(Beyond Pesticides, November 5, 2024) Published in the journal Frontiers in Toxicology, a recent study uncovers serious flaws in the pesticide registration process at the U.S. Environmental Protection Agency (EPA) with an in-depth evaluation of the agency’s failure to protect the public from the harmful effects of five neonicotinoid (neonic) insecticides—as mandated by the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and amendments, including Food Quality Protection Act (FQPA) of 1996. This coincides with EPA’s ongoing review to renew their approval for the next 15 years (set to be announced in 2025). The report is based on the first comprehensive assessment of unpublished rodent-based Developmental Neurotoxicity (DNT) studies, conducted between 2000-2003 and submitted by pesticide manufacturers as part of the registration process. All five neonicotinoids evaluated—acetamiprid, clothianidin, imidacloprid, thiacloprid, and thiamethoxam—are associated with significant shrinkage of brain tissue at the highest dosage, according to EPA data reports (see acetamiprid, clothianidin, imidacloprid, thiacloprid, and thiamethoxam). However, with little or no data regarding the chemicals’ impacts at low and mid-level dosages, EPA has either failed to find a “No Observed Adverse Effect Level” (NOAEL) or, seemingly at random, set the NOAEL at the mid-level dosage. The evaluation suggests that perinatal exposure to […]

(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, 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 legislature—again illustrating the grip of the agrichemical industry on public policy intended to begin to address the crisis in ecosystem collapse. (See “Study Cites Insect Extinction and Ecological Collapse.”) 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 governor’s 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) in legislature-passed legislation (originally enacted) before deciding to sign it into law or can simply choose to veto the legislation. […]

(Beyond Pesticides, December 8, 2023) Nine pesticides have been found in nearly 40% of nonorganic conventional baby foods tested, according to a study conducted by Environmental Working Group (EWG). The study found no residues of the pesticides studied in a sample of certified organic baby food. While the study finds no traces of the highly neurotoxic insecticide chlorpyrifos, associated with brain damage in children, the chemical has been allowed back on the agricultural market after being removed in 2021—raising an alarm for parents who purchase baby food with ingredients grown in chemical-intensive (“conventional”) agriculture. In November 2023, a three-judge panel of the Eighth Circuit Court of Appeals reversed a 2021 U.S. Environmental Protection Agency (EPA) decision to ban chlorpyrifos’ agricultural uses, which came after a 2021 Ninth Circuit Court of Appeals decision found that the agency’s inaction violated federal pesticide law. Because of its neurotoxic effects on children, EPA had in 2000 negotiated Dow Chemical’s voluntary cancellation of most residential uses of the chemical, but left virtually all of the chemical’s agricultural uses in place. While the EWG study focuses on pesticide residues in food and the hazards associated with ingestion of dangerous chemicals, raising alarms, purchasing baby food processed with nonorganic […]

(Beyond Pesticides, October 17, 2023) In the past month, Paris, France has witnessed a surge in bed bug populations. From public transportation to hotels, hostels, and movie theatres, bed bugs are posing a threat to the city’s two million residents and potentially a broader global population as the infestation spreads.   This resurgence of bed bugs in Paris is not unique. For centuries, these pests have been both adaptable and persistent, presenting an enduring challenge to pest control. However, the current surge in bed bug infestations is not merely a revival of a longstanding problem; it is a complex issue intertwined with the development of resistance to insecticides, mainly through a mechanism known as knockdown resistance. This mechanism, along with three other main resistance mechanisms, has enabled these insects to defy chemical-intensive control methods  Knockdown resistance is a significant factor contributing to the resistance exhibited by bed bugs to insecticides, especially pyrethroids. The mechanism plays a central role in countering the action of these insecticides, which target the nervous system of bed bugs, causing paralysis and eventual death. Knockdown resistance provides the genetic adaptation that provides bed bug populations with resistance to insecticides. It inhibits the effectiveness of certain insecticides. Bed […]

