Archive for the 'neonicotinoids' Category
23
Aug
Image: Art Page submission from Sara Grantham, “Sunflower Pollinators” (Beyond Pesticides, August 23, 2024) A study in Science of The Total Environment calculates and compares pesticide risk in 594 wild bee species associated with crops in North America. Current pesticide risk assessments that analyze effects on bees primarily focus on a limited subset of species and do not provide comprehensive protection of all wild bees. âSpecies commonly proposed as models for pesticide risk assessments may not accurately represent risk for those bee species facing the highest potential risk in agricultural contexts,â the authors postulate. The researchers continue, âThis study presents a novel approach to characterize and compare the relative potential pesticide risk among wild bee species of their association with crops in North America using suites of intrinsic bee traits to quantify species’ vulnerability and extrinsic factors based on the toxic load of crops for bees and the strength of each species’ association with those crops.â In considering multiple factors that vary by species and determining potential harm to each from pesticide exposure, this study highlights the inadequacies of the current risk assessment process used by the U.S. Environmental Protection Agency (EPA).   The system for risk assessment for pesticides that […]
Posted in Beneficials, Environmental Protection Agency (EPA), neonicotinoids, organophosphate, Pesticide Regulation, Pollinators, pyrethroids, Synthetic Pyrethroid | No Comments »
17
Jul
(Beyond Pesticides, July 17, 2024) National election results in the United Kingdom (UK) and France in recent weeks have shocked the world amidst concerns of a rising tide of right-wing authoritarianism on the eve of European Parliament election resultsâtrending toward what was initially perceived as a conservative majority earlier in June. With new leadership in some of the biggest economies and policy leaders across the Atlantic, environmental and health advocates are hopeful that this will signal a new momentum to advance the mission of transitioning to a fully organic land management and food system that replaces the status quo reliant on toxic petrochemical-based pesticides and fertilizers that exacerbate the climate crisis, biodiversity collapse, and public health fragility. Citizens of the United Kingdom overwhelmingly voted for the center-left Labour Party, which won an unprecedented margin of 291 seats, winning 412 seats out of the 650 total seats up for grabs. The Conservative Party won just 121 seats, a clear rejection of their nearly fifteen-year leadership position in UK politics. UK-based advocates welcome the news given the Labour Party platform to âban neonicotinoid pesticides imidacloprid, clothianidin, and thiamethoxam due to their impact on bees,â according to reporting by Politico. Neonicotinoids have long […]
Posted in Alternatives/Organics, International, Lawns/Landscapes, neonicotinoids, Pesticide Regulation, Uncategorized | No Comments »
03
Jul
(Beyond Pesticides, July 3, 2024) In June, the Vermont legislature officially passed H.706 into law â 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 billâs language had âthe potential to produce severe unintended environmental and economic consequencesââparticularly for Vermontâs dairy farmers.â 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 Quebecâs âverification of needâ 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 Yorkâs Birds and Bees Protection Act (S. 1856-A and A. 7640) and adopts New Yorkâs language on timing regarding when critical sections go into effect. The Vermont language contains trigger language that […]
Posted in Biodiversity, Canada, diamides, neonicotinoids, New York, Quebec, Uncategorized, Vermont | No Comments »
28
Jun
(Beyond Pesticides, July 28, 2024) Most people donât 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 insectsâ 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, […]
Posted in Biodiversity, Environmental Protection Agency (EPA), Food and Drug Administration (FDA), neonicotinoids, Pollinators, Uncategorized | 1 Comment »
24
Jun
(Beyond Pesticides, June 24, 2024) National Pollinator Week ended last week, but the crisis associated with pollinator decline and biodiversity collapse continues. If there were not enough data to prove that regulators are woefully behind the curve in protecting pollinators, yet another study was published during Pollinator Week that reminded regulators, elected officials, farmers, gardeners, all eaters, and lovers of nature that federal, state, and local environmental laws in place have been an abject and unconscionable failure in protecting the biodiversity that supports all life. The study, âInsecticides, more than herbicides, land use, and climate, are associated with declines in butterfly species richness and abundance in the American Midwest,â published in PLOS ONE, cries out as a further warning that the U.S. Environmental Protection Agencyâs (EPA) âmitigation measures,â which tinker with limited pesticide restrictions, represent a catastrophic disregard for the scientifically documented facts, according to environmental advocates. Daily News will cover this study in more detail in a later piece, however, the abstract of the journal piece is worth reprinting here in reflecting on Pollinator Week: âMounting evidence shows overall insect abundances are in decline globally. Habitat loss, climate change, and pesticides have all been implicated, but their relative effects […]
