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Chief Minister of Sikkim State in India Urges World to Adopt Organic Agriculture

Tuesday, October 23rd, 2018

(Beyond Pesticides, October 23, 2018)  The Chief Minister of the Sikkim state in northeast India, Pawan Chamling, addressed a news conference in the Italian Parliament on October 15 to issue a call for a complete, global transition to organic agriculture by 2050. Citing the increasing dangers of climate disruption and its impacts, Mr. Chamling said that such conversion to pesticide- and petrochemical-free practices would reduce carbon emissions by 50%. The call for banning pesticides in communities and countries nationwide is gaining increasing traction, as the shift to organic land management is increasing exponentially. The town of Mals, Italy (93 square miles in area, encompassing ten villages and hamlets, as well as farmland, home to 5,092 people) passed a ban on a ballot initiative with 75% in favor and 69% of the electorate voting. In 2013, the country of Bhutan adopted completely organic practices  throughout its nation. Although not affecting agricultural pesticide use, towns across the U.S. are adopting measures that stop pesticide use community-wide. Ordinances in the cities of Ogunquit, South Portland, and Portland, Maine and the City of Takoma Park, Maryland are examples of city-wide pesticide bans. A petition in Switzerland calls for the banning of pesticides country-wide. States in northeast India — […]

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Take Action: Tell California Department of Pesticide Regulation to Ban Chlorpyrifos

Monday, October 22nd, 2018

(Beyond Pesticides, October 22, 2018) The California Department of Pesticide Regulation (DPR) is accepting comments on its proposal to classify chlorpyrifos as a toxic air pollutant. The classification would require DPR to develop control measures that adequately protect public health. What happens in California affects all of us because products of California agriculture are available all over the country –and the world. In addition, policies set by the state of California are often examples for other states and the federal government. Tell California Department of Pesticide Regulation to ban chlorpyrifos. California’s Office of Environmental Health Hazard Assessment (OEHHA) states: Under the Toxic Air Contaminant Identification and Control Act (AB 1807, Chapter 1047, Statutes of 1983) and its implementing regulations (Title 3, California Code of Regulations, Section 6864), one of the criteria for identifying a pesticide as a TAC is if its concentration in the air exceeds one-tenth of the level that has been determined to be adequately protective of human health. The draft TAC document shows that bystanders can be exposed to modeled air concentrations of chlorpyrifos that exceed one-tenth the protective level, and thus meet the criteria for TAC identification. OEHHA’s findings below serve to reinforce this overall conclusion, and […]

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EPA Considers 300,000-Acre Expansion of Bee-Toxic Pesticide

Friday, October 19th, 2018

(Beyond Pesticides, October 19, 2018) Pollinator advocates and the Center for Biological Diversity (CBD) are imploring the U.S. Environmental Protection Agency (EPA) to deny Bayer CropScience’s application for use of “Sivanto,”a pesticide product with the active ingredient flupyradifurone, a chemical the company claims is safer for bees, but poses the same risks at the notorious bee-toxic neonicotinoid insecticides. If approved, Sivanto would be sprayed in tobacco-growing states along 300,000 acres in the southeast U.S., areas home to more than three dozen species protected under the Endangered Species Act (ESA). Bayer’s proposal for expanded uses comes after EPA’s own assessment indicated risks to endangered species, and despite the fact that the agency has not undergone an ESA mandated consultation with federal wildlife agencies. For the countless flying insects, birds, and bats already under significant threat from neonicotinoids, adding another systemic insecticide to the mix will only make the situation worse. Bayer AG is characterizing flupyradifurone as being harmless to honeybees. However, flupyradifurone, being a systemic pesticide, can negatively impact many non-target species.  In fact, flupyradifurone impacts honey bee brains in a similar way to neonicotinoids, as it impairs learning, memory and the honey bees’ affinity for nectar rewards. Advocates worry that growing […]

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Study of Rural New York State Homes Finds Pesticides in Every Sample Tested

