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EPA May Reduce “Conditional Registrations” of Pesticides after Finding Process Flawed

Wednesday, May 4th, 2011

(Beyond Pesticides, May 4, 2011) According to a U.S. Environmental Protection Agency (EPA) internal review of pesticide registrations under special circumstances, also known as “conditional registration,” the agency may reduce its use of this “imprecise” category, whilch allows widespread use of toxic chemicals not fully tested. Conditional registration of pesticides allows market entry for a product in the absence of certain data. Recent reports have found that certain conditionally registered pesticides known to be hazardous to pollinators were allowed to used by EPA without a full data set. In an April 25, 2011 post on its website, EPA provides details on its recently completed internal review on the use of conditional registration for pesticide products. The agency has come under scrutiny recently since it was revealed that the conditionally registered pesticide, clothianidin, did not at the time it allowed the pesticide to be widely used have pertinent field data required on honeybees, even though the pesticide is known to pose risks to these vulnerable pollinators. This data is still outstanding even though clothianidin continues to be used in the environment. Conditional registration is allowed under Section 3(c)(7) of the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA), whilch allows pesticide registration […]

Posted in Clothianidin, Pesticide Regulation, Pollinators | No Comments »

EPA Rejects Immediate Action On Pesticide Toxic To Bees

Wednesday, February 23rd, 2011

(Beyond Pesticides, February 23, 2011) In response to a request by beekeepers and environmentalists to remove a pesticide linked to Colony Collapse Disorder (CCD), the U.S. Environmental Protection Agency (EPA) in a letter, defended the pesticide clothianidin and the scientific study in question which was identified by beekeepers as a critically flawed study. EPA states that it does not intend to suspend or cancel clothianidin, even though independent studies have linked this chemical and others in its class to bee decline. Beyond Pesticides, as a part of a group of environmentalists and beekeepers, broke the news last December that a core study underpinning the registration of the insecticide clothianidin was unsound, citing leaked EPA memos which discloses the critically flawed scientific study and its reclassification as a “core” study on which clothianidin’s conditional registration was contingent on, to a “supplemental” study. Bayer CropSceicne, manufacturer of clothianidin designed and submitted to study to EPA as part of clothianidin’s registration requirement. Beekeepers claim that the initial field study guidelines, which the Bayer study failed to satisfy, were insufficiently rigorous to test whether or not clothianidin contributes to CCD in a real-world scenario: the field test evaluated the wrong crop, over an insufficient […]

Posted in Clothianidin, Pollinators | 1 Comment »

EPA Asked to Pull Pesticide Linked to Bee Kills

Thursday, December 9th, 2010

(Beyond Pesticides, December 9, 2010) Beekeepers and environmentalists called on the U.S. Environmental Protection Agency (EPA) December 8, to remove a pesticide linked to Colony Collapse Disorder (CCD), citing a leaked EPA memo that discloses a critically flawed scientific support study. The November 2nd memo identifies a core study underpinning the registration of the insecticide clothianidin as unsound after EPA quietly re-evaluated the pesticide just as it was getting ready to allow a further expansion of its use. Clothianidin (product name “Poncho”) has been widely used as a seed treatment on many of the country’s major crops for eight growing seasons under a “conditional registration” granted while EPA waited for Bayer Crop Science, the pesticide’s maker, to conduct a field study assessing the insecticide’s threat to bee colony health. Bayer’s field study was the contingency on which clothianidin’s conditional registration was granted in 2003. As such, the groups are calling for an immediate stop-use order on the pesticide while the science is redone, and redesigned in partnership with practicing beekeepers. They claim that the initial field study guidelines, which the Bayer study failed to satisfy, were insufficiently rigorous to test whether or not clothianidin contributes to CCD in a real-world […]

Posted in Announcements, Clothianidin, Pesticide Regulation, Pollinators | 4 Comments »

Report Reviews Links between Breast Cancer and Environmental Exposures

Tuesday, October 5th, 2010

(Beyond Pesticides, October 5, 2010) A new report by the Breast Cancer Fund, a national organization working to eliminate the environmental causes of breast cancer, presents a summary of the scientific data on the environmental causes of the disease. The report catalogs the growing evidence linking breast cancer to, among other factors: synthetic hormones in pharmaceuticals, cosmetics and meat; pesticides in food; solvents in household cleaning products; BPA in food containers; flame retardants in furniture; and radiation from medical treatments. The report also highlights impacts on the most vulnerable populations (including infants, pregnant women, African-American women and workers), and outlines the policy initiatives required to develop a national breast cancer prevention plan. The report, State of the Evidence: The Connection Between Breast Cancer and the Environment, is the sixth edition published by the Breast Cancer Fund. “With each new edition of the report, the growing scientific evidence compels us to act to prevent breast cancer,” said Jeanne Rizzo, RN, president of the Breast Cancer Fund. “This Breast Cancer Awareness Month, our message is clear: we must move beyond awareness to prevention.” The report states that a woman’s lifetime risk of breast cancer is 1 in 8””representing a dramatic increase since […]

Posted in 2,4-D, Aldrin, Atrazine, Breast Cancer, Chemicals, Dieldrin, Disease/Health Effects | 2 Comments »

