This tiny technology allows researchers to analyse the effects of stress factors including disease, pesticides, air pollution, water contamination, diet and extreme weather on the movements of bees and their ability to pollinate. The GIHH will unite the efforts of scientists, beekeepers and farmers conducting experiments, providing and sharing information, publishing joint-reports, and advancing our knowledge on bee health to identify management responses which support industry and government to secure the one third of our food supplies that rely on honeybee pollination.
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A combination of insecticides and mite weakens honeybees
In the present work, honeybee colonies exposed to two neonicotinoids thiamethoxam and clothianidin via pollen paste feeding, did not affect honeybee worker mass or longevity. However, when in combination with V. Whilst a negative synergism was observed for body mass in both summer and autumn, it was only observed for survival 16 weeks post neonicotinoid colony exposure. The revealed results suggest a previously overlooked time-lag effect of neonicotinoid exposure. Because honeybee colonies in temperate regions must produce significant quantities of long-living winter bees to survive, the observed negative synergistic effects on individual winter honeybee longevity are most likely compromising colony survivorship.
Due to the present evidence for interactions between insecticides and mites, the authors stress the importance of developing sustainable agro-ecosystem management and varroa-management schemes. Materials provided by University of Bern. Note: Content may be edited for style and length.
Calculating and reporting managed honey bee colony losses
Science News. A negative combination Two stressors having a clear negative impact on the health of honeybees are insecticides and the ubiquitous ectoparasitic mite Varroa destructor. Sustainable solutions required "Beekeepers in many regions of the world face losses of their colonies, which are far too high," says Prof. Story Source: Materials provided by University of Bern. Neonicotinoids and ectoparasitic mites synergistically impact honeybees.
Honey Bee Colony Health PDF | Science | Bee, Honey, Bee keeping
Scientific Reports , ; 9 1 DOI: ScienceDaily, 4 June University of Bern. A combination of insecticides and mite weakens honeybees. Retrieved September 22, from www.