Neonicotinoid Pesticide Reduces Bumble Bee Colony Growth and Queen Production

@article{Whitehorn2012NeonicotinoidPR,
  title={Neonicotinoid Pesticide Reduces Bumble Bee Colony Growth and Queen Production},
  author={Penelope R. Whitehorn and Stephanie O’Connor and Felix L. Wackers and Dave Goulson},
  journal={Science},
  year={2012},
  volume={336},
  pages={351 - 352}
}
Bad News for Bees Neonicotinoid insecticides were introduced in the early 1990s and have become one of the most widely used crop pesticides in the world. These compounds act on the insect central nervous system, and they have been shown to be persistent in the environment and in plant tissues. Recently, there have been controversial connections made between neonicotinoids and pollinator deaths, but the mechanisms underlying these potential deaths have remained unknown. Whitehorn et al. (p. 351… Expand
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References

SHOWING 1-10 OF 40 REFERENCES
Risk assessment for side-effects of neonicotinoids against bumblebees with and without impairing foraging behavior
TLDR
It is recommended that behavior tests should be included in risk assessment tests for highly toxic pesticides because impairment of the foraging behavior can result in a decreased pollination, lower reproduction and finally in colony mortality due to a lack of food. Expand
Effects of Novel Pesticides on Bumble Bee (Hymenoptera: Apidae) Colony Health and Foraging Ability
TLDR
Use of an artificial flower foraging array proved to be a sensitive method for detecting sublethal response of bees to pesticides, suggesting that bumble bee colonies will not be harmed by proper use of these pesticides. Expand
Multiple Routes of Pesticide Exposure for Honey Bees Living Near Agricultural Fields
TLDR
The results demonstrate that bees are exposed to neonicotinoid compounds and several other agricultural pesticides in several ways throughout the foraging period, and clarify some of the mechanisms by which honey bees may be exposed to agricultural pesticides throughout the growing season. Expand
Hazards of Insecticides to the Bumble Bees Bombus impatiens (Hymenoptera: Apidae) Foraging on Flowering White Clover in Turf
TLDR
Exposure to dry nonirrigated residues of all of the aforementioned insecticides had severe impact on colony vitality, while foraging activity of wild bumble bees was monitored on open plots to determine if insecticide-treated areas were avoided. Expand
A meta-analysis of experiments testing the effects of a neonicotinoid insecticide (imidacloprid) on honey bees
TLDR
Findings raise renewed concern about the impact on honey bees of dietary imidacloprid, but because questions remain over the environmental relevance of predominantly laboratory-based results, targets for research are identified and procedural recommendations for future studies are provided. Expand
Hazards of Imidacloprid Seed Coating to Bombus terrestris (Hymenoptera: Apidae) When Applied to Sunflower
TLDR
It was concluded that applying imidacloprid at the registered dose, as a seed coating of sunflowers cultivated in greenhouse or in field, did not significantly affect the foraging and homing behavior of B. terrestris and its colony development. Expand
Correlates of reproductive success among field colonies of Bombus lucorum: the importance of growth and parasites
TLDR
Investigation of how the presence of parasites in field populations of the bumble bee Bombus lucorum L. relates to variation in life history traits and reproductive performance provides a heuristic approach to understand the factors that affect reproductive success of Bombus colonies. Expand
Risk posed to honeybees (Apis mellifera L, Hymenoptera) by an imidacloprid seed dressing of sunflowers.
In a greenhouse metabolism study, sunflowers were seed-treated with radiolabelled imidacloprid in a 700 g kg-1 WS formulation (Gaucho WS 70) at 0.7 mg AI per seed, and the nature of the resultingExpand
Sub‐lethal effects of imidacloprid on bumblebees, Bombus terrestris (Hymenoptera: Apidae), during a laboratory feeding test
TLDR
It was concluded that the survival rate and reproductive capacity of B terrestris was not likely to be affected by prolonged ingestion of nectar produced by sunflower after seed-dressing treatment with imidacloprid (Gaucho), since honey or pollen collected by honeybees foraging treated sunflower never revealed concentrations of imidcloprid higher than 10 µg kg−1. Expand
Quantification of imidacloprid uptake in maize crops.
TLDR
The PEC/PNEC risk ratios were determined and ranged between 500 and 600 for honeybees foraging on maize treated with imidacloprid by seed dressing, a high risk factor that can be related to one of the main causes of honeybee colony losses. Expand
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