(Beyond Pesticides, June 21, 2021) Pollinator Week reminds us that change is critical to the survival of the planet and that we can take action, both in our households and communities and in the state and federal policy arena.  Here’s how YOU can take action… Create an organic habitat on your own property or a space in the community—such as the library grounds, medians, and rights-of-way. Given that plant starts in many garden centers across the country are grown from seeds coated with bee-toxic neonicotinoid pesticides, or drenched with them, Beyond Pesticides has compiled a comprehensive directory of companies and organizations that sell organic seeds and plants to the general public. Included in this directory are seeds for vegetables, flowers, and herbs, as well as living plants and seedlings. [We are always updating the directory, so send us names of companies that should be added and we will.] Go organic in the management of all your town’s public spaces—parks, playing fields, school grounds, and open space. Check out the information on talking with your neighbors, local organizations, and elected officials about advancing our model local policy. Then you can see what other communities are doing across the country. Also, see the cost […]

(Beyond Pesticides, June 18, 2021) As the U.S. Environmental Protection Agency (EPA) continues to drag its feet on protective regulation of neonicotinoid pesticides, states continue to step up to restrict their use. In April, the Maine legislature passed, and Governor Janet Mills has now signed, a new law that will prohibit use of neonicotinoid pesticides with the “active ingredient[s] dinotefuran, clothianidin, imidacloprid or thiamethoxam used for application in outdoor residential landscapes such as on lawn, turf or ornamental vegetation” [links by Beyond Pesticides]. Though short of an outright ban, this law is a solid step forward for Maine in reining in use of these compounds, which are neurotoxicants widely implicated in pollinator (and other insect, bird, and mammal) harms or declines. Until a federal ban happens, Beyond Pesticides offers guidance on avoiding use of neonicotinoid pesticides through its fact sheet, Managing Pests Safely Without Neonicotinoids, and its Bee Protective web pages. This new Maine law does, however, include exemptions for wood preservation, indoor pest control, use on pets, treatment of structure foundations, and controlling invasive insect pests, such as the Asian long-horned beetle, emerald ash borer, and hemlock wooly adelgid. The statute leaves other large loopholes that will permit continued use […]

(Beyond Pesticides, May 14, 2021) In a prime example of cart-before-the-horse, greenwashing, or perhaps “beewashing,” a British company has badly missed the mark in its latest attempt to market a product while “doing good” and generating goodwill with customers. As The Guardian reports, Marks & Spencer, the giant United Kingdom (UK) retailer, is releasing 30 million managed honey bees into rural British landscapes in what the company is promoting as an effort to support biodiversity and the beekeeping sector. However, according to experts and environmental advocates, unleashing that many honey bees may well actually harm both wild native bees and honey bees themselves. Critics of the move say this means that wild bees will likely face fiercer competition for already inadequate food sources. Beyond Pesticides adds that these honey bees have been dispatched to the same pesticide-contaminated habitats in which existing bee populations of all kinds face harmful exposures — exacerbating issues surrounding pollinator decline rather than solving them. Marks & Spencer’s Twitter marketing promotes the project in this way: “Did you know that bees contribute to a third of the food we eat? At M&S, we’re introducing more than 30 million bees to our Select Farms to help protect the […]

(Beyond Pesticides, April 29, 2021) Glyphosate-based herbicides (GBHs) are incompatible with sustainable agriculture goals, according to a recent scientific literature analysis by scientists at Tufts University, Massachusetts. Glyphosate is the most commonly used pesticide active ingredient worldwide, appearing in many herbicide formulas, including Bayer’s (formerly Monsanto) RoundupTM. The use of this chemical has been increasing since the inception of crops genetically modified to tolerate glyphosate. However, studies demonstrate glyphosate is the main contributor to human, biotic, and ecosystem harms as toxicities from herbicides are now double what it was in 2004.  The National Academy of Sciences identifies four goals of sustainable agriculture—productivity, economics, environment, and social well-being for future generations. However, pesticides like glyphosate are ubiquitous in the environment, putting the health, economy, and food/resources for future generations at risk. Therefore, research like this is vital for understanding how chemical use can undermine sustainable agriculture goals to protect humans, animals, and environmental health. Researchers note, “[W]hether or not GBHs are viewed as essential or unessential to contemporary agriculture, and notwithstanding their role in non-tillage agriculture, this study shows that glyphosate-based herbicides do not reach the bar of agricultural sustainability, with respect to humans and the environment, making the system they are part of unsustainable.” Researchers thoroughly examined […]

