(Beyond Pesticides, June 21st, 2012) A new study details the toxic effects of long-term exposure to commonly used agricultural pesticides. Results indicate an increased likelihood of moderate to severe blood toxicity and a reduced total number of bone marrow cells, which can lead to degenerative diseases like aplastic anemia. The study, entitled “Pesticide Induced Alterations in Marrow Physiology and Depletion of Stem and Stromal Progenitor Population: An Experimental Model to Study the Toxic Effects of Pesticide” is published in the online version of the Journal of Environmental Toxicology . The experiment, led by researchers at the Calcutta School of Tropical Medicine’s Department of Biochemistry and Medical Biotechnology, exposed a group of mice to a mixture of organochlorine, organophosphate and pyrethriod pesticides, including a preponderance of the chemicals cypermethrin, and chloropyrofos. The exposed mice showed an overall reduction in the ability of their bodies to produce bone marrow cells. Bone marrow, the soft flexible tissue found in the interior of bones, is a storehouse for stem cells. While the exact mechanism is unknown to researchers, the study reveals that the microenvironment in which stem cells develop is somehow deranged by pesticides. This derangement prevents the maturation of stem cells into every […]

(Beyond Pesticides, June 20, 2012) To control a growing insect resistance problem to the widely used biological pesticide Bacillus thuringiensis (Bt) toxin, now genetically engineered into corn, two experts have concluded that the U.S. Environmental Protection Agency (EPA) should double the so-called “refuges” of acreage planted with non-genetically engineered (GE) corn. If the resistance problem continues -exacerbated by these GE pesticide incorporated plants (PIPs), it will eliminate a bio-rational tool often used by organic farmers. The article, “Delaying Corn Rootworm Resistance to Bt Corn,” was published in the June 2012 issue of Journal of Economic Entomology. Currently, EPA requires 20 percent of the total acreage to be set aside for refuges for corn producing one Bt protein (CryBb1), and a 5 percent refuge portion for corn that produces two different Bt proteins at the same time. However, earlier this year, inspections found that more than 40% of American farmers who planted certain varieties of the GE corn in 2011 failed inspections to verify compliance with these management practices to prevent insect resistance. “Most of the corn seed currently produced in the U.S. is transgenic and includes genes for insect control,” said co-author Fred Gould, PhD. “Enlarging refuges will require more […]

(Beyond Pesticides, June 15, 2012) Researchers at the Duke University School of Medicine have developed a laboratory screening system for detecting neurotoxic chemicals and successfully tested it on more than 1,400 potential toxicants. The study confirms the high toxic activity of the chemical piperonyl butoxide (PBO), a chemical “synergist” used to increase the potency of more than 700 insecticides, including synthetic pyrethroids widely used in mosquito and community spray programs and for home use. The study, entitled “The Insecticide Synergist Piperonyl Butoxide Inhibits Hedgehog Signaling: Assessing Chemical Risks,” was published in the May 2012 edition of the journal Toxicological Sciences. The testing shows that PBO disrupts a biological signaling system that is “critical in neurological development,” the researchers reported in the abstract of their paper. The study finds that the disruption of this critical pathway “may be the molecular basis for profound developmental defects in children exposed in utero to PBO.” Piperonyl butoxide is not itself classified as a pesticide, but companies combine it with insecticides to increase their potency. PBO came into widespread use when the U.S. Environmental Protection Agency (EPA) phased out chlorpyrifos and other organophosphate pesticides nearly a decade ago after determining that they posed a risk […]

(Beyond Pesticides, June 12, 2012) Congressman Edward J. Markey (D-Mass.), senior member of the Energy and Commerce Committee, has asked the U.S. the Food and Drug Administration (FDA) to halt the use of the insecticide lindane in pharmaceutical treatments for head lice in children. Despite research on its toxicity and ineffectiveness, FDA continues to allow lindane to be used in prescription shampoos and lotions to treat cases of lice and scabies, overwhelmingly on children. Rep. Markey’s letter to the FDA can be found here. Lindane has been found to cause skin irritation, seizures, and, in rare instances, even death. Infants and children are especially sensitive to the health risks posed by pesticides such as lindane because of their developing bodies. In 2005, the U.S. Department of Health and Human Services determined that lindane could cause cancer in humans, and the EPA cancelled all pesticide registrations for agricultural uses of lindane in 2006 because of its toxicity to humans and persistence in the environment. It was banned in California in 2000 because of high levels of water contamination. Following the ban, water contamination drastically declined, and an increase in head lice cases was not reported. A 2002 study that compared efficacy […]

