(Beyond Pesticides, December 15, 2022) Industrial agriculture has both created and amplified the spread of the now highly problematic waterhemp (Amaranthus tuberculatus) plant, according to research published this month in the journal Science. Over the last 80 years, the push to increase monoculture plantings, expand cropland, and utilize chemical fertilizers and pesticides has changed waterhemp from a tame riparian wild plant into an aggressive, weedy intruder able to compete with row crops like corn and soybean. “The genetic variants that help the plant do well in modern agricultural settings have risen to high frequencies remarkably quickly since agricultural intensification in the 1960s,” said study author Julia Kreiner, PhD with the University of British Columbia’s Department of Botany. “The types of changes we’re imposing in agricultural environments are so strong that they have consequences in neighbouring habitats that we’d usually think were natural.” To better understand how this plant went from a waterside obscurity to North America’s most notorious “weed,” researchers tracked the shifts occurring within the plants genome. Using data from herbarium samples first collected in 1828 until 2011, scientists sought out alleles (genetic mutations) that corresponded with agricultural intensification and analyzed the frequency of their occurrence over the nearly […]

(Beyond Pesticides, December 14, 2022) Ultraviolet (UV-C) light has the potential to successfully manage mite (Tetranychus urticae) populations without reducing yields or resorting to toxic pesticides, according to research published by scientists at University of Florida. “Since very few miticides (sprays) are currently effective in suppressing twospotted spider mites in strawberries, the use of UV light provides an effective physical control method that can be used in fields and in high-tunnel strawberry production systems,” says study author Sriyanka Lahiri, PhD. The findings provide an encouraging technique for farmers, but further investigation is needed to observe the success of this approach in other cropping systems.   Researchers compared the efficacy of four treatment approaches, including use of the insecticide spinetoram, a low powered application of UV-C light twice a week, a high-powered application of UV-C light twice a week, and an untreated control. Researchers also looked closely at mite egg hatchability by rearing eggs in the laboratory and then transferring them out to the field for treatment with UV-C light. Results were not consistent across the two-year trial as researchers indicate that in most of the field trials, no effect was seen due to low levels of natural infestation. However, during […]

(Beyond Pesticides, December 13, 2022) Pesticides have a long history associated with hormone (endocrine)-disrupting properties that induce various molecular changes, prompting disease development. Adding to the science, a review published in Environmental Exposure, Biomonitoring and Exposure Assessment highlights how specific estrogen-mimicking pesticides increase the risk of disease, particularly hormone-related cancers among women (i.e., breast, ovarian, endometrial cancer) and men (i.e., testicular, prostate cancer). Like pesticides, endocrine disruptors are xenobiotic (i.e., chemical substances foreign to an organism or ecosystem). Many reports demonstrate that exposure to endocrine-disrupting chemicals can adversely affect human, animal—and thus environmental—health by altering the natural bodily hormones responsible for conventional reproductive, physical, and mental development. Endocrine disruption can lead to several health problems, including hormone-related cancer development (i.e., thyroid, breast, ovarian, prostate, testicular), reproductive dysfunction, and diabetes/obesity that can span generations. Therefore, studies related to pesticides and endocrine disruption help scientists understand the underlying mechanisms that indirectly or directly cause cancer, among other health issues. Pesticides are one of the most potent xeno-estrogenic compounds, as estrogenic strength and environmental half-life exceed those of other xeno-estrogenic compounds. Focusing on organochlorine pesticides (OCs), the study evaluates the chemical effects on the physiological (anatomic) system to increase cancer risk. Using human studies, researchers assessed how estrogen-medicated cancer develops in women and men. […]

