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Www.ars.usda.gov/is/ Br/ccd/ccdprogressre Port2012.pdf

ccdprogressreport2012.pdf

🔗 Source: ars.usda.gov

📊 Size: 630 KB

👤 Author: amendoza

⬇️ Downloads: 175

Summary

The 2012 annual progress report on Colony Collapse Disorder (CCD) describes research progress during 2011, mandated by Congress in the 2008 Farm Bill. A survey of managed honey bee colonies found overall losses of 22% on average during winter 2012, down from 33% in 2010. Although factors like parasites, poor nutrition, pesticides, and habitat fragmentation are associated with CCD, no single cause has been proven. Recent evidence suggests some pesticides may have sublethal effects on honey bees, but the relevancy to overall risks is uncertain. The CCD Steering Committee is examining current knowledge and identifying new research needs to determine the cause of CCD and declining pollinator health.

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Description

The 2012 annual progress report on Colony Collapse Disorder (CCD) describes research progress during 2011, mandated by Congress in the 2008 Farm Bill.

Technical Information

File Format: PDF
File Size: 630 KB
Pages: 13
Language: EN
Author: amendoza
Total Downloads: 175
Last Updated: 4 weeks ago

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