(Beyond Pesticides, June 8, 2012) The U.S. Department of Agriculture’s (USDA) National Organic Program (NOP) has published a final rule in the Federal Register officially codifying into federal regulations changes to organic standards that were recommended by the National Organic Standards Board (NOSB) over the past year and a half. The changes to the National List of Allowed and Prohibited Substances (National List) include the renewal of a number of substances already on the list, the removal of two substances, and specific changes to several others. Among the more notable changes to the organic standards made by the publication of this final rule is a hard fought victory for organic hops growers in the form of a new requirement that, beginning the first day of 2013, all hops used in organic beer production must be produced organically. Due to the “commercial availability” clause in the organic law, beer bearing the organic seal had previously been allowed to contain conventionally produced hops due to a perception that hops produced organically were not available in the necessary quantities. However, the American Organic Hop Grower Association petitioned the NOSB to remove this allowance on the basis that this would create increased demand for […]

(Beyond Pesticides, June 7th, 2012) A new study confirms several other recent study findings on the inability of commonly used pyrethroid based pesticide products to control bed bug infestations. The results reinforce the voices of concerned citizens and environmental groups calling for a wider adoption of proven, non-toxic methods to manage bed bugs and other household pest problems. The study, entitled “Ineffectiveness of Over-the-Counter Total-Release Foggers Against the Bed Bug,“ was published in the June issue of the Journal of Economic Entomology. Researchers from Ohio State University focused on the efficacy of three over-the-counter ”˜foggers,’ or ”˜bug bombs,’ including Hotshot Bedbug and Flea Fogger, Spectracide Bug Stop Indoor Fogger, and Eliminator Indoor Fogger. Results from the study reveal that bed bugs are not affected by direct exposure to the pyrethriods present in these products. Even long-term laboratory populations of bed bugs, known to be susceptible to pyrethroids, were unaffected by the pesticide when given a thin cloth as cover. This means that even if the current strain of bed bugs in the U.S. were not resistant to pyrethriods, the chemical still would not be an effective method of control because of bed bugs’ propensity to hide in small cracks and […]

(Beyond Pesticides, June 5, 2012) A new study finds that children exposed to high levels of naphthalene, a common air pollutant and the active ingredient in mothballs, are at increased risk for chromosomal aberrations (CA’s) that have been associated with increased cancer risk in adults. These include chromosomal translocations, a potentially more harmful and long-lasting subtype of CAs, which are of special concern as they result in a portion of one chromosome being juxtaposed to a portion of another chromosome, potentially scrambling the genetic script. Researchers from the Columbia Center for Children’s Environmental Health (CCCEH) at the Mailman School of Public Health, Columbia University Medical Center, and the Centers for Disease Control and Prevention (CDC) published the findings in Cancer, Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research. “Translocations can persist for years after exposure. Some accumulated damage will be repaired, but not everyone’s repair capacity is the same. Previous studies have suggested that chromosomal breaks can double an adult’s lifetime risk for cancer, though implications for children are unknown,” says first author Manuela A. Orjuela, MD, ScM, assistant professor of clinical environmental health sciences and pediatrics (oncology) at Columbia University Medical Center and a […]

(Beyond Pesticides, June 4, 2012) France’s Agriculture Minister Stephane Le Foll announced plans on Friday to cancel Swiss manufacturer Syngenta’s registration to treat canola seed with the neonicotinoid insecticide thiamethoxam, a chemical cousin of the bee-killing pesticide clothianidin, in a move to protect honey bees from Colony Collapse Disorder (CCD). When honey bees are exposed to thiamethoxam, it breaks down in their bodies to, clothianidin, which Beyond Pesticides is petitioning the Environmental Protection Agency (EPA) to ban due to a preponderance of adverse effects data and inadequate registration safety testing. Both pesticides have been shown in numerous scientific studies to play a key role in CCD. As France acts to protect its pollinators from pesticides, the U.S. continues to allow the uses of theses highly toxic chemicals to continue. Tell Congress and EPA that the U.S. should join France in taking a precautionary approach to our pollinator crisis. The chemical manufacturer Syngenta has two weeks to report its own evidence before the ban officially goes into effect. If enacted, France’s Agriculture Ministry stated that the ban will take effect before the start of canola sowing season in late summer. Minister Le Foll reinforced the fact that farmers do not need […]

