(Beyond Pesticides, November 16, 2022) Putting up with moderate pest levels can attract and maintain predators and parasitoids that provide important biological control services throughout the landscape, according to research recently published in Environmental Entomology. While scale insects can be a problem in urban areas, dropping sticky ‘honeydew’ on cars and structures, they also play a critical role in maintaining native populations of pest predators. Scientists at NC State University (NCSU) set out to understand just how important these pest populations are at maintaining their own natural enemies. To do so, researchers worked through a series of three hypotheses on the connection between urban trees, scale insects, and pest predators. Focus was first placed on investigating different oak species and comparing the number of predators between trees infested and not infested with scale. Twigs from willow oaks, sawtooth oaks, and overcup oaks were collected from scale infested and scale uninfested trees on the NCSU campus over the course of spring, and counted for their scale abundance. Then, through the summer, researchers used a sampling tool that effectively shook insects out of the tree and into a funnel collection. Unsurprisingly, scale infested oaks contain more scale insects. But these trees also […]

(Beyond Pesticides, November 15, 2022) Spraying a flowering plant with synthetic fertilizers makes it less attractive to bumblebees, according to research published this month in PNAS Nexus.  “A big issue is thus—agrochemical application can distort floral cues and modify behaviour in pollinators like bees,” said study author Ellard Hunting, PhD, of the University of Bristol, UK. The findings underscore the limited understanding that proponents of chemical agriculture have for the complex processes that food production relies upon and reinforce calls for a broad scale transition to regenerative, organic farming practices. Scientists began with the knowledge that spray applications of various agrichemicals affect the visitation patterns of bumblebees and other pollinators through a range of different processes. Past research finds that notorious bee-killing neonicotinoid insecticides not only kill bees outright, but also result in a range of complex damage, including their ability to impede bees’ olfactory senses and adversely affect their vision and flying ability. Other chemicals like glyphosate weaken bees’ ability to distinguish between colors.   A growing area of research is investigating the ways in which pollinators use static electric fields surrounding flowers to find food sources. A 2013 study found that bumblebees use floral electrical fields to discriminate […]

(Beyond Pesticides, November 14, 2022) Glyphosate weed killers induce antibiotic resistance in deadly hospital-acquired bacteria, according to a new study published late last month in the journal Scientific Reports. This is the latest finding connecting commonly used herbicides to the rise of antibiotic resistant bacteria. To put this finding in context, antibiotic resistance is rising to dangerously high levels in all parts of the world, according to the World Health Organization. In the May 1, 2022, issue of the Bulletin of the World Health Organization, Samira Choudhury, PhD, et al. writes, “Often referred to as the silent pandemic, antimicrobial resistance claims the lives of over 700,000 people annually.” The authors continue, “A study suggests that if no actions are taken, antimicrobial resistance will cause 10 million deaths per year by 2050 and an economic impact of over 100 trillion United States dollars.” Tell EPA and Congress that antibiotic pesticides in agriculture, lawns, and landscapes must be eliminated. Use of antibiotics in animal agriculture has long been recognized as a contributor to widespread antibiotic resistance. More recently, recognition of the contribution of antibiotics in plant agriculture has led to pressure to eliminate agricultural uses of antibiotics used in medicine. However, two facts […]

(Beyond Pesticides, November 11, 2022) A paper published in Trends in Ecology & Evolution in late October sounds an unnerving alarm about the globally ubiquitous use of herbicides and the ecological destruction being caused. It asserts that widespread environmental contamination with these herbicide compounds is influencing soil, plant, and animal microbiomes in ways that are not only not well understood, but also, can have significant impacts on the functioning of organisms and their ecosystems — with evolutionary implications. Impacts of herbicides on microbiota in soils include, for example, those on nutrient cycling, and altered organism and plant performance, which can affect pollination and animal consumption of plants. This research reinforces what Beyond Pesticides wrote in covering a 2021 study: “The popular herbicide glyphosate negatively affects microbial communities, indirectly influencing plant, animal, and human health. Exposure to sublethal concentrations of glyphosate shifts microbial community composition, destroying beneficial microorganisms while preserving pathogenic organisms.” Herbicides are a category of pesticide used to control weeds in agriculture and commercial forests, on managed landscapes, byways, gardens, and lawns, and directly on surface waters to control aquatic weeds. They are designed to kill “target” plant species considered undesirable in any of those circumstances. Herbicide use has exploded […]