(Beyond Pesticides, February 8, 2023) Spraying pesticides around one’s garden negatively impacts local bird populations, according to research published by scientists at the University of Sussex, UK in Science of the Total Environment. Although this reasoning sounds common sense to those versed in the works of Rachel Carson, it underscores the immense importance of carrying on the legacy of her work and continuing to educate the public about the ongoing dangers posed by modern pesticides. As the study authors write, “Overall, our study shows that garden bird abundance and richness is strongly influenced by both extrinsic and intrinsic factors, and suggests that garden management, particularly regarding pesticide use, has a significant effect on bird life.” Researchers collected data by partnering with the British Trust for Ornithology, which conducts annual citizen-science counts of bird populations in UK gardens. Nearly 24,000 residents participate in the survey, which also includes information about the urbanization level surrounding their gardens, and other habitat characteristics. A group of these volunteers were provided with a questionnaire about their pesticide practices between 2020-2021, recording information on how often the pesticides were applied, as well as the pesticide brand name. After removing incomplete or unusable data, 615 individual gardens […]

(Beyond Pesticides, January 11, 2022) Neonicotinoid insecticides can have detrimental effects on liver health, according to research published in the Journal of Hazardous Materials. While this is the first study to investigate how these chemicals harm the liver, there is increasing evidence that neonicotinoids, otherwise notorious for their effects on pollinators and aquatic life, can cause direct harm to human health. As the U.S. Environmental Protection Agency (EPA) continues to protect the pesticide industry from any measure of meaningful regulation around these hazardous products, the job falls to advocates to place pressure on elected officials to make the changes necessary to safeguard long-term health and well-being. Scientists postulated that neonicotinoids are neither metabolized by the liver nor excreted by urine. To test that hypothesis, 201 individuals from a hospital in China were enrolled into a study. Of the enrolled,  81 were cancer patients, and 120 were not. These individuals underwent a procedure called endoscopic retrograde cholangiopancreatography whereby samples of their bile, a fluid produced in the liver, were retrieved and analyzed. Researchers also performed a series of blood tests, measuring a range of biomarkers, including cholesterol, bilirubin, bile acids, white blood cells, platelets, and others. Lastly, scientists determined the amount […]

(Beyond Pesticides, July 16, 2021) Recently published research reviews the 2013 Wilsonville, Oregon mass bumblebee die-off from application of the neonicotinoid dinotefuran on 55 linden trees in a big-box-store parking lot. In that single event, the research paper (published in Environmental Entomology) estimates between 45,830 and 107,470 bumblebees from some 289–596 colonies were killed. Reporting on the new study, by Entomology Today, quotes primary conclusions of the co-authors: “Our study underscores the lethal impact of the neonicotinoid pesticide dinotefuran on pollinating insect populations,” and, “It is likely that the vast majority of mass pesticide kills of beneficial insects across other environments go unnoticed and unreported.” As Beyond Pesticides has chronicled, the U.S. and the world are undergoing a pollinator crisis, caused in significant part by agricultural pesticides. Dinotefuran, the neonicotinoid (neonic) that killed those Oregon bumblebees, is used against fleas, thrips, tree-boring caterpillars, emerald ash borers, hemlock woolly adelgids, and in the Oregon case, aphids. Entomology Today (ET) notes that the timing of this particular application could not have been worse: it happened on a warm day when the linden trees were in full flower and the bees out in force. Ironically, it occurred during Nation Pollinator Week. ET pens a […]