Posted in Alternatives/Organics, Biodiversity, Children, Environmental Protection Agency (EPA), neonicotinoids, Pollinators, Uncategorized | No Comments »
14
Jun
(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 appliedâthrough 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 Knowâs (USRTK) report, released this month, on pesticide manufacturersâ infiltration of the Entomological Society of America (ESA). The report, âAnatomy of a science meeting: How controversial pesticide research all but vanished from a major conference,â examines the ESAâs 2023 annual meetingâits 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. […]
Posted in Agriculture, BASF, Bayer, Chem-China, Corteva, Dow Chemical, DuPont, Environmental Protection Agency (EPA), FMC, neonicotinoids, Pollinators, Sulfoxaflor, Syngenta, Uncategorized | 1 Comment »
13
Jun
(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 âchallenges 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.â 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, âThis underscores the urgent […]
Posted in Alternatives/Organics, Biodiversity, Drift, Ecosystem Services, Environmental Protection Agency (EPA), Habitat Protection, Increased Vulnerability to Diseases from Chemical Exposure, neonicotinoids, Parks for a Sustainable Future, Pesticide Mixtures, Pesticide Regulation, Pollinators, synergistic effects | No Comments »
24
May
(Beyond Pesticides, May 24, 2024) Even allegedly âlow-toxicityâ 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 âinduced 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.â 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 Guelphâs 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 […]
Posted in Azoxystrobin, Chemical Mixtures, difenoconazole, flupyradifurone, Fungicides, neonicotinoids, Pollinators, Uncategorized | No Comments »
11
Apr
(Beyond Pesticides, April 11, 2024) Scientists are moving forward in testing an agroecological method of âpush-pullâ pest management (reducing the attractiveness of the target organism and luring pest insects towards a trap) to fight the Asian citrus psyllid (ACP) in Florida orange groves, as it spreads a plant disease known as the pathogenic bacteria huanglongbing (HLB), also known as citrus greening, which is deadly to citrus trees. The disease is spread by the pathogenic bacteria Candidatus Liberibacter asiaticus (CLas). Â The chemical-intensive, or conventional, citrus industry is under intense pressure to find alternatives, as synthetic antibiotic use for this purpose has been successfully challenged in court. ACP is the carrier, or vector, for HLB, spreading it through the citrus groves and killing the trees. The chemical-intensive industry has focused on using antibiotics, which the environmental and public health community has rejected because of serious medical concerns associated with life-threatening bacterial resistance to antibiotics used to protect humans. A federal district court decision in December 2023 found illegal the U.S. Environmental Protection Agencyâs (EPA) decision to register the antibiotic streptomycin in Florida citrus without adequate review of its impact on endangered species. The streptomycin lawsuit, filed in 2021 by a coalition of […]
Posted in Agriculture, Aldicarb, Alternatives/Organics, Antibiotic, Antibiotic Resistance, Aphids, Biological Control, California, Chlorpyrifos, citrus greening--Huanglongbing (HLB), Ecosystem Services, Endocrine Disruption, Environmental Protection Agency (EPA), Florida, Herbicides, Imidacloprid, Integrated and Organic Pest Management, IQ Loss, Learning Disabilities, Liver Damage, National Organic Standards Board/National Organic Program, neonicotinoids, NOSB National Organic Standards Board, Organic Foods Production Act OFPA, Pests, Reproductive Health, streptomycin, Thyroid Disease, Uncategorized, Uncle Matt's Organic, US Department of Agriculture (USDA) | No Comments »
08
Mar
