(Beyond Pesticides, July 10, 2024) An article last month in Entomology Today, a publication of the Entomological Society of America, highlights the important findings of a study published earlier this year in the Journal of Insect Science. While there has been debate on whether neonicotinoid (neonic) insecticides or Varroa mites (Varroa destructor) are more detrimental to the survival of bees, evidence suggests that neonicotinoids are not only harmful individually but can increase vulnerability to parasitism from mites in western honey bees (Apis mellifera). The Entomology Today article reads: “Some researchers and organizations have pointed to neonics as directly harming bees. Others have pointed to other issues, like Varroa mite infestation, as more hazardous to honey bee populations.” There is scientific evidence supporting each claim, as both cause stress to bee species that can lead to population decline. The study in the Journal of Science, however, is “the first experimental field demonstration of how neonicotinoid exposure can increase V. destructor populations in honey bees and also demonstrates that colony genetic diversity cannot mitigate the effects of neonicotinoid pesticides.”  As the article states, “The researchers were not looking for impacts on Varroa mites at first. Instead, they were looking to understand how […]

(Beyond Pesticides, July 9, 2024) Last month, California cannabis regulators recalled a pesticide-tainted vape, one of the contaminated products identified in a Los Angeles Times investigation. The report reveals that the California Department of Cannabis Control (DCC) has for months been aware of the presence of dangerous chemicals in legal cannabis sold to the public. Conducted by Los Angeles Times and WeedWeek, a cannabis industry newsletter, the investigation has uncovered alarming levels of the insecticide chlorfenapyr in legal cannabis products sold in state dispensaries. According to an article via the National Institutes of Health, “Although [chlorfenapyr] has been identified as a moderately toxic pesticide by the World Health Organization (WHO), the mortality rate of poisoned patients is extremely high. There is no specific antidote for chlorfenapyr poisoning.” The chemical is associated with adverse liver effects and is toxic to bees, birds, and aquatic organisms. Despite claims that the state’s cannabis is safe and regulated, many popular brands of vapes and pre-rolled joints were found to contain dangerous pesticides at levels exceeding state limits and federal standards for tobacco. This investigation comes on the heels of the discovery of large amounts of illegal Chinese pesticides at cannabis grow operations around the state. […]

(Beyond Pesticides, July 8, 2024) Please submit comments by Wednesday, July 31, 2024. Acephate, an insecticide and member of the highly toxic organophosphate (OP) family, is so toxic that EPA is proposing to ban all uses except the systemic injection into trees. A comment period is open, and EPA is accepting comments through Wednesday, July 31, after extending the earlier July deadline. With this remaining use, EPA is still not recognizing that systemic neonicotinoid pesticides can cause serious environmental harm to the ecosystem through indiscriminate poisoning of organisms. >> Submit a comment on acephate and tell EPA that no pesticide should be allowed to be used if the crop can be produced organically.  EPA proposes to cancel all uses of acephate other than tree injection to eliminate all risks of concern it has identified that exceed its level of concern for dietary/drinking water risk, residential and occupational risks, and risks to non-target organisms. As Beyond Pesticides points out, although the tree injection method does not pose excessive dietary or aggregate health risk and does not pose any untoward occupational or post-application human health risks of concern, there are significant ecological risks posed that the agency has neglected. Rather than assessing the ecological risks of tree […]

(Beyond Pesticides, July 5, 2024) After years of advocacy against corporate interference in global pesticide policy, the United Nations Food & Agriculture Organization (FAO) has ended its “strategic partnership” with petrochemical pesticide and fertilizer trade association CropLife International. This decision, which allows the expiration of a 2020 Letter of Intent (LoI), was announced in a June press release by a coalition of international public interest, environmental, and trade groups. The organizations objected to the partnership from the inception of the agreement and has issued objections, including in 2022 and covered by Daily News. The signatories to the release last month believe that this severing of ties with the chemical industry will contribute to building momentum from frontline communities for “sustainable, resilient and equitable production systems under the agroecological paradigm.” The groups say, however, “We remain concerned about the FAO’s continuing informal engagements with CropLife and call for greater transparency and accountability in this regard.” Beyond Pesticides has urged that models for change, whether advanced by FAO or other international or national institutions, must embrace clear definitions and standards that are certified and enforceable in order to reverse the existential threats to health, biodiversity, and climate from petrochemical pesticides and fertilizers. […]

