estimated the LC50 for amitraz to be 0.526 mg/litre; this estimate is 2.3-times higher than the LC50 baseline established nine years earlier in Mexico. The LC50 for flumethrin was estimated as 0.286 mg/litre, 327-times higher than the LC50 baseline, suggesting the development of resistance.
Keywords Varroa destructor, Mexico 
Download