(Beyond Pesticides, November 9, 2022) A team of Dutch researchers has developed an artificial predator dubbed the RobotFalcon that can quickly and successfully scare bird flocks away from fields, providing a new practical, ethical tool to deter bird strikes near airports. Although it sounds like a conspiracy theory, in the skies above Workum, The Netherlands, for a period of time, some of the birds were not real. Current data indicate there are over 17,000 wildlife strikes to aircraft each year in the U.S., costing an estimated $500 million in economic losses, yet these problems are ongoing despite the U.S. Department of Agriculture’s Wildlife Services program killing hundreds of thousands of birds in and around airports each year through a range of lethal means, including the use of guns and pesticides. As a result, new management approaches that focus on effective, nonlethal alternatives to the use of toxic chemicals are urgently needed. Scientists began their research with the understanding that most bird deterrent methods “suffer from some degree of habituation: after repeated exposure, birds respond less.”  While habitation can be reduced through natural threats, the authors note that approaches like falconry are lethal and can be prohibitively expensive and difficult to […]

(Beyond Pesticides, November 8, 2022) Glyphosate weed killers induce antibiotic resistance in deadly hospital-acquired bacteria, according to a new study published late last month in the journal Scientific Reports. This is the latest finding connecting commonly used herbicides to the rise of antibiotic resistant bacteria, with prior research showing glyphosate, 2,4-D, and dicamba able to create resistance in Salmonella and E. coli. While federal regulatory agencies continue ignore the role of pesticides in the development of antibiotic resistance, it is critical for states and localities to take action to protect their most vulnerable both from toxic exposure to these herbicides and the multitude of indirect effects caused by their use. This is all happening as antibiotic resistance is rising to dangerously high levels in all parts of the world, according to the World Health Organization. In the May 1, 2022 issues of the Bulletin of the World Health Organization, Samira Choudhury, PhD, et al. writes, “Often referred to as the silent pandemic, antimicrobial resistance claims the lives of over 700,000 people annually.” The authors continue, “A study suggests that if no actions are taken, antimicrobial resistance will cause 10 million deaths per year by 2050 and an economic impact of […]

(Beyond Pesticides, November 7, 2022) The Maine Congressional delegation — Senators Collins (R) and Angus King (I), and Representatives Chellie Pingree (D) and Jared Golden (D), along with New Hampshire Senator Jeanne Shaheen (D) — have  introduced a bipartisan bill — the Relief for Farmers Hit with PFAS Act — to help farmers who have been adversely affected by the scourge of PFAS (perfluoroalkyl and polyfluoroalkyl substances) chemicals. The bills are the identical S. 5070 and H.R. 9186, both titled “Relief for Farmers Hit with PFAS Act.” Tell your U.S. Senators and Representative to cosponsor the Relief for Farmers Hit with PFAS Act. If they are already cosponsors, thank them. Tell EPA to stop the spread of legacy chemicals. PFAS chemicals, also known as “forever chemicals,” are legacy contaminants or those whose historical use, including many decades ago in some instances, has led to their toxic persistence in the environment and in organisms. PFAS chemicals are not the only legacy contaminants. Others include wood preservatives, DDT, dioxins, and the termiticide chlordane. Unfortunately, some of these continue to be added to the environment, sometimes inadvertently, but also intentionally, particularly through pesticide use. As indicated by the title of these bills, farmers […]

(Beyond Pesticides, November 4, 2022) Rural populations in the U.S., a new study finds, are particularly at risk for agriculture-related exposures associated with respiratory diseases and other kinds of airway inflammation. The exposures include those to pesticides, livestock facilities, smoke from biomass burning, agricultural dust, and endotoxin. The study paper also looked at potential protective roles for dietary DHA, and for raw milk consumption (early in life). Beyond Pesticides has regularly covered the relationships between pesticide exposures and asthma (including the outsized risks for children), COPD (chronic, obstructive pulmonary disease), and other respiratory anomalies. See our webpage on Pesticide-Induced Diseases: Asthma/Respiratory Effects for more information. Published in Immunology and Allergy Clinics of North America [please note: this research paper is behind a paywall], and authored by a team from the Division of Allergy and Immunology at the University of Nebraska Medical Center in Omaha, the study used data from the past five years plus literature reviews of research on asthma and respiratory issues in rural populations. The team notes that multiple studies have suggested that “farming-related exposures as an adult increase the risk of asthma or asthma-like symptoms development,” adding that agricultural workers are exposed to “a complex working environment […]