Thursday, October 18th, 2018

(Beyond Pesticides, October 18, 2018) Pesticide residue doesn’t announce itself –it isn’t colored, it doesn’t glow or reflect light, and after an initial application doesn’t put out a discernible odor – but it is likely ubiquitous in rural U.S. homes, according to a study published by Cornell University researchers late last month. The study is a warning specifically to households with young children, who are at increased risk of health effects from even minute levels of pesticide exposure. “Numerous health problems occur from exposure to pesticides, such as cancer, birth defects, leukemia and ocular [vision-related] toxicity, among a number of other health issues,” said Joseph Laquatra, PhD, coauthor of the research. “Households with crawling toddlers should be concerned, as toddlers will accumulate pesticide residues on their hands and then ingest them due to hand-to-mouth behaviors.” Researchers focused in on 132 households in rural counties of New York State that agreed to test for pesticide residue inside their home. Wipe samples were collected from both carpeted and non-carpeted areas, and tested for pesticides used commonly as part of agricultural production in the region. The pesticides analyzed included 15 compounds ranging from organophosphates like chlorpyrifos and malathion, to synthetic pyrethroids like resmethrin, […]

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Management of Pesticide Waste a Global Problem

Wednesday, October 17th, 2018

(Beyond Pesticides, October 17, 2018) The unsustainable life cycle management of pesticides during the past seven decades has created huge stockpiles of these (and other toxic) chemicals across much of the globe, including Eastern Europe, Africa, the Middle East, and Latin America. The journal Environmental Science and Pollution Research has published a special series of articles and reports from the International HCH & Pesticides Association (IHPA), titled “The legacy of pesticides and POPs stockpiles — a threat to health and the environment.” Stockpiles have accumulated because some products have been banned for health or environmental reasons, leaving stocks (aka waste) that are often stored inadequately, and which deteriorate and migrate to contaminate the environment and put people at risk. Those affected are very often in poor, rural communities that may be unaware of the threat in their midst. Beyond Pesticides covered this “chemical time bomb” problem in 2004 and again nearly a decade ago. The special issue of Environmental Science and Pollution Research responds to multiple fronts on this problem of accumulation and storage of toxic compounds, identifying the two largest issues as: (1) the stockpile of some 4–7 million tons of hexachlorocyclohexane (HCH) waste from lindane production; and the 240,000 […]

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Take Action: Tell Kroger to Stop Selling Food Grown with Toxic Pesticides

Monday, October 15th, 2018

(Beyond Pesticides, October 15, 2018) As a leader in organic sales, it is critical that Kroger take additional expedited steps to increase the market share of organic food and eliminate the use of toxic pesticides harmful to public health and the environment. Kroger is among the major food retailers that sells food that has been grown with toxic pesticides, such as the extremely hazardous insecticide chlorpyrifos which causes neurological and brain damage in children. Kroger should immediately end its misleading and fraudulent advertising and labeling of food products as “natural” and replace these with certified organic products. In fact, by misleading consumers with “natural” labeling and advertising of food, Kroger supports chemical-intensive agriculture that poisons children, causes cancer, and threatens biodiversity through the use of toxic chemicals like chlorpyrifos, glyphosate, and neonicotinoids. This is unnecessary and unacceptable. Tell Kroger to stop selling food grown with toxic pesticides. Chlorpyrifos  is a highly neurotoxic organophosphate pesticide that is linked to neurologic developmental disorders in children. Exposure to even low levels of organophosphates like chlorpyrifos during pregnancy impairs learning, changes brain function, and alters thyroid levels of offspring into adulthood. EPA’s own assessment finds that children exposed to high levels of chlorpyrifos have developmental delays, attention problems, attention-deficit/hyperactivity disorder […]

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Vermont Watershed Protected from Hazardous Pesticide Use