(Beyond Pesticides, April 20, 2021) Roundup products manufactured by Bayer-Monsanto kill exposed bumblebees at high rates, according to a new study published in the Journal of Applied Ecology, which points to undisclosed inert ingredients (those that typically make up a majority of the product formulation) as the primary culprit. Roundup products have become synonymous with their main active ingredient glyphosate, but Bayer-Monsanto has been quietly reformulating its flagship product with different herbicides in a likely attempt to rebrand as glyphosate cancer lawsuits drag down the company’s performance. The new study reveals that these new Roundup products present the same hazards to pollinators as glyphosate-based formulations, raising important questions about the pesticide regulatory process. Researchers based at Royal Holloway University of London, UK conducted the present study to better understand the hazards posed by herbicides often characterized as “bee safe” to the public. To do so, 10 healthy bumblebee (Bombus spp) colonies were retained, split into small groups, and sprayed with a particular herbicide. Four different herbicide products were employed, including: i) Fast Action Roundup® Ready‐To‐Use (containing glyphosate); ii) Roundup® Speed Ultra (containing acetic acid and no glyphosate); iii) Weedol® Gun! Rootkill Plus (containing glyphosate) and; iv) Roundup® ProActive (contains glyphosate […]

(Beyond Pesticides, April 16, 2021) Recent research, published in Environmental Pollution in late 2020, examines levels and persistence of pesticide pollution in recreational lakes. The study finds: (1) concentrations of the neonicotinoid imidacloprid at levels exceeding ecotoxicity limits for aquatic invertebrates in a recreational lake that receives predominately urban runoff, and (2) that pesticide residues persist in the studied lakes throughout the growing season. Based on their findings, the scientists emphasized the importance of stricter regulation of insecticide compounds, and of better education about their impacts. Beyond Pesticides maintains that neonicotinoid pesticides should be banned for several reasons, not least of which is the extreme damage they cause to pollinators. The goal of the study was to evaluate potential ecosystem exposure to pesticide contamination in Midwestern recreational lakes, as well as the persistence of pesticide residues in those water bodies over the course of the growing season. Study authors hypothesized that watersheds with significant agricultural land uses would have higher concentrations of pesticides compared to largely urban and herbaceous watersheds. This research, out of the University of Nebraska–Lincoln and the University of Kentucky, looked to evaluate the occurrence of neonicotinoid and organothiophosphate insecticides, and some fungicides, in three lakes with differing […]

(Beyond Pesticides, April 13, 2021) A new study is making it increasingly clear that current laws are not protecting wild, ground nesting bees from the hazards of neonicotinoid insecticides. According to research conducted under a grant from the U.S. Department of Agriculture’s Sustainable Agriculture Research and Education (SARE) projects, Blue Orchard Mason Bees (Osima spp) are at particular risk from pesticide-contaminated soil they use to create their nest. Authors of the study note that with honey bees already in decline, pollination services provided wild managed bees like Mason bees are growing in importance. “Wild bees such as Osmia are becoming increasingly popular as managed pollinators in many systems, as there is growing concern that honeybees may not be able to continue to meet the increasing demands of agricultural pollination if these trends continue,” the study reads. The study looked at three overarching threats to mason bee populations, aiming to identify risks from pesticide contaminated soil used as a nest, effects on larvae exposed to contaminated soil, and whether female mason bees could determine the difference between contaminated and uncontaminated soil. “Imidacloprid is a neonicotinoid, which is a group of pesticides that are highly toxic to bees,” said Christine Fortuin, PhD, […]

(Beyond Pesticides, April 8, 2021) Pesticide use threatens aquatic and terrestrial invertebrates and plants more than ever, despite declining chemical use and implementation of genetically engineered (GE) crops in the U.S., according to a University Koblenz-Landau, Germany study. Since the publication of Rachel Carson’s Silent Spring (1962), many environmental agencies have banned the use of pesticides like organochlorines, organophosphates, and carbamates for their devastating toxic—sometimes lethal—effects, particularly on vertebrates, including humans. However, this ban created a pathway for a new generation of pesticides (e.g., neonicotinoids, pyrethroids) to take hold. Although these pesticides are more target-specific, requiring lower chemical concentrations for effectiveness, they have over double the toxic effects on invertebrates, like pollinators.  Invertebrates and plants are vital for ecosystem function, offering various services, from decomposition to supporting the food web. Furthermore, invertebrates and plants can act as indicator species (bioindicators) that scientists can observe for the presence and impact of environmental changes and stressors. Therefore, reductions in invertebrate and plant life have implications for ecosystem health that can put human well-being at risk. Study lead author Ralf Schulz, PH.D., notes, “[This study] challenge[s] the claims of decreasing environmental impact of chemical pesticides in both conventional and GM [genetically modified or genetically engineered (GE)] crops and […]

