Neonicotinoid exposure increases Varroa destructor (Mesostigmata: Varroidae) mite parasitism severity in honey bee colonies and is not mitigated by increased colony genetic diversity

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Author(s)Bartlett, Lewis J.
Author(s)Alparslan, Suleyman
Author(s)Bruckner, Selina
Author(s)Delaney, Deborah A.
Author(s)Menz, John F.
Author(s)Williams, Geoffrey R.
Author(s)Delaplane, Keith S.
Date Accessioned2024-06-28T17:56:02Z
Date Available2024-06-28T17:56:02Z
Publication Date2024-05-28
DescriptionThis article was originally published in Journal of Insect Science published by Oxford University Press. The version of record is available at: https://doi.org/10.1093/jisesa/ieae056. © The Author(s) 2024. Published by Oxford University Press on behalf of Entomological Society of America. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
AbstractAgrochemical exposure is a major contributor to ecological declines worldwide, including the loss of crucial pollinator species. In addition to direct toxicity, field-relevant doses of pesticides can increase species’ vulnerabilities to other stressors, including parasites. Experimental field demonstrations of potential interactive effects of pesticides and additional stressors are rare, as are tests of mechanisms via which pollinators tolerate pesticides. Here, we controlled honey bee colony exposure to field-relevant concentrations of 2 neonicotinoid insecticides (clothianidin and thiamethoxam) in pollen and simultaneously manipulated intracolony genetic heterogeneity. We showed that exposure increased rates of Varroa destructor (Anderson and Trueman) parasitism and that while increased genetic heterogeneity overall improved survivability, it did not reduce the negative effect size of neonicotinoid exposure. This study is, to our knowledge, the first experimental field demonstration of how neonicotinoid exposure can increase V. destructor populations in honey bees and also demonstrates that colony genetic diversity cannot mitigate the effects of neonicotinoid pesticides.
SponsorThis research was supported by the USDA National Institute of Food and Agriculture Crop Protection and Pest Management program award number 2017–70006-27266, the Foundation for Food and Agricultural Research Pollinator Health Fund 549033, the USDA National Institute of Food and Agriculture Multi-state Hatch project NC1173, the Alabama Agricultural Experiment Station, the USDA ARS Cooperative Agreement 6066-21000-001-02-S, the Swiss National Science Foundation Project 31003A_169751, and the California State Beekeepers’ Association. Technical assistance was further provided by Jack Garrison and Jennifer Berry.
CitationLewis J Bartlett, Suleyman Alparslan, Selina Bruckner, Deborah A Delaney, John F Menz, Geoffrey R Williams, Keith S Delaplane, Neonicotinoid exposure increases Varroa destructor (Mesostigmata: Varroidae) mite parasitism severity in honey bee colonies and is not mitigated by increased colony genetic diversity, Journal of Insect Science, Volume 24, Issue 3, May 2024, 20, https://doi.org/10.1093/jisesa/ieae056
ISSN1536-2442
URLhttps://udspace.udel.edu/handle/19716/34545
Languageen_US
PublisherJournal of Insect Science
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
Keywordsneonicotinoid
Keywordspesticide
Keywordsparasite
Keywordsgenetic diversity
Keywordspollinator
TitleNeonicotinoid exposure increases Varroa destructor (Mesostigmata: Varroidae) mite parasitism severity in honey bee colonies and is not mitigated by increased colony genetic diversity
TypeArticle
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