(Beyond Pesticides, December 12, 2022) It is time for the U.S. Department of Agriculture (USDA) to follow through on its duty to assess individual “inert” ingredients used in organic production. In creating the original regulations for the National Organic Program (NOP), USDA—based on the recommendation of the National Organic Standards Board (NOSB)—decided to postpone the evaluation of so-called “inert” ingredients until active materials had been reviewed for the National List of Allowed and Prohibited Substances. In this context, “inert” is a misleading legal term since the ingredient may be chemically or biologically active, but not included for purposes of attacking a target organism. The first regulation and all subsequent revisions have allowed the use of “inert” ingredients on EPA’s former Lists 4A (“minimal risk inert ingredients”) and 4B (“other ingredients for which EPA has sufficient information to reasonably conclude that the current use pattern in pesticide products will not adversely affect public health or the environment”). A limited number on List 3 (“inerts of unknown toxicity”) were allowed in pheromone products. [This action requires a submission at Regulations.gov. You can copy and paste from the suggested comment below. Comments are due December 31, 2022.] Tell USDA that the National Organic Program […]

(Beyond Pesticides, December 9, 2022) Representatives from more than 195 countries have descended on Montreal for the December 7 start of COP15 — the United Nation’s (UN’s) Conference of the Parties to the Convention on Biological Diversity (CBD). The UN Development Programme sets out the context for this summit: “Despite ongoing efforts, biodiversity is deteriorating worldwide, and this decline is projected to worsen with business-as-usual. The loss of biodiversity comes at a great cost for human well-being and the global economy.” Beyond Pesticides has documented many aspects of this decline in biodiversity, and the implications for ecosystem, human, and planetary health. In this COP15 context, the data points to the importance of broad adoption of organic regenerative / agroecological systems, which can very significantly address the interactive health, biodiversity, and climate crises. Close on the heels of November’s UN COP27 summit on climate, COP15 has commenced, with the goal of adopting a post-2020 Global Biodiversity Framework (CBF) to provide “a strategic vision and a global roadmap for the conservation, protection, restoration, and sustainable management of biodiversity and ecosystems for the next decade.” The first such summit was called the Convention on Biological Diversity and was held in 1993. Out of […]

(Beyond Pesticides, December 8, 2022) Children with higher levels of certain pesticide metabolites are more likely to go through early puberty, according to research published recently in Environmental Pollution. The findings by a team of Spanish researchers speak to a need for greater protections for children from toxic pesticide exposure. Children are much more sensitive to pesticide exposure than adults as they take in greater amounts of toxics relative to their body weight and have developing organ systems. Managing homes and yards without chemicals and purchasing organic food whenever possible can significantly reduce childhood pesticide exposure.   Researchers began their investigation with children aged 7-11 participating in the Spanish state’s Environment and Childhood multicenter birth cohort stud, an ongoing project aimed at understanding the effect of environmental exposures on pregnancy, fetal, and childhood development in the country. Out of over 3,000 children enrolled in the project, 1,539 had their urine sampled for the presence of pesticide metabolites. Scientists focused on four insecticides breakdown products—a chlorpyrifos metabolite ‘TCPy’, a metabolite of the organochlorine diazinon ‘IMPy’, a general organophosphate metabolite ‘DETP’, the pyrethroid metabolite ‘3-PBA’, and a metabolite of ethylene-bis-dithiocarbamate fungicides ‘ETU’. Urinary levels of these pesticide metabolites were then compared against […]

(Beyond Pesticides, December 7, 2022) A recent study from Australian researchers has investigated pesticide use through an unusual lens — by quantifying the environmental footprints of pesticide use in 82 countries and territories (and eight regions), and then concluding that international trade drives significant pesticide use. The researchers identify the U.S., Brazil, and Spain as the biggest exporters of the “pesticide hazard load” associated with those environmental footprints, and China, the United Kingdom, and Germany as the top three importers. They lay responsibility for this hazard load at the feet of the unsustainable intensification of chemical-intensive agriculture (via synthetic pesticide and fertilizer use during the past 50 years), and ratcheting consumer demand for goods and services. Indeed, they conclude that the latter, in “developed” countries, is responsible for a substantial portion of the pesticide pollution in other countries. The study authors note that previous “efforts to quantify the environmental footprints of global production and consumption have covered a wide range of indicators, including greenhouse gas emissions, water scarcity, biodiversity, nitrogen pollution, acidification, land use, and others, but they have largely missed . . . represent[ing] the environmental pressures exerted by pesticide use.” The researchers set themselves the task of quantifying […]

