A long-term field study on the effects of dietary exposure of clothianidin to varroosis-weakened honey bee colonies.

ABSTRACT: Clothianidin is a commonly used systemic insecticide in seed treatments. Residues of clothianidin can occur in nectar and pollen as a result of within-plant-translocation. Foraging bees can collect contaminated nectar or pollen. Concerns have been brought forward that exposure to pesticide residues might affect colonies especially if they are weakened by varroosis. However, there are few scientific studies investigating such multiple-stressor scenarios in the context of the entire colony. To close this gapa field trial with 24 colonies was set up. The study design comprised four groups of six colonies each fed with uncontaminated sugar syrup ('C0'), or syrup spiked with 10 μg L^-1 clothianidin ('C10'), 50 μg L^-1 clothianidin ('C50') or 200 μg L^-1 clothianidi

SUBMITTER: Siede R 

PROVIDER: S-EPMC6133000 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature