Navigation Links
Pesticide build-up could lead to poor honey bee health
Date:8/18/2008

w them to meet national and international standards.

"When we began doing this work, honey was not regularly analyzed, and bee pollen was not a commodity and so was not analyzed," says Mullin. "We decided to go with the types of screening the lab does for milk and apples which look at over 170 pesticides. Now, honey is included in the commodities to be analyzed."

The researchers, including Roger Simonds, a chemist at the National Science Laboratory decided on a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method because it uses smaller samples. They coupled this with gas and liquid chromatography to develop methods of analyzing pollen, bees and wax.

"Simplicity was important because there were many people across the country sampling for us," says Maryann Frazier. "Now rather than having them collect 15 grams of pollen they need only collect 3 grams."

The researchers note that this method also uses less solvent and generates data in the parts per billion range.

While beekeepers will have a difficult time controlling pesticide exposure outside the hive, the researchers tested a method for reducing the acaricide load in beeswax. Using gamma radiation from a cobalt 60 source housed at Penn State's Breazeale Reactor, they irradiated the sheets of beeswax that beekeepers use as the structural foundation for the bees to build their combs. They used radiation levels at the high end of that used to irradiate foods. Irradiation broke down about 50 percent of the acaricides in the wax.

"Gamma radiation is often used to kill viruses and other disease causing agents," says James L. Frazier, professor of entomology, Penn State. "Commercial irradiation firms usually decontaminate medical instruments or foods."

The researchers tried irradiation at a commercial plant and though some modifications were necessary to irradiate the wax sheets, it is possible. Some beekeepers already irradiate their equ
'/>"/>

Contact: Andrea Elyse Messer
aem1@psu.edu
814-865-9481
Penn State
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Pesticides persist in ground water
2. Fruit fly helps identify protein critical to eggshell formation that may be pesticide target
3. Alternatives to ozone-depleting pesticide studied
4. 100 percent of people carry at least 1 type of pesticide
5. Satellites help ensure efficient use of pesticides
6. Alternative methods proposed to detect pesticides and antibiotics in water and natural food
7. CABI helps phase out dangerous pesticide in EU
8. Synthetic moleculues could add spice to fight against cancer
9. Brown tree snake could mean Guam will lose more than its birds
10. Medical doctors who do research could be a dying breed
11. Guilt on their hands: tiny tags could help to solve and deter gun crime
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... that under the normal circumstances, astrocytes participate ... neuronal environment, and exhibit therapeutic and repairing ... Previous studies have found that nerve cells ... induction have reduced viability, which produces influences ... Yuan, Kailuan General Hospital, Hebei United University, ...
(Date:7/11/2014)... Rio de Janeiro, Brazil- In the brains of ... mechanism that allows an electric or chemical signal ... another. Chemical synapses, which are the most abundant ... inhibitory. Synapse formation is crucial for learning, memory, ... and inhibitory synapses critical for brain function. ...
(Date:7/10/2014)...  Aware, Inc. (NASDAQ: AWRE ), a ... on June 26, 2014 that its Board of Directors ... share, or approximately $40 million in total.  The Board ... a payment date of July 24, 2014.  The Company ... an ex-dividend date for this special cash dividend.  An ...
Breaking Biology News(10 mins):Blame it on the astrocytes 2NASDAQ Sets Ex-Dividend Date for Aware, Inc.'s Special Cash Dividend of $1.75 Per Share 2
... President and Scientific Director and Director of the Hematopoiesis ... cliniques de Montral (IRCM), and his team was recently ... the American Society of Hematology. The researchers found that ... cells, which could lead to a better treatment for ...
... University of California, Riverside Bourns College of Engineering ... recently awarded a five-year, $6.25 million grant to ... for soldiers increasingly reliant on electronic devices. ... department of environmental and chemical engineering, and researchers ...
... Amid growing concern that synthetic life sciences pose biosecurity ... DNA sequence trade. Research published today in the ... looks at the necessity of a global regulator for ... Synthetic life sciences are making breakthroughs at a ...
Cached Biology News:A scientific breakthrough could be the first step in a better treatment for leukemia patients 2Research aims to lighten load carried by soldiers 2Technology to screen for synbio abuses lags 2Technology to screen for synbio abuses lags 3
(Date:7/10/2014)... OMICS Group’s 5th International conference and ... 2014 at Double Tree by Hilton Beijing, China is ... Analytical & Bioanalytical research methods only to facilitate improved ... occasion, Dr. Srinubabu Gedela, MD of OMICS Group Inc ... remarkable one in bringing a unique and international mix ...
(Date:7/10/2014)... Senior supply chain management executives from over ... challenges of “Reducing Cost, Lead Time, & Defects in ... Describing the partnership of the Bio Supply Management Alliance ... ( SCMI) of the University of San Diego ... Kroc Institute of Peace and Justice in San Diego, ...
(Date:7/10/2014)... , July 10, 2014 On ... Dmitry Medvedev , presented Russia,s ... BIOCAD . The Company is developing a unique project ... project BIOCAD develops a number of innovative drugs based ... diseases. The ceremony took place at the International Exhibition ...
(Date:7/10/2014)... , July 10, 2014 /PRNewswire-iReach/ -- ... and interpretation, today announced an agreement with ... analytics for Lineagen,s NextStep Dx PLUS.  ... neurodevelopmental and neurological disorders, currently offers FirstStep ... (CMA) testing service used by healthcare providers ...
Breaking Biology Technology:A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4
... somehow survived where other traditional marketing tools and old ... must face harsher realities once again, all to ensure ... Web sites are simply doomed. While billions of Web ... clash into the billions of surfing customers and simply ...
... Ted Kanavas, R-Brookfield, called on the Legislature and the ... Development Fund. , ,The fund would use existing information ... Administration and segregate a portion of the funds for ... would not flow into this fund. , ,This fund ...
... Corporation and First Data Corporation jointly ... provides for the purchase of substantially all of the ... approximately $610 million in cash. As the majority shareholder ... million and NYCE will become a Metavante subsidiary. , ...
Cached Biology Technology:The mysteries and the future of Web sites 2The mysteries and the future of Web sites 3The mysteries and the future of Web sites 4Metavante and First Data to buy PIN-debit company NYCE 2