(Beyond Pesticides, May 2, 2019) Researchers have documented an increase in food and drinking water residues of neonicotinoids, insecticides linked to breast cancer. Using the Pesticide Data Program (PDP), 1999-2015, of the U.S. Department of Agriculture, the researchers identified near-peak detection frequencies in 2015, after a decline from 2008-2013. Imidacloprid remains the most common neonicotinoid detected across imported commodities, while the neonicotinoids clothianidin, thiamethoxam, acetamiprid, and flonicamid are replacing imidacloprid in domestic production. Authors note that these newer neonicotinoids are potentially more toxic than imidacloprid, raising concerns for understudied human health and environmental impacts. The study, Trends in neonicotinoid pesticide residues in food and water in the United States, 1999–2015, published in the journal Environmental Health, finds the highest detection frequencies for neonicotinoids in drinking water, with 30% of treated drinking water turning out positive for imidacloprid in 2011. Certain fruits and vegetables are also frequently contaminated by neonicotinoids, with detection frequencies ranging from 20% to as high as 57% in the case of imidacloprid on cauliflower. While the study points to specific fruits and vegetables as posing higher risk, the main message reaches beyond individual commodity or individual neonicotinoid results. Authors uncover a systematic increase in detection of neonicotinoid […]

(Beyond Pesticides, March 4, 2019) Last week, U.S. Representative Earl Blumenauer (D-OR) reintroduced the Saving America’s Pollinators Act (H.R.1337) to cancel specific bee-toxic pesticides and establish a review and cancellation process for all pesticides that are potentially harmful to pollinators. The specific pesticides targeted in the bill include the systemic insecticides imidacloprid, clothianidin, thiamethoxam, dinotefuran, acetamiprid, sulfoxaflor, flupyradifurone, and fipronil. The bill also establishes requirements for review of other potentially bee-toxic chemicals by an independent pollinator protection board, and requires annual reports on the health and population status of pollinators. The bill creates a sustainable model for pollinator protection in the face of ongoing obstruction by an increasingly industry-influenced EPA. There are 29 cosponsors to date. The current bill is the fifth version of Saving America’s Pollinators Act (SAPA), which was first introduced by U.S. Representative Conyers (D-MI) in 2013. The newest version differs from previous bills in its bold definition of who should have responsibility for assessing harm to pollinators. SAPA 2019 calls for the establishment of a Pollinator Protection Board, to be composed of expert scientists, beekeepers, farmers, members of environmental organizations and other key stakeholders, nearly all of whom must not have any conflict of interest or affiliation […]

(Beyond Pesticides, October 11, 2017) Last week, the Natural Resources Defense Council (NRDC) filed a lawsuit challenging the U.S. Environmental Protection Agency’s (EPA) registration of neonicotinoid pesticides – acetamiprid, dinotefuran, and imidacloprid, and the agency’s failure to first consult with the U.S. Fish and Wildlife Service on the pesticides’ impact on threatened or endangered species. The lawsuit, filed in the U.S. District Court for the District of Columbia, challenges the failure of the federal government to evaluate the impacts of neonicotinoid pesticides (“neonics”) on threatened and endangered species, like the rusty patched bumble bee, the black-capped vireo, and the San Bruno elfin butterfly. The suit cites widespread presence of neonics in the environment which presents serious risks to wildlife across large portions of the country. It contends that they pose significant adverse consequences to threatened and endangered species. According to the lawsuit, because of toxicity and pervasive environmental contamination, NRDC is now challenging EPA’s registrations of pesticide products containing one of three main neonic active ingredients—acetamiprid, dinotefuran, and imidacloprid—and seeks vacatur of those registrations until EPA complies with the law. “The EPA ignored endangered bees, butterflies, and birds when it approved the widespread use of neonics,” said Rebecca Riley, a senior […]

(Beyond Pesticides, November 5, 2014) New research from Pennsylvania State University reports that pesticides cause large changes in the expression of genes involved in detoxification, immunity and nutrition-sensing in bees, adding to previous research that has found that pesticides compromise bee immune function. This research also finds that bees with a diet of natural, high quality pollen exhibit greater resistance to pesticides’ deleterious effects than bees on an artificial diet. The new study, “Genomic analysis of the interaction between pesticide exposure and nutrition in honey bees (Apis mellifera),” finds that pesticide exposure can impact the expression of genes that are sensitive to diet and nutrition. The researchers, upon feeding honey bees either the miticidal pesticides, coumaphos or fluvalinate, for a period of seven days, noticed significant changes in 1,118 transcripts – or strands of RNA – in the experimental group. The transcripts include genes involved in detoxification, immunity, and nutrition. The authors report that there is substantial overlap in responses to pesticides and pollen-containing diets at the genetic level. Subsequent analyses demonstrate that pollen-based diets reduce the honey bees’ susceptibility to pesticide stress verses an artificial diet – e.g. a soy protein or no protein diet. Thus, the researchers note […]

