Archive for the 'Biomonitoring' Category
17
Sep
(Beyond Pesticides, September 17, 2019) The poisonous farm fields migratory birds forage on during their journey reduce their weight, delay their travel, and ultimately jeopardize their survival, according to new research published in the journal Science.  Like their effects on pollinator populations, neonicotinoid insecticides generally are not killing migratory songbirds outright, but instead precipitating a cascade of sublethal impacts that reduces their fitness in the wild. As the authors told Environmental Health News, the study is a call not simply to ban neonics or one class of chemical, but to change the entire farming system toward more sustainable bird and bee-friendly practices. Using new technology, this study was not only able to dose wild-caught songbirds (white-crowned sparrows), but also track their migration route using automated telemetry. Apart from the control group that received no pesticide exposure, sparrows were treated at levels well below the median lethal dose (3% of the lethal dose in the â€low’ exposure group and 10% within the â€high’ exposure group), and permitted to continue on their migratory path. These are exposure amounts similar to a songbird accidentally ingesting a few treated seeds, according to the study. Within six hours, both the â€low’ and â€high’ exposure group […]
Posted in Agriculture, Bayer, Birds, Imidacloprid, neonicotinoids, Pollinators, Uncategorized, Wildlife/Endangered Sp. | No Comments »
13
Sep
(Beyond Pesticides, September 13, 2019) A study on the use of the herbicide dicamba’s off-target effects finds broad impacts, in both geographic spread and the variety of affected species, with use of the weed killer on Arkansas cropland putting birds at risk in agricultural landscapes. Audubon of Arkansas is reporting results of its community science dicamba monitoring project, conducted under the direction of Bird Conservation Director Dan Scheiman, PhD, and launched in late spring 2019. The project monitored dicamba symptomology in species on municipal, state, and federal lands, where dicamba was not applied, but where its impacts were nonetheless detected. Arkansas Audubon “predicts that in a landscape full of GMO crops [genetically modified organisms] (on which dicamba is typically used), the atmospheric loading of volatile dicamba could be enough to cause landscape scale damage to our state natural areas, wildlife management areas, national wildlife refuges, family farms, and the wildlife they harbor.” Dicamba herbicides are volatile compounds used to control broadleaf weeds — especially on fields of GMO soybean and cotton crops that have been genetically engineered for resistance to dicamba. These herbicides damage non-GMO crops and native plants well beyond intended application areas. (In 2017, more than 3 million acres of […]
Posted in Agriculture, Birds, Dicamba, Genetic Engineering, Glyphosate, Pesticide Drift, Uncategorized | No Comments »
09
Sep
(Beyond Pesticides, September 9, 2019) New rules proposed by the Department of Labor (DOL) will weaken protections for both foreign and domestic farmworkers who grow and harvest the nation’s food. The changes would affect the H-2A guestworker program, which permits U.S. farms to temporarily hire foreign workers. Despite rapid increases in foreign agricultural workers over the past several years, the new rules would expand the program and make it easier for agrichemical companies to exploit foreign labor, driving down working conditions and pay for all farmworkers. Tell Congress to stop DOL from weakening farmworker protections. DOL’s proposed rules would eliminate the obligation for growers to provide priority to U.S. farmworkers during the first half of a work contract, and extend the ability for growers to bring in foreign labor throughout the growing season. Growers would also be able to change job terms and work locations in the middle of a growing season. This would increase job insecurity for U.S. farmworkers, who are already facing tough economic conditions. As described by Farmworker Justice, “The Trump Administration seeks to guarantee agribusiness unlimited access to a captive workforce that is deprived of economic bargaining power and the right to vote. The proposal epitomizes the […]
Posted in Farmworkers, Take Action, Uncategorized, US Department of Agriculture (USDA) | 1 Comment »
29
Aug