(Beyond Pesticides, March 29, 2021) New data on the hazards of neonicotinoid insecticides calls for urgent regulatory action. The same pesticides that are linked to the worldwide decline of insect pollinators also present significant risks to their avian counterparts, hummingbirds. Widely known for their nectar-fueled hovering flight powered by wings beating up to 80 times per second, hummingbirds display unique reactions to toxic pesticides. Research by scientists at the University of Toronto finds that hummingbirds exposed to systemic neonicotinoid insecticides for even a short period of time can disrupt the high-powered metabolism of this important and charismatic animal. Tell EPA and Congress to save the hummingbirds by suspending use of neonicotinoid insecticides and supporting the transition to organic practices. While hovering, a hummingbird consumes calories faster than any other bird or mammal. That’s why the finding that exposure to the neonicotinoid insecticide imidacloprid slows metabolism up to 25% is so disturbing. Systemic pesticides like imidacloprid and other neonics are transported throughout the plant, including nectar. Findings on the danger neonicotinoids pose to hummingbirds decades after the chemicals were first permitted to be used in the environment, and by independent scientists, not regulatory agencies, is indicative of a regulatory approach that fails […]

(Beyond Pesticides, March 24, 2021) The worst predictions of scientists and advocates are playing out in the fields of eastern Kenya, as chemical-intensive farming there threatens the future of food production. According to Radio France Internationale (RFI), Kenyan farmers have resorted to pollinating their crops by hand after pesticide use killed off most of the pollinators they rely on. “We are mostly affected by pesticides because they have killed most pollinators which pollinate our crops—this has affected our food production compared to previous years,” said Joseph Mbithi, a farmer in Mbakoni village, Makueni County, Kenya to RFI. Crop yields in the region have tapered off over the last two years, and farmers like Mr. Mbithi are pointing to pesticide use as the cause, citing past reliance on the herbicide Roundup (glyphosate) and the organophosphate insecticide malathion. “Pollinators such as bees and butterflies are not around due to chemicals which we spray in our farms,” he told RFI.   As a result, farmers are using toothbrushes and sponges as a substitute for the buzzing work of local pollinators. And it’s more complicated than one may think. ‘’The flowers are different in shape and are different in sizes. The male one is […]

(Beyond Pesticides, March 19, 2021) As reported by VTDigger, Vermont’s Endangered Species Committee recently took action to uphold the state’s endangered species law. The committee announced that a mosquito control program in the Champlain Valley, which uses the toxic pesticides malathion and permethrin, is threatening five species of endangered bats — all of which are on Vermont’s list of threatened and endangered species. The committee voted unanimously to recommend to the state Secretary of the Agency of Natural Resources that the spraying program in the Brandon, Leicester, Salisbury, Goshen, Pittsford Insect Control District be allowed only via special permit. Learn about safer mosquito management and insect-borne diseases at Beyond Pesticides website pages. The bats inhabit the Insect Control District’s five towns, which are host to important feeding habitat for these creatures, as well as maternal roosting colonies where baby bats are born and raised during the months when the pesticides are typically sprayed. In addition, the nighttime spraying of these compounds along 190 miles of road in these communities hangs in the air for hours, putting nocturnally active bats — who fly through the toxic mist or consume insects contaminated with the chemicals — at risk. Mason Overstreet of Vermont […]

