(Beyond Pesticides, December 15, 2016) On Monday, the U.S. Environmental Protection Agency (EPA) released the Certification of Pesticide Applicators final rule on restricted use pesticides (RUP) for publication in the Federal Register. According to EPA, the rule creates a national minimum age requirement of 18 for certified applicators, requires all applicators to renew their certifications every five years, and establishes “first time annual safety training for persons working under the direct supervision of a certified applicator.” States have up to three years to create their programs to implement the new rules for RUPs, and can build upon existing programs if they are equivalent or exceed the updated standards. While EPA’s rule represents a tightening of the restricted use provision, critics have long maintained that all persons handling restricted use pesticides —including those who work for companies that work in and around  homes and communities— should be certified because the supervision requirement does not ensure adequate oversight and protection. Those supervising non-certified applicators are not required to be on site, but, can be in telephone contact. Restricted use pesticides are not available for purchase by the general public, and may only be applied by a certified pesticide applicator or a non-certified […]

(Beyond Pestimcides,  December 14, 2016) Preliminary research presented this week at the British Ecological Society’s annual meeting identifies yet another troublesome connection between the use of neonicotinoid pesticides and the health of bees, a critical pollinator species. The research links neonicotinoid use with an impaired ability of bees to learn to vibrate flowers and shake out the pollen, which is necessary for fertilization in crops like tomatoes and potatoes. This research is consistent with other studies that link neonicotinoid use to reduced learning in bees, as well as other impacts such as those on their colony size and  reproduction, as well as contributions to overall declines. Neonicotinoids (neonics) pesticides are a relatively new class of chemicals that affect plants in a systemic way, moving through the plants vacular system and expressed through pollen, nectar, and guttation droplets.  These pesticides, :which include  imidacloprid, thiamethoxam and clothianidin, have been found by  a growing body of scientific literature  to be linked to Colony Collapse Disorder, a phenomenon where bees experience rapid declines from hive abandonment and bee die-off,  and  pollinator decline in general.  Neonics are associated with  decreased foraging  and navigational ability, as well as increased vulnerability to pathogens and parasites as a […]

(Beyond Pesticides, December 8, 2016) On Monday, the Delaware Department of Agriculture (DDA) released its Managed Pollinator Protection Plan, which allows for the continuation of widespread pesticide use in landscapes across the state. The plan includes voluntary strategies for farmers, beekeepers, landowners and pesticide applicators, but fails to include any recommendations for reducing or eliminating toxic pesticide use. DDA resorts to recommending approaches that include “best management practices,” strategies to increase pollinator forage on public and private lands, and advocating for the use of Driftwatch, an online initiative that focuses on pesticide drift. Driftwatch is a voluntary effort run by the non-profit, Fieldwatch, which, according to its website, was created by Purdue University Agricultural and Biological Engineering and Agricultural Communications departments and  Purdue University Cooperative Extension Specialists  “to help pesticide applicators and specialty crop growers communicate more effectively to promote awareness and stewardship activities to help prevent and manage drift effects.” Like other state pollinator protection plans,  there is little mention of pesticides, despite the fact that neonicotinoids (neonics) are highly toxic, persistent and systemic pesticides that have been widely implicated as a leading factor in pollinator decline. According to environmentalists and beekeepers, little meaningful action has been taken to […]

(Beyond Pesticides, December 1, 2016)  A groundbreaking decision by the European Court of Justice (ECJ) last Wednesday ruled in favor of the environmental nongovernmental organizations (NGOs), Pesticide Action Network Europe (PAN Europe) and Greenpeace Nederland, which had been denied access to industry studies and other information submitted by chemical companies to European regulators on the controversial weedkiller glyphosate  and the bee-toxic insecticide imidacloprid. In the two judgments  regarding public access to underlying environmental effects information on chemicals, ECJ clarified the meaning of “emissions into the environment” and “information on [or which relates to] emissions into the environment” within the EU regulation. The Court found that “emissions into the environment” includes releases from pesticide products or active ingredients contained in these products, as long as the release is possible under realistic conditions of use of this product. It interpreted the “information on emissions into the environment” to cover information relating to the nature, composition, and quantity of those emissions, but also “information enabling the public to check whether the assessment [is correct], as well as the data relating to the medium or long-term effects of those emissions.” This decision will allow for any interested party to obtain industry studies and underlying […]

