(Beyond Pesticides, August 7, 2018) At the same time that a new analysis by California’s Department of Pesticide Regulation (DPR) finds current neonicotinoid uses in the state expose bees to residue levels known to cause harm, the Trump administration has reversed a 2014 U.S. Fish and Wildlife (FWS) decision to ban neonicotinoids on National Wildlife Refuges. In 2014, newly passed state legislation required DPR to study the impacts of neonicotinoids (imidacloprid, thiamethoxam, clothianidin, and dinotefuran) and adopt control measures to protect sensitive pollinator health within two years. In its report, released last month, DPR finds the highest risk to bees is posed by use of two neonicotinoids, thiamethoxam and clothianidin, on cereal grains like corn, wheat, rice, and barley. The seeds of these crops are typically coated with neonicotinoids before planting, where residues persist in the pollen and nectar. Although these findings are not surprising and have been documented in the scientific literature, California’s analysis indicates neonicotinoids can cause much broader harm, including to pollinators commonly found on many types of vegetables, cereal grains, tree nuts, fruits and tobacco. Shortly after a decision in the Pacific Region, FWS announced that all National Wildlife Refuges would join in the phase-out of neonics (while also phasing out genetically […]

(Beyond Pesticides, August 1, 2018) According to new research from the University of Sussex, bees living in suburban habitats are still being exposed to high levels of neonicotinoid pesticides. Even though there is a European Union (EU) ban on these chemicals, the ban focuses on agricultural and not residential applications. The study’s authors are urging gardeners to forgo the use of these pesticides in favor of more holistic, pesticide-free approaches. The authors of the study say it is the first of its kind to highlight the risk to bees in urban areas posed by garden use of pesticides. Entitled Monitoring neonicotinoid exposure for bees in rural and peri-urban areas of the UK during the transition from pre- to post-moratorium, the study sampled pollen and nectar from bumblebee colonies in rural and peri-urban habitats in three UK regions–Stirlingshire, Hertfordshire, and Sussex over three years. Sampling began prior to the ban (2013), during the initial implementation when some seed-treated winter-sown oilseed rape was still grown (2014), and following the ban (2015). Honey bee colonies in rural habitats were also sampled to compare species-level differences between bumblebees and honey bees. Not surprisingly, the researchers find pesticide contamination in more than 50 percent of the samples, […]

(Beyond Pesticides, June 29, 2018) It is widely known that pollinators are in trouble. In light of this, Kroger (which includes numerous other grocery chains, like Harris Teeter) announced in a press release last week — during National Pollinator Week —  a phase-out by 2020 of live garden plants treated with the insecticides most closely associated with the decline of bee populations, the neonicotinoids. In May, Costco updated its pollinator policy, which “encourages” its suppliers of garden plants, fruits, and vegetables to limit the use of bee-toxic pesticides and adopt ecological practices. The company in 2016 announced a policy to encourage suppliers to change their pesticides. In a statement that has broad implications for pollinator and environmental protection, Kroger included the following statement about organic food in its press release: “Kroger also offers one of the largest organic produce departments in America, which is desirable for customers looking to minimize potential exposure to synthetic pesticides. Representing nearly 20 percent of America’s annual organic produce business, Kroger sales reached $1 billion in 2017. A dedicated procurement team partners with more than 300 organic produce growers and suppliers every year to bring customers a growing selection of organic fruits and vegetables.” Costco is also […]

(Beyond Pesticides, June 22, 2018) Mosquito misters pose a threat to human health. They also harm bees and other flying pollinators and are the least effective way to deal with biting mosquitoes. These devices are typically placed outdoors and spray insecticides –mostly in an attempt to control mosquitoes.  In May, the Connecticut state legislature voted to ban the use of residential pesticide misting systems. Urge your Governor and state legislators to ban pesticide misters. In addition to the threat to people’s health, misters harm pollinators who may be foraging in an area where the devices are used. Studies find that sublethal concentrations of synthetic pyrethroids significantly reduce bee fecundity and decrease the rate at which bees develop to adulthood and reproduce. Field and laboratory studies using pyrethroids have consistently documented decreases in foraging activity and activity at the hive entrance after exposure. While pesticides are regulated by the U.S. Environmental Protection Agency (EPA), pesticide misters and other application devices are not subject to EPA oversight, leaving states with the authority to control their use. Connecticut appears to be the first state to restrict pesticide misting machines through legislation. The state of New York took an administrative approach to regulating these devices, as the commissioner of the […]

