10.5061/DRYAD.RR762
Crawley, Sydney E.
University of Kentucky
Gordon, Jennifer R.
University of Kentucky
Kowles, Katelyn A.
University of Kentucky
Potter, Michael F.
University of Kentucky
Haynes, Kenneth F.
University of Kentucky
Data from: Impact of sublethal exposure to a pyrethroid-neonicotinoid
insecticide on mating, fecundity and development in the bed bug Cimex
lectularius L. (Hemiptera: Cimicidae)
Dryad
dataset
2018
urban insect pest
Cimex lectularius
behavioral toxicology
insecticide efficacy
2018-05-02T00:00:00Z
2018-05-02T00:00:00Z
en
https://doi.org/10.1371/journal.pone.0177410
101678 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Sublethal exposure to an insecticide may alter insect feeding, mating,
oviposition, fecundity, development, and many other life history
parameters. Such effects may have population-level consequences that are
not apparent in traditional dose-mortality evaluations. Earlier, we found
that a routinely used combination insecticide that includes a pyrethroid
and a neonicotinoid (TempridĀ® SC) had deleterious effects on multiple bed
bug (Cimex lectularius, L.) behaviors. Here, we demonstrate that sublethal
exposure impacts physiology and reproduction as well. We report that
sublethal exposure to Temprid SC has variable aberrant effects on bed bugs
depending on the strain, including: a reduction in male mating success and
delayed oviposition by females. However, after sublethal exposure, egg
hatch rate consistently declined in every strain tested, anywhere from
34%-73%. Conversely, impact on fifth instar eclosion time was not
significant. While the strains that we tested varied in their respective
magnitude of sublethal effects, taken together, these effects could reduce
bed bug population growth. These changes in bed bug behavior and fecundity
could lead to improved efficacy of Temprid SC in the field, but recovery
of impacted bugs must be considered in future studies. Sublethal effects
should not be overlooked when evaluating insecticide efficacy, as it is
likely that other products may also have indirect effects on population
dynamics that could either aid or inhibit successful management of pest
populations.
Development Time After Sublethal ExposureTime taken for 5th instars to
molt to adults after sublethal exposure to
Temprid.DevelopmentTime.xlsxMate Choice With Untreated Female Bed
BugsMating choice made when male bed bugs have been exposed to water or
Temprid. Female bed bugs were not exposed to Temprid. U = Not exposed to
Temprid. T = Exposed to Temprid.MateChoiceFemales.xlsxMate Choice with
Untreated Male Bed BugsMating choice made by males (not exposed to
Temprid) when females were exposed to either water or Temprid. U = Exposed
to water. T = exposed to Temprid.MateChoiceMales.xlsxSublethal Exposure
After Mating Egg Laying Over TimeFecundity trials when females had
sublethal exposure to Temprid after mating occurred. Includes number of
eggs laid daily for both treatment (exposure to Temprid) and control
(exposed to water) females. Replicate is equal to one individual female
bed bug (12 female bed bugs per treatment). Median day of egg laying is
also included as a separate
sheet.SublethalExposureAfterMatingEggLayingOverTime.xlsxSublethal Exposure
Before MatingNumber of eggs laid by mating pairs when sublethal exposure
to Temprid occurred before mating. U= Untreated T = Treated M = Male F =
Female. "Virgin bed bug" sheet refers to bed bugs that were
virgin prior to the study, and only includes two treatments: UFUM and
TFTM.SublethalExpsoureBeforeMating.xlsx