Originally published October 25 2012
Overwhelming evidence shows pesticides are destroying bees
by Jonathan Benson, staff writer
(NaturalNews) As reported recently by the U.K.'s Guardian, a new study published in the journal Nature is the latest in a long line of recent studies to show that common crop chemicals are destroying bee populations worldwide, which will also eventually destroy much of the world's food supply if left unaddressed. And even though at least two-thirds of the world's bumblebee population is now likely dying off as a result of combined pesticide exposures, regulatory bodies in the U.K., the U.S., and elsewhere continue to deny that these harmful chemicals need to be banned.
A much greater threat than so-called global "climate change," the decline in bee populations due to pesticide and herbicide exposure is one of the most serious environmental threats in the world today. Without bees, food crops that rely on these important insects for pollination will wither and die, causing widespread food shortages. For this reason, ecology experts are urging government authorities to rediscover their consciences by standing up against this chemical-induced insect genocide, which has the very real potential to eventually unleash human genocide.
One of the ways in which they are accomplishing this is by drawing attention to studies like the recent Nature study, which clearly illustrates the fact that bees are severely threatened by combined exposures to multiple pesticide chemicals. Since bees encounter potentially hundreds of pesticide chemicals in real-world conditions, studying such exposures in a laboratory setting was the goal of the new research.
"Work in my lab is building on previous work looking at neonicotinoids, the systemic pesticides that are used extensively in agriculture at the moment," said Nigel Raine of Royal Holloway, University of London, author of the study, in a recent video report. "What we're doing is we're looking at the effects of multiple pesticides, not just the neonicotinoids but also pyrethroids, which is the sort of situation that bees are faced with in the field. They visit multiple crop species which may have different pesticides applied to them."
Most bumblebees die after being exposed to both pesticides
After closely monitoring bumblebees exposed to low levels of two different pesticide chemicals for four weeks, Raine and his colleague Richard Gill observed that individual bee performance suffered considerably. Combined exposure to both neonicotinoids and imidacloprid, two common pesticide chemicals, caused worker bees to perform at levels far lower than other bees. And it is precisely the cumulative effect of exposure to both chemicals, which many previous studies involving bees have failed to address, that is the most striking.
Another interesting discovery was the fact that two-thirds of the bees exposed to both chemicals ended up dying, compared to just one-third of those not exposed to both chemicals. This further illustrates the fact that previous studies analyzing the effects of only one pesticide chemical, and for just a few days rather than several weeks, ignore the actual, real-life exposures to multiple pesticide chemicals that many bees throughout the world face.
Many industry-funded studies, after all, which have been used by government regulators to approve these dangerous chemicals in the first place, erroneously conclude that certain pesticide chemicals are safe simply because they did not necessarily elicit immediate harm during the few days in which their effects were studied. Pesticide harm often takes weeks to be observed, which makes Raine's study far more accurate in its assessment of long-term pesticide damage in bees.
Be sure to check out the full video interview with both Raine and Gill at: http://youtu.be/1-fXYR9FTfM
Sources for this article include:
http://www.nature.com/news/the-buzz-about-pesticides-1.11626
http://www.guardian.co.uk
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