Author ORCID Identifier
Edwin R. Burgess: https://orcid.org/0000-0002-8144-0897
Bethia H. King: https://orcid.org/0000-0003-0435-5928
Publication Title
Environmental Entomology
ISSN
0046225X
E-ISSN
19382936
Document Type
Article
Abstract
Foreign materials like insecticides may increase grooming in insects; and generally, grooming may be expected to reduce effects of insecticides, but this may not be the case when grooming involves the mouth and hence a risk of ingestion. To examine this, female Spalangia endius, a wasp that parasitizes filth fly pupae, were exposed to a surface coated with a low concentration of imidacloprid or not. Their mouthparts were sealed or not to determine whether sealing is a useful method for examining effects of mouth grooming. Wasps mouth-groomed more frequently while exposed to imidacloprid than when not. However, imidacloprid did not increase the number of times that a wasp groomed the rest of her body, and this was true regardless of whether or not her mouthparts were sealed. While exposed to imidacloprid, wasps spent less time locomoting only if their mouthparts were not sealed. Having been exposed to imidacloprid also decreased subsequent longevity, from 9 to 7 d. These effects of imidacloprid on grooming, locomotion, and longevity occurred despite exposure being for just 5 min and to only 2% of the amount that will be present in an area immediately after house fly baits are scattered at their recommended coverage. This is such a low amount that, with 48 h of constant exposure, mortality of these wasps is only 10%. Having mouthparts sealed decreased locomotion and longevity regardless of exposure to imidacloprid. Thus, sealing mouthparts is not useful for measuring effects of mouth grooming.
First Page
566
Last Page
571
Publication Date
4-22-2020
DOI
10.1093/ee/nvaa040
PubMed ID
32318728
Keywords
behavioral toxicology, grooming, imidacloprid, locomotion, parasitoid wasp
Recommended Citation
Burgess, E. R., and B. H. King. 2020. A field-relevant concentration of the insecticide imidacloprid affects grooming, locomotion, and longevity in the biological control agent Spalangia endius (Hymenoptera: Pteromalidae). Environ. Entomol. 49: 566-571. https://doi.org/10.1093/ee/nvaa040
Original Citation
Burgess, E. R., and B. H. King. 2020. A field-relevant concentration of the insecticide imidacloprid affects grooming, locomotion, and longevity in the biological control agent Spalangia endius (Hymenoptera: Pteromalidae). Environ. Entomol. 49: 566-571. https://doi.org/10.1093/ee/nvaa040
Fulltext File with Record
1
Department
Department of Biological Sciences
Comments
This is a pre-copyedited, author-produced version of an article accepted for publication in Environmental Entomology following peer review. The version of record Burgess, E. R., and B. H. King. 2020. A field-relevant concentration of the insecticide imidacloprid affects grooming, locomotion, and longevity in the biological control agent Spalangia endius (Hymenoptera: Pteromalidae). Environ. Entomol. 49: 566-571. is available online at: https://doi.org/10.1093/ee/nvaa040.