U.S. report finds decline in bees multifaceted

May 02, 2013

USDA, EPA release scientific report on honeybee health

The U.S. Department of Agriculture (USDA) and the U.S. Environmental Protection Agency (EPA) released a report Thursday on honeybee health. The report highlights the latest emerging research on honey bees, which was discussed at a bee health conference held in Oct. 2012.

The report found that there are multiple factors contributing to bee colony decline including – parasites, disease, genetics, poor nutrition, and pesticide exposure. There is some cause for concern, as the report emphasis the important role that bees play in American agriculture and food productivity. The researchers say that the forces behind bee health are complex and will require more research.

Highlights from the report:

•Parasites and disease pose a risk – Varroa mite is a major factor to colony loss and new virus species have been found, with several being association with Colony Collapse Disorder.
•More genetic diversity needed – genetic variation improves bee’s ability to regulate body temperature. Beekeepers are encouraged to focus bee breeding on traits like hygienic behaviour.
•Poor nutrition is a major factor among many colonies – Bees need a variety of plants to support good colony health. Poor diet can is harmful as it can make bees more susceptible to diseases.

The report concludes by saying that more research is needed to determine the risk presented by pesticides. Widespread disappearance of honeybees was first noticed in 2006.

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