Friday, October 12th, 2018

(Beyond Pesticides, October 12, 2018) For the first time in its history, the Vermont Department of Environmental Conservation (DEC) denied a permit to apply toxic pesticides to a local waterbody, according to reports from the regional nonprofit organization Toxics Action Center. The DEC decision responded to an application from the Town of Williston, VT to use the herbicide SePRO Sonar ASÂŽ on Lake Iroquois, a 237 acre spring-fed body of water used for public recreation, in order to control Eurasian watermilfoil. DEC ruled that use of the herbicide posed risks to the holistic integrity of the lake waters, the Champlain watershed, and surrounding ecology. Sonar contains the active ingredient fluridone, which studies have linked to endocrine disruption, kidney/liver damage and toxicity to fish/aquatic organisms. It has also been identified as a potent groundwater contaminant. With this background, fluridone use has been the subject of public opposition. The permit application submitted by Williston city officials identified $350,000 in costs to apply the pesticide over the next five years, with 3-4 applications scheduled each summer. Milfoil typically takes over shallow coastal waters, out competes native aquatic plants for space and sunlight, reduces oxygen levels and harms fish habitat. Milfoil, like other invasive plants, […]

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Study Finds Organic Farming Methods Help Maintain Healthy Pollinator Populations

Thursday, October 11th, 2018

(Beyond Pesticides, October 11, 2018) Healthy, stable populations of bees and butterflies are best preserved in farm fields that are certified organic, according to an extensive, three-year study conducted by Swedish researchers at Lund University. The research, published last month in the journal Biological Conservation, highlights the benefits that organic farms provide pollinators by improving floral resources and forgoing the use of toxic pesticides. The data continues to support the need for a broad-scale conversion to more sustainable organic practices in the U.S. and internationally. “This is the first large-scale study over the course of several years to show that organic farming has a consistent, stabilizing effect on pollinator diversity,” says Romain CarriĂŠ, PhD, a postdoctoral researcher at CEC. Researchers recorded observations of bumblebees, butterflies and flowering plant species at 10 organic and 9 conventional farms throughout Sweden for three years. Farms were compared across type, including cereal fields, temporary grasslands, and semi-natural grasslands. The study aimed to observe the spatio-temporal aspects (continuity of the number of different species in space and time) of pollinators and flowering species in these fields. Results of the study found that, overall, organic farms had and sustained a higher rate of floral, bee, and butterfly […]

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EPA Asks Appeals Court to Rehear Chlorpyrifos Case

Tuesday, October 2nd, 2018

(Beyond Pesticides, October 2, 2018) The U.S. Environmental Protection Agency (EPA) is asking an appeals court to rehear a case that previously ruled EPA must immediately ban the brain-harming pesticide chlorpyrifos. The agency is requesting the U.S. Court of Appeals for the Ninth Circuit in San Francisco convene an “en banc hearing,” which is a session held in front of the all judges in the court, rather than a panel of three judges.  An “en banc” request is generally only accepted when an issue conflicts with a previous court decision, or is of significant importance for the general public. The move by EPA, now under the purview of Acting Administrator Andrew Wheeler, is the latest attempt by the agency to keep the highly toxic organophosphate insecticide on the market. It marks a continuation of the policy approach taken by former Administrator Scott Pruitt, who famously met with Dow Chemical’s CEO Andrew Leveris weeks before EPA reversed course on chlorpyrifos. Under the Obama administration, the agency announced its intent to cancel agricultural uses of chlorpyrifos due to strong evidence of harm to the brain and proper development of children. This move itself was the result of a petition and hard fought […]

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Take Action: Let Towns Keep the Right to Restrict Pesticides in Their Communities

Monday, October 1st, 2018

(Beyond Pesticides, October 1, 2018) Last year, pesticide manufacturers tried to undo local pesticide ordinances in a large state-by-state lobbying effort. That failed. Now they are trying to get Congress to undo these local rules in one fell swoop through an amendment in the Farm Bill. In 1991, the U.S. Supreme Court affirmed the right of local governments to restrict pesticides. The chemical industry’s attempt to take away the power of local governments to regulate the use of pesticides was wrong then and it is wrong now –more so, given the current weakening of federal pesticide programs. Send a letter to the editor of your local newspaper! The fight to defend the authority of local governments to protect people and the environment has been ongoing for decades. Against a backdrop of decades of pro-pesticide lobbying to limit local authority to restrict pesticide use in our communities and despite industry’s success, there has been nationwide action at the local level. In most states, local authority, under state law, is limited to restrictions on public property, and seven states have affirmed the right of localities to restrict pesticides on all land within its jurisdiction. Because of effective efforts across the state of Maine, […]

