Resistance Development of Dermanyssus gallinae Against Commercial Acaricides in Poultry Farms in Japan

Abstract

The poultry red mite, Dermanyssus gallinae, was collected from 139 poultry farms in 32 prefectures in Japan during the period from 2007 to 2010, and from 119 poultry farms in 29 prefectures in Japan from 2011 to 2014. The development of resistance in these D. gallinae mites against commercial acaricides that had been used for the control of D. gallinae (three carbamates, one pyrethroid and three organophosphates) and commercial insecticides used for the control of flies (two pyrethroids, two combinations of pyrethroid and organophosphate) was examined. As a result, D. gallinae mites showed a resistance against all acaricides and insecticides examined in this study, but the development of resistance against carbamate acaricide (carbaryl), organophosphate acaricide (trichlorfon), and combination insecticide (fenitrothion, permethrin, and phthalthrin) appeared to be weaker than those of other acaricides and insecticides. The development of resistance against all commercial acaricides that target D. gallinae mites control was confirmed in 19 out of 139 (13.7%) poultry farms from 2007 to 2010, and 22 out of 119 (18.5%) poultry farms from 2011 to 2013.