(Beyond Pesticides, June 20, 2018) Bumblebee queens that wake up from hibernation to a neonicotinoid-contaminated, monofloral landscape take longer to set up their nest and die-off at higher rates, according to new research from the University of California, Riverside (UCR) published in the journal Proceedings of the Royal Society B.  While this is the first study to evaluate multiple stressors – pesticide exposure and a monotypic diet – on bumblebee pollinators as they initiate a new colony, it is far from the first to conclude that the neonicotinoid class of insecticides result in unacceptable adverse impacts to insect pollinators. With Pollinator Week 2018 underway, advocates say it is time that the U.S. catches up to the European Union and Canada and starts to ban the use of bee-toxic neonicotinoid insecticides. Bumblebee queens only live long enough to produce one colony. After establishing a colony over the spring and summer months, by fall a new queen hatches and the old queen dies. The new queen leaves the nest and mates, then goes underground to seek shelter and hibernate over the winter. If she makes it through the winter, the single queen will then emerge in spring to begin her own colony […]

(Beyond Pesticides, June 19, 2018) Some 200 members of a French beekeeping cooperative in the northern Aisne region have sued Bayer — on the same day the giant chemical company’s acquisition of Monsanto was finalized — after discovering that their honey was contaminated with toxic glyphosate, a known endocrine disruptor and probable human carcinogen (according to the World Health Organization’s International Agency for Research on Cancer). Monsanto is the long-time manufacturer of Roundup, the popular glyphosate pesticide; Bayer now owns not only the company, but also, the liabilities that come with it, including the “Monsanto” name. Environmental activists had denounced the merger, which creates an agrichemical leviathan that promotes use of chemical herbicides and genetically engineered/modified (GE/GMO) seeds. The beekeepers’ suit was filed in early June after Famille Michaud, a large French honey marketer, detected glyphosate contamination in three batches from one of the coop’s members — whose hives happen to border large fields of rapeseed, beets, and sunflowers. Glyphosate is commonly used in French agriculture; President Emmanuel Macron has vowed to ban its use by 2021. Emmanuel Ludot, a lawyer for the cooperative, is looking for an outcome that includes mandated investigation of the extent of glyphosate contamination of honey, and […]

(Beyond Pesticides, June 18, 2018) At the start of National Pollinator Week, Beyond Pesticides today released its new video, Seeds that Poison –to broaden public understanding of the devastating adverse effects of pesticides on the health of pollinators (bees, birds, butterflies, and other organisms), and the solution in the organic management of agriculture, parks, playing fields, gardens, and lawns. Hazardous pesticides tied to the decline of honey bees and native bees are not permitted in certified organic food production and numerous policies adopted by local governments across the U.S. The accumulated studies and data have found that honey bees and other pollinators, such as native bees, butterflies and birds, are in decline. Scientists studying the issue have identified several factors that are contributing to bee decline, including pesticides, parasites, improper nutrition, stress, and habitat loss. (See Beyond Pesticides’ What the Science Shows.) Pesticides have been identified in the independent scientific literature as a major contributing factor. Pesticides in the neonicotinoid (neonic) chemical class have been singled out as major suspects due to their widespread use as seed coatings, high toxicity to bees, “systemic” nature –neonic chemicals move through the plant’s vascular system and are expressed in pollen, nectar, and guttation droplets– […]

(Beyond Pesticides, June 15, 2018) In recognition of the importance of pollinators and biodiversity to a healthy environment and healthy people during National Pollinator Week, June 18-24, Beyond Pesticides announces a week of activities and actions. Monday (June 18) Watch and share the new short-film “Seeds that Poison.” To kick off Pollinator Week 2018, Beyond Pesticides is releasing a new video highlighting the hazards associated with a major use of bee-toxic pesticides – seed coatings. Please watch and share with friends and family! Click here to watch Seeds that Poison. After distributing the film, please contact your state elected officials to ask that they act to protect pollinators. (Connecticut and Maryland have taken action.) Folks in the DC area can also attend a “Pollinator Forum” to learn about pollinators and celebrate them. The event is taking place at the Tabard Inn (Monday, June 18) and will feature Beyond Pesticides’ Science and Regulatory Director Nichelle Harriott. Click here to purchase tickets. Tuesday Plant pollinator habitat. Explore Beyond Pesticides’ resources to find ideas for native plantings or sources of untreated flowers and dig your pollinator-friendly garden today. Use the Bee Protective Habitat Guide and or Pollinator-Friendly Seed Directory to help! Wednesday Take local action. […]

