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)
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
Published May 02, 2018 on Dryad.
Cite this dataset
Crawley, Sydney E. et al. (2018). 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) [Dataset]. Dryad. https://doi.org/10.5061/dryad.rr762
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 (Temprid® 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 Exposure
Time taken for 5th instars to molt to adults after sublethal exposure to Temprid.
Mate Choice With Untreated Female Bed Bugs
Mating 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.
Mate Choice with Untreated Male Bed Bugs
Mating 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.
Sublethal Exposure After Mating Egg Laying Over Time
Fecundity 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.
Number 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.