(Beyond Pesticides, August 29, 2019) The Peoples Garden, located on the grounds on the U.S. Department of Agriculture (USDA) on the national mall, has been renamed and remodeled to highlight genetically engineered (GE) crops and farming techniques that directly counter the organic movement. The new exhibit, entitled “Voice of the Farmer,” is part of the “Trust in Food” initiative of Farm Journal magazine. This marks a continuation of trends in the Trump administration: pushing for GE/GMOs and pesticides. Since 2009, the USDA Peoples Garden has highlighted organic agriculture. It was originally envisioned by the Obama administration as a place where visitors could learn about what differentiates organic from conventional chemical-intensive food production, and the practices used in organic land management. The garden had several different exhibits: the Three Sisters Garden, the People’s Garden Apiary, three green roofs, a certified organic vegetable garden, a tool shed with a rain barrel and green roof, wildlife and pollinator friendly landscaping, and a bat house. With an emphasis on sustainable gardening practices such as cover cropping, storm water collection, and composting, the garden served as a headquarters for numerous Peoples Gardens founded between 2009 and 2016. The People’s Garden and other projects of the […]
Posted in Agriculture, Alternatives/Organics, Genetic Engineering, Uncategorized, US Department of Agriculture (USDA) | No Comments »
05
Aug
(Beyond Pesticides, August 5, 2019) The U.S. Department of Agriculture (USDA) appears to have forgotten the lesson learned 20 years ago when it was forced to ban genetic engineering (GE) in organic regulations. At a July 17 hearing called by the U.S. House Agriculture Subcommittee on Biotechnology, Horticulture, and Research on “Assessing the Effectiveness of the National Organic Program,” Greg Ibach, the USDA’s Under Secretary for Marketing and Regulatory Programs, stated, “There is the opportunity to open the discussion to consider whether it is appropriate for some of these new technologies, including gene editing, to be eligible to be used to enhance organic production.” In 1997, the U.S. Department of Agriculture (USDA) published a draft rule that would have allowed GE, irradiation, and sewage sludge (the “Big Three”) in organic production, which was met by the second largest number of comments the agency had ever received—well before the days of internet advocacy—overwhelmingly opposing the inclusion of the “Big Three.”  The prohibition of gene editing falls under the “excluded methods” provision of the organic regulations. The law prohibits “a variety of methods used to genetically modify organisms or influence their growth and development by means that are not possible under natural conditions […]
Posted in Agriculture, Alternatives/Organics, Genetic Engineering, Take Action, Uncategorized, US Department of Agriculture (USDA) | 1 Comment »
29
Jul
(Beyond Pesticides, July 29, 2019) A research study, published in March in Scientific Reports, uncovers a pesticide effect on a sugar-metabolizing enzyme common to all cells that has broad health ramifications ignored by the U.S. Environmental Protection Agency’s (EPA) safety testing protocol. This finding raises a larger question regarding the need for EPA to test for the synergistic effects of pesticides, whereby pesticides and chemicals in combination have an even greater effect than they do by themselves. The research, by T. Tristan Brandhorst, PhD, Iain Kean, PhD, and others in the lab of Bruce Klein, PhD, of the University of Wisconsin–Madison and UW School ofMedicine and Public Health, specifically sheds light on the mode of action of the fungicide fludioxonil. Fludioxonil, a phenylpyrrole fungicide, was developed to treat seeds during storage, and has come to be used commonly on grains, vegetables, fruits, and ornamental plants during cultivation, and produce after harvest to extend “shelf life.” As reported by the American Association for the Advancement of Science publication, EurekAlert, “The ability of [the fungicide] fludioxonil to act on a sugar-metabolizing enzyme common to all cells, and to produce the damaging compound methylglyoxal, may mean that the pesticide has more potential to harm non-fungal cells than previously […]
Posted in Agriculture, Environmental Protection Agency (EPA), fludioxonil, Fungicides, Oxidative Stress, Pesticide Regulation, synergistic effects, Take Action, Uncategorized | 1 Comment »
25
Jul
(Beyond Pesticides, July 25, 2019) Professors are experiencing damage to their soybean field research as a result of dicamba drift from neighboring agricultural fields. Experts worry that continued drift will make it impossible to carry out public research integral to non-genetically engineered soybean production. These reports, recent studies of dicamba drift potential, and numerous lawsuits counter Monsanto/Bayer’s claims that dicamba poses no drift threat when used properly. Monsanto, now owned by Bayer, manufactures both dicamba and genetically engineered, herbicide-tolerant crops. Dicamba mimics natural plant hormones, auxins, to cause uncontrolled and abnormal growth in non-tolerant plants; soybeans are especially vulnerable. Pengyn Chen, PhD, a professor of soybean breeding and genetics at the University of Missouri’s Fisher Delta Research Center, reports that his soybeans leaves curled up into cups and grew fragile unusual side branches due to dicamba drift. Dr. Chen has seen damage for the past three years as dicamba use has increased around his research station. The nature of Dr. Chen’s work bars him from switching to dicamba resistant crops, a switch many farmers make to avoid the impacts of drift. Dr. Chen studies many varieties of soybeans, including obscure types that private companies ignore. His research aims to find […]