(Beyond Pesticides, November 2, 2022) Inert ingredients called “amines” that are added to pesticides in attempts to reduce drift and volatility are themselves highly volatile and may represent a significant source of air pollution, according to research recently published in Environmental Science and Technology. The findings and implications for public health are unexpected, as research until now has not considered herbicide use as a source of amine emissions. “Researchers have looked at industrial applications, animal operations and environmental sources of amines, but no one has looked at herbicides at all, as far as we have seen, despite the fact that large quantities of herbicide-amine mixtures are being sprayed onto crops across the country,” said study author Kimberly Parker, PhD, of Washington University in St Louis (WUSL). “We were really surprised to see that this source had been overlooked.” Amines are chemical compounds derived from ammonia and often added to herbicide formulations for glyphosate, dicamba, and 2,4-D products to increase solubility and reduce volatilization. In theory, amines reduce volatilization by forming herbicide-amine salts which lock the herbicide vapors in place. However, the team of scientists conducting this research had previously found evidence that even new forms of dicamba billed by the […]

(Beyond Pesticides, November 1, 2022) Honey bees exposed to a combination of multiple pesticides suffer a reduced lifespan and experience adverse changes to their gut microbiome, increasing susceptibility to pathogens and disease. This finding comes from a study published recently in Science of the Total Environment, which examines the interactions between the insecticides flupyradifurone and sulfoxaflor and the fungicide azoxystrobin on honey bee health. Both insecticides studied are considered substitutes for notorious bee-killing neonicotinoid insecticides, which move through the vascular system of the plant and contaminates its pollen, nectar, and guttation droplets. As declines in pollinator and insect life continue throughout the world, it is critical not only to understand and restrict widely used chemicals like neonicotinoids, but also the regrettable and deleterious substitutions the agrichemical industry has developed to replace them. As the present study reveals, pesticide risk assessments do not inadequately capture the range of harm that can result when pesticides are combined, necessitating a shift toward safer, alternative, and regenerative organic farming systems that do not use these dangerous chemicals. To better understand the impacts of combined pesticide exposure on honey bees, researchers employed three colonies located in Germany’s Martin Luther University that were inspected and free […]

(Beyond Pesticides, October 31, 2022) Just as the Environmental Protection Agency (EPA) issued a request for information on improving indoor air quality, it approved 32 varieties of a new “air sanitizer” to kill bacteria and viruses in the air. These products contain 14% dipropylene glycol and 86% secret (“other”) ingredients, including fragrances. Tell EPA that clean air, NOT “sanitized” air, protects against disease. Through its approval of such sanitizers, EPA promotes the false reasoning that a chemical that kills a pathogen necessarily protects health. Although disinfectants and sanitizers kill viruses, bacteria, and other microbes, they can also negatively affect the immune system, thus reducing resistance to disease. People who have a preexisting condition or are of advanced age, who may have a weakened immune or respiratory system, are more vulnerable to the effects of the virus. Children are at elevated risk from exposure. When managing viral and bacterial infections, chemicals that exacerbate the risk to vulnerable individuals are of serious concern. EPA opened a 60-day public comment period “to solicit information and recommendations from a broad array of individuals and organizations with knowledge and expertise relating to the built environment and health, indoor air quality, epidemiology, disease transmission, social sciences […]

(Beyond Pesticides, October 28, 2022) The Maine Congressional delegation — Senators Collins (R) and Angus King (I), and Representatives Chellie Pingree (D) and Jared Golden (D) — along with New Hampshire Senator Jeanne Shaheen (D), have introduced a bipartisan and bicameral bill — the Relief for Farmers Hit with PFAS Act — to help farmers who have been impacted by the scourge of PFAS (perfluoroalkyl and polyfluoroalkyl substances) chemicals. (The Senate version of the bill is available; the House version should be soon.) PFAS contamination has, as Beyond Pesticides documented in two Daily News Blog articles (here and here), become a huge, life-altering problem for agricultural producers in Maine and many other states. An early 2022 Safer States analysis of state-level legislation on PFAS demonstrated the extent of the problem via the response: more than 32 states have begun to act on the issue. Beyond Pesticides has covered the presence of PFAS in pesticides and pesticide containers, and in so-called “biosludge” or “biosolids”— realities that only reinforce the call for a rapid transition off of chemical-dependent agriculture and to regenerative organic agricultural practices that do not carry the enormous health and environmental risks of pesticide products and contaminated fertilizers. There […]