(Beyond Pesticides, June 1, 2012) Beyond Pesticides is pleased to announce the release of videos from Healthy Communities, the 30th National Pesticide Forum. The forum was held March 30-31, 2012 at Yale University School of Froestry and Environmental Studies in New Haven, CT and included leaders in the fields of pesticide reform, public health, organic agriculture, and alternative pest control as well as many community leaders, local activists, and students. The videos span the range of topics that were discussed at the Forum and include keynote speeches, panel discussions, and workshops. You can access the playlist, which includes all of the available videos of the 2012 forum, on Beyond Pesticides’ YouTube page. The videos include such notable presentations as: “Inventing the Future of Food“ by Gary Hirshberg — Mr. Hirshberg discusses organics, his experience with Stonyfield Farm and future of food. Mr. Hirshberg is chairman and co-founder of Stonyfield Farm, the world’s leading organic yogurt producer, and the author of Stirring It Up: How to Make Money and Save the World. Previously, he directed the Rural Education Center, the small organic farming school from which Stonyfield was spawned. Before that, he had served as executive director of The New Alchemy […]

(Beyond Pesticides, May 31, 2012) The Centers for Disease Control and Prevention (CDC) and the Maryland Department of Health and Mental Hygiene have enrolled Maryland households in a study that involves spraying the controversial pesticide bifenthrinon their property to determine the efficacy of this approach in controlling Lyme disease. Now in the beginning of its second year, the study found no evidence in the first year that the spraying works to reduce the transmission of Lyme disease. Beyond Pesticides is concerned that study participants have not been provided complete information about bifenthrin’s potential health risks to people. According to the Baltimore Sun, the study is an effort to find new ways to combat the disease, which infected 1,600 people in Maryland in 2010. Half of the 185 families that have volunteered for the study will have water sprayed on their lawns to serve as a control group, while the other half will receive the bifenthrin treatment. The 185 families that have signed up so far this year get a $25 gift card, lowered from $40 given to the 440 participants last year. Last year, while the pesticide reduced the amount of ticks on treated lawns compared to the control group, […]

(Beyond Pesticides, May 30, 2012) A settlement between plaintiffs and the manufacturer of the endocrine disrupting herbicide atrazine, Syngenta, will pay $105 million to settle a nearly 8-year-old lawsuit and could help reimburse community water systems (CWS) in 45 states that have had to filter the toxic chemical from its drinking water, according to news reports. It will provide financial recoveries for costs that have been borne for decades by more than 1,887 CWSs that provide drinking water more than one in six Americans across at least 45 states. “The scope of this historic settlement is enormous and its protection of the health of millions of Americans across the country is a huge benefit to the public, the environment, and the taxpayers,” the lead plaintiffs’ lawyer Stephen M. Tillery told the media. The individual amounts that eligible CWSs will recover will be calculated based on the levels of atrazine and frequency of atrazine contamination measured in the water of impacted CWSs and the population served by each CWS. The 300 CWSs with the highest contamination levels will recover 100 percent of their costs. Atrazine Settlement Details ”¢ Under the reported settlement, Syngenta will pay $105 million to pay the claims […]

(Beyond Pesticides, May 25, 2012) Biologists at the University of California at San Diego (UCSD) have discovered that a small dose of the commonly used neonicotinoid crop pesticide imidacloprid turns honey bees into “picky eaters” and affects their ability to recruit their nestmates to otherwise good sources of food. The results of the experiments, detailed in this week’s issue of the Journal of Experimental Biology (abstract), shed light on one of the main culprits suspected to be behind the recent declines in honey bee colonies and detail the particular ways that the substance impedes the functions of the colony. Since 2006, beekeepers in North America and Europe have lost about one-third of their managed bee colonies each year due to “colony collapse disorder.” While the exact cause is unknown, researchers believe pesticides have contributed to this decline. One group of crop pesticides, called “neonicotinoids,” has received particular attention from beekeepers and researchers. Neonicotinoids, including clothianidin and thiamethoxam, in addition to imidacloprid, are highly toxic to a range of insects, including honey bees and other pollinators. They are taken up by a plant’s vascular system and expressed through pollen, nectar and gutation droplets from which bees forage and drink. They are […]