Posted in Agriculture, Arkansas, Contamination, Dicamba, Genetic Engineering, Uncategorized | No Comments »
16
Jul
(Beyond Pesticides, July 16, 2019) USDA’s proposed new rules on genetically engineered (GE) crops exempt almost all GE crops from regulation and allow the company that makes them to decide whether they are safe. The rules proposed by USDA’s Animal and Plant Health Inspection Service (APHIS) benefit companies like Monsanto/Bayer and Dow, but fail to protect farmers, consumers, and the environment. Please tell APHIS to abandon its proposal and support a regulatory system that is consistent with modern science. Tell USDA not to allow companies to approve their own GE crops. The rules would govern USDA’s role in the outdated and fatally flawed “Coordinated Framework for the Regulation of Biotechnology.” The Framework fails to account for the unique risks of genetic engineering, using existing laws like the Plant Protection Act to address issues for which they were not designed. This proposal weakens the APHIS regulations even more. All genetically engineered (GE) organisms—plants, animals, or microorganisms—should be subjected to systematic assessments of human and environmental effects and indirect economic effects (such as contamination of organic or non-GE crops leading to rejection in foreign markets, spread of resistant pests, etc.) before being allowed on the market. These assessments must be made available to the public […]
Posted in Genetic Engineering, Take Action, Uncategorized, US Department of Agriculture (USDA) | 2 Comments »
27
Jun
(Beyond Pesticides, June 27, 2019) A review of scientific literature urges for swift societal action on the collapse of insect populations worldwide, according to authors of a study. The authors point out that while there is a need for more research on the extent of the phenomenon as well as causal factors, there is currently sufficient evidence to spur and inform transformational policy in response to a definite worldwide crisis. The paper, Declines in insect abundance and diversity: We know enough to act now, provides a run-down of actions to take—from national policy to apartment balconies. Recent reports name alarming drops in insect diversity and abundance, prompting the ominous label of “insect apocalypse.” Almost half of all insect species are rapidly declining, and a third are being threatened with extinction. The authors state, “Although there has been some criticism of specific studies, the overall trend is clear and the broad geographic reach is perhaps the most dire feature of the current crisis, as assessments from all continents except Antarctica reveal declines.” The main culprits of insect demise are habitat loss and degradation, pesticides, and climate change. The authors note that it is less critical, at this juncture, to focus on […]
Posted in Pollinators, Uncategorized, Wildlife/Endangered Sp. | No Comments »
24
Jun
(Beyond Pesticides, June 24, 2019) During “Pollinator Week,” last week, the U.S. Environmental Protection Agency betrayed its responsibility to protect the environment and approved “emergency” uses of sulfoxaflor, a bee-toxic insecticide, in 11 states on millions of acres of crops that are attractive to bees. Sulfoxaflor is functionally identical to the neonicotinoid class of systemic pesticides, which are readily absorbed and translocated into the plant tissues, including its pollen and nectar. These insecticides are substantial contributors to the dramatic decline of pollinators and what is now recognized as a global insect apocalypse. Ask Your Elected Members of Congress to Tell EPA that Its Actions Are Unacceptable and Must Be Reversed In 2015, beekeepers sued to suspend the use of sulfoxaflor. A year later, in 2016, the chemical’s registration was amended with the specific exclusion of crops such as cotton and sorghum that attract bees, essentially acting as an aromatic draw to poison. However, EPA regularly utilizes the “emergency exemption” rule under Section 18 of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) to circumvent these restrictions. The Center for Biological Diversity reports, “Ten of the 11 states have been granted the approvals for at least four consecutive years for the same ’emergency.’ Five have […]