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French President Calls for Glyphosate/Roundup Ban, MPs Balk

Friday, September 28th, 2018

(Beyond Pesticides, September 28, 2018) Despite French President, Emmanuel Macron’s pledge to see glyphosate banned in his country, French ministers of parliament (MPs) have once again refused to enter the banning of glyphosate into legislation. Glyphosate’s use in Europe has come under scrutiny and heated debate. But despite evidence of harms, and interference by Monsanto, the European Union (EU) extended its license last year. However, France has pledged to ban the chemical within a few years. French MPs –who were voting at second reading on a comprehensive reform measure aimed at reforming the trade relations in the agricultural sector and promoting healthier food – have once again refused to approve the banning of glyphosate. A promise by Emmanuel Macron, the banning of glyphosate within the next three years was not initially included in the government’s bill. Following the intensification of the debate about the herbicide’s renewal at European level, the question of including the president’s promise in the legislative text was posed in the parliamentary debate. In May, MPs followed recommendations of the government to consider a ban. But they were opposed to a ban within the framework of the French law, and rejected the amendments mentioning a ban of the […]

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Nonprofits Sue Pret A Manger for Deceptive Marketing of Foods as ‘Natural’

Wednesday, September 26th, 2018

(Beyond Pesticides, September 26, 2018) Beyond Pesticides, GMO Free USA, and Organic Consumers Association filed a lawsuit against Pret A Manger restaurant chain for the deceptive marketing and sale of certain bread and other baked goods as “natural food,” after the products tested positive for glyphosate, a component of Roundup weedkiller. The lawsuit charges that Pret exploits consumers’ preferences and willingness to pay more for products marketed as ‘natural.’ “Consumers expect Pret’s food to be free of synthetic pesticides, including glyphosate. Glyphosate, patented as a chelator and an antibiotic, is linked to adverse health effects including cancer, infertility and non-alcoholic fatty liver and kidney diseases. Glyphosate shouldn’t be present in the food system at all, but a company that willfully misrepresents its products needs to be held accountable,” said Diana Reeves, executive director of GMO Free USA. Jay Feldman, executive director of Beyond Pesticides said: “Consumers want truthful information on product ingredients, with labeling and advertising that is transparent about production practices and residues of toxic materials. Given the widespread use of pesticide-intensive practices, this lawsuit establishes the responsibility of purveyors of food products to know the origins of their product ingredients before making a ‘natural’ claim.” Ronnie Cummins, Organic Consumers […]

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Bayer’s Monsanto Asks Judge to Reverse $289 Million Glyphosate Decision

Friday, September 21st, 2018

(Beyond Pesticides, September 21, 2018) Monsanto, now an integrated unit of Bayer AG, is asking Superior Court Judge Suzanne Bolanos to reverse the verdict, reduce the award, or grant a new trial for the company after a jury determined that a California groundskeeper contracted non-Hodgkin’s lymphoma from spraying glyphosate for years. Dewayne Johnson, who maintained the grounds of a California Bay-area school district, was awarded $289 million by a jury, which found that Monsanto acted with “malice or oppression.” Mr. Johnson’s case was the first of its kind to go to trial – fast tracked based on the severity of his illness – but over 8,000 similar lawsuits are pending in U.S. courts. Bayer’s Monsanto claims that the verdict does not reflect the scientific data. “While we are sympathetic to Mr. Johnson and his family, glyphosate is not responsible for his illness, and the verdict in this case should be reversed or set aside,” Bayer said in a September 18 statement. While Bayer contends that glyphosate does not result in individual applicators contracting cancer, this view is at odds with a 2015 designation from the International Agency for Research on Cancer (IARC), which determined the chemical is a probable carcinogen, […]