(Beyond Pesticides, May 23, 2012) University of South Florida (USF) researchers find that the commonly used fungicide chlorothalonil is lethal to a variety of freshwater organisms, including amphibians, snails, zooplankton, algae and aquatic plants below estimated environmental concentrations deemed safe by the U.S. Environmental Protection Agency (EPA). The research builds on a study published last year by the team which found that the fungicide is lethal to frogs at low doses, wiping out 87% of the population at the expected environmental concentration level. The study, entitled “Fungicide-induced declines of freshwater biodiversity modify ecosystem functions and services” was published in the journal Ecology Letters by USF biologists Taegan McMahon, PhD and Jason Rohr, PhD. The study was conducted over the course of four weeks using several 300-gallon tanks that were filled with water to mimic pond conditions. Using EPA calculations of how much chemical the farmer would use and how much would be expected to runoff into nearby bodies of water, they dosed the tanks with chlorothalonil. Though some species were able to recover from the chemical assault, researchers found that the ecosystem was fundamentally changed. “In addition, to reducing biodiversity and altering ecosystem functions, chlorothalonil reduced the decomposition of waste, […]

(Beyond Pesticides, May 22, 2012) The Spanish-based Inesfly company announced recently its plans to release commercially pesticide encapsulated paint, Inesfly 5A IGR, containing two neurotoxic organophosphates (OPs), chlorpyrifos and diazinon, and the insect growth regulator (IGR), pyriproxyfen, which it hopes will combat malaria in sub-Saharan Africa. The company’s owner Pilar Mateo, PhD, calls her product “a vaccine for houses and buildings” and explains that because the insecticides are released slowly from the paint, it remains effective for two to four years. This formulation of Dr. Mateo’s paint could not be registered for use in the U.S. because both indoor residential uses of chlorpyrifos and diazinon have been banned because of risks posed to children’s health, although the company has another formulation that substitutes pyrethroids for the organophosphates. Though probably well-intentioned —Dr. Mateo has already invested $6 million of her family’s money and $12 million in grants from nonprofits, on research, creating educational programs about hygiene, and donating paint to more than 8,000 homes in Latin America and Africa””the product puts the people it is supposed to protect from disease at risk for other health problems. Organophosphate insecticides have been linked to a host of neurodevelopmental problems, especially in children. Because […]

(Beyond Pesticides, May 21, 2012) American farmers are growing increasingly more frustrated with the lack of commercially available seeds that have not been pretreated with pesticides. Farmers across the Midwest have called on federal officials this week to provide greater access to seeds without pesticide treatments. The request comes as scientists and beekeepers highlight the nearly pervasive use of neonicotinoids as seed treatments on corn as a critical factor in recent bee die-offs, including colony collapse disorder (CCD). Beekeepers from Minnesota to Ohio to Canada report large losses after their hives forage near treated cornfields. Scientists from Purdue University and a multi-year series of studies from Italy point to toxic dust, or neonicotinoid-contaminated powder from recently planted corn fields as key pesticide exposure pathways for bees. The request comes on the heels of a report aired by NBC Nightly News this week entitled “Bee Deaths Linked to Pesticides”, as well as recent reports of large bee kills in Ohio. “Farmers want to be good stewards and neighbors by purchasing seeds and growing corn that supports healthy honey bees and successful beekeepers,” said Doug Voss, a Minnesota corn farmer who also keeps beehives. We have a genuine concern with the majority […]

