Search Results
Tuesday, January 24th, 2012
(Beyond Pesticides, January 24, 2012) Research published this month in the online edition of the Bulletin of Environmental Contamination and Toxicology finds that the neonicotinoid pesticide imidacloprid contaminates surface waters in agricultural regions. Imidacloprid is a systemic pesticide, meaning it is taken up by a plant’s vascular system and expressed through pollen, nectar, and gutation droplets, and is highly toxic to bees, birds and aquatic organisms. The study, “Detections of the Neonicotinoid Insecticide Imidacloprid in Surface Waters of Three Agricultural Regions of California, USA, 2010—2011,” concludes that imidacloprid commonly moves offsite and contaminates surface waters at concentrations that could harm aquatic organisms following use under irrigated agriculture conditions. Researchers at the California Department of Pesticide Regulation collected 75 surface water samples from three agricultural regions of California and analyzed them for contamination with imidacloprid. Samples were collected during California’s relatively dry-weather irrigation seasons in 2010 and 2011. Imidacloprid was detected in 67 samples (89%); concentrations exceeded the U.S. Environmental Protection Agency’s (EPA) chronic invertebrate Aquatic Life Benchmark of 1.05 ĂŽÂĽg/L (micrograms per liter) in 14 samples (19%). Concentrations were also frequently greater than similar toxicity guidelines developed for use in Europe and Canada. A benchmark is a chemical concentration, specific […]
Posted in Imidacloprid, Pollinators, Water, Wildlife/Endangered Sp. | No Comments »
Thursday, January 12th, 2012
(Beyond Pesticides, January 12, 2012) The U.S. Food and Drug Administration (FDA) says it will step up testing for a fungicide not registered for use in the U.S. that has been found in low levels in orange juice. The fungicide, carbendazim, does not have any food tolerances and thus its presence in orange juice is unlawful under the Federal Food, Drug, and Cosmetic Act. Despite this, FDA does not intend to take action to remove from domestic commerce orange juice containing the reported low levels of carbendazim, but will deny future imports. FDA said in a letter to the Juice Products Association that an unnamed juice company contacted the agency in late December and said it had detected low levels of carbendazim, a fungicide, in the company’s own orange juice and also its competitors’ juice. Carbendazim is not currently approved for use on citrus in the U.S., but is used in Brazil, which exports orange juice to the U.S. Testing found levels up to 35 parts per billion (ppb) of the fungicide, far below the European Union’s maximum residue level of 200 ppb. The U.S. does not have an established maximum residue level (tolerance level) for carbendazim in oranges. According […]
Posted in Agriculture, Carbendazim, Pesticide Regulation | No Comments »
Wednesday, January 11th, 2012
(Beyond Pesticides, January 11, 2012) On January 10, beekeepers from across the country gathered at a national conference, with environmental organizations at their side, to draw attention to the growing plight facing their industry —the decline of honey bees, a problem that has far reaching implications for the U.S. economy. The disappearance of the bees alerts us to a fundamental and systemic flaw in our approach to the use of toxic chemicals -and highlights the question as to whether our risk assessment approach to regulation will destroy our food system, environment, and economy. “Bees and other pollinators are the underpinnings of a successful agricultural economy,” said Brett Adee, Co-Chair of the National Honey Bee Advisory Board and owner of Adee Honey Farms. “Without healthy, successful pollinators, billions of dollars are at stake.” Many family-owned beekeeping operations are migratory, with beekeepers traveling the country from state-to-state, during different months of the year to provide pollination services and harvest honey and wax. Bees in particular are responsible for pollinating many high-value crops, including pumpkins, cherries, cranberries, almonds, apples, watermelons, and blueberries. So any decline in bee populations, health and productivity can have especially large impacts on the agricultural economy (see factsheet). Honey […]
Posted in Agriculture, Clothianidin, Imidacloprid, Pollinators, Thiamethoxam | No Comments »
Tuesday, January 10th, 2012