(Beyond Pesticides, July 3, 2024) In June, the Vermont legislature officially passed H.706 into law – a bill that narrows and reduces the use of neonicotinoid insecticides and neonicotinoid-treated seeds. The legislature came together to override a veto of the bill issued by Governor Phil Scott (R). Gov. Scott said the bill’s language had “the potential to produce severe unintended environmental and economic consequences–—particularly for Vermont’s dairy farmers.” The advocacy in support of the legislation called for a holistic, systems change approach to legislative priorities that considers economic, ecological, public health, and climate resilience. The Vermont legislation builds on New York legislation, which in turn is inspired by Quebec’s “verification of need” prescription model (a.k.a. emergency exemptions) that has proven to dramatically reduce the use of certain neonicotinoids, yet enables the continued use of toxic pesticides and a legacy of pesticide dependency in land management and crop production. Vermont Bill Building on New York The Vermont Bill (See pages 29 to 44 for final text) mirrors the language of New York’s Birds and Bees Protection Act (S. 1856-A and A. 7640) and adopts New York’s language on timing regarding when critical sections go into effect. The Vermont language contains trigger language that […]

(Beyond Pesticides, July 2, 2024) Men’s Mental Health Awareness Month, which took place last month, evokes concern about the growing body of science linking pesticide exposure to neurological effects linked to depression. Recent studies reveal elevated rates of psychiatric disorders, including suicide, among farmers, with problems more common for males.  Through systematic reviews, meta-analyses, surveys and interviews, and blood sampling, these three studies add to the growing body of science linking pesticide exposure to neurological impacts. First, in the Journal of Agromedicine, researchers from Greece and the United Kingdom review eight studies and find a significant positive association between pesticide poisoning and depression in agricultural populations.1 Second, a study in Toxicology shows a link between depression in Brazilian farmers and pesticide exposure, most notably with glyphosate usage.2 Third, the latest study in Environmental Toxicology and Pharmacology focuses on work by researchers from Spain in identifying farmers exposed to chlorpyrifos, mancozeb, and malathion that have higher rates of depressive symptoms and suicide attempts.3  Through a meta-analysis of published research, the authors of the Agromedicine journal article identify pesticide poisoning as a risk factor of depression. With depression affecting more than 264 million individuals worldwide, this is a field of interest with […]

(Beyond Pesticides, July 28, 2024) Most people don’t like bugs, but the fact is that insects form the foundation of human flourishing, both for their ecosystems services, like pollination of food crops, and for their aesthetic joys. But insect populations globally are declining two to four percent a year, with total losses over 20 years of 30-50 percent, according to a new study of the interacting effects of pesticides, climate, and land use changes on insects’ status in the Midwest. Teasing out the relative influence of these stressors has been a major obstacle in determining the causes of the declines and ways to mitigate them. The icon of insect beauty in the U.S. is the monarch butterfly, whose vibrant coloring, elegant form, and spectacular migrations inspire everyone. Beyond Pesticides has covered the distressing decline of these creatures, most recently in the June 24 Daily News. Monarchs prefer milkweed plants, but also visit many other flowers. Milkweed often grows along the margins of fields, so monarchs are widely exposed to pesticides and habitat disturbances associated with agriculture. The new study was published in PLoS One by a team of scientists from the Washington Department of Fish and Wildlife, Michigan State University, […]

