(Beyond Pesticides, June 6, 2024) Researchers link pesticide exposure to behavioral effects on zebrafish (Danio rerio) larvae, signaling a larger issue for overall population and ecosystem effects. In a study published in Biomedicines, the authors conduct a multi-behavioral evaluation of the effects of three pesticides, both individually and as mixtures, on larvae. As the authors state, “Even at low concentrations, pesticides can negatively affect organisms, altering important behaviors that can have repercussions at the population level.” By analyzing effects on individual zebrafish with single compounds and mixtures, this study shows the dangers of pesticides in aquatic systems regarding synergy (a greater combined effect when substances mix) and the ripples created throughout entire ecosystems. Researchers from the Department of Morphology and Animal Physiology, as well as the Department of Physics, from the Rural Federal University of Pernambuco in Brazil collaborated with the Department of Biology at Indiana University in Indianapolis to perform the study. The researchers exposed zebrafish larvae to carbendazim, fipronil, and sulfentrazone to determine any behavioral effects on anxiety, fear, and spatial/social interaction for each compound separately and in combination. Each compound and mixture were applied to embryo medium, exposing fertilized zebrafish eggs. The embryos of zebrafish hatch, or […]

(Beyond Pesticides, May 23, 2024)  A study recently published in the journal Nature compared the impact of organic and conventional food production using eight environmental health indicators and found that organic food has a significantly lower environmental impact than conventional food production for six of the eight indicators, including a lower potential for contributing to acidification of the environment, energy use, and biodiversity loss. For the analysis, scientists reviewed 100 different “life cycle assessments” (LCA) of organic and conventionally grown food products from cradle-to-farm gate.    LCA is a commonly used methodology to estimate food production system impacts on the environment through resource depletion and pollutant emissions. The results—that organic food production is less impactful on the environment—add to the robust body of research that underscores the importance of organic farming to the development of a sustainable global food system while addressing climate change. Beyond Pesticides has long argued that one of the most powerful tools in fighting global warming is organic agriculture, as it sequesters atmospheric carbon, eliminates the use of fossil fuel-based synthetic fertilizers and synthetic pesticides, and provides environmental and human health benefits. This study and most of the 100 studies it evaluates, do not recognize that conventional […]

(Beyond Pesticides, May 16, 2024) In a recent study at the Institute of Biochemistry and Molecular Biology at Ulm University in Germany, published in Current Research in Toxicology, scientists exposed embryos of South African clawed frogs (Xenopus laevis) to three neonicotinoids (NEOs), which led to developmental effects down to a molecular level. These frogs are a well-established model species often used in ecotoxicology studies as bioindicators for overall environmental and ecosystem health. When amphibian species like Xenopus laevis are exposed to contaminants in the water, it leads to negative impacts in the food chain and harms biodiversity. The study concludes that exposure to NEOs directly or through contaminated water leaves entire ecosystems vulnerable.    The NEOs that the embryos were subjected to include imidacloprid (IMD), thiamethoxam (TMX), and its metabolite clothianidin (CLO). NEOs are a class of insecticides that target the central nervous system of insects and lead to death. These insecticides pose a potential hazard to nontarget organisms, such as animals and humans, since they are persistent in the environment and “are found in natural waters as well as in tap water and human urine in regions where NEOs are widely used,” this study states. The authors continue by […]

(Beyond Pesticides, April 24, 2024) On April 16, 2024, the U.S. Environmental Protection Agency (EPA) posted an “update” to the Draft Herbicide Strategy Framework (Draft Herbicide Strategy Framework to Reduce Exposure of Federally Listed Endangered and Threatened Species and Designated Critical Habitats from the Use of Conventional Agricultural Herbicides) that was released last summer, weakening aspects of the agency’s efforts to “protect” endangered species from herbicide use. The update outlines three types of modifications to the Draft Strategy, including “simplifying” its approach, increasing growers’ “flexibility” when applying mitigation measures, and reducing the mitigation measures required in certain situations. By reducing the stringency of the Strategy, advocates are again questioning EPA’s commitment to fulfilling legal requirements under the Endangered Species Act (ESA) or protecting endangered species and their habitats in the midst of an unprecedented rate of global extinction. ESA is celebrated as one of the most far-reaching conservation laws globally, credited with preventing the extinction of 99 percent of those species the government targets for protection, according to the U.S. Fish and Wildlife Service (USFWS). ESA establishes a framework to categorize species as “endangered” or “threatened,” granting them specific protections. Under ESA, EPA is required to consult with relevant agencies […]