(Beyond Pesticides, January 10, 2012) A Purdue University study shows that honey bees’ exposure to the highly toxic neonicotinoid pesticide clothianidin, as well as thiamethoxam, is greater than previously thought. Beyond Pesticides, as a part of a coalition of beekeeping and environmental groups, challenged the Environmental Protection Agency (EPA) in a December 2010 letter for allowing the continued use of this bee-killing pesticide after EPA admitted in a leaked memo that its field study on bees is inadequate. The study, “Multiple Routes of Pesticide Exposure for Honey Bees Living Near Agricultural Fields,” was published January 3, 2012 in the online edition of PLoS ONE. Like other neonicotinoid pesticides, clothianidin is a systemic pesticide, which is taken up by a plant’s vascular system and expressed through pollen, nectar, and gutation droplets. It is most commonly applied by seed treatment. Most pesticides that are toxic to bees carry a warning that the product cannot be applied while foraging bees are present. As this study shows, systemic pesticides continue to expose and poison bees throughout foraging season. The study authors decided to take a closer look at clothianidin routes of exposure because of its prevalence in honey bee pollen and comb material, combined […]
Posted in Agriculture, Chemicals, Clothianidin, Pollinators, Thiamethoxam | No Comments »
Wednesday, November 23rd, 2011
(Beyond Pesticides, November 23, 2011) A Federal Court of Canada has ordered Health Canada -the nation’s public health department- to take a second look at the impacts on amphibians of glyphosate-based pesticides, one of the most widely-used pesticides in Canada and the U.S., which includes products like Monsanto’s Roundup. The decision was the result of an action brought by a pesticide-activist and pediatrician, Josette Wier, M.D., and orders Health Canada to address requests by the public for a review of the safety of a pesticide where there is serious scientific concern about its risks. Dr. Wier’s legal challenge focused on wetlands that provide critical habitat for many species of frogs and amphibians. The original request for a special review of glyphosate-pesticides, especially those containing the “inert” ingredient polyoxyethyleneamine (POEA), and a subsequent 2009 legal challenge was brought because of her concern about possible aerial spraying of Monsanto’s pesticide in the forests near her community in Smithers. In her suit, Dr. Weir stated that the evidence “challenges the scientific validity of the previous evaluations” that led to the registration of the glyphosate herbicides containing POEA. Judge Michael Kelen of the Federal Court of Canada in his decision wrote, “[Dr. Wier] is […]
Posted in Glyphosate, International, Monsanto, Wildlife/Endangered Sp. | No Comments »
Friday, October 28th, 2011
(Beyond Pesticides, October 28, 2011) St. Louis-based chemical and seed giant Monsanto Co. has purchased a company called Beeologics, which has developed a product intended to counteract viral agents that plague honey bee colonies in an attempt to stem the effects of Colony Collapse Disorder (CCD). However, advocates wonder whether the antiviral agent will result in any significant decline of CCD when bees around the country and across the world continue to be exposed to highly toxic pesticides that are known to have serious effects on a range of pollinators, including honey bees. Beeologics was founded in 2007 and is headquartered in both Florida and Israel. The company’s antiviral agent, called Remembee, is designed to fight a virus that is commonly thought to be a contributing factor to CCD. According to the St. Louis Post-Dispatch, Monsanto spokesperson Kelly Powers said that, “I don’t need to tell you how important bees are to farmers who rely on pollination, and Remembee has great promise, pending approvals.” The product is currently being reviewed for potential commercial sale by the U.S. Food and Drug Administration. Efforts to counteract CCD are commendable, as a range of factors, including viruses as well as colony invaders such […]
Posted in Monsanto, Pollinators | 1 Comment »
Tuesday, October 25th, 2011
(Beyond Pesticides, October 25, 2011) Farmers in California and other states have begun planting bee-friendly flowers and shrubs to attract bees, whose populations have been severely declining in recent years under a complex set of circumstances. Farmers hope to sustain native bees and strengthen dwindling honey bee populations as well as lower their pollination costs. For many farmers that rely on bees to pollinate their crops, creating safe bee habitat and reducing chemical assaults can help stem the tide of declining pollinator populations. These efforts, organized by the Xerces Society, a Portland, Ore.-based nonprofit group, and other organizations are aimed to educate and help farmers boost dwindling wild pollinator populations needs to pollinate their crops. According to Xerces Society, as part of their pollinator conservation program, farmers and land managers are trained with the latest science-based approaches to reversing the trend of pollinator declines. California farmers are provided seeds for native plants like wild rose, aster, sage, manzanita, and other shrubs and trees to entice bees. New bee habitat can also reduce a farmer’s costs and alleviate the stress on honey bees. “For bees to thrive, they need a diverse diet, so we’re trying to bring more pollen diversity to […]