(Beyond Pesticides, October 26, 2022) Inflammatory bowel disease (IBD) may be exacerbated by exposure to the herbicide propyzamide, used in both agriculture and on ornamental lawns and landscapes, according to research published in the journal Nature this month. As the rate of autoimmune diseases continues to increase rapidly in the U.S. and the world, it is critical for scientists to better understand the etiology behind these diseases and the environmental factors contributing to their development. Recent data show that the number of people living with Crohn’s disease and ulcerative colitis, common types of IBD, have risen annually by 3.4% and 2.8% respectively, between just the years 2001 to 2018. “As we learn more about the environmental factors that might contribute to disease, we can develop state- and national-level strategies to limit exposures,” said study coauthor Francisco Quintana, PhD. “Some chemicals don’t seem to be toxic when tested under basic conditions, but we do not yet know about the effect of chronic, low-level exposures over decades, or early-on in development.” Researchers did not begin their study investigating propyzamide. Initial intent focused on better understanding environmental factors that may be contributing to IBD. Using a range of different models, scientists cross-referenced data […]

(Beyond Pesticides, October 25, 2022) Fungicide use harms soil and jeopardizes crop yields by reducing the prevalence of arbuscular mycorrhizal fungi (AMF), according to recent research published in Nature Ecology and Evolution. AMF are important fungi that form symbiotic relationships with plants in both natural and cropland soils, and their presence helps facilitate nutrient uptake, particularly for phosphorus. With global phosphorus supplies dwindling and persistent pollution problems from the nutrient, practices that enhance the presence of AMF in cropland soils will be critical for the future of farming worldwide. Scientists set out to better understand the conditions that promote AMF’s ability to transfer phosphorus (P) to plants by considering climate and soil characteristics, soil type, and agricultural practices. To start, samples were taken from 150 cropland soils and 60 natural grassland soils in various countries throughout Europe. Environmental data and soil samples were collected for each location, as were past management practices for the cropland sites, which generally all grew cereal grains like wheat, oats or barley. To understand the P transfer rates of AMF hyphae, scientists grew the plant Plantago lanceolata in the collected soils in a greenhouse, utilizing the radioisotope 33P in order to achieve a real-time view […]

(Beyond Pesticides, October 24, 2022) We need prevention of the causes of breast cancer, not just awareness. In 1985, Imperial Chemical Industries and the American Cancer Society declared October “Breast Cancer Awareness Month” as part of a campaign to promote mammograms for the early detection of breast cancer. Unfortunately, most of us are all too aware of breast cancer. Detection and treatment of cancers do not solve the problem. Tell EPA to evaluate and ban endocrine-disrupting pesticides, and make organic food production and land management the standard that legally establishes toxic pesticide use as “unreasonable.”  Next to skin cancer, breast cancer is the most common cancer among women, causing the second most cancer-related deaths in the United States. Genetic factors only play a minor role in breast cancer incidence, while exposure to external environmental factors such as pesticides plays a more notable role. For breast cancer, one in eight women will receive a diagnosis, and genetics can only account for five to ten percent of cases. Therefore, it is essential to understand how environmental exposure to chemicals like pesticides can drive breast cancer development. Several studies and reports, including U.S. Environmental Protection Agency (EPA) data, identify hundreds of chemicals as influential factors associated with breast cancer […]