(Beyond Pesticides, May 17, 2012) Rather than investing in safe, long-term solutions to prevent malaria mortality, the World Health Organization (WHO) has issued a strategic plan that calls for multiple toxic pesticides to combat mosquito resistance to insecticides that is showing up in sub-Saharan Africa. Insecticide resistance, according to the WHO report, is already rampant in 64 malaria-ridden countries and may result in as many as 26 million more cases of malaria a year, which could end up costing between $30 and $60 million annually for tests and medication. Mosquitoes in sub-Saharan African countries are becoming resistant to pyrethroid insecticides, which are used extensively for household spraying and treating bed nets, as well as to the organochloride compound DDT -which is still used in many parts of the world to control mosquitoes. In Somalia, Sudan and Turkey, resistance has spread to carbamates and organophosphates in addition to pyrethroids and organochloride pesticides. Rather than reducing the reliance on these products, WHO is recommending rotating classes of pesticides used to spray inside homes and developing a new non-pyrethroid insecticide to treat bed nets. Implementation for these suggestions are estimated to cost around $200 million, which is in addition to the $6 billion […]

(Beyond Pesticides, May 15, 2012) Dow AgroSciences and Monsanto have filed paperwork for Canadian approval of corn and soybeans genetically engineered (GE) to withstand heavy applications of potent herbicides, reports the Ottawa Citizen. The chemical companies are seeking Health Canada and Canadian Food Inspection Agency assessments for the introduction of four varieties of GE corn and soybeans engineered to tolerate the highly toxic herbicides 2,4-D and dicamba. In the U.S., the federal Department of Agriculture (USDA) is in the process of reviewing Dow’s application for its 2,4-D-tolerant corn, as well. Beyond Pesticides and others recently submitted comments to USDA challenging this approval. Dow’s GE corn is modified to be tolerant to 2,4-D, which is contaminated with dioxin and linked to cancer, birth defects, and more. The company is introducing the new GE corn variety because weeds are becoming resistant to Roundup, the previous chemical of choice for herbicide-tolerant plants. However, solving herbicide resistance with a new, more toxic chemical is like using gasoline to put out a fire. It will cause even more damage to health and the environment, and in a few years, the pesticide industry will be marketing their next “solution” to the growing resistance problem. Dow states […]

(Beyond Pesticides, May 14, 2012) The U.S. Environmental Protection Agency (EPA) is accepting public comment on several complex regulatory issues related to the agency’s commitment to phase out the toxic fumigant sulfuryl fluoride. At one time EPA had supported sulfuryl fluoride as a replacement for a second fumigant, methyl bromide, which the United States is obligated under international treaty to eliminate due to its contribution to ozone depletion. However, EPA reversed that support once further research and a refined risk assessment established that aggregate exposure to sulfuryl fluoride does not adequately protect the health of certain population subgroups. Although EPA decided unequivocally in 2011 to phase out all food-related uses for sulfuryl fluoride, the current public comment opportunity revisits key elements of that decision and could open the door for an unwarranted and unnecessary extension of this toxic fumigant’s allowance. Initially registered in 1959 to kill termites and other wood-boring pests, sulfuryl fluoride gained attention as a potential alternative to methyl bromide as a broad spectrum insect fumigant in post-harvest commodity storage and food processing facilities. The need for such alternatives became more pressing as the U.S., a signatory of the Montreal Protocol, gradually reduced the amount of methyl bromide […]

(Beyond Pesticides, May 9, 2012) In what is being presented as “a clear risk to British farming,” protesters in the United Kingdom have organized a campaign to protest field sites being used to test a new strain of genetically modified (GM) wheat. The industry developing the GM wheat is asking the campaigners not to ruin their experimental plots, but the group, ”˜Take the Flour Back,’ has vowed to “decontaminate” the site unless the research is halted. The “Take the Flour Back” campaign is protesting the outdoor field trials of a new strain of GM wheat which has the potential to contaminate surrounding fields and spread GM material to others areas off-site. Campaigners say controlled indoor trials should be done instead before the crop is planted outdoors. The trial at Rothamsted Research in Harpenden, Herts in South East England is evaluating the efficacy of wheat modified to deter aphids, an insect pest. Rothamsted Research insists this minimizes crop losses due to aphid attack and the fungal infections and viruses that can follow in their wake, and reduces the need for chemical spraying against aphids. Rothamsted agricultural research establishment is set to conduct open air trials of wheat to be planted in […]