(Beyond Pesticides, January 23, 2024) Earlier this month, a coalition of over 140 local and state elected officials from over 30 states sent a letter to ranking members of the House and Senate Agriculture committees to reject the proposed Agricultural Labeling Uniformity Act (H.R. 4288), which would preempt local governments’ authority to protect their constituents from toxic pesticides. Members of Congress are negotiating language in the Farm Bill that would preempt local and state authority to restrict pesticides. “We write to express our strong opposition to any efforts to limit longstanding state and local authority to protect people, animals, and the environment by regulating pesticides,” says the signatories. “As Congress considers legislation related to agriculture, including the reauthorization of the Farm Bill and Fiscal Year 2024 appropriations bills, we urge you to ensure that state, county, and local governments retain the right to protect their communities and set policies that best suit our local needs.” The question of local rights to adopt more stringent restrictions on pesticide use has historically been left to the states. However, after the U.S. Supreme Court (Wisconsin v. Mortier, 1991) affirmed the rights of local communities under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA), […]

(Beyond Pesticides, January 16, 2024) The U.S. Environmental Protection Agency (EPA) has long been criticized for its failure to evaluate the effectiveness (or efficacy) of all the pesticides it registers. A petition, for which there is now an open public comment period (submit comments by January 22, 2024), challenges what advocates call a basic failure of the agency to evaluate the claimed benefits of pesticides. Because of this long-standing situation, those who purchase pesticides do not know that the pesticides they buy will meet expectations for control. For farmers, that means that EPA has not evaluated whether the pesticide’s use actually increases productivity of the treated crops and/or whether over time the target pest (weed, insect, fungus) will become resistant. For consumers, it also means that there is not an independent analysis of whether the pesticide products work. As EPA implements the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), not only is there no agency assessment of whether the pesticide’s use will achieve its intended purpose, there is not a determination as to whether there is a less toxic way of achieving the pest management goal. As Beyond Pesticides cited last year, a piece published in the Proceedings of the […]

(Beyond Pesticides, December 19, 2023) Last week, farmworker organizations and Beyond Pesticides, represented by the Center for Food Safety, filed a petition with the U.S. Environmental Protection Agency (EPA) urging that the weed killer glyphosate be removed from the market. The petition cites 200 studies, which represent a fraction of the independent scientific literature on the hazards of glyphosate and formulation ingredients of glyphosate products. This action follows previous litigation in 2022 in which a federal court of appeals struck down EPA’s human health assessment, finding that the agency wrongfully dismissed glyphosate’s cancer risk. The farmworker groups petitioning include Farmworker Association of Florida, Organización en California de Lideres Campesinas, Alianza Nacional de Campesinas, and the Rural Coalition.   Meanwhile, verdicts against glyphosate’s manufacturer, Bayer, continue to pile up with a December jury verdict in Pennsylvania awarding $3.5 million and a November jury in Missouri ordering $1.56 billion to be paid to four plaintiffs. All link their cancer to use of the Roundup. Bayer has lost almost all of the cases filed against it for compensation and punitive damages associated with plaintiffs’ charge that its product (previously manufactured by Monsanto) caused them harm.  The petition summarizes its purpose and justification as […]

(Beyond Pesticides, November 30, 2023) Scientists at Minami Kyushu University in Japan have made a groundbreaking discovery of a new biological control for a target insect. They have identified a virus in tobacco cutworms that kills males, creating all-female generations. The discovery was described in a recent issue of the Proceedings of the National Academies of Sciences and The New York Times as evidence that multiple viruses have evolved to kill male insects. This “male-killing” virus could be added to the growing attempts to control unwanted insects with biological, as distinguished from genetically engineered (GE) solutions. Efforts range from the introduction of natural predators, to radiation-based sterilization of insects, CRISPR-based genetic mutations, and other techniques. While the GE approach has run into controversy because of unanswered questions associated with their release into natural ecosystems, some approaches have also run into resistance problems. Nearly a decade ago, researchers found armyworm resistance to Bacillus thuringiensis (Bt)-incorporated genetically engineered (GE) maize in the southeastern region of the U.S., calling this evolution of insect resistance to a naturally occurring soil bacterium engineered into crops “a serious threat to the sustainability of this technology.” The general population knows to avoid eating raw eggs because the bacteria salmonella, […]