(Beyond Pesticides, June 7, 2018) Health Canada is proposing to phase out a number of uses of neonicotinoids in order to mitigate risks to pollinators. The agency has completed its review of clothianidin and thiamethoxam — two neonicotinoids that have been linked to pollinator decline and finds risks of concern for bees. However, these measures do not go as far as those recently made in the European Union, but further than label restrictions issued by the U.S. Environmental Protection Agency (EPA). Health Canada concluded its Pollinator Re-evaluation for clothianidin and thiamethoxam after examining hundreds of laboratory and outdoor field studies that examined the possible effects on bees from wide-ranging situations. The agency finds that uses of these neonicotinoids have “varying degrees of effects on bees,” and that some uses “may pose a risk of concern to bees.” However, instead of a complete ban of the neonicotinoids, the agency is proposing mitigation measures to minimize potential exposure to bees, which includes the phase-out of many uses and certain additional product label statements. Clothianidin will see a phase-out of the following uses: Foliar application to orchard trees and strawberries, and Foliar application to municipal, industrial and residential turf sites. There will also […]

(Beyond Pesticides, June 6, 2018) By the close of 2018, three top neonicotinoid (neonic) pesticides, linked to the worldwide decline in bee populations, will be banned for outdoor use in the European Union (EU), based on the General Court of the European Union’s (GCEU) ruling last month. The GCEU, the equivalent of the U.S. Supreme Court, ruled in favor of taking precautionary action to protect pollinators from clothianidin, imidacloprid, and thiamethoxam. This ruling allows for the limited use of neonic-treated seeds grown in permanent greenhouses where contact with bees is not expected. In its lawsuit, multinational seed and chemical companies, Syngenta and Bayer –manufacturers of the neonics in question– argued unsuccessfully that the pesticides do not necessarily harm bees if farmers use them according to label instructions. Syngenta also sought compensation of approximately $435 million to offset market losses resulting from the ban, but that, too, was denied. In rejecting the arguments of Syngenta and Bayer, the high court aligned itself with the European Food Safety Authority (EFSA) and its assessment of the harm caused by the widely used pesticides. EFSA’s updated assessment, released in February of this year, provided convincing evidence that neonics represent a risk to wild bees and […]

(Beyond Pesticides, May 1, 2018) On April 27, 2018, European Union (EU) member states backed a proposal to further restrict uses of bee-toxic neonicotinoids finding the pesticides’ outdoor uses harm bees. These restrictions go beyond those already put in place in 2013, and now all outdoor uses of clothianidin, imidacloprid, and thiamethoxam will be banned. Uses will only be allowed in permanent greenhouses where contact with bees is not expected. This historic move in Europe comes as the U.S. Environmental Protection Agency (EPA) still drags its feet on finding neonicotinoids are too toxic for bees and other organisms and bans their use. According to the European Commission, the protection of bees is an important issue since it concerns biodiversity, food production, and the environment. An EU committee approved the plan to tightly restrict the use of the insecticides, acting upon scientific advice this past February from the European Food Safety Authority (EFSA) to tighten existing restrictions and protect bees, crucial pollinators. EFSA analyzed over 1,500 studies from academia, beekeeper associations, chemical companies, farmer groups, non-governmental organizations, and national regulators, and concluded that neonicotinoids do pose risks to honey bees and wild pollinators. In 2013, the EU placed a ban on […]

(Beyond Pesticides, April 25, 2018)  A class-action lawsuit against two manufacturers of neonicotinoid insecticides is moving ahead in Quebec, Canada after an appeal to block the case by the Canadian government and the chemical companies, Bayer and Syngenta, was dismissed. In February 2018, the case, brought by a beekeeper, was allowed to proceed to trial by the Quebec Superior Court. Quebec queen bee breeder, Steve Martineau, conducted tests on water and his dead and dying bees and found traces of neonicotinoids. His suit alleges that Bayer and Syngenta were negligent in the manufacture and sale of neonicotinoids in Quebec, and are responsible for damages that he and other class members suffered under Article 1457 of the Quebec Civil Code. Bayer and Syngenta challenged the application on a number of grounds including the assumption that they had manufactured the neonicotinoids which killed Martineau’s bees. The class in this case was authorized for all persons in Quebec who own or owned bees in the affected area since 2006. Mr. Martineau estimates he has lost about $20,000 a year to present due to the effects of neonicotinoids on his bee population (Martineau v. Bayer CropScience Inc. CALN/2018-007) “We’re suing on behalf of Quebec beekeepers whose bees were […]