(Beyond Pesticides, October 19, 2022) Pet flea collars containing the insecticide tetrachlorvinphos (TCVP) are set to be banned by the U.S. Environmental Protection Agency, according to the agency’s long overdue response to a petition from the Natural Resources Defense Council (NRDC). The highly toxic pesticide has not been used on crops since 1987, yet was permitted for decades in flea collars where children could be intimately exposed to the chemical while petting and playing with the family pet. The decade-long process of bringing use of these products to an end exposes the failures of the U.S. pesticide regulatory system, and how EPA’s weak and flawed decisions that infect the marketplace with severe consequences. One may ask: How many veterinarians prescribed these dangerous flea collars to pet owners, assuming that EPA has properly assessed exposure risks to their human owners? Advocates concerned about EPA’s ongoing propensity to defer to the pesticide industry are urging an overhaul of the regulatory process and a reorientation toward toxic pesticide elimination and the adoption of organic in order to address serious health and environmental threats. NRDC originally filed its petition to ban all uses of TCVP in 2009. The petition noted that the agency completely […]

(Beyond Pesticides, October 18, 2022) Washington, D.C. Attorney General (AG) Karl Racine is suing chemical manufacturer Velsicol to recover damages caused by the company’s production and promotion of the insecticide chlordane despite full knowledge of the extreme hazards posed by the pesticide. Over 30 years after it was banned, chlordane is still contaminating homes, schools, yards, private wells and waterways throughout the United States, including DC’s Anacostia and Potomac rivers. While the District’s focus on restitution and remediation for this highly hazardous, long-lived insecticide is laudable, many advocates say the city is not doing enough to stop pesticide contamination currently entering the city’s waterways. Despite passage of a strong pesticide bill in 2016 limiting toxic pesticide use on schools, child occupied facilities, and within 75ft of a waterbody, D.C. Department of Energy and Environment (DDOE) director Tommy Wells has failed to update regulations and enforce the law. Chlordane is an organochlorine insecticide, of the same class as DDT, and was likewise discussed extensively in Rachel Carson’s Silent Spring. Like other organochlorines, it is bioaccumulative, increasing contamination levels as it works its way up the food chain, and highly persistent, remaining in the environment for decades and perhaps even centuries, with breakdown […]

(Beyond Pesticides, October 17, 2022)  A recent report, Exposed and At Risk: Opportunities to Strengthen Enforcement of Pesticide Regulations for Farmworker Safety, by the Center for Agriculture and Food Systems at Vermont Law and Graduate School, in partnership with the nonprofit advocacy group, Farmworker Justice, again highlights the systemic racism of our country’s pesticide policies. Our nation depends on farmworkers, declared “essential workers” during the COVID-19 pandemic to ensure sustenance for the nation and world. Yet the occupational exposure to toxic pesticides by farmworkers is discounted by the Environmental Protection Agency (EPA), while study after study documents the disproportionate level of illness among farmworkers. While we are encouraged to see the formation of EPA’s new Office of Environmental Justice and Civil Rights, the agency has a historical bias against preventive action to ensure the protection of those disproportionately poisoned by toxic chemicals. While critically important to clean up contaminated communities, EPA must stop the flow of toxic pesticides at the front end because of the disproportionate poisoning effects of use, handling, transportation, and disposal. We live in an age of practices and products that make toxic pesticides unnecessary and their use unconscionable. Yet, EPA insists on the acceptability of harm […]

(Beyond Pesticides. October 14, 2022) A team of researchers has taken on the challenge of integrating data from multiple and disparate sources in order to devise tools with which scientists can evaluate pollinator pesticide exposures and impacts more effectively at “landscape scale” (and at real-life exposure levels). Accessing data that are useful and relevant at this landscape level has been a significant problem for researchers and conservationists. This “zoomed out” view is critical because pollinators are highly mobile across thousands of meters of foraging area. A functional understanding of the risks pollinators encounter in their territories requires integrated data at this level, as opposed to the large geographic areas across which pesticide use is typically tracked. The team’s paper on their work — Putting pesticides on the map for pollinator research and conservation — was published in Nature.com in mid-September. Pollinators are essential to healthy ecosystems and to a third of human food sources, as well as to plants used for commercial seed production. As the authors note, nearly 90% of flowering plant species benefit from the services of pollinators that help plants set their seeds and produce flowers and fruit (this last term includes foods widely considered to be “vegetables,” […]