(Beyond Pesticides, March 8, 2024) A major problem has vexed pesticide regulators and researchers for decades: Humans and other organisms almost always have multiple pesticides in their bodies, but techniques for assessing their combined effects, or cumulative body burden from multiple chemical classes are not typically available. A new study from Chinese and British researchers provides the first combined assessment of multiple classes of pesticides in human blood. The authors believe they are the first to develop a way to quantify multiple types of pesticides in human serum (clear liquid part of blood) as opposed to urine or from other sample collection methods. This is a tool that authors say is a more accurate way of assessing the real world exposure and ultimately the adverse impact of pesticide use on human health. The researchers had a small sample of 31 men and 34 pregnant women in Wuxi, China. They chose 73 pesticides and a few of their breakdown products to identify from three categories: fungicides, neonicotinoid insecticides, and triazine herbicides. Their testing protocol confirms their expectation that foodâprimarily produceâis the major source of pesticide exposures. This result reinforces Beyond Pesticidesâ mission of supporting the shift in agriculture to pesticide-free methods […]
Posted in Atrazine, Endocrine Disruption, Environmental Protection Agency (EPA), Fungicides, neonicotinoids, simazine, Triazines, Uncategorized, World Health Organization | No Comments »
25
Jan
(Beyond Pesticides, January 25, 2024) Legislative efforts to curtail some life-threatening pesticides associated with birds and bees (and other pollinators) decline were weakened in New York State at the end of December 2023 as the governor negotiated and stripped elements of a bill relating to agriculture that had passed the legislatureâagain illustrating the grip of the agrichemical industry on public policy intended to begin to address the crisis in ecosystem collapse. (See âStudy Cites Insect Extinction and Ecological Collapse.â) In passing the Birds and Bees Protection Act, New York joined New Jersey, Nevada, and Maine in banning most nonagricultural uses of neonicotinoid (neonic) insecticides, but, in last-minute changes to avoid the governorâs veto, failed to phase out corn, soybean, and wheat seeds coated with these chemicals. [Pointing to an exemption in federal law that has been challenged by advocates, the U.S. Environmental Protection Agency (EPA) does not regulate treated or coated seeds as pesticides despite their toxic pesticidal properties.] In New York State, the governor can, in consultation with the leadership of the legislative branch, negotiate language changes (called Chapter Amendments)Â in legislature-passed legislation (originally enacted) before deciding to sign it into law or can simply choose to veto the legislation. […]
Posted in acetamiprid, Agriculture, Alternatives/Organics, Birds, Clothianidin, dinotefuron, Disease/Health Effects, Drinking Water, Ecosystem Services, Emergency Exemption, Environmental Protection Agency (EPA), Imidacloprid, Integrated and Organic Pest Management, Lawns/Landscapes, Maine, Minnesota, neonicotinoids, Nevada, New Jersey, New York, Pesticide Efficacy, Pesticide Regulation, Pollinators, Seeds, Thiamethoxam, Uncategorized | 2 Comments »
16
Jan
(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 pesticideâs 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 pesticideâs 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 […]
Posted in Agriculture, Environmental Protection Agency (EPA), neonicotinoids, Resistance, Take Action, Uncategorized | 5 Comments »
03
Nov
(Beyond Pesticides, November 3, 2023) California joined 10 other states that have laws partially restricting use of bee-toxic neonicotinoid (neonic) insecticides with the enactment of CA AB 363 into law in October, 2023. Californiaâs new law will ban over-the-counter sales of lawn and garden neonics by 2025, limiting their use to licensed pesticide applicators. The legislation gives the stateâs Department of Pesticide Regulation (CA EPA) until June 30, 2029 to take broader action on neonics, if it determines restrictions are necessary. CA 363 will take neonics out of the hands of homeowners, while allowing lawn care companies to continue use. The California law falls short of the strongest state laws in Nevada, New Jersey, and Maine that eliminate all outdoor (nonagricultural) uses of these chemicals, even by lawn care companies. In June, 2023 Nevada became the third state to ban lawn and garden uses of neonics, while Colorado prohibited homeowner use of land and garden neonic products, similar to laws in Maryland, New York, Massachusetts, Rhode Island, and Vermont. Minnesota recently banned neonic use on state lands and granted its home-rule subdivisions the authority to ban âpollinator-lethal pesticidesâ (those with bee warning labels) under its state law preempting local authority […]
Posted in California, Clothianidin, Colorado, Environmental Protection Agency (EPA), Maryland, Massachusetts, Minnesota, neonicotinoids, Nevada, New Jersey, New York, Rhode Island, Vermont | No Comments »
21
Jul