(Beyond Pesticides, March 26, 2018) Tell your state AG to join the investigation of the merger of Bayer-Monsanto, the manufacturer of genetically engineered seeds tolerant of its herbicide glyphosate (aka Roundup®), and Bayer, the manufacturer of neonicotinoid insecticides responsible for pollinator declines, including imidacloprid and clothianidin. The giant seed and pesticide company that would be created by this merger would be a disaster for pollinators, people, and the environment. Farmers overwhelmingly think this mega-merger is a bad idea –a new survey and white paper were released that demonstrate widespread opposition of farmers to this merger. According to the poll, which was conducted by a coalition of farm organizations, 93 percent of farmers surveyed oppose it. More than one million Americans have called on the Department of Justice to stop it. Investigations are ongoing in both the EU and the U.S. Your state attorney general could play a key role in this fight by joining the investigation. Tell your state AG to join the investigation of the Bayer-Monsanto Merger! If this merger goes through, the new company would be the world’s largest vegetable seed company. It would control seeds for many of the crops we eat regularly — including broccoli, carrots, and onions. It would also be the largest manufacturer […]

(Beyond Pesticides, March 20, 2018) Regulations that separate ingredients in pesticide products as either “other/inert” or “active” have no scientific basis, according to a new review of the toxicity of formulated pesticide products published in the journal Frontiers in Public Health. Despite widespread awareness that “other” or “inert” pesticidal ingredients present toxicity concerns, only “active” ingredients undergo a full risk assessment, and pesticide products containing both active and inert ingredients are not tested in formulation before being sold to the public. Using glyphosate and neonicotinoid based products as examples, the study recommends sweeping changes to the way pesticide formulations are regulated in the Western world. Inert, or other ingredients –not disclosed on pesticide product labels, are often adjuvants that are added to a pesticide formulation to modify the effect of the active ingredient. However, they can also be sold separately and used in agriculture where pesticides are often “tank mixed” on site before application. Adjuvants take many forms, including surfactants, dyes, stabilizers, propellants, emulsifiers, solvents, antifoaming agents, and still other uses. Surfactants, likely the most common adjuvant, are added to a pesticide formulation in order slow the degradation time or improve the penetration of the active ingredient on a target […]

(Beyond Pesticides, March 14, 2018) The annual count of Monarch butterflies overwintering in Mexico shows declines from last year’s numbers—a 15 percent decrease –according to figures from an official Mexican government count in the winter of 2017. These numbers underscore how at risk the iconic animal is, with a possible collapse of migration if populations are critically low. Monarch butterflies (also known as Eastern Monarchs) embark on an impressive migration every year. Roughly 99 percent of all North American monarchs migrate each winter to oyamel fir forests on 12 mountaintops in central Mexico. Scientists estimate the population size by measuring the area of trees turned orange by the clustering butterflies. But for the second year in a row, its numbers are declining — 2.48 hectares of occupied winter habitat is down from 2.91 hectares last winter. Apart from partial rebounds in the winters of 2001 and 2003, numbers have gone down steadily since 1996. Overall monarchs have declined by more than 80 percent over the past two decades. Earlier this year, Western Monarchs – those found west of the Rocky Mountains – overwinter in coastal California forests, were also found to be declining at an alarming rate, with scientists and conservation groups […]