(Beyond Pesticides, June 27, 2024) Earlier this month, Public Employees for Environmental Responsibility (PEER) filed a lawsuit against the U.S. Environmental Protection Agency (EPA) on behalf of a group of ranchers and farmers in Texas harmed by biosolids contaminated with per- and polyfluoroalkyl substances (PFAS). The plaintiffs charge that their health and livelihoods were severely damaged due to contaminated biosolids leaching from neighboring properties onto their land. Despite EPA’s responsibility under the Clean Water Act (Section 405(d) and 40 CFR Part 503) to identify toxic pollutants in biosolids and regulate them to protect human health and the environment, the agency has not effectively addressed the dangers posed by PFAS in biosolid fertilizers. EPA’s failure has dramatic impacts on farmers as well as the public, who are eating or drinking PFAS-contaminated crops, dairy milk, beef, or other meat products. The shortcomings of federal regulations underscore the urgent need for a shift in how federal and state agencies approach these issues, prioritizing precaution to prevent future harm. The persistence of these legacy or “forever” chemicals in the environment illustrates the severe consequences of a historically lax regulatory framework in the U.S.  The National Association of State Departments of Agriculture (NASDA) has identified […]

Image: Globetrotter19, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons (Beyond Pesticides, June 26, 2024) The Hungarian city of Törökbálint (featured above) is one of several dozen towns to join the European Pesticide Free Towns Network, an initiative of Pesticide Action Network (PAN) Europe, based on a recent blog post welcoming the city into its Network. With elections coming up in European Union Parliament and EU member state nations across the continent, advocates believe in the importance of proactive actions local governments and towns launch to address the cascading crises of climate change, biodiversity deterioration, and public health fragility. In the U.S., Beyond Pesticides is working with communities nationwide, providing hands-on technical assistance in the adoption of organic land management practices. “In recent years, our municipality has begun to explore the possibility of tackling an increasing number of city management problems with environmentally friendly solutions,” says Sándor Elek, mayor of Törökbálint in a public statement announcing the city’s membership. “We are phasing out chemical treatments in public areas and working on the continuous information and awareness-raising of the public. We are also working to promote the public acceptance of environmentally friendly mosquito control.” In joining the European Pesticide Free Towns Network, each […]

(Beyond Pesticides, June 21, 2024) A recent review of the scientific literature, published in Science of The Total Environment, analyzes multiple species of bees on a molecular level to better understand the poisoning mechanisms that could, as the authors see it, inform chemical risk assessments with more precision. The mechanisms “implicated in the tolerance of bees to specific pesticides, and thus as determinants of insecticide sensitivity, … include metabolic detoxification, insecticide target proteins, the insect cuticle and bee gut microbiota,” the authors write. This review references more than 90 studies performed over the last 30+ years, with most being published in the last 5-10 years, as the understanding and importance of molecular determinants of bee sensitivity has emerged. Pollinators, such as bees, provide crucial ecosystem services by pollinating both wild plants and essential crops. The exposure these insects are subjected to threatens their existence, which occurs through pesticide contamination that can lead to impacts on growth and development or even colony collapse.    “While bees have only been exposed to human-made pesticides over the recent past (last 80 years) they have co-evolved with plants and fungi which produce a range of xenobiotics, including plant allelochemicals and mycotoxins,” the authors state. […]

(Beyond Pesticides, June 18, 2024) As part of its update to the proposed U.S. Environmental Protection Agency (EPA) Endangered Species Act (ESA) Workplan, the agency held a public webinar on June 18, 2024, which provided an overview of the agency’s “Mitigation Menu Website” for “reducing pesticide exposure to nontarget species from agricultural crop uses.” [Check back to see webinar when posted by EPA.] After court decisions forced EPA to develop a strategy to meet its statutory responsibility to protect endangered species from pesticide use, the agency recognized that it is, in its own words, “unable to keep pace” with its legal obligations. Despite this acknowledgement, the agency said it would “provide flexibility to growers to choose mitigations that work best for their situation.” In this spirit, a range of people, including grower groups, gathered earlier in the year for a series of workshops in the Pacific Northwest to discuss possible mitigation measures. According to a report written by commercial beekeeper Steve Ellis (more background), concrete decisions were not reached at the workshops as participants recognized the complexities in crafting pesticide product label restrictions to protect endangered species. Mr. Ellis concluded: “If it’s so complex that it’s impossible, then no one […]