(Beyond Pesticides, December 6, 2022) Persistent organic pollutants (POPs)—including banned pesticides—present a health risk to humpback whales (Megaptera novaeangliae), according to a study published in Environmental Pollution. Regarding female humpback whales, levels of POPs in blubber are higher in juveniles and subadults than in adults, primarily from the transference of contaminants from the mother to her calf.  Organochlorine compounds (OCs), such as organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs), are well-known persistent organic pollutants. The international Stockholm Convention treaty (signed by 152 countries, but not the U.S.) banned these primary pollutants of concern (UNEP, 2009) in 2001 (taking effect in 2004) because of their persistence, toxicity, and adverse effects on environmental and biological health. These pollutants have a global distribution, with evaporation and precipitation facilitating long-range atmospheric transport, deposition, and bioaccumulation of hazardous chemicals in the environment. However, these chemicals can remain in the environment for decades and interact with various current-use pesticides, including organophosphates, neonicotinoids, and pyrethroids. Although various studies demonstrate the volatile, toxic nature of POPs, much less research evaluates the impact POPs have on maternal offloading or transfer of contaminates to offspring and respective health consequences. The globe is currently going through the Holocene Extinction, Earth’s 6th mass extinction, with one […]

(Beyond Pesticides, December 5, 2022) A petition filed last week with the U.S. Fish and Wildlife Service (USFWS) urges increased protections for the West Indian manatee after dramatic declines in its population over recent years. In 2017, USFWS downgraded the classification of the manatee from endangered—a category that broadly protects against “take,” defined as “to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or to attempt to engage in any such conduct”—to threatened, for which an “acceptable” level of “take” is allowed. Following the downlisting of the species, manatee populations have declined dramatically. Tell the U.S. Fish and Wildlife Service to upgrade the Florida manatee to endangered and require protection from chemical pollution. Tell your Congressional Representative to cosponsor H.R. 4946 and your Senators to introduce identical legislation. Tell Florida’s Fish and Wildlife Conservation Commission to protect manatees. Florida manatees, a subspecies of the West Indian manatee (Trichechus manatus), can live as long as 60 years, weigh up to 1,200 lbs, and have no natural predators. The biggest threat to these peaceful marine mammals is human activity. Humans harm manatees directly through boat strikes and encounters with fishing equipment, canal locks, and other flood control structures, but the largest threat […]

(Beyond Pesticides, December 2, 2022) The longest-running — four-decade — investigation comparing organic and conventional grain-cropping approaches in North America is reporting impressive results for organic. Recently announced in the Rodale Institute’s Farming Systems Trial — 40-Year Report are these outcomes: (1) organic systems achieve 3–6 times the profit of conventional production; (2) yields for the organic approach are competitive with those of conventional systems (after a five-year transition period); (3) organic yields during stressful drought periods are 40% higher than conventional yields; (4, 5, and 6) organic systems leach no toxic compounds into nearby waterways (unlike pesticide-intensive conventional farming), use 45% less energy than conventional, and emit 40% less carbon into the atmosphere. Beyond Pesticides reported in 2019 on similar results, from the institute’s 30-year project mark, which have been borne out by another three years of the trials. The current report builds on results from the FST that were shared in the RI’s 2020 white paper, Regenerative Organic Agriculture and Climate Change: A Down-to-Earth Solution to Global Warming,” which integrated the newest research data and offered action steps for consumers, policymakers, farmers, and others. That report asserted that a global switch to a regenerative food system could not […]