Posted in California, Pollinators | 1 Comment »
Monday, October 24th, 2011
(Beyond Pesticides, October 24, 2011) This article is reprinted from the SafeLawns blog by Paul Tukey. Mr. Tukey, the founder of SafeLawns.org, is an American journalist, author, filmmaker and motivational public speaker, who has a particular expertise in environmental issues related to landscape management and water quality. We thank Paul for all of his tremendous work and for the opportunity to discuss on the safelawns.org blog the 30-year history of Beyond Pesticides’ work and the vision and purpose of our work. We will be hosting a reception with live music and screening of the film Vanishing of the Bees on Thursday, October 27th, 6:30 pm at Busboys and Poets (14th and V Streets NW) in Washington, DC. For more information and to RSVP, click here. Read Mr. Tukey’s interview below with Beyond Pesticides Executive Director Jay Feldman, discussing the accomplishments of the last 30 years: Paul Tukey: This coming Thursday, Oct. 27, a remarkable achievement will be marked in Washington, D.C., when Beyond Pesticides celebrates its 30th anniversary. Beginning at 6:30 p.m. at Busboys & Poets, leaders of the environmental movement will come together with the general public for a benefit reception with live music and organic food and drinks. […]
Posted in Alternatives/Organics, Announcements, Events | No Comments »
Tuesday, October 18th, 2011
(Beyond Pesticides, October 18, 2011) The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) recently announced the availability of a draft environmental impact statement (EIS) that evaluates the potential environmental effects of deregulating (commercializing) sugar beets genetically engineered (GE) to be resistant to the herbicide glyphosate, commonly referred to as Roundup Ready (RR) sugar beets. APHIS considered three alternatives in the draft EIS: deny the petition seeking a determination of nonregulated status (prohibit commercial planting), make a determination of nonregulated status (allow commercial planting), or extend the partial deregulation of RR sugar beets for the root crop, with mandatory conditions and restrictions. Comments will be accepted until December 13, 2011. APHIS originally deregulated RR sugar beets in 2005. A coalition of environmental groups and organic seed companies, led by the Center for Food Safety, challenged the USDA approval in 2008. It argued that GE sugar beets would contaminate organic and non-GE farmers of related crops, such as table beets and chard, as well as increase pesticide impacts on the environment and worsen the current Roundup-resistant “superweeds” epidemic in U.S. agriculture. In September 2009, Judge Jeffrey S. White in the federal district court in San Francisco agreed, […]
Posted in Genetic Engineering, Glyphosate, Monsanto | 6 Comments »
Tuesday, October 4th, 2011
(Beyond Pesticides, October 4, 2011) In September, Bayer CropScience announced that it plans to phase-out its most acutely toxic pesticides, all remaining World Health Organization (WHO) class I products, by the end of 2012. While this is a positive development, Beyond Pesticides points out that other Bayer pesticides, such as its bee-killing insecticides imidacloprid and clothianidin, will remain on the market. Activists around the globe have mixed reactions to Bayer’s announcement, which comes over 15 years after Bayer first promised to phase-out its WHO Class I products. Philipp Mimkes of the Coalition Against Bayer Dangers based in Germany said, “This is an important success for environmental organizations from all over the world who have fought against these deadly pesticides for decades. But we must not forget that Bayer broke their original promise to withdraw all class I products by the year 2000. Many lives could have been saved. It is embarrassing that the company only stopped sales because the profit margins of these chemical time bombs have fallen so much.” Acutely toxic pesticides with a WHO Class I rating are extremely toxic and present an immediate hazard to farmworkers and others in the vicinity of pesticide applications. The WHO estimates […]
Posted in Agriculture, Bayer, Chemicals, Corporations, Pollinators | No Comments »
Tuesday, September 6th, 2011