Posted in Environmental Protection Agency (EPA), Pollinators, Sulfoxaflor, Take Action, Uncategorized, Wildlife/Endangered Sp. | 3 Comments »
11
Jun
(Beyond Pesticides, June 11, 2019) Genetically engineered (GE) wheat developed to tolerate repeated applications of Bayer Monsanto’s Roundup herbicide has been discovered in a farm field in Washington State. The U.S. Department of Agriculture (USDA) has never approved a GE wheat variety for commercial production, making the incident a potential economic export risk. In the past, Asian and European countries have temporarily blocked purchases of U.S. wheat as a result of GE contamination. Organic and non-GE farmers are also at risk as any contamination with non-GE varieties can result in loss of certifications and price premiums. According to USDA, the discovery was made on an unplanted wheat field, though officials have refused to disclose where in the state the GE plants were found. In 2013, a similar situation played out in Oregon after a farmer noticed wheat plants persisting after an application of Roundup. The discovery led to a number of lawsuits against agrichemical company Monsanto, which is now owned by Bayer Cropscience. At the time, Monsanto indicated that the incident was isolated, or potentially even the result of “sabotage.” An investigation by USDA was inconclusive, indicating the case “appears to be an isolated occurrence and that there is no […]
Posted in Agriculture, Contamination, Genetic Engineering, Uncategorized, Washington | 1 Comment »
31
May
(Beyond Pesticides, May 31, 2019) Research from Finland provides clear evidence that there is a positive relationship between organic animal farms and bird abundance. While chemical-intensive agriculture is currently a major driver of biodiversity loss worldwide, organic practices can, conversely, bolster wild populations. Furthermore, the research points to the value of scientific analysis to inform policy. Researchers questioned whether agri-environment-climate schemes (AES), policy elements in the EU where farmers are rewarded for various practices that support biodiversity, are having an impact on the abundance of 46 bird species associated with farmland. They studied the effect of various AES measures related to bird species traits (e.g. diet, migration ecology, Red List status). Using citizen science data from local bird watchers and land use assessments, researchers utilized ArcGIS mapping tools and statistical analysis to quantify relationships among factors. Organic livestock farming was the only AES measure that had a significant effect on bird abundance. Insectivorous birds as well as long-distance migrant species had the highest positive relationship to organic animal farms. In the discussion, the authors reason that organic animal farms with nutrient-rich, antibiotic-free manure likely increases insect abundance which in turn supports insectivorous and, to a lesser degree, omnivorous birds. Previous […]
Posted in Agriculture, Alternatives/Organics, Uncategorized, Wildlife/Endangered Sp. | No Comments »
30
May
(Beyond Pesticides, May 30, 2019) Last week, the U.S. Fish and Wildlife Service (FWS) agreed to a 2020 deadline for reaching a decision on protection status for monarch butterflies under the Endangered Species Act. This agreement comes nearly five years after the filing of a petition by conservationists with the Center for Biological Diversity and Center for Food Safety led to the launch of an ongoing status review in 2014. While FWS deliberates, monarch butterflies continue their staggering, decades-long population decline, perhaps for the last of their decades. In the 1990s, the eastern monarch population numbered nearly one billion butterflies, and the western population numbered more than 1.2 million. Last year’s winter counts recorded around 93 million eastern monarchs and fewer than 200,000 western monarchs. That loss is “so staggering that in human-population terms it would be like losing every living person in the United States except those in Florida and Ohio,” Tierra Curry, a senior scientist at the Center for Biological Diversity, said in a statement to Live Science. Recent studies project that if current trends continue, both eastern and western monarch populations face migratory collapse within the next 20 years. FWS is no stranger to the threats facing monarch […]
Posted in Pollinators, Uncategorized, Wildlife/Endangered Sp. | No Comments »
23
May