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Organochlorine Pesticide Exposures in the Womb Linked to Poorer Lung Function in Childhood

Thursday, September 20th, 2018

(Beyond Pesticides, September 20, 2018) Babies exposed to higher levels of organochlorine compounds in the womb go on to have worse lung function in childhood, according to new research presented at the European Respiratory Society International Congress. Previous studies have found a link between low lung function in early adulthood and respiratory, cardiovascular, and metabolic issues in later life. Beyond Pesticides has covered in its Daily News studies on a range of adverse effects, including autism in children, caused by organochlorine pesticide exposure, which bioaccumulates in the environment and the human body. Organochlorine compounds, which include the pesticide DDT, as well as electrical insulators and other industrial products, are now banned in most parts of the world. However, because they degrade very slowly, they are still present in the environment and in foods. Previous research has suggests links between exposure to these chemicals in the womb and parents reporting childhood respiratory diseases such as wheezing, asthma, and chest infections. The new study is the first to show a link with objective measures of lung strength and capacity in relation to low-level exposure to these chemicals. Organochlorine compounds can disrupt the hormone system and have been linked to a wide range of […]

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Military Base Has Legacy of Pesticide and Other Toxic Chemical Exposure and Harm

Wednesday, September 19th, 2018

(Beyond Pesticides, September 19, 2018) “‘Don’t get pregnant at George Air Force Base’” was the advice imparted from one female Air Force member to another in 1975 at that base, located 100+ miles north of San Diego and used as an active military site from 1941–1992. From the start of their service at George AFB, both parties to this conversation came to be familiar with the shared horror stories of repeated infections, vaginal bleeding, ovarian cysts, uterine tumors, birth defects, and miscarriages among female Air Force members at the site. Many women who served at George AFB in the 1970s, ‘80s, and ‘90s suffered, but did not know what was causing, such health issues, which were frequent enough that even base doctors would sometimes privately warn women off of getting pregnant while serving there. Among the many contaminants found at George AFB and other military sites are organochlorine-based pesticides (OCPs), such as DDT, dieldrin/aldrin, heptachlor, lindane, endrin, chlordane, mirex, toxaphene, hexachlorobenzene, chlordane, and others. (A comprehensive list of OCPs is available here.) Most of these compounds were used on military bases for decades for vegetation control, as building pesticides or fumigants, or for personal pesticide treatments for lice and scabies, and […]

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Pest Pressure to Rise Alongside Warming Climate, Underlining Need for Organic Production

Tuesday, September 18th, 2018

(Beyond Pesticides, September 18, 2018) While climate change campaigners have long warned of increased pest pressure as a result of a warming planet, new research published in Science has begun to envisage the true extent of this expanding crisis for agriculture and crop yields. An Earth warmed by 2 degrees Celsius will see significant increases in insect metabolism and population growth, increasing global food scarcity. The study underlines the need to move towards more sustainable agricultural models that can better handle pests and other stressors brought about by climate change. Scientists focused their models on the three staple crops that comprise over 40% of calories consumed worldwide – rice, corn, and wheat. Pest impacts were considered for a variety of scenarios, including a world warmed by 2 °C from Earth’s current global mean surface temperature. The Paris Climate Accords aims to limit warming to 1.5 °C, but with uncertainty around the U.S. pulling out of the voluntary agreement, the model produced by researchers represents a very possible scenario. The results paint a grim picture for global food security and nutrition, with pest-related losses expected to increase by 19% for rice, 31% for corn, and 46% for wheat. The trajectory boarders […]

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Over 60 Local Officials Call on Congress to Protect Local Authority to Restrict Toxic Pesticides in the Farm Bill