Calls for Holistic Environmental Justice and a Shift Away from Societal Dependence on Petrochemical Pesticides and Fertilizers (Beyond Pesticides, June 18-19, 2024) Juneteenth (June 19) commemorates the date in 1865 when the enslavement of Black Americans ended in the westernmost Confederate state of Texas, over two and a half years after the Emancipation Proclamation of 1863 and the defeat of the Confederacy on April 9, 1865. On June 19, 1865, Union Major General Gordon Granger brought federal troops to Galveston, Texas and finally, and belatedly, implemented the Emancipation Proclamation, which proclaimed on January 1, 1863 freedom from slavery across the nation. Carl Mack, PhD, a historian and former President of the Seattle-King County NAACP, reminds us that there were still 225,000 enslaved Black Americans in Kentucky and Delaware after June 19, 1865 and the end of the Civil War until December 6, 1865 when Georgia became the 27th state to ratify the 13th amendment. “That is the day in which Georgia ratified the 13th amendment,” Dr. Mack goes on to discuss the remaining three former border states on their progress in adopting the 13th amendment. “As it applies to Delaware and Kentucky, Delaware did not ratify the 13th amendment until […]

(Beyond Pesticides, June 14, 2024) The influence of the chemical industry over public policy and regulation, especially in agriculture, is glaringly obvious and has little popular support, yet no one can seem to do anything about it. Numerous analyses have detailed the ways this influence is applied—through lobbying and political donations including dark money; industry experts named to regulatory agency scientific advisory boards; and the massive public relations machines that create and sustain public uncertainty using the tobacco industry playbook revealed by Naomi Oreskes and Erik Conway in their 2010 book Merchants of Doubt. A more insidious tendril of industry influence is explained in U.S. Right to Know’s (USRTK) report, released this month, on pesticide manufacturers’ infiltration of the Entomological Society of America (ESA). The report, “Anatomy of a science meeting: How controversial pesticide research all but vanished from a major conference,” examines the ESA’s 2023 annual meeting—its program, sponsorships, presentations, panelists, poster sessions, meet-and-greets, budget, revenue sources, and other aspects of the event. What is revealed is a systematic and comprehensive industry presence throughout the society and its meeting. A direct consequence is the near-elimination of any scientific presentations addressing the effects of neonicotinoid pesticides on insects, particularly bees. […]

(Beyond Pesticides, June 13, 2024) A study published in Conservation Letters, a journal of the Society for Conservation Biology, exposes critical shortcomings in the U.S. Environmental Protection Agency’s (EPA) ecological risk assessment (ERA) process for modeling the risks that pesticides pose to bees and other pollinators. For the study, “Risk assessments underestimate threat of pesticides to wild bees,” researchers conducted a meta-analysis of toxicity data in EPA’s ECOTOX knowledgebase (ECOTOX), an EPA-hosted, publicly available resource with information on adverse effects of single chemical stressors to certain aquatic and terrestrial species. The meta-analysis found that the agency’s approach, which relies heavily on honey bee data from controlled laboratory studies, drastically underestimates the real-world threats from neonicotinoid insecticides (and likely other pesticides) to native bees and other pollinators. The study “challenges the reliability of surrogate species as predictors when extrapolating pesticide toxicity data to wild pollinators and recommends solutions to address the (a)biotic interactions occurring in nature that make such extrapolations unreliable in the ERA process.” Beyond Pesticides executive director Jay Feldman remarked, “EPA’s ecological risk assessment process is fundamentally flawed and puts thousands of bee species at risk of pesticide-caused population declines and extinctions.” Mr. Feldman continued, “This underscores the urgent […]