(Beyond Pesticides, October 20, 2023) Comments are due October 22. This action requires use of Regulations.gov. See instructions and proposed comment language that can be copy and pasted by clicking HERE. The U.S. Environmental Protection Agency’s (EPA) plan to “protect” endangered species, its Draft Herbicide Strategy Framework, continues a legacy of failed risk assessment and mitigation measures that do not meet the moment of looming biodiversity collapse. This is a critical time for the agency to embrace real fundamental change in how it regulates pesticides, recognizing that land management strategies, including in agriculture, exist that are no longer reliant on pesticides. This is not a time to tinker with strategies that EPA admits fall short. Recognizing that its Pesticide Program has failed to meet its obligation to protect endangered species from registered pesticides, EPA has come up with a strategy to redefine its responsibilities to protect endangered species in its pesticide registration and registration review program. According to EPA, “The proposed Strategy is structured to provide flexibility to growers to choose mitigations that work best for their situation. Additionally, the draft Strategy may require more or less mitigation for growers/pesticide applicators depending on their location.” Understandably, EPA has taken this approach, […]

(Beyond Pesticides, October 16, 2023) After six years, the Environmental Protection Agency (EPA) finally responded to a citizen petition requesting that the agency evaluate complete formulations of pesticide products, not just the ingredients the manufacturer claims attack the target pest (so-called “active” ingredients). EPA’s response: No. Nowhere in EPA’s denial of the need for a more robust toxicological analysis is the problem more evident than in its refusal to require analyses of the so-called “inert ingredients” or “adjuvants” included in various formulations of pesticide products. The citizen petition [see more background] was followed by a lawsuit for the same purpose in 2022. Inerts and formulants are substances that enhance the distribution or adhesion of the active ingredient; adjuvants enhance the effectiveness of the active ingredient. These terms suggest that those chemicals have no effect on anything in the area where the pesticide is applied—a wildly inaccurate implication. At least as early as 1987, EPA had recognized that some inerts and adjuvants were “of toxicological concern,” yet it still requires very few toxicological tests of whole-formula pesticides or their purportedly inactive components. EPA responded to the petition as follows: “[T]he Agency appropriately assesses, as part of its review, the impacts to […]

(Beyond Pesticides, October 2, 2023) On the 50th anniversary of the Endangered Species Act (ESA), statements out of the U.S. Environmental Protection Agency (EPA) raise concerns about the agency’s ability to meet the challenge of evaluating pesticides for their adverse impact on threatened and endangered species. While EPA has initiated efforts to address a significant backlog of pesticide evaluations, the agency faces a task so extensive that it may require several additional decades to fully catch up. EPA officials stated, “Even if EPA completed this work for all of the pesticides that are currently subject to court decisions and/or ongoing litigation, that work would take until the 2040s, and even then, would represent only 5 percent of EPA’s ESA obligations.”   As part of a “whole of government” approach, EPA must redirect its pesticide program to protecting all species and their habitats.   The speed and depth of biodiversity loss has reached crisis proportions. A 1,500-page report in 2019 by Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES )—Global Assessment Summary for Policymakers, the most comprehensive look to date at the biodiversity crisis and its implications for human civilization, makes the following finding: “Since 1970, trends in agricultural production, fish harvest, […]

(Beyond Pesticides, July 3, 2023) Mosquito season is upon us, and to many that means spraying pesticides to kill them. But not only is spraying flying mosquitoes the most ineffective way to prevent mosquito problems, it is also counterproductive because it eliminates some of our most attractive and helpful allies—birds. Tell EPA to eliminate pesticides that threaten birds or their insect food supply. Tell the U.S. Fish and Wildlife Service and Department of Interior to protect birds by eliminating the use of pesticides that threaten them. Tell Congress that EPA and other agencies need to do their job and protect birds and other mosquito predators. While the appetite of purple martins for mosquitoes is well known, most songbirds eat insects at some stage of their life. Many birds who eat seeds or nectar feed insects to their young, including flying insects that may be bothersome–like mosquitoes or flies. Altogether, birds consume as many as 20 quadrillion individual insects, totaling 400-500 million metric tons, per year. Mosquito-eating birds include many well-known residents of our communities. They include, for example, wood ducks, phoebes and other flycatchers, bluebirds, cardinals, downy woodpeckers, swallows, swifts, robins, orioles, wrens, great tits, warblers, nuthatches, hummingbirds, red-winged blackbirds, […]