(Beyond Pesticides, March 12, 2018) European Regulators Confirm Neonicotinoids Harm Bees, Increasing Likelihood of Continent-Wide Ban A comprehensive assessment released last week by the European Food Safety Authority (EFSA) confirmed that neonicotinoids, the most widely used class of insecticides in the world, pose risks to honey bees and wild pollinators. EFSA analyzed over 1,500 studies from academia, beekeeper associations, chemical companies, farmer groups, non-governmental organizations, and national regulators. EFSA’s risk assessment provides a definitive, independent conclusion that overall, continued use of these chemicals risks the long-term health of pollinator populations. Tell Your Governor to Ban Neonicotinoid Insecticides “The availability of such a substantial amount of data as well as the guidance has enabled us to produce very detailed conclusions,” said Jose Tarazona, PhD, head of EFSA’s Pesticides Unit in a press release. This is EFSA’s second comprehensive evaluation of the three most commonly used neonicotinoids: imidacloprid, clothianidin, and thiamethoxam. Earlier research finalized in 2013 led the European Union (EU) to ban use of the three neonicotinoids on agricultural flowering crops. The new assessment applies EFSA guidance to assessing risks to bees and on the initial review. It includes literature not only on honey bees, but also on wild pollinators, including bumblebees […]

(Beyond Pesticides, March 2, 2018) Neonicotinoids, the most widely used class of insecticides in the world, do pose risks to honey bees and wild pollinators, according to a comprehensive assessment released last week by the European Food Safety Authority (EFSA). Encompassing an analysis of over 1,500 studies from academia, beekeeper associations, chemical companies, farmer groups, non-governmental organizations, and national regulators, EFSA’s risk assessment provides a definitive, independent conclusion that overall, continued use of these chemicals risks the long-term health of pollinator populations. After delaying a vote that would ban all outdoor uses of neonicotinoids in December in anticipation of EFSA’s assessment, the European Commission will revisit the issue as soon as March 22. “The availability of such a substantial amount of data as well as the guidance has enabled us to produce very detailed conclusions,” said Jose Tarazona, PhD, head of EFSA’s Pesticides Unit in a press release. This is EFSA’s second comprehensive evaluation of the three most commonly used neonicotinoids: imidacloprid, clothianidin, and thiamethoxam. Earlier research finalized in 2013 led the European Union (EU) to ban use of the three neonicotinoids on agricultural flowering crops. The new assessment builds upon the initial review, and includes literature not only on […]

(Beyond Pesticides, March 1, 2018)  A comprehensive review of notorious, bee-killing neonicotinoid insecticides finds that crop yields and on-farm profit can be maintained and improved by replacing these toxic chemicals with alternative pest management strategies. The new study is part of an ongoing update to the 2014 Worldwide Integrated Assessment undertaken by an international team of scientists called the Task Force on Systemic Pesticides. The results of this review point to the need for strong action against these chemicals by all levels of government. “Regulators need to realize that if we want sustainable agricultural practices, we need a more restrictive regulatory framework and programs to support farmers making the switch,” said Task Force co-chair and scientist at France’s National Scientific Research Centre Jean-Marc Bonmatin, PhD, in a press release. “Our findings on the availability of alternatives will be particularly relevant where new restrictions on neonics are being considered.” The Task Force reviewed 200 studies on systemic insecticides, looking at their use and pest resistance in annual and perennial crops, the viability of alternative pest management techniques, and the potential to implement alternative forms of crop insurance to cover risks, rather than spray expensive insecticides. For perennial crops, researchers focus on the […]

(Beyond Pesticides, February 26, 2017) U.S. Representatives Earl Blumenauer (D-OR) and Jim McGovern (D-MA) reintroduced the Saving America’s Pollinators Act (H.R. 5015), which suspends the registration of certain neonicotinoid insecticides until the U.S. Environmental Protection Agency conducts a full scientific review that ensures these chemicals do not harm pollinators. Last week, Beyond Pesticides joined Rep. Blumenauer and other experts from environmental, conservation, whistleblower, and farmworker health groups on Capitol Hill to urge Congress to take action to protect pollinators in the face of ongoing obstruction by an increasingly industry-influenced EPA. Tell your Representative to cosponsor the Save America’s Pollinators Act!“ Pollinators are the backbone of America’s agriculture system. Acting now to protect them and stop their decline is essential to the sustainability of our nation’s food supply,” Rep. McGovern said. “Simply taking the word of the manufacturers that their products are safe is not an option. Consumers need strong oversight. That is why I am proud to join Congressman Blumenauer in demanding the EPA fully investigate the effect that certain harmful pesticides may have on the vitality of our pollinators.” Numerous scientific studies implicate neonicotinoid pesticides as key contributors to the global decline of pollinator populations. EPA’s own scientists have found that […]

