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Insects 2017, 8(1), 30; doi:10.3390/insects8010030

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Department of Entomology, Michigan State University, East Lansing, MI 48824, USA
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Academic Editor: Brian T. Forschler
Received: 14 November 2016 / Revised: 2 March 2017 / Accepted: 3 March 2017 / Published: 9 March 2017
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Abstract

We conducted a bee survey in neonicotinoid-treated commercial potato fields using bowl and vane traps in the 2016 growing season. Traps were placed outside the fields, at the field edges, and 10 and 30 m into the fields. We collected 756 bees representing 58 species, with Lasioglossum spp. comprising 73% of all captured bees. We found seven Bombus spp., of which B. impatiens was the only known visitor of potato flowers in our region. The majority of the bees (68%) were collected at the field edges and in the field margins. Blue vane traps caught almost four-times as many bees and collected 30% more species compared to bowl traps. Bee communities did not differ across trap locations but they were different among trap types. We tested B. impatiens visitation to neonicotinoid treated and untreated potato flowers in field enclosures. The amount of time bees spent at flowers and the duration of visits were not significantly different between the two treatments. Our results demonstrate that a diverse assemblage of bees is associated with an agroecosystem dominated by potatoes despite the apparent lack of pollinator resources provided by the crop. We found no difference in B. impatiens foraging behavior on neonicotinoid-treated compared to untreated plants. View Full-Text
Keywords: blue vane trap; bowl trap; Lasioglossum spp.; Bombus spp.; Solanum tuberosum blue vane trap; bowl trap; Lasioglossum spp.; Bombus spp.; Solanum tuberosum
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Buchanan, A.L.; Gibbs, J.; Komondy, L.; Szendrei, Z. Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants. Insects 2017, 8, 30.

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