(Beyond Pesticides, May 30, 2023) On Endangered Species Day, May 19, the U.S. Environmental Protection Agency (EPA) revealed an unfortunate degree of hypocrisy in its claims to protect endangered species from pesticides. Tell EPA and Congress that dwindling biodiversity is an existential crisis that requires removing serious threats posed by pesticides. EPA announced that it “is publishing a group of StoryMaps to raise public awareness about protecting endangered species from pesticides.” It continues, “Through its Vulnerable Species Pilot, EPA has been identifying endangered species that are vulnerable to pesticides, developing mitigations to protect them from pesticide exposure, and will apply the mitigations to many types of pesticides.” However, pesticide use is a major cause of declining biodiversity, which is manifested in extinctions, endangered species, and species vulnerable to environmental disturbances—including climate change, habitat fragmentation, and toxic chemicals. If EPA is serious about protecting biodiversity, it must look first at the ways it has created the crisis in the first place. Studies upon studies upon studies show that pesticides are a major contributor to the loss of insect biomass and diversity known as the “insect apocalypse,” particularly in combination with climate change. Insects are important as pollinators and as part of […]

(Beyond Pesticides, April 18, 2023) Health officials in France are alerting the public that a majority of drinking water samples tested by the government contain the presence of the highly toxic fungicide chlorothalonil. The findings highlight a stark divide between regulations and public health management in the European Union and United States. While EU member states have banned this chemical and are working to understand and address lingering effects, tens of millions of pounds of chlorothalonil continue to be sprayed throughout the U.S. annually. French officials say they conducted this research after researchers in Switzerland found evidence of the fungicide in drinking water. A few years ago, Swiss scientists released a report showing Evian bottled water, touted for its claims of purity, was found to contain measurable levels of chlorthalonil.  “The fact that even the Evian springs in the French Alps, which are hardly affected by humans, contain pesticide residues is alarming and shows the far too careless handling of these substances,” Roman Wiget, president of the international drinking water association AWBR told the German-language Swiss weekly at the time. The EU banned uses of chlorothalonil in 2019, due to concerns over water contamination, the effects of such contamination on fish […]

(Beyond Pesticides, January 9, 2023) The Biden EPA still needs a new vision in order to meet the existential crises in public health, climate change, and biodiversity. The Trump Environmental Protection Agency (EPA) reversed in four years much of the progress made by the EPA in decades. Despite a broad new perspective embodied in President Biden’s Executive Memorandum (EM) Modernizing Regulatory Review issued on his first day in office, the Biden EPA has not adopted a new direction for regulating pesticides. Tell President Biden, EPA, and Congress to adopt a new direction for pesticide regulation. Immediately following his inauguration, President Joe Biden issued the EM, which directs the heads of all executive departments and agencies to produce recommendations for improving and modernizing regulatory review, with a goal of promoting public health and safety, economic growth, social welfare, racial justice, environmental stewardship, human dignity, equity, and the interests of future generations. This EM could reverse the historical trend of status-quo regulatory reviews required by the White House Office of Management and Budget (OMB) that typically support vested economic interests of polluters (e.g., petroleum-based pesticide and fertilizer manufacturers). The President’s EM sets the stage for the adoption of agency policy across government to […]