(Beyond Pesticides, October 31, 2014) Without any mention of the role of pesticides in bee decline, or emphasis on organic practices to help pollinators, Agriculture Secretary Tom Vilsack announced Wednesday that more than $4 million in technical and financial assistance will be provided to help farmers and ranchers in the Midwest improve the health of honey bees. The announcement renews and expands on a $3 million pilot investment last spring to create pollinator-friendly habitat in five Midwestern states. The effort responds to the Presidential Memorandum, which directs USDA to expand the acreage and forage value in its conservation programs. The Memorandum, issued at the close of National Pollinator Week 2014, directed federal agencies to establish a Pollinator Health Task Force, and tasked agency leads at the U.S. Department of Agriculture (USDA) and U.S. Environmental Protection Agency (EPA) to develop a pollinator health strategy within 180 days that supports and fosters pollinator habitat. “The future of America’s food supply depends on honey bees, and this effort is one way USDA is helping improve the health of honey bee populations,” Vilsack said. “Significant progress has been made in understanding the factors that are associated with Colony Collapse Disorder and the overall health […]

(Beyond Pesticides, September 10, 2014) As bee and other pollinator populations continue to decline around the world, with clear evidence pointing to neonicotinoid pesticides as a prime cause, Emory University announced last week that it will be eliminating the use of this controversial class of chemicals from its campus, joining institutions and  communities like University of Vermont Law School, Spokane  (Washington),  Eugene (Oregon), and Shorewood (Minnesota). Neonicotinoids are a class of insecticides that share a common mode of action that affects the central nervous system of insects,  affecting the organisms’ ability to function. These systemic pesticides, which move through the plant’s vascular system and express themselves through pollen and nectar, include imidacloprid, acetamiprid, clothianidin, dinotefuran, nithiazine, thiacloprid and thiamethoxam. A continually growing body of science has implicated neonicotinoids, which are applied to or incorporated into seeds for agricultural, ornamental and garden plants, as a key factor in recent global bee die-offs. Beekeepers across the country reported losses of 40 to 90 percent of their bees last winter. The implications of this loss are staggering —one in every three bites of food is reliant on bee pollination, and pollinators make possible  $20-30 billion of annual U.S. agricultural production. Last week, Emory […]

(Beyond Pesticides, August 14, 2014) Pesticides are not the first thing to pop into mind when peering into a hot mug of steaming, pale green or murky black tea first thing in the morning. A recent report published by Greenpeace India announced the results of an investigation that tested for pesticide residues in branded tea. The verdict? Nearly 94% of the tea samples tested contained at least one of 34 different pesticides, while over half contained a toxic cocktail of more than 10 different pesticides. The residues found include DDT, which was banned for use in agriculture in India since 1989, and endosulfan, which was banned in 2011 by the Indian Supreme Court. Over half of the 49 samples contained illegal pesticides — either those that are not approved for use in tea cultivation or exceeded recommended limits. These pesticides include ones that have been long banned from agriculture and use in tea cultivation (DDT and triazophos), suspected mutagens and neurotoxicants (monocrotophos), and insecticides associated with the global decline in bee populations (neonicotinoids like thiacloprid and thiamethoxam). The most frequently detected pesticides include thiamethoxam (78%), cypermethrin (73%), acetamiprid (67%), thiacloprid (67%), DDT (67%), deltamethrin (67%), dicofol (61%), imidacloprid (61%), and […]

