Journal
NATURE ECOLOGY & EVOLUTION
Volume 3, Issue 11, Pages 1521-1524Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41559-019-1011-2
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Funding
- Biotechnology and Biological Sciences Research Council [BB/P504774/1]
- Bayer AG [BB/P504774/1]
- BBSRC [1929566] Funding Source: UKRI
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Recent research has shown that several managed bee species have specific P450 enzymes that are preadapted to confer intrinsic tolerance to some insecticides including certain neonicotinoids. However, the universality of this finding across managed bee pollinators is unclear. Here we show that the alfalfa leafcutter bee, Megachile rotundata, lacks such P450 enzymes and is >2,500-fold more sensitive to the neonicotinoid thiacloprid and 170-fold more sensitive to the butenolide insecticide flupyradifurone than other managed bee pollinators. These findings have important implications for the safe use of insecticides in crops where M. rotundata is used for pollination, and ensuring that regulatory pesticide risk assessment frameworks are protective of this species.
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