(Beyond Pesticides, December 1, 2022) The U.S. Environmental Protection Agency (EPA) must put measures in place to protect endangered species from the hazardous insecticide cyantraniliprole before September 2023. The requirements stems from a recent federal appeals court ruling that found EPA in violation of its statutory obligations under the Endangered Species Act (ESA). The agency originally lost its legal case on this chemical in 2017, but has since done nothing to fulfill the initial court order, necessitating further litigation by conservation groups. “It’s outrageous that the EPA is thumbing its nose at a federal court order even as cyantraniliprole wreaks havoc on our most endangered wildlife,” said Jonathan Evans, environmental health legal director at the Center for Biological Diversity. “The EPA has acknowledged that this pesticide is incredibly toxic to bees and other invertebrates, but the agency is so accustomed to putting the profits of the pesticide industry ahead of its duty to protect human health and our environment that for years it simply ignored a direct court order.” Cyantraniliprole is a systemic insecticide registered for use in 2014. It presents similar risks to pollinators and wildlife as other widely used systemics, such as the neonicotinoid class of chemicals. Its […]

(Beyond Pesticides, November, 30, 2022) A petition filed last week with the U.S. Fish and Wildlife Service (USFWS) urges increased protections for the West Indian manatee after dramatic declines in its population over the last several years. In 2017, the USFWS downgraded protections for the manatee, a move that was widely criticized by conservation groups as premature. That sentiment has become a reality, with nearly 2,000 manatees dying over the last two years from a range of preventable factors. West Indian manatees, a species of manatee that includes the Florida and Antillean Manatee subspecies, were first listed under the Endangered Species Act (ESA) in 1973, at a time when there were less than 1,000 individual animals in the United States. By 2017, the number of manatees had increased to over 6,000, leading then-Interior Secretary Ryan Zinke to downlist (downgrade) the animals from endangered to threatened under ESA. ESA works to protect species by listing them as either threatened or endangered. A species classified as endangered is in danger of extinction throughout all or a significant a portion of its range and a threatened classification means the species is likely to be endangered within the foreseeable future.  Endangered species are given […]

(Beyond Pesticides, November 29, 2022) Based on new international research adding weight to previous research on falling sperm counts, it is critical that environmental agencies address this and other problems related to endocrine disruption. The study by Levine et al. finds that the drop in sperm count—a drop of 51.6% from 1973 through 2018—is global and that the rate of decline is accelerating. Tell EPA and Congress that pesticide use cannot continue without findings of no endocrine disruption.  The documented (average) drop in sperm counts is approaching the level at which the ability to cause a pregnancy begins to plummet dramatically. The reduction in male fertility may have profound psychological and social impacts, including anxiety, low self-esteem, and depression. These psychological problems have health impacts of their own. Equally serious are connections of anxiety and depression with violent behavior and suicide. Compounding the problem is the fact that men are unlikely to seek fertility-related social support. The drop in sperm counts is just one example of endocrine disruption largely due to exposure to toxic chemicals. The endocrine system consists of a set of glands (thyroid, gonads, adrenal and pituitary) and the hormones they produce (thyroxine, estrogen, testosterone, and adrenaline), which […]

(Beyond Pesticides, November 27, 2022) On Tuesday, November 29 (at 1:00-2:30pmEST), two preeminent researchers will present their research and worldwide collaborative work to fully characterize the effects of the climate crisis and the viable solutions associated with land management. The Forum headliners are (i) Rachel Bezner Kerr, PhD, Cornell University professor just back from COP 27 [27th Conference of the Parties to the United Nations Framework Convention on Climate Change] and co-author of the definitive United Nations (UN) report on climate and food production and (ii) Andrew Smith, PhD, chief operating officer of the Rodale Institute and coauthor of several landmark reports on soil biology and carbon sequestration, including the just released Farming Systems Trial—40-Year Report. With livability of the planet on the brink, the speakers at the upcoming Forum make the case to immediately reverse the increase of greenhouse gases, carbon dioxide, nitrous oxide, and methane to stop the changes on the horizon that destroy life—from floods, fires, and associated climate-induced hazards to food production. The good news, according to the scientists, is that there are solutions available now in the agricultural and land management sectors that can reverse the threat if dramatic changes are made. Dr. Bezner Kerr, […]

