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Insecticide Resistance in Eggs and First Instars of the Bed Bug, Cimex lectularius (Hemiptera: Cimicidae)

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dc.contributor Entomology
dc.creator Campbell, Brittany E.
dc.creator Miller, Dini M.
dc.date 2017-09-20T18:21:18Z
dc.date 2017-09-20T18:21:18Z
dc.date 2015-01-15
dc.date 2017-09-20T18:21:18Z
dc.date.accessioned 2023-03-01T18:53:43Z
dc.date.available 2023-03-01T18:53:43Z
dc.identifier Campbell, B.E.; Miller, D.M. Insecticide Resistance in Eggs and First Instars of the Bed Bug, Cimex lectularius (Hemiptera: Cimicidae). Insects 2015, 6, 122-132.
dc.identifier http://hdl.handle.net/10919/79227
dc.identifier https://doi.org/10.3390/insects6010122
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/281755
dc.description Two strains of the common bed bug, <i>Cimex lectularius</i> L., eggs and first instars collected from pyrethroid-resistant adults were evaluated for insecticide resistance and compared to a susceptible strain. Dose-response bioassays were conducted using two insecticide formulations (Temprid: imidacloprid/β-cyfluthrin, and Transport: acetamiprid/ bifenthrin). The lethal concentration (LC<sub>50</sub>) for the two resistant egg strains exposed to imidacloprid/β-cyfluthrin ranged from 3 to 5-fold higher than susceptible strain eggs. Resistant strain eggs dipped into formulations of acetamiprid/bifenthrin had LC<sub>50</sub> values which were significantly greater (39 to 1,080-fold) than susceptible strain eggs. Similar to eggs, resistant strain first instars exposed to residual applications of imidacloprid/β-cyfluthrin had LC<sub>50</sub> values ranging from 121 to 493-fold greater than susceptible strain first instars. When resistant strain first instars were treated with acetamiprid/bifenthrin, they had LC<sub>50</sub> values that were 99 to &gt;1,900-fold greater than susceptible strain first instars. To determine differences between egg and first instar resistance, stage resistance ratios (SRR) were compared between the two stages. There was little difference between the egg and first instar stages, indicated by small SRR values ranging from 1.1 to 10.0. This study suggests that insecticide resistance is expressed early during bed bug development.
dc.description Published version
dc.format application/pdf
dc.format application/pdf
dc.language en
dc.publisher MDPI
dc.rights Creative Commons Attribution 4.0 International
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.subject bed bug
dc.subject Cimex lectularius
dc.subject egg
dc.subject first instar
dc.subject resistance
dc.title Insecticide Resistance in Eggs and First Instars of the Bed Bug, Cimex lectularius (Hemiptera: Cimicidae)
dc.title Insects
dc.type Article - Refereed
dc.type Text


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