(Beyond Pesticides, July 21, 2023) A comprehensive and scathing report, âNeonicotinoid insecticides: Failing to come to grips with a predictable environmental disaster,â issued by American Bird Conservancy (ABC)in June, lays out the dire consequences of neonicotinoid (neonic) pesticidesâ continued use. The report is an update of an earlier review from 2013, which warned of the risks to birds, stating starkly: âA single corn kernel coated with a neonicotinoid can kill a songbird. Even a tiny grain of wheat or canola treated with the oldest neonicotinoid, imidacloprid, can poison a bird. As little as 1/10th of a corn seed per day during egg-laying season is all that is needed to affect reproduction with any of the neonicotinoids registered to date.â The story of neonic harm is one that has been repeated for generations with different pesticides. Pesticide manufacturers claim every new generation of their products is safer and more environmentally benign than the previous one. This is seldom true. There is ample evidence that pesticides pose threats to nearly every class of organism on Earth, from earthworms to elephants. The neonicotinoids, introduced in the early 1990s, have been marketed as safe for vertebrates, non-bioaccumulative, and, because of their flexible application methods […]
Posted in Agriculture, Birds, Environmental Protection Agency (EPA), neonicotinoids, Pesticide Regulation, Uncategorized, Wildlife/Endangered Sp. | No Comments »
05
Jun
(Beyond Pesticides, June 5, 2023) Butterfliesâthe most attractive of our insect faunaâare disappearing at an appalling rate, largely due to pesticide use. Recent studies have documented declines of almost 50% from 1990 to 2011 in Europe (with trends continuing), of 58 percent between 2000 and 2009 in the U.K., and of 33% from 1996â2016 in the state of Ohio in the U.S. Even steeper declines have been documented for Monarch butterflies, with an 80 percent decline of Eastern monarchs and 99 percent decline of Western monarchs. Tell EPA to eliminate pesticides that threaten butterflies. Tell the U.S. Fish and Wildlife Service and Department of Interior to help bring back butterflies by eliminating the use of pesticides that threaten them. Tell Congress that EPA and other agencies need to do their job and protect our most charismatic insects. Last year, EPA admitted that three neonicotinoid pesticides are âlikely to adversely affect from two-thirds to over three-fourths of Americaâs endangered speciesâ1,225 to 1,445 species in all,â including many butterfly species. On May 5 of this year, EPA released new analyses of these neonicsâ effects on endangered species. EPAâs analyses focus on the species most at risk of extinction, and the results represent […]
Posted in Department of Interior, Environmental Protection Agency (EPA), Fish and Wildlife Service (FWS), neonicotinoids, Pollinators, Take Action, Uncategorized, Wildlife/Endangered Sp. | 20 Comments »
09
May
(Beyond Pesticides, May 9, 2022) The Colorado legislature last week passed SB23-266, a bill limiting the use of bee-toxic neonicotinoid pesticides in the state. The news comes as other states consider their own restrictions, and the U.S. Environmental Protection Agency (EPA) is publishing details on exactly which endangered species are set to be harmed by the ongoing use of these harmful insecticides. This latest news shows that protecting pollinators is possible, and urgently needed given growing understanding of the dangers these chemicals pose to the most vulnerable wildlife in the country. Â The Colorado bill requires the stateâs commissioner of agriculture to adopt rules designating neonicotinoid pesticides as âlimited-useâ pesticides in the state. With this designation, only licensed pesticide dealers may sell products containing these chemicals. Per the stateâs legal code, the âlimited-useâ designation means the same as a federal ârestricted-useâ pesticide, which permits sales and use only for certified applicators. Passage of this bill marks an important step forward for pollinator protection efforts in the state. It will help ensure that homeowners are not able to easily purchase this product at big box retailers, but will allow continued use in residential areas and in agriculture. Coloradoâs bill fulfills guidance […]
Posted in Colorado, Environmental Protection Agency (EPA), Increased Vulnerability to Diseases from Chemical Exposure, neonicotinoids, Pollinators, Wildlife/Endangered Sp. | 2 Comments »
27
Apr
(Beyond Pesticides, April 27, 2023) The Nevada Assembly, by unanimous vote, took the state one step closer to banning the use of neonicotinoid insecticides used on plants, with a waiver for commercial agricultural purposes. Despite dramatic declines in bee populations linked to neonicotinoid pesticides and other toxic pesticides, the U.S. Environmental Protection (EPA) and state regulatory authorities have for the most part ignored beekeepers and the independent scientific literature by allowing widespread toxic pesticide useâforcing elected officials to take protective action. Portions of the bill would take effect upon passage or no later than January 1, 2024. Maine and New Jersey have adopted similar legislation. The failure to adequately regulate pesticides under federal law, the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and EPA inaction is viewed by environmentalists as the shocking disregard for the importance of biodiversity to sustaining life. The inadequate restriction of pesticides and slower than necessary transition to organic land management practices are viewed as major contributors to the âinsect apocalypse.â The legislation (A.B. 162), led by Assemblywoman Michelle Gorelow and a group of nine other Assemblymembers, illustrates a growing trend of local and state legislative bodies asserting their authority to protect against health, biodiversity, and […]