Thursday, September 13th, 2018

(Beyond Pesticides, September 13, 2018) House proposal would wipe out communities’ power to restrict pesticides. In an effort to protect the rights of communities nationwide, over 60 local officials from across the country sent a letter to Congress today opposing a farm bill provision that takes away local governments’ authority to restrict hazardous pesticides. The signatories are urging the farm bill conference committee to reject a “poison pill” rider that will preempt local governments, making the entire legislation unacceptable. Section 9101 of the House version of the farm bill will institute federal preemption of local pesticide policies, a move that will overturn a decades-old Supreme Court decision and prevent communities from adopting protective laws that meet the needs of their residents or unique local environment. The letter urges the conference committee to reach an agreement on a final 2018 farm bill that does not include this rider. It was signed by over 60 local officials in 39 communities from 15 different states, ranging from North Miami, FL to South Euclid, OH, West Hollywood, CA and Maui, HI. The County Council of Montgomery County, MD, which passed a landmark policy on toxic pesticides, also sent a letter to the farm bill conference committee. […]

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Amsterdam Leads Bee Recovery Efforts by Banning Bee-Toxic Pesticides, Improving Habitat

Wednesday, September 12th, 2018

(Beyond Pesticides, September 12, 2018) The city of Amsterdam, Netherlands is leading global bee recovery efforts by increasing its diversity of wild pollinator species, according to reporting and an analysis by NBC News. A new map published by the city identified 21 bee species not found in an earlier 1998 survey recorded by Amsterdam officials. The increase has been attributed to a range of pollinator-protective measures, including a ban on bee-toxic pesticides and the planting of native flowers, prioritized by the city government since the turn of the century. Local communities throughout the world can look to Amsterdam for policies and practices that will safeguard their own unique pollinator populations. The NBC News report notes several initiatives undertaken by the Amsterdam government. Many of these measures come out of a $38.5 million fund aimed at broadly improving environmental sustainability. “Insects are very important because they’re the start of the food chain,” said Geert Timmermans, an Amsterdam ecologist to NBC News. “When it goes well with the insects, it also goes well with the birds and mammals.” Insect and bee hotels are often installed in conjunction with the development of green roofs, which are encouraged for all new buildings. And parks […]

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Pesticide Residues in Cannabis Threaten Medical Use Market, According to Industry Insider

Friday, September 7th, 2018

(Beyond Pesticides, September 7, 2018) As the marijuana industry gears up for exploding markets created by the increasing number of states that permit medical and/or recreational cannabis use, the quality of marijuana products is emerging as an important issue for patients and consumers. Beyond Pesticides identified this concern back in the winter of 2014–2015, and pointed to the importance of organic production practices for the emerging industry. As of July 1, California’s mandated testing of cannabis became effective, and initial results are in. New Frontier Data CEO Giadha Aguirre de Carcer is pointing to those results as a threat to the medicinal cannabis market. She notes that 84% of 2016 product batches tested were found to harbor pesticide residue; and that in the recent California round of assays, 20% failed established standards due to contamination from pesticides, bacteria, or processing chemicals, and in some cases, inaccurate labeling. Ms. de Carcer, speaking to attendees at the Benzinga Cannabis Capital Conference in Toronto recently, said that cannabis producers must reduce the pesticide contamination in their products, at the very least because of consumer concerns that will translate to the marketplace. At that conference, she said, “Those are troublesome figures. . . . When we […]

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Invasive Crayfish Found to Increase Mosquito Populations

Thursday, September 6th, 2018

(Beyond Pesticides, September 6, 2018) Red swamp crayfish have long been associated with Louisiana and Gulf Coast bayous, but the species has found new homes throughout the world over the last 70 years, and evidence is showing that their introduction may alter ecosystems in ways that increase mosquito populations and human disease risk.  In late August, researchers at the University of California, Los Angeles and Pepperdine University published new evidence in the journal Conservation Biology associating non-native crayfish in California streams with declines in dragonflies that would otherwise eat local mosquito populations. As mosquito species and disease vectors shift in response to a changing climate, influxes of non-native species and their impacts on ecosystems add another layer of complexity to communities aiming to manage mosquitoes and other vector-borne diseases. Red swamp crayfish (Procambarus clarkii) are native to the U.S. Gulf Coast, but as a result of the aquarium pet trade, and their use as fish bait, have established opportunistic populations in wild ecosystems throughout the world – in every continent except Australia and Antarctica. In Southern California, researchers observed higher levels of mosquitoes in streams where the non-native crayfish have been found. To further understand the impact of this species […]