(Beyond Pesticides, September 6, 2011) Scientists in France have discovered that honey bees are at a higher risk of dying from infection by Nosema ceranae (N. ceranae) when they are exposed to low doses of insecticides. The results, presented in the journal PLoS ONE, support the theory that combining more N. ceranae with high pesticide content in beehives could contribute to colony depopulation. The French study, “Exposure to Sublethal Doses of Fipronil and Thiacloprid Highly Increases Mortality of Honeybees Previously Infected by Nosema ceranae,” brought together researchers from the Laboratoire Microorganismes: GĂ©nome et Environnment and the Laboratoire de Toxicologie Environnment who utilized their respective skills in parasitology and toxicology to assess the effect of pathogen/toxin interactions on bee health. In the laboratory, the researchers chronically exposed newly emerged honey bees, some healthy and others infected with Nosema ceranae, to low doses of insecticides: fipronil and thiacloprid. They found that the infected bees died when they were chronically exposed to insecticides, even at sublethal doses, unlike the healthy bees. This combined effect on honeybee mortality was observed with daily exposure to extremely low doses (over 100 times less than the LD50 or dose needed to kill 50% of the sample population, […]
Posted in Fipronil, Pollinators | No Comments »
Thursday, August 4th, 2011
(Beyond Pesticides, August 4, 2011) At least 21 different species of weeds are found to be resistant to the herbicide glyphosate, commonly sold as Roundup and used across thousands of acres of “RoundUp Ready” genetically engineered (GE) crops, according to a series of studies in the current issue of Weed Science. Palmer amaranth, one of the weeds discussed in the journal, can reduce yields of cotton by more than 50 percent if there is a density of at least 10 of these weeds per row. Fifty-two counties in the state of Georgia had infestations of glyphosate-resistant Palmer amaranth last year. Studies confirm that the weed, which also competes with soybean, corn, grain sorghum and peanut crops, is also resistant to the herbicide phrithiobac in addition to glyphosate. Over-application and over-reliance by farmers on glyphosate to solve all of their weed problems has led to the proliferation of so-called “super weeds,” which have evolved to survive the treatments through repeated exposure. The most common species which have evolved these traits include pigweed (palmer amaranth), mare’s tail, and ryegrass. The spread of resistance is what has led farmers to increasingly rely on more toxic alternative mixtures, including weed killers like atrazine. There […]
Posted in Genetic Engineering, Georgia, Glyphosate, Resistance | No Comments »
Thursday, July 28th, 2011
(Beyond Pesticides, July 28, 2011) A new report released last week finds that the U.S. Environmental Protection Agency’s (EPA) voluntary program to evaluate chemicals fails to protect children. According to the evaluation report by EPA’s Inspector General, the Voluntary Children’s Chemical Evaluation Program (VCCEP) was hampered by industry’s refusal to voluntarily collect and submit information and the agency’s failure to regulate under the Toxic Substances Control Act (TSCA) to collect the data. The report states what environmental groups have known for years: “EPA has not demonstrated that it can achieve children’s health goals with a voluntary program.” According to the Inspector General (IG), these failures led to only a fraction of the chemical assessments for the pilot being completed. IG found that VCCEP’s pilot was critically flawed and that the design of the program “did not allow for the desired outcomes to be produced.” It had a flawed chemical selection process and lacked an effective communication strategy. VCCEP is no longer operational and EPA has no plans to revive, replace, or terminate the program. The program was set up as part of the Chemical Right-to-Know Initiative in 1998 to ensure that there are adequate publicly available data to assess the […]
Posted in Children/Schools, Pesticide Regulation | No Comments »
Friday, July 1st, 2011
(Beyond Pesticides, July 1, 2011) The U.S. Environmental Protection Agency (EPA) has granted emergency approval for the use of the neonicotinoid pesticide dinotefuran to control brown marmorated stink bugs in seven eastern states. Dinotefuran is a member of the neonicotinoid family of systemic pesticides that is known to be highly toxic to bees and associated with Colony Collapse Disorder. The states of Delaware, Maryland, New Jersey, North Carolina, Pennsylvania, Virginia, and West Virginia had previously asked EPA for emergency approval of the pesticide due to a ballooning stink bug population. The short term emergency measure became effective June 24 and will expire on October 15 of this year. Dinotefuran is already approved by EPA for use on other crops, such as grapes, cotton, and some vegetables. The emergency approval relates to the pesticide’s use on orchard crops such as apples, pears, peaches, and nectarines, for which it has not previously been allowed. Growers of those crops will now be able to apply dinotefuran from the ground twice per season. The agency will allow a total of 29,000 orchard acres to be treated, which does not include applications to the previously approved crops. Under a controversial stipulation known as a Section […]