Posted in Environmental Protection Agency (EPA), neonicotinoids, Nevada, Pollinators, Uncategorized | No Comments »
03
Mar
(Beyond Pesticides, March 2, 2023) On February 22, a group of 65 nonprofit organizations (including Beyond Pesticides) filed a citizen petition with the U.S. Environmental Protection Agency (EPA) that asks the agency to close a gaping â and well exploited â regulatory loophole by revoking a 1984 regulation that waived efficacy data requirements in pesticide evaluations. This means that EPA has, for 39 years, registered pesticides without demonstrated proof of efficacy and benefits. The petition is aimed primarily at the widespread use of neonicotinoid insecticides (neonics), which are so harmful to hundreds of species â and to bees, other pollinators, and birds, in particular â that many advocates have insisted they should be banned altogether. Beyond Pesticides has advocated for a neonics ban because of their extensive harms to pollinators, multiple other organisms (including humans), ecosystems, and natural resources. The Center for Food Safety, Pesticide Action Network North America, Center for Biological Diversity, Beyond Pesticides, and other advocates have filed lawsuits in recent years to get EPA to act protectively on neonics and other pesticides. The coalition of groups in the subject case seeks to rein in a plethora of harmful impacts of neonics, given EPAâs overall lack of protective action. (For […]
Posted in Agriculture, Environmental Protection Agency (EPA), neonicotinoids, Pesticide Efficacy, Uncategorized | No Comments »
02
Mar
(Beyond Pesticides, March 2, 2023) Populations experiencing higher levels of environmental pollutant exposure, specifically pesticides, also experience a higher rate of irritable bowel syndrome (IBS), according to a study published in Environmental Toxicology and Pharmacology. IBS is a gastrointestinal disorder that causes abdominal pain or discomfort and changes in bowel behaviors. IBS affects 25 to 45 million individuals in the U.S., mostly female (two-thirds). Additionally, a quarter to half of all gastrointestinal-related visits are for IBS symptoms. Despite the unknown etiology of IBS, ample evidence demonstrates environmental contaminants, like pesticides, negatively affect the gut microbiota, causing a microorganism imbalance and resulting in inflammation associated with IBS. The gut, also known as the âsecond brain,â shares similar structural and chemical parallels to the brain. The microbiota in the gut plays a crucial role in lifelong digestion, immune and central nervous system regulation, as well as other bodily functions. Although studies show how chemical exposures affect overall human health, a growing body of peer-reviewed scientific literature is now questioning how these toxic chemicals influence gut health and the subsequent occurrence of diseases. The study notes, âThese findings may help to understand the relationship between pesticide exposure and IBS; however, more epidemiological and experimental research is needed to understand […]
Posted in Carbamates, Chlorpyrifos, Inflammatory bowel disease (IBD), Microbiata, Microbiome, neonicotinoids, organophosphate, pyrethroids | No Comments »
22
Feb
(Beyond Pesticides, February 22, 2023) Combining neonicotinoid insecticides with other commonly used pesticides can result in synergistic effects on honey bees, increasing toxicity more than any individual chemical could, according to research published in Scientific Reports earlier this month. The data highlight the grave inadequacy of the U.S. Environmental Protection Agencyâs (EPA) process for evaluating pesticide risks. Under current regulations, EPA requires chemical manufacturers to submit data only on singular active ingredients. Yet, pesticide products may be packaged or âtank mixedâ with other, equally toxic pesticides without any obligation to determine the toxicity of the material that is actually being applied. Independent research is left to fill in these gaps, and the data increasingly shows that toxicity with pesticide mixtures amounts to a roll of the dice: sometimes combinations are less toxic, sometimes their toxicities are merely additive. But more often than not, pesticide mixtures result in synergistic effects that make the product significantly more toxic than either individual chemical alone. To understand how pesticide combinations are harming pollinators, scientists began with baseline data on the individual toxicity range that common pesticides pose to honey bee colonies. Research was conducted on honey bees reared in the Stoneville Wildlife Management Area […]
