Study: Pesticides Not Cause of Honey Bee Problems

September 16, 2009 at 1:05 pm 2 comments

An international team of scientists published a paper studying the possible causes of Colony Collapse Disorder (CCD) which as affected managed honey bee colonies in the U.S. The study was published on PLoS ONE, a journal published by the Public Library of Science. The article is available at: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0006481#top

The study compared the risk factors between hive populations afflicted by and not afflicted by CCD. The sutdy found that bees in CCD colonies had higher pathogen levels than control populations. The affected hives were also co-infected with a greater number of pathogens. The researchers suggest that an increased exposure to pathogens or a reduced resistance of bees toward pathogens could be a cause. The researchers, led by the Pennsylvania state apiarist Dennis vanEnglesdorp, suggest that CCD involved an interaction between pathogens and other stress factors.

Source: EPA Office of Pesticide Programs

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2 Comments

  • 1. Roy Neher  |  October 6, 2009 at 12:05 pm

    Hi,
    I believe that the widespread usage of pine needle smoke
    is responsible for the plight of the Honey Bee.
    Below is a study on pine needle smoke and what got my attention
    was the statement that many micro organisms thrive in it.
    Thanks, Roy Neher

    http://dsc.discovery.com/news/2009/04/30/forest-fire-toxin.html

    April 30, 2009 — Scientists have discovered a new class of chemicals emitted from burning pine trees. From a family of compounds known for their ability to alter human DNA, the findings could change the way we look at the impact of forest fires on public health.

    Alkaloids are commonly found in nature; plants produce them to help bolster the structure of leaves and pine needles, and they can be key nutrients to the right organisms. Many are prized for their beneficial effects on humans, while a select few, like morphine and caffeine are downright addictive.

    But in high enough doses, alkaloids can be potent toxins.

    Now Alexander Laskin and a team of researchers from the Pacific Northwest National Laboratory in Washington have discovered close to 100 different alkaloids in microscopic smoke particles lofting up from laboratory-simulated forest fires.

    “When roots, leaves and needles get burned, these chemicals can be released without modification into the atmosphere,” Laskin said. “They can be translated as aerosol particles hundreds or thousands of miles. It is possible that there is an impact on humans, animals, and that they get into the groundwater.”

    • 2. andykleinschmidt  |  October 6, 2009 at 4:46 pm

      Thanks for the comment and link Roy.


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