A Higher Load Of Pathogens Linked To Colony Collapse Disorder

Viruses, bacteria, and fungi appear to have the strongest link with Colony Collapse Disorder found so far, according to a new study published by Agricultural Research Service (ARS) and university scientists.

The study was headed by Pennsylvania State University entomologist Dennis vanEngelsdorp and entomologist Jeff Pettis, geneticist Jay Evans, and virologist Yanping Chen with the ARS Bee Research Laboratory in Beltsville, MD. The scientists looked at more than 200 variables in 91 colonies from 13 apiaries in Florida and California, two states where many beekeepers overwinter their honey bees. The researchers screened for factors such as bacteria, mites, Nosema (protozoan parasites), viruses, nutrition status and 171 crop protectants. Also sampled were adult bees, wax comb, beebread (stored and processed pollen), and brood.

Their findings showed that no single variable was found consistently in only those honey bee colonies that had Colony Collapse Disorder (CCD). CCD is a syndrome denoted by the sudden disappearance of adult honey bees in a colony.This syndrome has been devastating some beekeepers in the U.S. and other places around the world.

According to the research, overall, CCD colonies were co-infected with a greater number of pathogens. About 55% of CCD colonies were infected with three or more viruses, compared to 28% of non-CCD colonies. The researchers also found detectable levels of residues from 50 crop protectants in all of the sampled colonies. There was no association between increased pesticide levels and CCD.

A report that summarizes research progress on CCD can be found at www.ars.usda.gov/is/br/ccd/ccd_progressreport.pdf
 

Source: USDA-ARS
 

Leave a Reply

2 comments on “A Higher Load Of Pathogens Linked To Colony Collapse Disorder

  1. Which came first?

    It is hard to determine whether the colony developed CCD because of increased pathogens, or if the pathogens are responding to an already declining colony. Thanks for the updates on such a vital part of FL agriculture and enviro-science!

  2. Which came first?

    It is hard to determine whether the colony developed CCD because of increased pathogens, or if the pathogens are responding to an already declining colony. Thanks for the updates on such a vital part of FL agriculture and enviro-science!