Posted in cypermethrin, Dimethoate, Environmental Protection Agency (EPA), esfenvalerate, Methomyl, neonicotinoids, organophosphate, Permethrin, Pollinators, tetraconazole, Thiamethoxam, Uncategorized | 1 Comment »
14
Feb
(Beyond Pesticides, February 14, 2023) The waterways that flow into the Great Lakes are experiencing year-round pesticide contamination that exceeds benchmarks meant to protect aquatic life, according to research published in Environmental Toxicology and Chemistry by scientists at the U.S. Geological Survey (USGS). âWhat you use makes it into the water,â study coauthor Sam Oliver, PhD, told the Milwaukee Journal Sentinel. These data buttress growing calls from pesticide reform advocates that new laws are needed to protect the nationâs increasingly threatened waters. USGS scientists conducted their analysis on 16 tributaries that feed into the Great Lakes, including sites that correspond to urban, agricultural, and undeveloped land. Samples were taken at locations closest to the lake the tributary flowed into over a period of roughly one year from October 2015 to September 2016. Each sample was tested for 231 pesticides and their breakdown products. Researchers used aquatic life benchmarks set by the U.S. Environmental Protection Agency (EPA), and created a relative hazard index (RHI) for the study to evaluate whether specific sites should be prioritized for further protections. Â Across every sampled tributary, pesticides were found. Accordingly, 96% (190 out of 198) of samples taken contained pesticides or their breakdown products. […]
Posted in Atrazine, Breakdown Chemicals, Carbendazim, Clothianidin, deethylatrazine, Environmental Protection Agency (EPA), hydroxyatrazine, Imidacloprid, neonicotinoids, U.S. Geological Survey, Uncategorized, Water | No Comments »
25
Jan
(Beyond Pesticides, January 25, 2023) Populations of the western bumblebee are in free fall, with 57% declines across the speciesâ historical range, finds new research led by scientists at the U.S. Geological Survey. These data are in line with trends for other once common bumblebees in the United States, like the rusty patched and American, of which the former is now listed as endangered and the latter is under consideration. Most critically, the study authors did not simply generalize the most likely and common reasons, but instead establish the contribution that pesticide use, climate change, and land use changes have on western bumblebee declines. As the study shows, both the drivers and solutions to pollinators declines are in human hands, necessitating a broad rethinking of the nation’s approach to energy use and food production. The western bumblebee has been under considerable stress for decades. In the 1990s, there were attempts to commercialize the species as a greenhouse pollinator. This industrial approach resulted in the spread of a fungal disease called Vairimorpha bombi, and captive rearing of the western bumblebee was eventually halted and deemed untenable. These dislocations resulted in local declines of the species in certain regions of U.S. Northwest […]
Posted in Agriculture, Biodiversity, Climate Change, Environmental Protection Agency (EPA), Habitat Protection, neonicotinoids, Pollinators, Uncategorized | No Comments »
19
Jan
(Beyond Pesticides, January 19, 2023) Research published in Environmental Health Perspectives finds the presence of nine various neonicotinoids (neonics) and six neonic metabolites within human cerebrospinal fluid (CSF). CSF is an essential part of the central nervous system (CNS), especially for CNS development. Specific chemical biomarkers (measurable indicators of biological state), like pesticides, found in CSF are useful for diagnosing and evaluating numerous neurological diseases. The nervous system is an integral part of the human body and includes the brain, spinal cord, a vast network of nerves and neurons, all of which are responsible for many of our bodily functionsâfrom sensed to movement. However, mounting evidence over the past years shows that chronic exposure to sublethal (low) levels of pesticides can cause neurotoxic effects or exacerbate preexisting chemical damage to the nervous system. The impacts of pesticides on the nervous system, including the brain, are hazardous, especially for chronically exposed individuals (e.g., farmworkers) or during critical windows of vulnerability and development (e.g., childhood, pregnancy). Researchers identify the role agricultural chemicals play in CNS impacts causing neurological diseases, like amyotrophic lateral sclerosis (ALS) and Parkinsonâs disease, dementia-like diseases such as Alzheimerâs, and other effects on cognitive function. Over 300 environmental contaminants and their byproducts, including pesticides, are chemicals commonly present in human blood […]
Posted in neonicotinoids, Nervous System Effects | No Comments »