(Beyond Pesticides, September 27, 2022) Exposure to widely used neonicotinoid insecticides harms amphibians at multiple life stages, adversely affecting their ability to survive in the wild, according to research published in the Journal of Zoology. As long-lived, systemic insecticides, neonicotinoids are consistently found in U.S. waterways,  often above federal safety limits, making these findings particularly dangerous for frogs and other amphibians throughout the country. As troubling data piles up on this class of dangerous insecticides, which are damaging pollinators, birds, deer, aquatic wildlife, and human health, it is left to the public to place pressure on federal regulators and members of Congress to act. To understand the impact of neonicotinoids on amphibian life stages, researchers conducted a range of  experiments. These were designed to investigate how exposure to the neonicotinoid imidacloprid affected larval survival, sexual development, locomotor skills, and avoidance behavior of the wood frog (Rana sylvatica). Larval survival was examined by exposing tadpoles to 10 parts per billion (ppb) of imidacloprid, a rate lower than the lethal concentration expected to kill half of other frogs species in acute toxicity tests. Four treatment protocols were established, adding the variable of natural pond drying to half of the tested frogs to […]

(Beyond Pesticides, September 9, 2022) One kind of solution to the biodiversity crisis that is likely not on most folk’s bingo cards comes from a Nevada cattle rancher, who has shifted his relationship with . . . wait for it . . . beavers. As climate change impacts ramp up their toll in the U.S. via intensified droughts, floods, and wildfires, solutions are widely and eagerly sought, if deployed at insufficient pace. In this Nevada case, Agee Smith — unlike his rancher father, who reportedly “waged war against the animals, frequently with dynamite” — welcomes beavers and their industry on his ranch land. Doing so has yielded multiple benefits for his operation, the environment, and biodiversity. As reported by The New York Times, “Mr. Smith has become one of a growing number of ranchers, scientists and other “beaver believers” who see the creatures not only as helpers, but as furry weapons of climate resilience.” Many landowners, of all stripes, consider beavers to be destructive “nuisance” animals that wantonly fell trees, and in so doing sometimes flood farm fields, back yards, roads, forests, or grazing acreage. Public complaints about such behaviors resulted in the federal government’s killing of more than 25,000 beavers […]

(Beyond Pesticides, August 24, 2022) New research is helping the medical community understand the mechanism through which exposure to the banned insecticide DDT increases risk of Alzheimer’s disease. Published in the journal Environmental Health Perspectives, a team of researchers from Florida International University and Rutgers used multiple models to demonstrate the effects of DDT on the production of toxic proteins in the brain. The constant stream of new health risks regarding a chemical banned decades ago underlines the importance of a precautionary approach to pesticide regulation, particularly as red flags are already being raised about the connection between widely used weed killers like glyphosate and neurodegenerative diseases like Alzheimer’s. “The vast majority of research on the disease has been on genetics — and genetics are very important — but the genes that actually cause the disease are very rare,” says study coauthor Jason Richardson, PhD of Florida International University. “Environmental risk factors like exposure to DDT are modifiable. So, if we understand how DDT affects the brain, then perhaps we could target those mechanisms and help the people who have been highly exposed.” Previous research from Dr. Richardson found that DDT exposure increased risk of Alzheimer’s by four times. Scientists […]

(Beyond Pesticides, June 24, 2022) As reported by the Center for Food Safety (CFS), on June 16 the Environmental Protection Agency (EPA) released final Biological Evaluations, for three neonicotinoid insecticides, that indicate that these pesticides are “likely to adversely affect” the vast majority of endangered or threatened species and/or their designated critical habitats. These evaluations for imidacloprid, clothianidin, and thiamethoxam have been a long time coming, and represent, according to the Center for Biological Diversity (CBD), the first time EPA “has completed biological evaluations of any neonicotinoids’ harms to the nation’s most imperiled plants and animals.” These evaluations evidence what CFS, CBD, Beyond Pesticides, and others have maintained for years: that neonicotinoid compounds are very serious threats to the survival and well-being of myriad organisms and habitats. A Biological Evaluation (BE) is an EPA analysis of potential harmful impacts of a registered pesticide on any species federally listed, per the Endangered Species Act, as endangered or threatened, or on their critical habitats. EPA was legally required to issue the determinations by the June 2022 deadline, per CFS litigation and a subsequent 2019 legal settlement. EPA was the defendant in 2017 litigation brought by CFS, with Beyond Pesticides, several beekeepers, and the Center for Environmental […]