(Beyond Pesticides, March 2, 2021) Populations of solitary ground nesting bees decline after exposure to neonicotinoid insecticides, according to a study published in Scientific Reports late last month. In addition to ground-nesting bees, neonicotinoids have been shown to harm butterflies, hummingbirds, songbirds, aquatic species and mammals, including humans. As independent science continues to look beyond the effects of these systemic chemicals on honey and bumblebees, advocates maintain that it has become increasingly clear that the high hazards presented by neonicotinoids necessitate their complete elimination. “Farmers need to protect their crops from pests, but they also absolutely need to protect pollinators from the unintended effects of pesticides,” said study coauthor Susan Willis Chan, PhD. “The data on this particular [neonicotinoid] product are so clear that there’s really no question about what has to happen. We have to find something else.” Researchers focused their effort investigating how various systemic pesticides effect the hoary squash bee (Eucera pruinosa), a ground nesting bee found throughout North America that feeds entirely on pollen from cucurbits (including squash, cucumber, pumpkin, gourds, etc). The hoary squash bee provides essential pollinator services for these crops throughout the U.S. and Canada. Neonicotinoids and other systemic insecticides are often applied […]

(Beyond Pesticides, February 23, 2021) The same pesticides implicated in the worldwide decline of insect pollinators also present significant risks to their avian counterparts, hummingbirds. Well known for their nectar-fueled hovering flight powered by wings beating over 50 times per second, hummingbirds display unique reactions to toxic pesticides. Research by scientists at the University of Toronto finds that hummingbirds exposed to systemic neonicotinoid insecticides for even a short period of time can disrupt the high-powered metabolism of this important and charismatic animal. Scientists began their experiment by trapping 23 wild ruby-throated hummingbirds and housing them in an animal care facility. One group of birds acted as a control and received no pesticide exposure, while the rest were assigned either low, middle, or high exposure (1 part per million [ppm], 2ppm, and 2.5ppm, respectively) to the neonicotinoid imidacloprid. Scientists determined these amounts based upon probable nectar contamination in the real world. The pesticide was incorporated into the sugar solution provided to the birds over the course of three days. Within two hours of exposure to the pesticides, hummingbird metabolism dropped significantly. While the control group increased energy expenditure between 1% to 7%, the low exposed group displayed a 6% average decline, […]

(Beyond Pesticides, February 22, 2021) Congressional Rep. Joe Neguse, Rep. Alan Lowenthal and Chair of the Natural Resources Subcommittee on Water, Oceans and Wildlife Rep. Jared Huffman have reintroduced their resolution (H.Res. 69: Expressing the need for the Federal Government to establish a national biodiversity strategy for protecting biodiversity for current and future) to create a national biodiversity strategy. Everywhere we turn, we see signs of ecological collapse—wildfires, the insect apocalypse, crashing populations of marine organisms, more and more species at risk, rising global temperatures, unusual weather patterns, horrific storms, and pandemics. Never was a holistic strategy on biodiversity more urgent. Tell your U.S. Representative to cosponsor Rep. Neguse’s National Biodiversity Strategy Resolution, H.Res. 69. The resolution calls for a natio. 69.nal commitment to addressing the biodiversity crisis by establishing a strategy to be developed through an interagency process announced by the president in an Executive Order. The strategy process will encourage agencies to identify and pursue a full range of actions within existing laws and policies and encourage consideration of new ones. It would also promote accountability and progress in addressing the biodiversity crisis through a new quadrennial assessment. “The decline of biodiversity presents a direct threat to the security, […]

(Beyond Pesticides, February 8, 2021) Immediately following his inauguration, President Biden issued an Executive Order (EO) directing the heads of all executive departments and agencies to produce recommendations for improving and modernizing regulatory review, with a goal of promoting public health and safety, economic growth, social welfare, racial justice, environmental stewardship, human dignity, equity, and the interests of future generations. This Executive Order, if effective, will  reverse the historical trend of status-quo regulatory reviews required by the White House Office of Management and Budget (OMB) that typically support vested economic interests of polluters (e.g., petroleum-based pesticide and fertilizer manufacturers). Instead, the President’s EO, Modernizing Regulatory Review, sets the stage for the adoption of agency policy across government to seriously and with urgency confront the climate crisis, biodiversity collapse, and disproportionate harm to people of color communities (environmental racism). Key agencies that can have a systemic effect in meeting these existential challenges are the Environmental Protection Agency (EPA), Department of Interior (DOI), Department of Agriculture (USDA), and Department of Labor/Occupational Safety and Health Administration (DOL/OSHA). But the EO will remain words on a page unless we all across the country exercise our voice and advocate for the changes necessary to end […]

