title: Does behaviour play a role in house fly resistance to imidacloprid-containing baits?
abstract: The objective of this research was to examine the role and type of behavioural mechanisms that function in house fly, Musca domestica L. (Diptera: Muscidae), resistance to an imidacloprid-containing commercial fly bait, QuickBayt(®) , using an insecticide-susceptible and an imidacloprid-resistant strain. Mortality and feeding behaviour were observed through choice bioassays of three post-imidacloprid selected house fly generations to determine whether flies would consume the bait in the presence of an alternative food source. Mortality rates in choice containers progressively decreased in post-selection flies as QuickBayt(®) no-choice selections proceeded. There were no differences between the proportions of flies observed contacting QuickBayt(®) and sugar, respectively, a finding that eliminates repellency as a mechanism of stimulus-dependent behavioural resistance. However, differences in QuickBayt(®) consumption and subsequent mortality between choice and no-choice containers provided strong support for the evolution of consumption irritancy- or taste aversion-related behavioural resistance. The results of this study support the responsible rotation of insecticide bait formulations for house fly control.
authors.affiliation: Entomology and Nematology Department, University of Florida, Gainesville, FL, U.S.A.
authors.forename: K R
authors.initials: KR
authors.lastname: Seraydar
authors.forename: P E
authors.initials: PE
authors.lastname: Kaufman
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005247:Feeding Behavior / Q000187:drug effects; D005260:Female; D006793:Houseflies / Q000187:drug effects / Q000235:genetics / Q000502:physiology*; D007093:Imidazoles / Q000494:pharmacology*; D007300:Insect Control / Q000379:methods; D007305:Insecticide Resistance; D007306:Insecticides / Q000494:pharmacology*; D008297:Male; D000073943:Neonicotinoids; D009574:Nitro Compounds / Q000494:pharmacology*; D012641:Selection, Genetic / Q000187:drug effects*
chemical_list: D007093:Imidazoles; D007306:Insecticides; D000073943:Neonicotinoids; D009574:Nitro Compounds; C082359:imidacloprid
keywords: Musca domestica; behavioural resistance; fly bait; insecticide resistance; resistance selection