(Beyond Pesticides, November 25, 2022) A study published in Chemosphere adds to the growing body of research demonstrating the endocrine (hormone) disrupting effects of glyphosate play in breast cancer development. Exposure to the herbicide glyphosate and other glyphosate-based herbicides (GBHs) at high concentrations mimics the estrogen-like cellular effects of 17β-estradiol (E2), altering binding activity to estrogen receptor α (ERα) sites, thus causing fundamental changes in breast cancer cell proliferation (abundance).  Glyphosate is the most commonly used active ingredient worldwide, appearing in many herbicide formulas, not just Bayer’s (formerly Monsanto) Roundup®. The use of this chemical has been increasing since the inception of crops genetically modified to tolerate glyphosate over two decades ago. The toxic herbicide readily contaminates the ecosystem with residues pervasive in food and water commodities. In addition to this study, literature proves time and time again that glyphosate has an association with cancer development, as well as human, biotic, and ecosystem harm. Therefore, advocates point to the need for national policies to reassess hazards associated with disease development and diagnosis upon exposure to chemical pollutants. The researchers note, “The results obtained in this study are of toxicological relevance since they indicate that glyphosate could be a potential endocrine disruptor in the mammalian system. Additionally, […]

(Beyond Pesticides, November 24, 2021) On Thanksgiving, thank you for being a part of Beyond Pesticides and sharing and contributing to the vision necessary to protect the web and the fragility of life. We believe that there is no time like Thanksgiving to think about how we can more effectively join together as families and communities across divisions and different points of view to find a common purpose in protecting the health of the environment and all that inhabit it. Unfortunately, a host of pesticides, genetically engineered materials, and others in conventional Thanksgiving foods impact human health and threaten the environment. With far too many adverse health and ecological effects associated with toxic chemicals, organic practices are viable solutions to mitigate pesticide contamination and subsequent exposure. Read on as we consider the range of challenges we must confront and the solutions that can bring us all together. Additionally, you can help Beyond Pesticides in educating and building a movement that will bring long-needed protection to humans, animals, and the entire environment by attending the third seminar on November 29 on Climate during the 2022 National Forum Series, Health, Biodiversity, and Climate: A Path for a Livable Future. The National Forum […]

(Beyond Pesticides, November 23, 2022) A new study throws into question the value of the pest management concept of setting action levels around pest infestations. In the course of watermelon production over a span of two years, pollination, not pest levels, was the key determining factor for yield. “These data advocate for a reprioritization of management, to conserve and protect wild bee pollination, which could be more critical than avoiding pest damage for ensuring high yields,” the study, published in Proceedings of the Royal Society B, indicates. Action levels are considered an important aspect of an integrated pest management (IPM) approach in agriculture, whereby a pest infestation reaches levels considered economically unacceptable, leading to a decision to engage in pest control. The concept of IPM however has been influenced by the chemical industry over the decades since its original definition and recent data indicates that it has failed to stop toxic pesticide use. The original intent of IPM was the adoption of preventive practices and utilization of nonchemical tools, placing pesticide use as a last resort when pest control is warranted. However, farms that self-identify as IPM operations use pesticides, sometimes as the first line of defense, while attempting to […]

(Beyond Pesticides, November 22, 2022) Fungus that survive a fungicide application may be able to multiply and thrive, putting plant yields at risk. This finding comes from research recently published by scientists at University of Illinois, focusing on the impact of fungicide use on soybean yields and the disease Septoria brown spot, caused by the fungus Septoria glycines. The research underlines the danger of preventive chemical applications in an attempt to protect yield and shows how precarious pesticide use can be when subject to the complexity seen in field conditions. Scientists began with the intent of analyzing the soybean’s phyllosphere mycobiome, the fungal microbial make-up of the outside of the plant, including all its surfaces above-ground. A field trial was established near Urbana, Illinois, and soybeans plants were separated into four different plots according to their treatment. One group was inoculated with Septoria glycines, another inoculated and sprayed with a fungicide, a third not inoculated yet sprayed with a fungicide, and a final control group neither inoculated nor treated with a fungicide. A range of different analyses were conducted to view changes in the disease development and mycobiome composition over time. Soybean plants that had been inoculated with Septoria showed […]