(Beyond Pesticides, May 5, 2022) A report published in Biological Conservation finds environmental pollutants, including pesticides, pharmaceuticals, plastics, and particulate matter, adversely affect tropical terrestrial wildlife. Specifically, these contaminants can interact with one another, altering the chemical landscape of the ecosystem, and causing changes in the endocrine and microbiome systems of mammals. Since the publication of Rachel Carson’s Silent Spring (1962), global attention to the danger of pesticides has increased, with environmental agencies banning the use of legacy pesticides like organochlorines for their devastating toxic—sometimes lethal—effects. However, these chemicals can remain in the environment for decades and interact with various current-use pesticides, including organophosphates, neonicotinoids, and pyrethroids. Although many studies demonstrate that environmental pollution plays a significant role in premature deaths among humans, there is a lack of research on how environmental pollution directly affects tropical species mortality. Considering human and wildlife habitats tend to overlap, and chemical pollutants can drift from chemically treated areas, wildlife populations are more likely to experience similar health effects. With the number of chemicals in the ecosystem growing, studies like these highlight the need for pesticide policies that protect human health in addition to the integrity of the chemical landscapes accommodating wildlife. The researchers note, “Using […]

(Beyond Pesticides, March 30, 2022) An article by the Audubon Society covers ongoing advocacy to end pesticide spraying in wildlife refuges. Wildlife refuges act as a sanctuary, providing habitat and protection essential for the survival and recovery of species nationwide. However, portions of the wildlife sanctuary can have agricultural uses, allowing farmers to cultivate crops on various acres, subsequently applying pesticides. Pesticide spraying in or around wildlife refuges threatens the survivability and recovery of species that inhabit the area. Moreover, many of these pesticides are highly toxic to human and animal health. Analyses like these are significant, especially since the globe is currently going through the Holocene Extinction, Earth’s 6th mass extinction, with one million species of plants and animals at risk. With the increasing rate of biodiversity loss, advocates say it is essential for government agencies to enforce policies that eliminate pesticide use in wildlife refuges. Ending pesticide applications in sanctuaries can protect the well-being of animals, humans, and the ecosystem. Hannah Connor, senior attorney at the Center for Biological Diversity (CBD), notes, “It’s not a huge economic driver of the refuge system, and it is truly problematic in terms of fulfilling its mission and goals[…]. That just means it should be […]

(Beyond Pesticides, March 25, 2022) Recent coverage by The Guardian of the U.S. Environmental Protection Agency’s (EPA’s) plan — to extend the registration of several demonstrably harmful neonicotinoid insecticides — compels Beyond Pesticides to identify, once again, the agency’s failures to enact its core mission. That mission is “to protect human health and the environment,” and to ensure that “national efforts to reduce environmental risks are based on the best available scientific information.” EPA has undertaken a review of the registration of several members of the neonicotinoid (neonic) family of pesticides and, despite the agency’s own findings of evidence of serious threats to pollinators, aquatic invertebrates, and other wildlife, it issued interim decisions on these neonics in January 2020 that disregard the science on the pesticides’ impacts. EPA appears to be prepared to finalize these registrations late in 2022; this would, barring further action, extend the use of these harmful compounds for 15 years. Neonics are used widely in the U.S., both on crops to kill sucking insects, and as seed treatments with the same goal for the developing plant. These insecticides are systemic compounds, meaning that once applied, they travel to all parts of a plant through the vascular […]

(Beyond Pesticides, November 22, 2021) It is the time of the year for backyard bird counts to begin. Birdwatching is the most popular form of amateur science. It takes little to get started. Birds are fun to watch and photogenic. Birdwatching may be practiced alone or in groups. Birdwatching is also a way to participate in science, and you can do it from home. Cornell Lab of Ornithology collaborates with other organizations to gather data collected at feeders and elsewhere. Cornell Lab’s eBird is one of the world’s largest biodiversity-related science projects, with more than 100 million sightings reported annually. eBird and FeederWatch data document bird distribution, abundance, habitat use, and trends. According to Cornell Lab, “eBird data are stored across secure facilities, archived daily, and are freely accessible to anyone. eBird data have been used in hundreds of conservation decisions and peer-reviewed papers, thousands of student projects, and help inform bird research worldwide.” Data submitted to eBird are also used to support conservation measures. If birds aren’t your favorites, all kinds of citizen science programs that ensure that conservation decisions are informed by the best available data, which is a fundamental challenge in the face of rapid global environmental […]