(Beyond Pesticides, May 23, 2019) On Monday in the conclusion of a lawsuit, the U.S. Environmental Protection Agency (EPA) announced the final notices of cancellation on the registration of twelve neonicotinoid pesticide products in the Federal Register, each of which contains chlothianidin or thiamathoxam as an active ingredient. The decision to pull these products from the market was required as part of a legal settlement under the Endangered Species Act (ESA) in December 2018 of a successful case, Ellis v. EPA, brought by beekeeper Steve Ellis and a coalition of other beekeepers and environmental groups, including Beyond Pesticides. The case establishes a legal precedent in which the court required action to address the bee-toxic effects of pesticides; however, the effect of the settlement and its impact on overall neonicotinoid and other systemic insecticide use is limited. For all but two of the twelve canceled products, a nearly identical surrogate remains actively registered. Furthermore, the fact remains that there are hundreds more products containing the active ingredients targeted by the lawsuit that have not been removed in any capacity – 106 products containing clothianidin and 95 containing thiamethoxam remain untouched on the market. Breaking down the impacts of the EPA ruling even […]
Posted in Bayer, Environmental Protection Agency (EPA), Fish and Wildlife Service (FWS), neonicotinoids, Pollinators, Uncategorized, Wildlife/Endangered Sp. | No Comments »
13
May
(Beyond Pesticides, May 13, 2019) The Center for Biological Diversity (CBD) filed four lawsuits last week challenging the Trump administration’s failure to release a trove of documents detailing how the administration is regulating dangerous pesticides, especially as they relate to endangered species. Meanwhile, the U.S. Environmental Protection Agency (EPA) released a set of proposed changes last week that would dramatically reduce protections for the nation’s most endangered plants and animals from pesticides known to harm them. The proposals ignore the real-world, science-based assessments of pesticides’ harms, instead relying on arbitrary industry-created models. The EPA proposals would, for example, gut protections for endangered plants that are pollinated by butterflies and other insects by ignoring the fact that animals routinely move back and forth between agricultural areas and places where endangered species live. The proposals follow intensive efforts by Interior Secretary David Bernhardt to halt federal work on protecting wildlife from pesticides. They were released over a year after a draft biological opinion that was scuttled by the Trump administration found that the loss of pollinators from the insecticide chlorpyrifos would put hundreds of endangered species on a path to extinction. The so-called “refinements” will make it easier for the EPA to claim that pesticides […]
Posted in Department of Interior, Dow Chemical, Environmental Protection Agency (EPA), Fish and Wildlife Service (FWS), Uncategorized, Wildlife/Endangered Sp. | 1 Comment »
01
May
(Beyond Pesticides, May 1, 2019) Evidence of the dangers of glyphosate continues to mount: researchers at Washington State University have identified, in research that exposed pregnant rats to the compound, significant disease and pathology in subsequent generations. The rats were exposed, from day 8 through day 14 of gestation, to half the observable adverse effect level (NOAEL) of glyphosate. Although this study found negligible impacts on the pregnant rats themselves or on their first-generation offspring, dramatic increases in incidence of pathology showed up in the two subsequent generations, including reproductive (prostate and ovarian) and kidney diseases; obesity; and birth anomalies. The study, published in the journal Scientific Reports (an open access, multidisciplinary journal from Nature Research), and conducted by Michael Skinner, Ph.D. and five colleagues, is the first to assess the potential transgenerational impacts of glyphosate in mammals. Its results point to an emerging frontier in assessing the risks of glyphosate and other toxic chemicals, and add to the urgent and growing demand that the use of this particular toxic — and pervasive — pesticide be halted. The research team was interested in looking at possible transgenerational impacts of glyphosate in part because of its ubiquity: it is one of the […]
Posted in Bayer, Birth defects, Glyphosate, Kidney failure, Monsanto, multi-generational effects, Obesity, Prostate Cancer, Reproductive Health, Uncategorized | No Comments »
24
Apr
(Beyond Pesticides, April 24, 2019) On April 19, the U.S. Court of Appeals for the 9th Circuit ordered the U.S. Environmental Protection Agency (EPA) to provide a justification for why chlorpyrifos, a neurotoxic insecticide commonly used in agriculture, should remain in the U.S. market. The EPA has 90 days to comply. Chlorpyrifos has been linked to damaging and often irreversible health outcomes in workers, pregnant women, and children. Low levels of exposure early in life can lead to increased risk of learning disabilities including lowered IQ, developmental delay, and attention deficit/hyperactivity disorder (ADHD). Farmworkers and their children are disproportionately affected by the use of this chemical because they are exposed at work, home, and even at school. “While we are moving forward, the tragedy is that children are being exposed to chlorpyrifos, a pesticide science has long shown is unsafe,” said Earthjustice Attorney Patti Goldman in a statement. “We hope Trump’s EPA finally decides to protect the future of countless children and the health of millions of farmworkers.” The battle against chlorpyrifos has been long and drawn out, though there has been significant movement in the last few months. Beyond Pesticides has put together a brief timeline of events: A […]