Featured Stories
Photo credit: Christina Herrick
Stone Fruit
September 28, 2016
New Research Gets To The Bottom Of Cherry Cracking
German researchers hope to identify root causes of rain-induced problem. Read More
Part of a sustainable cropping system includes desiging fields to wrap around hilly terrain to limit runoff and soil erosion.  Photo credit: Rosemary Gordon
Farm Management
September 28, 2016
Grants Available For Sustainable Ag In The West
More than $1 million is marked for grants to study, demonstrate, and improve sustainable ag practices. Read More
Organic farmer on tractor
Equipment
September 28, 2016
Small Tractor Sales On The Rebound
Retail sales of tractors under 40 horsepower gained more than 21% last month, while sales of larger tractors continued their double-digit declines. Read More
NOAA Temperature Outlook For Winter 2015-2016
Farm Management
September 28, 2016
The Time For Climate Change Denial Is Over [Opinion]
Extreme cold, droughts, flooding, record-setting temperatures have all been a part of this year’s growing season. Read More
Cosmis Crisp apples planting FEATURE
Fruits
September 27, 2016
Focusing On Phenomics In Specialty Crops
It’s not just the nature of your crops — the genomics — it’s also how they are nurtured. Read More
Bob Bender (center) accepts American Vegetable Grower's 2016 Grower Achievement Award from Lonny Smith of AgroLiquid, the award's sponsor, and American Vegetable  Grower editor Rosemary Gordon
Grower Achievement Award
September 27, 2016
Tasteful Selections Is The Recipient Of American Vegetable Grower’s 2016 Grower Achievement Award
The award was presented to Bob Bender of Tasteful Selections Sept. 13 at United Fresh's Washington Conference. Read More
Urban vegetable farm in rural Cuba
Fruits
September 27, 2016
Rodale Institute Launches An Organic Farming Association
A new national organization for organic growers is designed to provide advocacy, the latest research and education, and information-sharing among farmers. Read More
Marco Rubio tours a Central Florida citrus grove with industry dignitaries
Farm Management
September 27, 2016
Politicians May Be Taking Ag For Granted [Opinion]
Growers have become masters at ensuring a steady food supply, but warning, politicians: Ignore them at your peril. Read More
U.S. Capitol Building FEATURE
Citrus
September 26, 2016
Presidential Candidates Comment On Agricultural Issues
Hillary Clinton and Donald Trump weigh in on a number of topics of concern to growers. Read More
'Rave' is a cross between 'Honeycrisp' and an unreleased variety called ‘MonArk.' 'Rave' was bred by the University of Minnesota and will be grown and sold exclusively by Stemilt in the U.S. (Photo credit: Stemilt)
Apples & Pears
September 26, 2016
New Apple Variety Is One Stemilt Hopes Consumers Will ‘Rave’ About
University of Minnesota apple variety will be grown and packed exclusively by Stemilt. Read More
The Latest
Stone Fruit
September 28, 2016
New Research Gets To The Bottom Of Cherr…
German researchers hope to identify root causes of rain-induced problem. Read More
Farm Management
September 28, 2016
Grants Available For Sustainable Ag In T…
More than $1 million is marked for grants to study, demonstrate, and improve sustainable ag practices. Read More
Equipment
September 28, 2016
Small Tractor Sales On The Rebound
Retail sales of tractors under 40 horsepower gained more than 21% last month, while sales of larger tractors continued their double-digit declines. Read More
Farm Management
September 28, 2016
The Time For Climate Change Denial Is Ov…
Extreme cold, droughts, flooding, record-setting temperatures have all been a part of this year’s growing season. Read More
Fruits
September 27, 2016
Focusing On Phenomics In Specialty Crops
It’s not just the nature of your crops — the genomics — it’s also how they are nurtured. Read More
Grower Achievement Award
September 27, 2016
Tasteful Selections Is The Recipient Of …
The award was presented to Bob Bender of Tasteful Selections Sept. 13 at United Fresh's Washington Conference. Read More
Fruits
September 27, 2016
Rodale Institute Launches An Organic Far…
A new national organization for organic growers is designed to provide advocacy, the latest research and education, and information-sharing among farmers. Read More
Farm Management
September 27, 2016
Politicians May Be Taking Ag For Granted…
Growers have become masters at ensuring a steady food supply, but warning, politicians: Ignore them at your peril. Read More
Citrus
September 26, 2016
Presidential Candidates Comment On Agric…
Hillary Clinton and Donald Trump weigh in on a number of topics of concern to growers. Read More
Apples & Pears
September 26, 2016
New Apple Variety Is One Stemilt Hopes C…
University of Minnesota apple variety will be grown and packed exclusively by Stemilt. Read More
Grapes
September 26, 2016
Where Site And Growing System Meet In Th…
Vineyard manager uses growing systems to control vigor of winegrape varieties. Read More
Fruits
September 26, 2016
San Jose Scale Is An Old Pest That Is A …
Growers see increase in infestations due to changes in chemical control programs. Read More
Citrus
September 26, 2016
Florida Sugarcane Industry Strengthening…
Pot sweetens with promotions for three executive staffers of the state’s Growers Cooperative. Read More
Citrus Achievement Award
September 26, 2016
Hope Growing Around Bactericides As A Ci…
Citrus Achievement Award winner Marty McKenna is optimistic about new approach to staving off HLB. Read More
Cucurbits
September 25, 2016
10 Cantaloupe And Melon Varieties You Ne…
Browse this slideshow for more information on 10 cantaloupe and melon varieties you need to know about from the nation’s leading Read More
Farm Marketing
September 25, 2016
New York Governor Signs Additional Legis…
Bills allow farm wineries, breweries, and cideries to sell New York-made farm beverages by the glass. Read More
Farm Management
September 24, 2016
Water Woes Continue In Northeast
Hydrologist says this year’s conditions are bad but are part of a typical water cycle. Read More
Berries
September 24, 2016
Time Is Now For Florida Blueberry Grower…
Coming off a challenging season, industry players must continue to adapt to curveballs thrown by Mother Nature and market forces. Read More
[gravityform id="62" title="false" description="false"]