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Vietnam Demands Compensation from Monsanto for Devastating Harm Caused by Agent Orange During War

Tuesday, September 4th, 2018

(Beyond Pesticides, September 4, 2018) Close on the heels of the recent landmark California decision against Monsanto, maker of the glyphosate-based pesticide Roundup, Vietnam has demanded that the company pay damages to the many victims of its Agent Orange herbicide and defoliant, which Monsanto supplied to the U.S. military during the Vietnam War. (Monsanto was not the only U.S. manufacturer of the compound; there were nine in total.) U.S. forces, in a program dubbed Operation Ranch Hand, used more than 13 million gallons of the compound in Vietnam — nearly one-third of the 20 million gallons of all herbicides used during the war in Laos, Cambodia, and Vietnam. In Vietnam alone, 4.5 million acres were impacted by Agent Orange. Nguyen Phuong Tra, a spokesperson for Vietnam’s foreign ministry, said, “The [U.S.] verdict serves as a legal precedent which refutes previous claims that the herbicides made by Monsanto and other chemical corporations in the U.S. and provided for the U.S. army in the war are harmless. . . . Vietnam has suffered tremendous consequences from the war, especially with regard to the lasting and devastating effects of toxic chemicals, including Agent Orange.” Around the world, the U.S. case may be sparking […]

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Study Finds Bumblebees Increasingly Attracted to the Pesticides that Kill Them

Friday, August 31st, 2018

(Beyond Pesticides, August 31, 2018) Given the choice to forage on untreated or pesticide-contaminated food sources, bees will increasingly choose the pesticide, according to research published in Proceedings of the Royal Society B in late August. The data indicate that risks to pollinators grow, rather than wane, over time, making improved regulation over bee-toxic neonicotinoid pesticides even more climacteric. In essence, the study indicates that bees may be undertaking the human equivalent of chain-smoking themselves to death. Authors of the study note that numerous studies have been performed that subject bees to neonicotinoid-treated food, however this research generally allows pollinators to only forage on contaminated sources. While this provides important information on hazard criteria, it does not indicate risk of exposure. Positing the idea that pollinators may eventually seek to avoid neonicotinoid-contaminated nectar, researchers provided bumblebee colonies with a choice over the course of 10 days. At the start, the bees exhibited no discernable preference between toxic and nontoxic food. However, as time went on more and more bees fed from nectar laced with thiamethoxam, a widely used neonicotinoid. By the end of the experiment, food containing 2 parts per billion of the pesticide was eaten 10% more than in […]

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Ocean Mammals Genetically Vulnerable to Certain Pesticides

Wednesday, August 29th, 2018

(Beyond Pesticides, August 29, 2018) As pesticides drain from agricultural fields, they can poison waterways and coastal areas and harm wildlife. Now, a study finds that a gene that helps terrestrial mammals break down certain toxic chemicals appears to be faulty in marine mammals — potentially leaving manatees, dolphins and other warm-blooded aquatic life more sensitive to toxic pesticides, especially organophosphates. As marine mammals evolved to make water their primary habitat, they lost the ability to make a protein that has the effect of defending humans and other land-dwelling mammals from the neurotoxic effects of certain pesticides. The gene, PON1, carries instructions for making a protein that interacts with fatty acids ingested with food. But that protein has taken on another role in recent decades: breaking down toxic chemicals found in a popular class of pesticides – organophosphates. An inspection of the genetic instructions of 53 land mammal species in the study, “Ancient convergent losses of Paraoxonase 1 yield potential risks for modern marine mammals,” found the gene intact. But in six marine mammal species, Paraoxonase 1 (PON1) was riddled with mutations that made it useless. The gene became defunct about 64 million to 21 million years ago, possibly due to dietary or behavioral changes related to […]

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