Posted in ADHD, Agriculture, Children, Chlorpyrifos, Farmworkers, Nervous System Effects, Uncategorized | No Comments »
12
Apr
(Beyond Pesticides, April 12, 2019) The Center for Biological Diversity (CBD) announced on April 3 that it is suing the U.S. Fish and Wildlife Service (FWS) for its failure to release public records, despite multiple FOIA (Freedom of Information Act) requests, that would reveal on-the-ground impacts of FWS allowing use of neonicotinoids and genetically engineered (GE) crops in wildlife refuges. Last August, in yet another rollback of protections for wildlife, the environment, and public health, the Trump administration reversed a 2014 FWS decision to ban the use of neonicotinoids and GE crops in National Wildlife Refuges. If successful, the CBE lawsuit, filed in U.S. District Court for the District of Columbia, would compel the agency to provide the requested documents. This would allow the public, largely through the work of NGO (non-governmental organization) watchdogs, such as CBD and Beyond Pesticides, to understand what harms are being caused on the nation’s protected public lands by the administration’s reversal of the 2014 ban. Hannah Connor, a CBD senior attorney, said, “The goal of the lawsuit is to get them to comply with the Freedom of Information Act and produce the records that have been requested. . . . We aren’t asking them to […]
Posted in Fish and Wildlife Service (FWS), Genetic Engineering, neonicotinoids, Pollinators, Uncategorized | 2 Comments »
10
Apr
(Beyond Pesticides, April 10, 2019) Last month, the Washington State Senate unanimously passed HB 1906, designating April 10 as Dolores Huerta Day. In July of 2018, a similar California law proclaimed April 10 Dolores Huerta Day in that state. In an interview with Vida del Valle, Ms. Huerta stated, “I’m happy to hear that our young learners will have the opportunity to learn more about social justice and civil rights, because there is still a lot of work to do by the Dolores Huerta Foundation.” Following decades of leadership in the fight for farmworker justice, Ms. Huerta founded the Dolores Huerta Foundation in 2002, with a focus on grassroots organizing in Central Valley. According to its website, the Dolores Huerta Foundation trains low-income Central Valley residents “to advocate for parks, adequate public transportation, infrastructure improvements, the reduction of pesticide use, increased recreational opportunities, and culturally relevant services.” “We build leadership in low-income communities and organize people so that they can have a sense of their own voices and their own power,” Ms. Huerta said of her foundation in an interview with Civil Eats. “Once they understand this process and they have the power to change policy – and politicians – they […]
Posted in Environmental Justice, Farmworkers, Uncategorized | No Comments »
26
Mar
(Beyond Pesticides, March 26, 2019) In a study investigating the carcinogenic effects of pesticide exposure by analyzing data on 316,270 farmers and farmworkers in the U.S., Norway, and France, researchers have identified elevated risk for non Hodgkin lymphoma (NHL) and some subtypes, linking glyphosate and large B-cell lymphoma. Other pesticides linked to the disease include the pyrethroid deltamethrin and chronic lymphocytic leukemia/small lymphocytic lymphoma; and terbufos and NHL overall. Researchers also found “inverse associations of NHL overall with the broader groups of organochlorine insecticides and phenoxy herbicides, after adjusting for exposure to other pesticides”; such inverse associations were not found with active ingredients within these groups. The research underscores how complex the science of pesticide impacts on human health, and on cancer incidence, can be. To wit: in evaluating 14 different pesticide categories and 33 individual, active chemical ingredients, Maria E. Leon, et al., conclude that associations of pesticides with the development of NHL appear to be (NHL) subtype- and chemical-specific. Published in the International Journal of Epidemiology in mid-March, the study, “Pesticide use and risk of non-Hodgkin lymphoid malignancies in agricultural cohorts from France, Norway and the USA: a pooled analysis from the AGRICOH consortium,” uses data from three large cohort […]