Nanosilver Particles Can Stop Sperm Cells from Growing

Friday, September 3rd, 2010

(Beyond Pesticides, September 3, 2010) New research shows that silver nanomaterials, which are used in a number of consumer products as antimicrobial agents, can interrupt important cell signaling within male reproductive sperm cells, causing them to stop growing. In previous studies, scientists reported how smaller-sized silver nanoparticles — in the 10 – 25 nanometer range — decrease the growth of male stem cells when they are exposed at concentrations greater than 10 micrograms per milliliter (Î¼g/ml). This new study, on the other hand, is the first to identify how the silver nanoparticles stop the sperm stem cells from growing, with the biggest effects from the smallest-sized nanoparticles tested. Like many other studies on the effects of nanotechnology, this study raises important questions about the potential hazards to human health due to the prolific use of silver nanoparticles in the market. Researchers tested the effects of different sizes, concentrations and coatings of silver nanoparticles on cell growth of mouse sperm cells. They compared silver nanoparticles coated with either hydrocarbons — at 15 nm, 25 nm and 80 nm diameters — or sugars — at 10 nm, 25 – 30 nm and 80 nm diameter. Exposure to the smaller sized particles led […]

Posted in Antibacterial, Disease/Health Effects, Nanotechnology | No Comments »

Increase in Reported Incidents Prompts EPA to Review Pet Products

Wednesday, March 24th, 2010

(Beyond Pesticides, March 24, 2010) Due to a significant increase in adverse incidents, the U.S. Environmental Protection Agency (EPA) is taking a series of actions aimed at increasing the safety of spot-on pesticide products for flea and tick control for cats and dogs. EPA will begin reviewing labels to determine which ones will require new instructions and labeling for on-spot flea products. EPA began investigating the products after discovering a sharp rise in the number of dogs and cats reported to be sick. Incidents reported by consumers rose from 28,895 in 2007 to 44,263 in 2008, an increase of 53 percent. The products investigated, including the popular Frontline and Advantage brands, are small vials of liquid pesticides that pet owners apply monthly to the backs of dogs or cats to kill fleas and ticks. EPA began investigating the products after discovering a sharp rise in the number of pets reported to be sick after they were treated. The year long investigation, conducted by a team of veterinarians assembled by the agency, concluded that certain pets — small dogs between 10 and 20 pounds — are most susceptible to the problems, which include rashes, vomiting, diarrhea and seizures. EPA plans to […]

Posted in Permethrin, Pets | No Comments »

Herbicide Contaminates Home Gardens

Wednesday, July 2nd, 2008

(Beyond Pesticides, July 2, 2008) Gardeners in the United Kingdom (UK) have been warned not to eat home-grown vegetables that have been exposed to the new and persistent herbicide, aminopyralid. Domestic gardens and allotments have been contaminated by manure originating from farms where the herbicide aminopyralid was sprayed on fields. All across the UK harvests of withered and rotten potatoes, beans, peas, carrots, salad vegetables and deformed tomatoes have been reported by confused and angry gardeners. It is believed that contamination of manure arose after grass was treated with aminopyralid 12 months ago. Experts say the grass was probably made into silage, and then fed to cattle during the winter months. The herbicide remained present in the silage, passed through the animal and into manure that was later sold. Aminopyralid is gaining popularity with farmers, who spray it on grassland to control weeds such as docks, thistles and nettles without affecting the grass around them. Dow AgroSciences, which manufactures aminopyralid, has made a statement on their website saying: ‘As a general rule, we suggest damaged produce (however this is caused) should not be consumed.’ Those who have already used contaminated manure are advised not to replant on the affected soil […]

Posted in aminopyralid, Chemicals, clopyralid, Lawns/Landscapes | 3 Comments »

Wheat Embargo in Kansas Raises Concerns About Pesticide Residues

Thursday, June 26th, 2008

(Beyond Pesticides, June 26, 2008) Over 7,500 acres of winter wheat in 15 Kansas counties were sprayed improperly with the fungicide Quilt, forcing the Kansas Department of Agriculture to put an embargo on harvestable wheat from these fields pending further tests. Farmers are legally required to wait 45 days between spraying Quilt and harvesting wheat, but this spring’s wet weather encouraged many to ignore the rules. The problem was discovered during a paperwork check of custom applicators, which revealed that some fields had been sprayed as recently as early June. Quilt, manufactured by Syngenta and registered with the Environmental Protection Agency (EPA) in 2003, is a combination of the two active ingredients azoxystrobin and propiconazole. Propinconazole is a fungicide and antimicrobial with registered uses on food and feed crops, turf and ornamentals, as well as wood and material preservation. It is estimated that 1.7 million acres of wheat alone is treated with propinconazole each year. Azoxystrobin was first conditionally registered with the EPA in 1997 for use on turf. Information on the usage of the combination of these two fungicides is unavailable because of the recent registrations. Unfortunately, the USDA has cut funding for pesticide reporting (see Daily News of […]

Posted in Azoxystrobin, Kansas, Propiconazole | No Comments »

Scientists Call for “Inert” Ingredient Disclosure

Tuesday, January 23rd, 2007

(Beyond Pesticides, January 23, 2007) Citing an extensive body of literature illustrating the concern over related human and environmental health effects, recent commentary in Environmental Health Perspectives continues the call for improvements in pesticide regulation and “inert” ingredient disclosure. The authors, Caroline Cox, Ph.D., research director at the Center for Environmental Health, and Michael Surgan, Ph.D., chief scientist in the Office of the Attorney General of New York State, highlight the regulatory weaknesses that allow the “inert” ingredients in pesticide formulations to go largely untested. In response, they are calling for a pesticide registration process that requires full assessment of formulations and full disclosure on product labels. “Inert” refers to ingredients in a pesticide formulation that have been added to the active ingredient to serve a variety of functions, such as acting as solvents, surfactants, or preservatives. However, the common misconception is that “inert” ingredients are physically, chemically, or biologically inactive substances. The Environmental Protection Agency (EPA) has stated that “many consumers have a misleading impression of the term ”˜inert ingredient,’ believing it to mean water or other harmless ingredients.” The commentary provides evidence that “inerts” are often far from harmless and need to be examined closely for environmental, wildlife […]

Posted in Pesticide Regulation | No Comments »

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