(Beyond Pesticides, November 21, 2022) Once again, the Environmental Protection Agency (EPA) has registered a new pesticide without performing a thorough review of its impacts on biodiversity as well as threatened and endangered species. Inpyrfluxam was registered in 2020 and only after being sued by the Center for Biological Diversity for failure to comply with the Endangered Species Act (ESA) did EPA commit to completing draft effects determinations by Fall 2022. Once again, EPA’s draft biological evaluation is incomplete and inadequate. EPA is accepting comments on its draft biological evaluation at Regulations.gov.  Tell EPA and Congress that Pesticide Registrations Require Complete Science. The Review of Inpyrfluxam is Incomplete and Inadequate.  The agency’s draft effects assessment is flawed and incomplete. We share the details because it shows that EPA is out of step with the science and its regulatory responsibility when it comes a thorough review for ecosystem effects of pesticides.   The agency used fish early life stage (ELS) tests to estimate chronic fish toxicity. This is inappropriate. The fish ELS is a sub-chronic test of sensitive life stages. Although it is often used as a surrogate or predictor of chronic toxicity, it does not adequately address potential adverse effects on reproduction or transfer of the test chemical to eggs/offspring […]

(Beyond Pesticides, November 18, 2022) A new meta-analysis, from researchers at Mount Sinai Medical Center, Hebrew University of Jerusalem, and the University of Copenhagen, among others, finds that the drop in global sperm count is accelerating and the problem has become global. The study shows that sperm count (until this study measured largely in North America, Europe, and Australia) has dropped by 51.6% from 1973 through 2018, and that the rate of decline is gaining speed worldwide.  A primary culprit, among a plexus of factors, is widespread exposure to toxic chemicals, including pesticides, in the environment. Beyond the implications for individuals and families, this global decline in sperm counts has the potential for population-level impacts and, according to Dr. Shanna Swan, an expert environmental–reproductive epidemiologist, could mean that “in the coming decades, large swaths of the global population of men could be subfertile or infertile.” Beyond Pesticides has long highlighted the relationship between reproductive anomalies and toxic pesticides, particularly the role of endocrine-disrupting (ED) compounds. Most recently, we covered a meta-study on pesticides and fertility that “finds exposure associated with lower semen quality, DNA fragmentation, and chromosomal abnormalities.” The new study is covered in Environmental Health News (EHN). From 1972 […]

(Beyond Pesticides, November 17, 2022) A report published in Toxicology and Applied Pharmacology finds organophosphate (OP) insecticides and the coronavirus (SARS-CoV-2/Covid-19) illicit similar damage to the heart and co-occurring exposure to both can escalate cardiac (heart) injury. Previous research suggests OPs may increase the ability of SARS-CoV-2 to cause COVID-19, especially among vulnerable individuals with underlying medical conditions. OPs have a wide range of biological uses—from insecticides to flame retardants—that make these chemicals ubiquitous, significantly contributing to ecosystem contamination. These compounds have a global distribution, with evaporation and precipitation facilitating long-range atmospheric transport, deposition, and bioaccumulation of hazardous chemicals in the environment. OPs are highly toxic, originating from the same compounds as World War II nerve agents, and residues are consistently present in human and animal blood, urine, tissues, and milk. Moreover, OPs are one of the leading causes of poisoning globally. Therefore, it is vital to understand how OP exposure will impact human health in conjunction with other immunologically compromising diseases like COVID-19. Cardiovascular diseases are among the leading causes of death globally. Additionally, heart conditions are one leading cause of disability in the U.S., as research demonstrates environmental pollutant exposure can increase the risk of developing cardiovascular disease, including stroke, heart attack, heart failure, atrial fibrillation, and cardiac […]

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

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