Systemic pesticides, such as neonicotinoids, move up through a plant, producing contaminated pollen and nectar. And after the first frost, when outside food is no longer available, the bee colony is affected by any contaminates in the food they stored from the summer, he explained. Honeybees are also fed by beekeepers, some of whom use sugar. These days, however, many large operations routinely feed bees with high fructose corn syrup (HFCS).
The birds and the bees – and high fructose corn syrup
A recent study, published last June in the Bulletin of Insectology by Chensheng Lu, an associate professor at Harvard School of Public Health, gives further support to Hackenberg’s suspicions of the neonicotinoids. And Lu’s study brings up another way for bees to consume the pesticides — through the HFCS fed to them by beekeepers.
In Lu’s study, colonies were fed HFCS treated with one of the nicotine pesticides, imidacloprid, which resulted in the collapse of almost every test hive, all showing the same pattern consistent with the CCD seen by beekeepers. Corn seed, which is still widely treated with the neonictinoids, received extra high doses of the chemical several years ago, just around the time CCD was first being recognized.Asteroid deciding whether to visit or not...
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