Posted in Agriculture, brown marmorated stink bug, dinotefuron, Invasive Species, Pesticide Regulation, Pollinators | 1 Comment »
Monday, June 13th, 2011
(Beyond Pesticides, June 13, 2011) A new report released early last week shows that industry regulators have known for a long time that glyphosate, the active ingredient in the world’s best selling herbicide, RoundUp, causes birth defects. The report, “RoundUp and Birth Defects: Is the public being kept in the dark?” published by Earth Open Source, says that regulators misled the public about the safety of glyphosate for over 20 years. According to the report, the German government has known since 1998 and the EU Commission’s expert scientific review panel has known since 1999 that glyphosate causes malformations. As recently as last year, however, the German Federal Office for Consumer Protection and Food Safety told the Commission that there was no evidence of glyphosate causing birth defects. Meanwhile, these actions by industry and regualtors that have kept the public in the dark, the authors point out, has seriously endangered public health. Considering that Monsanto, as well as other producers of genetically engineered (GE) seeds are now pushing for glyphosate-tolerant crop approval in Europe, this is particularly disconcerting. If the Commission grants the approval as the U.S. Department of Agriculture (USDA) had done for GE alfalfa and sugar beets in the […]
Posted in Birth defects, Glyphosate, International | 2 Comments »
Friday, June 10th, 2011
(Beyond Pesticides, June 10, 2011) A report released jointly by the U.S. Department of Agriculture’s (USDA) Agricultural Research Service (ARS) and the Apiary Inspectors of America (AIA) shows that losses of honeybee populations over the 2010/2011 winter remained abnormally high, reflecting continuing damages attributed to colony collapse disorder (CCD). CCD, linked to a range of factors and agricultural chemicals, including systemic pesticides, has devastated bees and beekeepers around the country in recent years. According to the survey, 30% of managed honeybee colonies across the country were lost over the winter. Over the past five years, since the discovery of CCD, annual winter colony losses have hovered near the 30% mark. Similar loss percentages for the previous four years reflect this trend: 34% for the 2009/2010 winter, 29% for 2008/2009, 36% for 2007/2008, and 32% for 2006/2007. ARS entomologist Jeffrey Pettis, PhD, who helped to conduct the survey and has been the agency’s lead researcher on CCD heading up the USDA Bee Research Laboratory, said, “The lack of increase in losses is marginally encouraging in the sense that the problem does not appear to be getting worse for honey bees and beekeepers. But continued losses of this size put tremendous pressure […]
Posted in Clothianidin, Imidacloprid, Pollinators | 1 Comment »
Friday, June 3rd, 2011
(Beyond Pesticides, June 3, 2011) According to the 2010 Agricultural Chemical Use Report released last week by the U.S. Department of Agriculture’s (USDA) National Agricultural Statistics Service (NASS), use of the herbicide glyphosate, associated with genetically engineered (GE) crops, has dramatically increased over the last several years, while the use of other even more toxic chemicals such as atrazine has not declined. Contrary to common claims from chemical manufacturers and proponents of GE technology that the proliferation of herbicide tolerant GE crops would result in lower pesticide use rates, the data show that overall use of pesticides has remained relatively steady, while glyphosate use has skyrocketed to more than double the amount used just five years ago. The 2010 Agricultural Chemical Use Report shows that, in the states surveyed, 57 million pounds of glyphosate were applied last year on corn fields. Ten years prior, in 2000, this number was only 4.4 million pounds, and in 2005, it was still less than half of current numbers at 23 million pounds. Intense corn growing regions have experienced an even greater increase in glyphosate applications. Glyphosate use in the state of Nebraska increased by more than five times in just seven years, going […]
Posted in Agriculture, Atrazine, Genetic Engineering, Glyphosate, Litigation | 2 Comments »
Wednesday, April 20th, 2011