Posted in Agriculture, Deltamethrin, Farmworkers, Glyphosate, non-Hodgkin's Lymphoma, Synthetic Pyrethroid, terbufos, Uncategorized | 1 Comment »
22
Mar
(Beyond Pesticides, March 22, 2019) A two-year study, published March 14, finds that field-relevant contamination with the neonicotinoid insecticide imidacloprid causes reduced body weight and metabolism in white-tailed deer, and – in fawns – mortality. Remarkably, researchers uncovered imidacloprid levels in free-ranging deer a full 3.5 times higher, on average, than the levels in the animals treated in their experiment. These new findings add to the mounting evidence of the hazards posed by current patterns of neonicotinoid use, while evidence of benefits remains sparse. The study, published in Nature Scientific Reports, includes two years of data on the physiological and behavioral outcomes of imidacloprid contamination in 80 white-tailed deer housed in a South Dakota State University captive research facility. Notably, researchers were unable to entirely control imidacloprid levels in untreated deer, most likely due to background contamination from corn- and soy-based feed, and surrounding vegetation infiltrated by runoff from nearby agricultural fields. This background contamination altered, but did not compromise, the analysis. Researchers found that imidacloprid levels detected in the spleens of treated and control animals were significantly predictive of reduced thyroid hormone levels, shorter jawbones, lower activity levels, and higher fawn mortality. Lead authors Elise Berheim, Jonathan Jenks, PhD, […]
Posted in Agriculture, Environmental Protection Agency (EPA), Imidacloprid, neonicotinoids, Uncategorized, Wildlife/Endangered Sp. | No Comments »
11
Mar
(Beyond Pesticides, March 11, 2019)  We must stop the expanded commercialization of genetically engineered pesticides. The failure of the U.S. Environmental Protection Agency (EPA) to fully evaluate environmental impacts of gene-manipulating pesticides raises serious concerns in light of the agency’s ongoing failure to predict ecological effects of pesticides, such as the dramatic decline of pollinators. With the release of a 2019 peer-reviewed scientific article, Environmental Fate of RNA Interference Pesticides: Adsorption and Degradation of Double-Stranded RNA Molecules in Agricultural Soils, on the potential impact on soil and non-target microorganisms in soil, the study’s co-author, Kimberly Parker, PhD, remarked, “The ecological risk assessment of these emerging pesticides necessitates an understanding of the fate of dsRNA [double stranded RNA] molecules in receiving environments, among which agricultural soils are most important.” This technology, given that it is systemic to the plant and leaves traces in the soil, can cause widespread indiscriminate poisoning—as has been seen with bees, butterflies, birds, and the larger catastrophic decline of insect populations. Tell your members of Congress that the ecological effects of RNAi gene-manipulating pesticides raise serious questions—they have not been fully studied by EPA and, until they are, the agency should issue a moratorium on their release. Previously, […]
Posted in Agriculture, Environmental Protection Agency (EPA), Genetic Engineering, RNAi, Take Action, Uncategorized | 1 Comment »
08
Mar
(Beyond Pesticides, March 8, 2019) Researchers from the U.S. and Switzerland have published their findings, a beginning assessment of how use of a new category of pesticides — dsRNA (double stranded RNA), which is less a traditional pesticide than a genetically based pesticide “technology” — might impact soils and non-target microorganisms in the soil. The co-authors (Kimberly M. Parker, PhD, et al.) note that, “The ecological risk assessment of these emerging pesticides necessitates an understanding of the fate of dsRNA molecules in receiving environments, among which agricultural soils are most important.” Their research appeared in late January 2019 in Environmental Science & Technology. Previously, technical hurdles in measuring dsRNA had stymied scientists’ ability to quantify the genetic material and its degradation products in soil, but these investigators were able to attach a radioactive atom to the molecule, “tagging” it so it could be followed through a series of simulated soil systems representative of those in the “real” world. Researchers were able to measure the presence of the material at concentrations as low as a few nanograms of dsRNA per gram of soil. The work of these researchers represents the beginning of understanding the ecological risks of these emerging dsRNA pesticides. They demonstrated […]
Posted in Dow Chemical, Environmental Protection Agency (EPA), Genetic Engineering, RNAi, Uncategorized | No Comments »