(Beyond Pesticides, June 12, 2024) A study of pesticide contaminated algae finds that the disruption of algal communities has a devastating effect on the health of the aquatic food web. The study findings show that contact with pesticides can result in changes to “algal physiology, causing tissue injury, developmental delay, genotoxicity, procreative disruption, and tissue biomagnification” that alters the dominance of algae species in the environment. This in turn “can impact higher trophic levels and have a domino effect on the aquatic food web. It is possible for biodiversity to disappear, reducing ecosystem stability and resistance to environmental alterations,” the authors state. The study, a worldwide literature review conducted by researchers from India, South Korea, and Saudi Arabia, appears in Aquatic Toxicology.  The health of aquatic ecosystems is at risk with indirect effects on nontarget species from pesticides in the environment. This includes impacts on species of fish, invertebrates, microbial communities, and marine mammals. In explaining the importance of extensively studying effects of pesticides, the researchers note, “Different pesticide classes have different chemical structures, which define their modes of action and affect how they interact with both target and nontarget organisms.” Because of this, the range of effects seen from […]

(Beyond Pesticides, June 11, 2024) Published in Science of The Total Environment in May, a comprehensive literature review of population-based studies finds strong linkages between direct and acute pesticide exposure and elevated risk of breast cancer (BC). A majority of the studies analyzed in this review were based on population groups in the United States, but also extends to Australia and three European countries (Greece, France, and Italy). Included in these studies are women who worked in chemical-intensive agricultural settings, directly sprayed pesticides in their at-home gardens, and/or handled pesticide-contaminated clothing. The findings in this literature review underscore organic advocates’ concerns of relying on pesticide substitution models that inevitably impact the health of land stewards, farmers, farmworkers, and the broader public rather than transforming food systems to an organic model that bans the use of toxic petrochemical-based pesticides. The goal of this review was to synthesize existing literature on pesticide exposure and breast cancer to determine the specific pathways and underlying mechanisms that contribute to female participants’ heightened risk. This literature review was published online by researchers at the University of Arizona’s R. Ken Coit College of Pharmacy and Coit Center for Longevity and Neurotherapeutics and the Laboratory of Tumor […]

(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, June 5, 2024) Individuals living near chemical-intensive agricultural environments have heightened risk of Alzheimer’s disease relative to the general population, according to a study published earlier this year in Psychiatry Research. This finding builds on existing peer-reviewed studies that document the relationship between chronic pesticide exposure and elevated risk of neurodegenerative disorders including Alzheimer’s disease, as well as Parkinson’s disease, dementia, multiple sclerosis (MS), and Huntington’s disease. In light of the mountains of scientific evidence, advocates continue to demand for a wholesale transformation of agricultural and land management systems to one based in organic principles in alignment with the U.S. National Organic Program. Study Analysis This study was published online on May 1, 2024 with the full entry to be published in July 2024. The researchers are physicians, health professionals, and professors at the University of Almeria in southern Spain, specifically working in the Health Research Center and the Department of Nursing, Physiotherapy and Medicine. There is also a researcher, Cristofer Ruiz-González, who works at the Torrecárdenas University Hospital also located in Almeria, Spain. Researchers gathered case information from over 40,000 patients between 2000 and 2021 living in demarcated health care districts with high and low levels of […]

(Beyond Pesticides, June 4, 2024) A study published in the most recent edition of the journal Ecotoxicology and Environmental Safety documents for the first time the presence of the herbicide glyphosate in human sperm. The study looked at 128 French men with an average age of 36 years who tested positive for glyphosate in their blood. Seventy-three out of the 128 men were found to also have glyphosate in their seminal plasma. Not only that, the amount of glyphosate in seminal plasma was nearly four times higher than what was detected in the blood.   Methods  The study involved a population of 128 infertile French men from whom seminal and blood plasma samples were collected. The study was conducted at the “Pole Santé Léonard de Vinci” medical center, located centrally near Tours, France. This region is recognized for its urban characteristics as well as being a major agricultural hub, particularly for grain and wine production. The study authors note, “This area reflects the common herbicide exposure in France” and the district ranks third highest in terms of pesticide purchases. While additional qualitative data was collected, only 47 of 128 participants fully completed a questionnaire about their profession, diet (organic or […]