(Beyond Pesticides, July 25, 2014) A new U.S. Geological Survey (USGS) study published yesterday found neonicotinoid pesticides persistent and prevalent in streams throughout the Midwestern United States. The study is the first to investigate the presence of neonicotinoids on a wide-scale level in the Midwest. While neonicotinoid use has increased throughout the country, the Midwest in particular has seen a dramatic increase over the last decade. The use of clothianidin, one of the chemicals studied, on corn in Iowa alone has approximately doubled in just two years, from 2011 and 2013. Neonicotinoids are chemically similar to nicotine and are pesticides that are toxic to a broad range of insect pests. They are also known as systemic pesticides, which are pesticides that spread throughout the entire plant structure, making everything from roots to pollen toxic to organisms that come in contact with it. As a result, neonicotinoids have been linked to the global disappearance of honey bees and other nontarget organisms, such as earthworms, birds, and aquatic invertebrates. USGS scientist Kathryn Kuivila, Ph.D., stated, “Neonicotinoid insecticides are receiving increased attention by scientists as we explore the possible links between pesticides, nutrition, infectious disease, and other stress factors in the environment possibly […]

(Beyond Pesticides, June 19, 2014) The city of Spokane, Washington is inching ever closer to a ban on neonicotinoid pesticides, a class of chemicals that has been linked to the global disappearance of honey bee populations. If the ban passes, Spokane will soon be part of a growing movement to protect pollinators. The Spokane City Council will be voting on the neonicotinoid ordinance this Monday, June 23. The ban will halt both the purchase and use by the city of products that contain neonicotinoids. The ordinance specifically names six types of neonicotinoids used on crops, imidacloprid, clothianidin, thiamethoxam, dinotefuran, acetamiprid, and thiacloprid, and explains that the majority of these chemicals “are highly toxic to bees, can reduced [sic] fecundity, depress the bees immune system, and increase susceptibility to biological infections, and, depending on the amount of exposure, can be lethal/ sub-lethal to the honey bees.” You can read more about the exact wording of this proposed ordinance here. Council President Ben Stuckart, who introduced the ordinance, wants the city to stop using the chemicals on its properties. The ban would be part of an undertaking to implement environmentally sustainable initiatives at City Hall. The ordinance would affect all city departments […]

(Beyond Pesticides, June 18, 2014) Just in time for Pollinator Week, the Melody-Catalpa neighborhood of Boulder has become the first “bee-safe” locality in Colorado that has pledged to not use neonicotinoids and other systemic pesticides in the community, in an effort to protect bees and other pollinators, and provide safe forage and habitat. Melody-Catalpa joins other small communities across the country in taking a stand against bee decline by committing to not use pesticides toxic to bees and other pollinators. The small community north of Boulder signed a pledge not to use neonicotinoids and similar systemic pesticides, and is buzzing with excitement over earning the distinction. This past spring, the City of Eugene, Oregon became the first community in the nation to specifically ban from city property the use of  neonicotinoid pesticides, citing recent research demonstrating a link between pesticides that contain neonicotinoids and the loss of plant pollinators, including honey bees, native bees, butterflies, moths, and other beneficial  insects. Melody-Catalpa’s grassroots action began earlier this year when three neighborhood residents banded together to sign on about 20 volunteers to go door to door to get more than half of the area’s 389 households to sign a pledge not to […]

(Beyond Pesticides, June 17, 2014) Given that plant starts in many garden centers across the country are grown from seeds coated with bee-harming neonicotinoid pesticides, or drenched with them, Beyond Pesticides has launched the Pollinator-Friendly Seed Directory, a comprehensive list of companies that sell organic seeds to the general public. Included in this directory are seeds for vegetables, flowers, and herbs. As bees suffer serious declines in their populations, we urge people and communities to plant habitat that supports pollinator populations, and have provided information to facilitate this in our BEE Protective Habitat Guide, as well as our how-to guide on managing landscapes with pollinators in mind. Unfortunately, plants are too often grown with hazardous pesticides that either harm pollinators in their cultivation or threaten bees as they pollinate or forage on treated plants. Last summer, a groundbreaking report revealed that many bee-friendly garden plants sold at Home Depot and Lowe’s contain neonicotinoid pesticides with no warning to consumers. Neonicotinoid residues were detected in seven out of thirteen samples (54 percent) of commercial nursery plants. In response to this report, Beyond Pesticides, along with Friends of the Earth and other allies, launched a campaign to tell major retailers to stop […]