(Beyond Pesticides, May 7, 2012) The U.S. Department of Agriculture (USDA) has quarantined a second California farm as part of its ongoing investigation into a confirmed incidence of Bovine Spongiform Encephalopathy (BSE), first reported on April 24. USDA quarantined the second farm because it is operated in close association with the dairy that housed the BSE-infected cow before its condition was detected. Additionally, USDA is investigating the ranch where the BSE-infected cow was raised 10 years ago. USDA also announced that of the two progeny known to have been born to the BSE-infected cow in the past two years, one was stillborn and the second, after being humanely euthanized, tested negative for BSE. The origin and transmission of BSE to hundreds of thousands of cattle has been widely attributed to using cattle rendered protein produced from the carcasses of scrapie-infected sheep or cattle with a previously unidentified form of transmissible spongiform encephalopathy as livestock feed. This widespread practice of feeding substances derived from animals to other animals (even of the same species) was sharply curtailed following the BSE epidemic in the U.S. and Europe, but never fully eliminated. For example, livestock feed regulations in the U.S. continue to allow the […]

(Beyond Pesticides, May 2, 1012) New research published online at the Proceedings of the National Academy of Sciences reports that babies exposed in the womb to a commonly used insecticide have brain abnormalities after birth. The insecticide, chlorpyrifos (used in agriculture, mosquito control, and golf course management) , is well documented as inducing neurodevelopmental abnormalities in infants exposed in their mother’s womb, including ADHD, cognitive deficits, and serious learning, behavioral or emotional disorders. Entitled, “Brain anomalies in children exposed prenatally to a common organophosphate pesticide,” the study investigated associations between chlorpyrifos exposure and brain morphology using magnetic resonance imaging in 40 New York City children. It found significant associations of prenatal exposure, at standard use levels, with structural changes in the developing human brain, including enlargement of superior temporal, posterior middle temporal, and enlarged superior frontal gyrus, gyrus rectus, cuneus, and precuneus along the mesial wall of the right hemisphere. These areas of the brain impacted are related to attention, language, reward systems, emotions and control may be affected by the chemical. Twenty high-exposure children (upper third of chlorpyrifos concentrations in umbilical cord blood) were compared with 20 low-exposure children. The children, ages 6-11 years, considered to have a high […]

(Beyond Pesticides, April 25, 2012) Researchers at Portland State University have found that the cultivation of corn genetically engineered (GE) to express the insecticidal soil bacterium Bacillus thuringiensis (Bt) has negative impacts on beneficial soil life. The research team, led by PhD student Tanya Cheeke, was interested in determining whether the cultivation of Bt corn has a negative effect on arbuscular mycorrhizal fungal colonization of Bt corn or of crops subsequently planted in the same soil. Their findings, published in the April 2012 issue of the American Journal of Botany, show a decreased presence of the beneficial fungi in the roots of Bt corn when compared to non-Bt corn. Bt corn is genetically engineered to express insecticidal toxins derived from Bt in an effort to protect it against common agricultural pests such as the corn root worm and European corn borer. Recent findings have shown, however, that insects are growing increasingly resistant to the toxin, due in part to a breakdown in resistance management implementation. Additionally, researchers in Europe recently found evidence that Bt is toxic to human cells in large doses. Arbuscular mycorrhizal fungi (AMF) are ubiquitous microscopic soil fungi that form symbiotic relationships with the roots of most […]

(Beyond Pesticides, April 24, 2012) Dow Chemical has asked USDA for approval of genetically engineered (GE) corn, modified to be tolerant to the highly toxic 2,4-D herbicide, which is contaminated with dioxin and linked to cancer, birth defects and more. We know from experience that herbicide-tolerant crops are a bad idea. They increase toxic pesticide use, contaminate organic and non-GE farms, and contribute to herbicide-resistance. In fact, Dow introduced a new GE corn variety because weeds are becoming resistant to Roundup, the previous chemical of choice for herbicide-tolerant plants. However, solving herbicide resistance with a new, more toxic chemical is like using gasoline to put out a fire. It will cause even more damage to health and the environment, and in a few years, the pesticide industry will be marketing their next “solution” to the growing resistance problem. Read Beyond Pesticides full comments to USDA for Dow’s petition to approve 2-4,D-resistant GE corn. Tell USDA to stop this toxic experiment and deny Dow’s petition for 2,4-D tolerant corn. Sign your organization or business onto Beyond Pesticides’ comments or submit comments directly to the USDA docket. The deadline to sign on is Friday, April 27 at noon. Background: In a radio […]