Domestic Gardens Mitigate Risk of Exposure of Pollinators to Pesticides-An Urban-Rural Case Study Using a Red Mason Bee Species for Biomonitoring

0536360 - ÚVGZ 2021 RIV CH eng J - Journal Article
Šlachta, Martin - Erban, T. - Votavová, A. - Bešta, Tomáš - Skalský, M. - Vaclavikova, M. - Halesova, T. - Edwards-Jonášová, Magda - Včeláková, Renata - Cudlín, Pavel
Domestic Gardens Mitigate Risk of Exposure of Pollinators to Pesticides-An Urban-Rural Case Study Using a Red Mason Bee Species for Biomonitoring.
Sustainability. Roč. 12, č. 22 (2020), č. článku 9427. E-ISSN 2071-1050
R&D Projects: GA TA ČR(CZ) TH03030134
Institutional support: RVO:86652079 ; RVO:60077344
Keywords : oilseed rape seeds * apis-mellifera * honey-bees * neonicotinoid insecticide * solitary bee * widespread contamination * foraging distances * collected pollen * coated seeds * residues * Osmia bicornis * urban green space * wild bees * fungicides * insecticides * pyrimethanil * boscalid * thiacloprid * acetamiprid
OECD category: Agronomy, plant breeding and plant protection; Biodiversity conservation (BC-A)
Impact factor: 3.251, year: 2020
Method of publishing: Open access
https://www.mdpi.com/2071-1050/12/22/9427

Domestic gardens supply pollinators with valuable habitats, but the risk of exposure to pesticides has been little investigated. Artificial nesting shelters of a red mason bee species (Osmia bicornis) were placed in two suburban gardens and two commercial fruit orchards to determine the contamination of forage sources by pesticides. Larval pollen provisions were collected from a total of 14 nests. They consisted mainly of pollen from oaks (65-100% weight/sample), Brassicaceae (<= 34% w/s) and fruit trees (<= 1.6% w/s). Overall, 30 pesticides were detected and each sample contained a mixture of 11-21 pesticide residues. The pesticide residues were significantly lower in garden samples than in orchard samples. The difference was attributed mainly to the abundant fungicides pyrimethanil and boscalid, which were sprayed in fruit orchards and were present on average at 1004 ppb and 648 ppb in orchard samples, respectively. The results suggested that pollinators can benefit from domestic gardens by foraging from floral sources less contaminated by pesticides than in adjacent croplands.
Permanent Link: http://hdl.handle.net/11104/0314139