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Article: University of Minnesota professor says colony collapse disorder likely has multiple causes
- Article from:
- La Crosse Tribune
- Article date:
- November 3, 2007
- Author:
CopyrightCopyright La Crosse Tribune Nov 3, 2007. Provided by ProQuest LLC. (Hide copyright information)
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A combination of factors likely has led to the phenomenon dubbed colony collapse disorder in honeybees, a University of Minnesota professor said Friday.
American honeybees are under more stress from such things as varroa mites that have become resistant to treatment, old wax combs that harbor disease spores and chemical residue, reduced forage and diversity that leads to poor bee nutrition, pesticides and increased transportation of bee colonies to pollinate commercial crops, said Marla Spivak, professor of apiculture and social insects.
Most recently, researchers are paying more attention to the effects of the Israeli acute paralysis virus and Nosema parasites on honeybees, Spivak told ...