Flight take-off and walking behavior of insecticide-susceptible and resistant strains of Sitophilus zeamais exposed to deltamethrin

dc.creatorGuedes, N.M.P.
dc.creatorGuedes, R.N.C.
dc.creatorFerreira, G.H.
dc.creatorSilva, L.B.
dc.date2018-04-26T14:48:39Z
dc.date2018-04-26T14:48:39Z
dc.date2009-03-23
dc.date.accessioned2023-09-27T21:51:12Z
dc.date.available2023-09-27T21:51:12Z
dc.identifier14752670
dc.identifierhttps://doi.org/10.1017/S0007485309006610
dc.identifierhttp://www.locus.ufv.br/handle/123456789/19166
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8967097
dc.descriptionInsects have evolved a variety of physiological and behavioral responses to various toxins in natural and managed ecosystems. However, insect behavior is seldom considered in insecticide studies although insects are capable of changing their behavior in response to their sensory perception of insecticides, which may compromise insecticide efficacy. This is particularly serious for insect pests that are physiologically resistant to insecticides since insecticide avoidance may further compromise their management. Locomotion plays a major role determining insecticide exposure and was, therefore, considered in investigating the behavioral responses of male and female adult insects from an insecticide-susceptible and two insecticide-resistant strains of the maize weevil Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), a major pest of stored cereals. Different dose dependent behavioral responses were expected among strains with behavioral resistance less likely to occur in physiologically resistant insects since they are able to withstand higher doses of insecticide. The behavioral responses to deltamethrinsprayed surfaces differed among the maize weevil strains. Such responses were concentration-independent for all of the strains. Stimulus-independent behavioral resistance was unrelated to physiological resistance with one resistant strain exhibiting higher rates of flight take-off and the other resistant strain exhibiting lower flight take-off. Female mobility was similar for all strains, unlike male mobility. Males of each strain exhibited a pattern of mobility following the same trend of flight take-off. Behavioral patterns of response to insecticide are, therefore, variable among strains, particularly among insecticide-resistant strains, and worth considering in resistance surveys and management programs.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherBulletin of Entomological Research
dc.relationv. 99, Issue 4, p. 393-400, August 2009
dc.rightsCambridge University Press
dc.subjectBehavioral resistance
dc.subjectInsecticide avoidance
dc.subjectInsecticide resistance
dc.subjectMaize weevil
dc.subjectRepellence
dc.subjectMobility
dc.subjectPyrethroids
dc.subjectStored grains
dc.titleFlight take-off and walking behavior of insecticide-susceptible and resistant strains of Sitophilus zeamais exposed to deltamethrin
dc.typeArtigo


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