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Researchers ID Queens, Mysterious Disease Syndrome as Key Factors in Bee Colony Deaths

A new long-term study of honey bee health has found that a little-understood disease study authors are calling “idiopathic brood disease syndrome” (IBDS), which kills off bee larvae, is the largest risk factor for predicting the death of a bee colony.

“Historically, we’ve seen symptoms similar to IBDS associated with viruses spread by large-scale infestations of parasitic mites,” says Dr. David Tarpy, an associate professor of entomology at North Carolina State University and co-author of a paper describing the study. “But now we’re seeing these symptoms – a high percentage of larvae deaths – in colonies that have relatively few of these mites. That suggests that IBDS is present even in colonies with low mite loads, which is not what we expected.” The study was conducted by researchers from NC State, the University of Maryland, Pennsylvania State University and the U.S. Department of Agriculture (USDA). (more…)

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