(Beyond Pesticides, October 13, 2022) Offspring’s exposure to glyphosate-based herbicides (GBHs) preceding and proceeding birth (perinatal) induces liver damage. A study published in Toxicology and Applied Pharmacology demonstrates the role excess iron in the body from GBH exposure plays in liver toxicity via an increased uptake of calcium and oxidative stress. The liver, the largest solid organ in the human body, is an essential part of the digestive system, responsible for blood detoxification, nutrient metabolization, and immune function regulation. The rates of chronic liver diseases are increasing, representing the second leading cause of mortality among all digestive diseases in the U.S. Because GBHs are ubiquitous in many herbicide products, studies report that these toxic chemical compounds are detectable in infants, children, and pregnant women. Children are particularly vulnerable to the impacts of pesticide exposure as their developing bodies cannot adequately combat exposure effects. Although studies show how chemical exposures affect overall human health, more research is now questioning how these toxic chemicals influence digestive health and the subsequent occurrence of diseases. Therefore, it is essential to understand how harmful chemical exposure impacts health and well-being during critical developmental periods. The study notes, “[T]he possible role played by perinatal exposure to GBH […]

(Beyond Pesticides, October 12, 2022) The U.S. Environmental Protection Agency (EPA) is asking a federal court for permission to go back and reconsider its decision to reapprove use of the highly hazardous herbicide paraquat, according to a filing submitted by the agency late last month. Advocates see the move as encouraging, since meaningful EPA action on this Parkinson’s-linked chemical is long overdue. Last year, advocates condemned the Biden Administration for its reapproval of the weed killer with fewer protections than those proposed by the Trump Administration, marking a deeply concerning sign for pesticide reform campaigners looking to the administration for positive change. EPA’s request is the result of a legal challenge brought by the California Rural Legal Assistance Foundation, Earthjustice, Farmworker Association of Florida, Pesticide Action Network, and the Michael J. Fox Foundation for Parkinson’s Research.  The groups argued that the agency’s decision to reregister paraquat was not legal based on substantial evidence that the chemical poses unreasonable risks to human health and the environment. While EPA made its initial decision to reapprove paraquat in the late days of the Trump Administration, it was under the Biden Administration that the agency reversed a proposed ban on aerial use, permitting broad-scale […]

(Beyond Pesticides, October 11, 2022) Without continuously improving organic standards and certification, advocates maintain that there is no holistic way to combat the existential crises associated with petroleum-based pesticides and fertilizers—the multiple and growing health threats, biodiversity collapse, and the climate emergency. Have you been confused at the egg case in your grocery store where egg carton labels proclaim “cage-free,” “free-range,” and “pasture raised” organic eggs? The U.S. Department of Agriculture (USDA) is accepting comments on proposed regulations to protect the welfare of livestock and poultry on organic farms. The Organic Livestock and Poultry Standard (OLPS) is a slightly revised version of the Organic Livestock and Poultry Practices (OLPP) rule, which was promulgated after many delays in January 2017, then withdrew the rule before it became effective. USDA acknowledges that a failure to act on OLPS undermines the organic market, saying “a market failure exists in the organic label,” and the intent of new standard is to “clarify and ensure consistent application of the USDA organic standards.” The inconsistent application of organic standards by certifiers has resulted in a plethora of add-on labels that ensure that organic livestock and poultry production meet the expectations of organic consumers. However, the proposed OLPS […]

(Beyond Pesticides, October 10, 2022) The National Museum of the American Indian, a part of the Smithsonian Institution, sits on the National Mall in Washington, DC and as a part of its history program is commemorating Indigenous Peoples’ Day on October 10. This year, President Biden, while commemorating Columbus Day, issued the second Presidential Proclamation on Indigenous Peoples’ Day. The National Museum of the American Indian marks the day with an effort to teach the true history of the United States. This history is introduced on the Museum’s website with the following: Unlearning Columbus Day Myths: Celebrating Indigenous Peoples’ Day “Many students learn the phrase, “In 1492, Columbus sailed the ocean blue”. But Columbus was not the first foreign explorer to land in the Americas. Neither he nor those that came before him discovered America—because Indigenous Peoples have populated the Western Hemisphere for tens of thousands of years. European contact resulted in devastating loss of life, disruption of tradition, and enormous loss of lands for Indigenous Peoples in the Americas. It is estimated that in the 130 years following first contact, Native America lost 95 percent of its population.” “Indigenous Peoples of the Western Hemisphere immediately experienced enslavement and theft of resources […]