(Beyond Pesticides, May 31, 2024) Among the many promises that have been made by agribusiness to farmers and consumers, the glories of crops genetically engineered (GE) to resist pests stand out. GE tools—genes—were touted as “natural,” and promised to reduce the use of toxic pesticides. The first such plants incorporating DNA or RNA from other organisms hit the market in the 1990s. Today more than 70% of all GE organisms are engineered to tolerate herbicides, and the overwhelming majority of corn, soybean and cotton varieties are engineered to to be toxic to insects. See Beyond Pesticides’ backgrounder on GE here. Despite a dramatic increase in the use of herbicides and the fast development of weed and insect resistance to plant incorporated pesticides, this month the U.S. Department of Agriculture (USDA), the Food and Drug Administration (FDA) and the U.S. Environmental Protection Agency (EPA) jointly released a document entitled “The Coordinated Framework for the Regulation of Biotechnology – Plan for Regulatory Reform under the Coordinated Framework for the Regulation of Biotechnology.” It responds to a 2022 executive order by President Biden to “accelerate biotechnology innovation” and “support the safe use of biotechnology products” by using a “science- and risk-based, predictable, efficient, […]

(Beyond Pesticides, May 28, 2024) Public comments are due May 29, 2024. With 40 percent of all vegetables grown in the U.S. coming from the state of California, the current state level process to define “regenerative agriculture” could have major impact on land management practices that address the current climate, biodiversity, and health crises. That is, according to advocates, if the process, directed by the California Department of Food and Agriculture (CDFA) departs from a history of poorly defined and unenforceable terms like Integrated Pest Management (IPM) and Sustainable Agriculture. Virtually all consumers of food have a stake in the outcome of the definition of “regenerative,” so the current public comment period, which closes tomorrow, May 29, 2024, can help influence the outcome. As Beyond Pesticides has reported previously, the term “regenerative” is now increasingly being advanced as a loosely defined alternative to the organic standard and label, which is transparent, defined, certified, enforced, and subject to public input. The  publication AgFunderNews (AFN) in February published its updated “2024 list of agrifood corporates making regenerative agriculture commitments,” a who’s who of the largest food and agribusiness corporations worldwide. The list includes companies such as ADM, Cargill, Danone, General Mills, Tyson, Unilever, Walmart, and more with commitments […]

(Beyond Pesticides, May 24, 2024) Even allegedly “low-toxicity” pesticides such as flupyradifurone (insecticide), azoxystrobin, and difenoconazole (fungicides) pose adverse health effects to solitary ground-nesting squash bees (Xenoglossa pruinose), according to a study published in Biological Sciences. Fungicide exposure led to less pollen collected per flower, while exposure to flupyradifurone (FPF) produced larger offspring (which make it more challenging for them to fly). Simultaneous exposure to the three pesticides “induced hyperactivity in female squash bees relative to both the control and single pesticide exposure, and reduced the number of emerging offspring per nest compared to individual pesticide treatments.” With United Nations Food and Agriculture Organizations-sponsored World Bee Day earlier this week, now more than ever advocates are calling for the elimination of toxic insecticide classes, such as neonicotinoids and butanolides, and their wholesale replacement with organic land management principles. This study was written by Sabrina Rondeau, PhD, postdoctoral Fellow in the Department of Biology at the University of Ottawa, and Nigel E. Raine, PhD, professor at University of Guelph’s School of Environmental Science. Published on March 20, 2024, the researchers delve into the individual and co-exposure impacts of two fungicides and one insecticide, which is important, given the documented synergistic effects […]

(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 […]