Baseline LC50 levels of Amitraz, Coumaphos, Fluvalinate and Flumethrin in Varroa destructor susceptible populations from Buenos Aires province, Argentine.

MAGGI, MATÍAS; RUFFINENGO, SERGIO; GENDE, LIESEL; EGUARAS, MARTIN

Journal of Apicultural Research

Año: 2008 vol. 47 p. 292 - 295

This study estimates the LC50 baseline levels of amitraz, coumaphos, fluvalinate, and flumethrin in susceptible Varroa destructor populations in Argentina. Concentration response bioassays were conducted with said acaricides. Laboratory results of lethal concentrations (LC50) were 0.1 ìg/dish for amitraz, 0.29 ìg/dish for  fluvalinate, 0.34 ìg/dish for flumethrin, and 0.57 ìg/dish for coumaphos, respectively.  All tests guaranteed 100% bee survival. LC50 references for mite populations susceptible to the most commonly used miticides were established in Argentina. The relevance of the outcomes obtained lies in the future elaboration of V. destructor integrated pest management programs