(Beyond Pesticides, January 27, 2021) Lowest ever recorded! That’s the result of a yearly winter monarch count along the California coast, overseen each year by the conservation group Xerces Society. In 2020, citizen scientists counted only 2,000 butterflies. The findings indicate that many on the planet today are likely to experience, within their lifetimes, a world where western monarchs are extinct—unless the federal government acts now. Western monarchs migrate from the Pacific Northwest to overwintering grounds along the California coast, where they remain in relatively stationary clusters that are easy to count.  In the 1980s, roughly 10 million monarchs overwintered along the coast. By the 1990s, that number fell into the low single digits, roughly 1.2 million. Five years ago counts were at roughly 300,000. By 2019, numbers crashed below 30,000. This year’s count saw no monarchs at iconic overwintering sites like Pacific Grove. Other locations, like Pismo State Beach Monarch Butterfly Grove and National Bridges State Park saw only a few hundred. “These sites normally host thousands of butterflies, and their absence this year was heartbreaking for volunteers and visitors flocking to these locales hoping to catch a glimpse of the awe-inspiring clusters of monarch butterflies,” said Sarina Jepsen, […]

(Beyond Pesticides, January 13, 2021) An ethanol processing plant located in the small village of Mead, Nebraska has been using seeds coated in bee-toxic chemicals as part of its production process, according to reporting published in The Guardian earlier this week. The plant, owned by a company called AltEn, may be the only plant in the U.S. producing biofuels with toxic seeds. There is a reason for that, and Mead residents are experiencing the adverse effects of EPA not regulating treated seeds. The prevalence of the use of seed coatings in chemical agriculture has increased over the last several decades, as the pesticide industry works to increase product sales by exploiting a loophole in federal pesticide law. Under FIFRA (the Federal Insecticide Fungicide and Rodenticide Act), a clause known as the “treated article exemption” permits seeds to be coated with highly toxic pesticides without any requirement for the U.S. Environmental Protection Agency (EPA) to assess environmental or public health effects of their use. This allows hazardous pesticides (primarily insecticides and fungicides) to be used indiscriminately with no effective oversight. Research finds that over 150 million acres of farmland are planted with toxic seeds, including nearly four tons of bee-killing neonicotinoids […]

(Beyond Pesticides, November 11, 2020) Neonicotinoid insecticides inhibit honey bee sleep cycles, leading to stress and population declines, according to research from Vanderbilt University, published in Scientific Reports. Although there is already ample evidence of the dangers these systemic insecticides pose to pollinators – as evidenced by recent bans in the European Union and Canada – this new line of investigation add further detail to the ongoing crisis in the pollinator world. “I was thinking about honey bee disappearances and it clicked—if pesticides are killing bees indirectly but we don’t know exactly how, maybe it’s because they’re getting physically lost,” said study coauthor Michael Tackenberg, PhD.  Scientists conducted the experiment using honey bees located on Vanderbilt’s campus, which does not use neonicotinoid insecticides. After returning from pollen collection, forager bees were captured at their hive entrance and moved into monitoring tubes, which were subsequently transferred to the lab. In the lab, scientists were able to control light and dark cycles, and exposed bees to levels neonicotinoids they would likely experience if foraging on contaminated flowers. Foraging bees were first exposed to light/dark at 12/12 cycles, followed by four days of complete darkness, at which time some bees were provided neonics, […]

(Beyond Pesticides, October 29, 2020) Natural areas around farmlands play an important role in managing pest outbreaks and therefore reducing insecticide use, a new study published in the journal Ecology Letters finds. While industrial agriculture puts pressure on farmers to grow single crops on ever larger farms to achieve economies of scale, these monoculture landscapes have significant downsides for public health and the environment. “Overall, our results suggest that simplified landscapes increase vineyard pest outbreaks and escalate insecticide spray frequencies,” said lead author Daniel Paredes, PhD, to the Daily Democrat. “In contrast, vineyards surrounded by more productive habitats and more shrubland area are less likely to apply insecticides.” To investigate the effect of nearby landscapes on farm pest pressure, the team of University of California, Davis scientists used a database created by the government of Spain. For 13 years, the government monitored 400 Spanish vineyards for the presence of the European Grapevine Moth. The moth is a notorious vineyard pest (discovered in California vineyards in 2009), laying three generations of eggs on grapes. In the first generation, the moth larvae will web and feed on flowers. In the second and third, they feed on berries, damaging harvests. Scientists developed a […]