(Beyond Pesticides, December 20, 2013) The European Food Safety Authority (EFSA) announced on Tuesday that pesticides linked to honey bee deaths worldwide may also damage human nervous systems ””in particular the brain, and recommended that the European Commission lower the guidance levels of acceptable exposure until more research is conducted. This new determination heightens the call to ban the use of these toxic chemicals in the U.S., following the lead of the European Union (EU). EFSA found that two commonly used chemicals “may adversely affect the development of neurons and brain structure associated with functions such as learning and memory” particularly of children. The recommendation focuses on two chemicals ””acetamiprid and imidacloprid”” in a relatively new class of insecticide called neonicotinoids. Three chemicals in this class were recently placed under a two-year ban in the European Union (EU) for uses on flowering crops known to attract honey bees. The move stems from a recent review of research on rats which found, “Neonicotinoids may adversely affect human health, especially the developing brain.” Researchers who exposed newborn rats to one of these chemicals ””imidacloprid”” found they suffered brain shrinkage, fewer nerve signals controlling movement, and weight loss. Another study on rats found […]

(Beyond Pesticides, August 16, 2013) Beyond Pesticides just helped release a new report with Friends of the Earth and other allies, revealing that the world’s most popular pesticide, neonicotinoids, implicated as a key factor in global bee die-offs, may be lurking in our own gardens. As we celebrate National Honey Bee Day this weekend, join in asking Lowe’s, Home Depot and other leading garden centers to take action and stop the sale of neonicotinoids and plants treated with these bee-killing chemicals. Take Action: Bee Protective! Tell Home Depot, Lowe’s and others to stop selling bee-killing products. There are now dozens of insecticides on retail shelves that contain neonicotinoids. Product labels show the active ingredients of these products, including: imidacloprid,  acetamiprid, clothianidin, dinotefuran, nithiazine, thiacloprid and thiamethoxam. While neonicotinoids is a relatively new class of insecticide that affects the central nervous system of insects, a growing body of science has demonstrated neonicotinoids (neonics) are a key factor in bee decline nationwide, with beekeepers recording losses of up to 90 percent of their bees this winter. Recently, 50,000 bumblebees, likely representing over 300 colonies, were found dead or dying in a shopping mall parking lot in Wilsonville, Oregon. Authorities confirmed that this […]

(Beyond Pesticides, August 15, 2013) Many “bee friendly” home garden plants sold at Home Depot (NYSE: HD), Lowe’s (NYSE: LOW) and other leading garden centers have been treated with pesticides shown to harm and kill bees, according to a pilot study released yesterday by   Friends of the Earth-US, Beyond Pesticides,  and others.  Supporting organizations sent a  letter  yesterday —along with petitions signed by more than 175,000 people— to Lowe’s, Home Depot, Target and other top garden retailers, asking the stores to stop selling neonicotinoids and plants treated with the pesticides. A majority of the UK’s largest garden retailers, including Homebase, B&Q and Wickes, have already stopped selling neonicotinoids. The pilot study, co-authored by the Pesticide Research Institute, found that 7 of 13 samples of garden plants purchased at top retailers in Washington DC, the San Francisco Bay Area and Minneapolis contain neurotoxic pesticides known as neonicotinoids that studies show harm or kill bees and other pollinators. Neonicotinoids are a relatively new class of insecticides that share a common mode of action that affect the central nervous system of insects, resulting in paralysis and death. These systemic pesticides, which  move through the plant’s vascular system and express themselves through pollen […]