(Beyond Pesticides, February 16, 2018) U.S. Representatives Blumenauer (D-OR) and Jim McGovern (D-MA) this week announced plans to reintroduce the Saving America’s Pollinators Act, (previously H.R. 3040) which suspends the registration of certain neonicotinoid insecticides until the U.S. Environmental Protection Agency conducts a full scientific review that ensures these chemicals do not harm pollinators. Beyond Pesticides joined Rep. Blumenauer and other experts from environmental, conservation, whistleblower and farmworker health groups on Capitol Hill to urge Congress to take action to protect pollinators in the face of ongoing obstruction by an increasingly industry-influenced EPA. “Pollinators are the backbone of America’s agriculture system. Acting now to protect them and stop their decline is essential to the sustainability of our nation’s food supply,” Rep. McGovern said. “Simply taking the word of the manufacturers that their products are safe is not an option. Consumers need strong oversight. That is why I am proud to join Congressman Blumenauer in demanding the EPA fully investigate the effect that certain harmful pesticides may have on the vitality of our pollinators.” Numerous scientific studies implicate neonicotinoid pesticides as key contributors to the global decline of pollinator populations. EPA’s own scientists have found that neonicotinoids pose far-reaching risks to […]

(Beyond Pesticides, January 24, 2018) Poor nutrition coupled with exposure to a notorious class of insecticides known as neonicotinoids act synergistically to significantly reduce the survival of honey bees and their colonies, according to research published by scientists from University of California, San Diego (UCSD). This is the first study to delve into the real-world effects pesticide exposure can have on honey bees also subject to nutritional stress, a common occurrence in the wild. The outcome of this research highlights the weaknesses of the U.S. Environmental Protection Agency’s (EPA) testing regime for registering pesticides, which does not account for the complex ecology surrounding catastrophic declines in honey bee and other wild pollinator populations. UCSD scientists looked at two of the most popular neonicotinoids, chlothianidin and thiamethoxam, to investigate how realistic levels of exposure to the chemicals interacted with varying levels of available food. High and low levels of both chemicals, 1/5 and 1/25 of the LD50 (amount at which 50% of honey bees exposed would die) were added to sugar syrup solution containing a range of different nutrition levels. Sugar syrup, which mimics nectar and honey, is a critical source of carbohydrates for honey bees. The bees studied were either […]

(Beyond Pesticides, January 18, 2018) Research published in early January 2018 has shown that — despite a partial ban on neonicotinoid insecticides instituted in 2014 — 25% of British honey is still contaminated with residue of these “potent, bee-killing” pesticides. The partial ban, which extended to flowering crops, such as oilseed rape (from which canola oil is made), was instituted by the European Union (EU) in response to evidence of serious threats to bee populations. Samples for this study came from beekeepers and were each from a single location. After the partial ban went into effect, scientists had seen some reduction in the contamination rate of neonicotinoids in honey, from greater than 50% prior to the ban. This study demonstrates that these powerful pesticides nevertheless remain common in agricultural areas, posing serious threats to bees (and other pollinators). This discovery is likely to accelerate pressure on the EU to ban all outdoor use of neonicotinoids, with a vote coming perhaps as soon as in the next few months. “While the frequency of neonicotinoid contaminated samples fell once the EU ban was in place, our data suggest that these pesticides remain prevalent in the farming environment,” said Ben Woodcock, of the UK’s […]

(Beyond Pesticides, January 12, 2018) Honey bees display a concerning attraction to the herbicide glyphosate and the fungicide chlorothalonil at certain concentrations, new research from scientists at the University of Illinois (UIL) reveals. Results are reminiscent of a 2015 study published in the journal Nature, which found that honey bees display a preference for foods treated with neonicotinoids, a class of insecticides implicated in global pollinator declines. Since the crisis became public knowledge in 2006, managed honey bees have experienced unsustainable levels of colony loss, and one in four species of native bees in North America and Hawaii are at risk of extinction. This new research adds to growing concerns that, while neonicotinoids continue to play a primary role in the pollinator crisis, their elimination would still leave a myriad of other toxic chemical threats to the recovery of these critical species, upon which so much of our food supply relies. UIL scientists investigated honey bees’ preference for a range of pesticides as well as a number of naturally occurring chemicals that honey bees would likely encounter in the field. In the experiment, pollinators were put in a large enclosure and allowed to fly to different feeders stocked with either […]