(Beyond Pesticides, October 20, 2020) The additive stress of pesticide exposure and food scarcity leads to significant declines in wild pollinator populations, according to research published by scientists at University of California, Davis. Although it is well known that insect and pollinators populations are at risk from multiple stressors related to industrial agriculture, comprehensive evaluations are a challenging scientific undertaking. “Just like humans, bees don’t face one single stress or threat,” said lead author Clara Stuligross, a PhD. candidate in ecology at UC Davis. “Understanding how multiple stressors interplay is really important, especially for bee populations in agricultural systems, where wild bees are commonly exposed to pesticides and food can be scarce.” To better understand the interplay between these two stressors, researchers designed a field study. Mason bee pollinators were provided cages to nest in, and each stressor was separated out. One set of bees were provided high levels of food availability, while another received scant floral resources. Certain cages within each food level were treated with the product Admire Pro, a Bayer Cropscience insecticide containing the neonicotinoid imidacloprid. Scientists found significant impacts on the factors that deal with mason bees’ reproductive success. This includes the likelihood that a female […]

(Beyond Pesticides, October 9, 2020) A new study demonstrates that emerging “novel” insecticides can cause significant, sublethal harm to beneficial organisms at typical “real life” exposure levels. As neonicotinoid insecticides have come under fire for their terrible impacts on a broad variety of beneficial insects — including their major contributions to the decline of critical pollinators — more such “novel” pesticides are being brought to market in response. The study results, the co-authors say, “confirm that bans on neonicotinoid use will only protect beneficial insects if paired with significant changes to the agrochemical regulatory process. A failure to modify the regulatory process will result in a continued decline of beneficial insects and the ecosystem services on which global food production relies.” Beyond Pesticides would add that the study outcome points, yet again, to the grave recklessness of the pervasive “addiction” to chemical pesticides in agriculture. The solution to this chemical morass is known, doable, and scalable: a transition to organic, regenerative agricultural practices that get everyone off the “toxic treadmill.” Neonicotinoid pesticides (neonics) are the class of chemical pesticides most commonly used worldwide, both on crops and as seed treatments. They are systemic, meaning they infiltrate all tissues of a […]

(Beyond Pesticides, September 30, 2020) Low doses of neonicotinoid (neonic) insecticides are known to disrupt insect learning and behavior, but new science is providing a better understanding of how these effects manifest at a cellular level. Published in the Proceedings of the National Academy of Sciences, this study finds that the neonic imidacloprid binds to brain receptors, triggering oxidative stress, reducing energy levels, and causing neurodegeneration. “Although many studies have shown that low doses of insecticides can affect insect behavior, they have not uncovered whether insecticides trigger changes at the cellular and molecular levels,” said lead author Felipe Martelli, PhD, of Monash University in Melbourne, Australia. “The goal of this work was to have a better understanding of the effects of low doses of the common insecticide imidacloprid at the cellular, physiological and behavioral levels.” Researchers used the fruit fly Drosophilia melanogaster, a common experimental organism, as it contains a number of nicotinic acetylchloline receptors, the primary site of action for imidaclorpid. The neonic binds to these receptors, which regulate a number of physiological processes, such muscle contraction. Binding closes these channels, leading to the range of harm researchers observed through their study. Larval fuit flies were exposed to imidacloprid […]

(Beyond Pesticides, August 26, 2020) Neonicotinoid insecticides damage the health of shrimp and oysters, according to two (1, 2) new studies published by Australian researchers. Although this class of chemicals is best known for its hazardous impacts on pollinator populations, it is becoming increasingly clear that the entire food chain is at risk from continued neonicotinoid use. This study builds on an already established body of literature showing these systemic chemicals poison waterways. Researchers began by collecting samples of shrimp and oysters from growers along the coast, and acclimating the species to laboratory conditions. Both collections were separated into different test groups. Oysters where exposed in their tanks to various concentrations of the neonicotinoid imidacloprid. Shrimp were exposed to imidacloprid through two methods: in their feed, and in their tanks. Each separate test group was further separated into high and low exposures. A control group that did not receive any pesticide exposure was also established in each experiment. For the oyster populations, scientists found a range of negative effects. Imidacloprid inhibits the proper functioning of the enzyme acetylcholinesterase, a well-known impact of many pesticides that results in damage to the nervous system. Detoxification mechanisms are activated, and changes are observed […]