(Beyond Pesticides, April 20, 2011) Last Thursday, U.S. Senator Frank R. Lautenberg (D-NJ) introduced legislation to update and modernize the Toxic Substances Control Act of 1976 (TSCA) which has allowed tens of thousands of toxic substances onto the marketplace with little or no testing. The new ”˜Safe Chemicals Act of 2011,’ utilizing risk assessment methology, would, in theory, require chemical companies to prove their products are “safe” for human health and the environment when allowed in commerce. While creating priority reviews for the higher tisk categories of chemicals, many analysts are concerned that continued exclusive reliance on risk assessment with its serious uncertainties and lack of attention to least toxic alternatives allows unnecessary toxic chemical use and undermines a precautionary approach. Sen. Lautenberg, who chairs the Senate Subcommittee on Superfund, Toxics and Environmental Health, seeks to require that chemical manufacturers demonstrate the safety of industrial chemicals used in everyday household products. “The Safe Chemicals Act of 2011” would require safety testing of all industrial chemicals, and puts the burden on industry to prove that chemicals are safe in order to get on or stay on the market. Currently, EPA may not regulate a chemical unless it can first prove that […]
Posted in Chemicals, National Politics, Pesticide Regulation | No Comments »
Friday, April 1st, 2011
(Beyond Pesticides, April 1, 2011) A British government scientist on Wednesday announced that he has ordered a review of a class of pesticides known as neonicotinoids, to determine what effects they may have on bee and pollinator health. Neonicotinoids, such as clothianidin and imidacloprid, have come under intense scrutiny recently due to concerns regarding their toxicity to honeybees, which are essential for a secure food supply in their role as crop pollinators. This has led some to suggest that chemicals such as these could be contributors to honeybee Colony Collapse Disorder (CCD). According to the London Daily Mail, the chief scientist at the UK Department of Environment, Food and Rural Affairs (DEFRA), Professor Robert Watson, has directed DEFRA scientists to reexamine findings on neonicotinoids and their effects on bees. The Mail suggests that Watson may have been partly motivated by a recent study done by Dr. Jeffrey Pettis of the U.S. Department of Agriculture’s Agricultural Research Service. This study was the first to show that neonicotinoids impact the survival of bees at levels below the level of detection, meaning that field studies would not have considered the role of the pesticide, because they would not have detected it. Although a […]
Posted in Clothianidin, Imidacloprid, Pollinators | No Comments »
Friday, February 25th, 2011
(Beyond Pesticides, February 25, 2011) The U.S. Environmental Protection Agency (EPA) has released a new report detailing sales and usage of pesticides in the U.S. for the years 2006 and 2007 and showing a modest decrease in pesticide use. The report compiles data from EPA, the U.S. Department of Agriculture (USDA), and other sources in order to track pesticide trends and monitor usage. Previous industry use reports had been published every two years between 1994 and 2001; however, the last report was published ten years ago, in 2001, leaving a gap in the data. In one of the more promising findings, the report shows that pesticide use in the country did decrease throughout most of the last decade. Use of conventional pesticides, measured in pounds applied, decreased about 3% from 2002 to 2007 and 11% from 1997 to 2007. However, the total pounds of pesticide use decreased only by approximately 8% — from 1.2 to 1.1 billion pounds — during the years from 2000 to 2007. While any decrease in the use of toxic chemicals is a hopeful sign, this marginal reduction does not go far enough. The fact that chemicals which are known to adversely affect human health and […]
Posted in Uncategorized | 1 Comment »
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 »
Tuesday, January 25th, 2011
(Beyond Pesticides, January 25, 2011) Research by the U.S. Department of Agriculture’s (USDA) Bee Research Laboratory and Penn State University shows that the neonicotinoid insecticide imidacloprid contribute —at extremely low levels— to bee deaths and possibly colony collapse disorder (CCD), the widespread disappearance of honey bees that has killed off more than a third of commercial honey bees in the U.S. While the study has not been published yet, the UK’s The Independent newspaper reports that honeybees exposed to imidacloprid are more susceptible to the fungal pathogen Nosema. This is the first study to show that neonicotinoids impact the survival of bees at levels below the level of detection, meaning that field studies would not have considered the role of the pesticide, because they would not have detected it. USDA researcher Jeffrey Pettis, PhD and Penn State University researcher Dennis Van Engelsdorp, PhD explained their research in the 2010 documentary, The Strange Disappearance of the Honeybees (transcript courtesy of Grist.org): [Pettis] I’ve done a recent study actually in collaboration with Dennis van Engelsdorp and some other researchers, where we exposed whole colonies to very low levels of neo-nicotinoids in this case, and then ”˜challenged’ bees from those colonies, with Nosema […]
Posted in Chemicals, Clothianidin, Imidacloprid, Pollinators | 2 Comments »
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 »