(Beyond Pesticides, November 29, 2016) Last week, Health Canada announced its intent to cancel nearly all uses of the neonicotinoid insecticide imidacloprid after determining that the chemical poses unacceptable risks to the environment. Although imidacloprid and other pesticides in the neonicotinoid chemical class are  notorious for their harmful impact to pollinators, Health Canada’s decision to eliminate most uses of the chemical is based primarily on the danger it poses to aquatic insects. Environmental groups throughout the world are praising the proposal, but cautioning against the long, three to five year phase out period proposed by the agency. There is concern that the phase out  will permit continued environmental damage, and provide time for other toxic insecticides with similar systemic properties to replace imidacloprid. Advocates are urging U.S. Environmental Protection Agency (EPA) to complete its full assessment of imidacloprid and follow Canada’s lead in eliminating this toxic chemical. Imidacloprid  breaks down slowly in the environment and has a strong propensity to move through soil and into ground and surface water. Health Canada indicates that water quality monitoring data frequently detects the chemical in waterways at levels that poses unacceptable risks to aquatic insects. The agency was unable to attribute the source […]

(Beyond Pesticides, November 1, 2016) A report published this weekend in The New York Times finds that the shift to genetically engineered (GE) crops in the United States and Canada over the past two decades has increased the use of pesticides in North America, and failed to produce any significant yield increases. When the technology was first introduced, multinational agrichemical companies claimed just the opposite would occur- yields would spike and pesticide use would be minimized. As far back as 1998, Beyond Pesticides asked, “Is the failed pesticide paradigm being genetically engineered?” As the Times and numerous other publications before it have found, the answer was and still is yes. The far-ranging expose by the Times on the state of the GE industry used publicly available data from the United Nations to compare yields between that of Europe and North America. Their data show “no discernible advantage in yields — food per acre” for the United States and Canada over Western Europe during the time of GE crop adoption. A comparison between rapeseed yields in Canada and Western Europe shows increases in both regions, with Europe’s yields consistently higher, independent of the use of GE crops. For corn, gains in […]

(Beyond Pesticides, October 31, 2016) Only three of the top 20 food retailers receive a passing grade when it comes to their pollinator protection policies, according to a report released by Friends of the Earth. Swarming the Aisles; Rating Top Retailers on Bee-Friendly and Organic Food takes a closer look at the policies and practices of food retailers across the country and creates an industry scorecard highlighting how each individual retailer fairs in categories like organics, pollinator protection, and pesticide reduction. While some individual chains performed well, overall the results indicate that food retailers have a long way to go to meet consumer demand when it comes to protecting pollinators and establishing organic policies. Major retailers often lag behind public opinion when it comes to changing their official policies to promote practices that protect environmental interests. In 2014, Friends of the Earth, Beyond Pesticides and allies released a report showing that 36 out of 71 (51 percent) of garden plant samples purchased at top garden retailers in 18 cities in the United States and Canada contain  neonicotinoid  (neonic) pesticides ”” a key contributor to recent bee declines, despite the fact more than half a million Americans had signed petitions demanding […]

(Beyond Pesticides, October 24, 2016) Systemic neonicotinoid (neonic) exposure is associated with reductions in colony size and changes in foraging behavior, according to a recent field study done by a team of scientists at Imperial College London. The senior author of the study, Richard Gill, Ph.D., stated that when neonicotinoid “exposure is relatively persistent and combined with other stressors associated with land use change, they could have detrimental effects at the colony level.” The study, Impact of controlled neonicotinoid exposure on bumblebees in a realistic field setting, assesses the effect of exposure to the neonic, clothianidin, on bumblebee foraging patterns and colony size. Clothianidin was given to 20 buff-tailed bumblebee colonies for five-weeks in a sugar solution at a concentration of 5 parts per billion, an environmentally relevant level of the pesticide. A bumblebee colony census was done before and after the field experiment, where the number of eggs, larvae, pupae, and workers bees were recorded along with the wax and pollen stores in the colony. The researchers found that the clothianidin treated colonies had fewer workers, drones and reproductive female bees compared to the colonies with no exposure. These data add to the growing body of research on sub-lethal […]

(Beyond Pesticides, October 7, 2016) For the first time in U.S. history, the U.S. Fish and Wildlife Service (FWS) has added a group of bees to the list of Endangered Species. FWS published a final rule last Friday that  declares seven species of yellow-faced bees (genus Hylaeus) that are native to Hawaii as endangered. This announcement immediately follows last week’s news that FWS has proposed listing the rusty patched bumble bee as an endangered species under the Endangered Species Act (ESA). While the decision is great news for these bees and the environmental groups who have fought to protect them, there is still much work that needs to be done, and FWS says that it needs additional time to identify specific areas to be designated as critical habitat for the endangered bees. Further, though FWS has identified many threats to bees, including habitat loss and degradation due to urbanization, and other human activities, the final rule does not specifically point to pesticides. However, there is an overwhelming amount of research demonstrating that neonicotinoid insecticides, working either individually or synergistically, play a critical role in the ongoing decline of bees and other pollinators. Neonicotinoids have been linked to a range of […]

(Beyond Pesticides, September 20, 2016) Honey bee colonies are declining as the total number of pesticide products they are exposed to increases, regardless of the amount of exposure, according to research published last week from scientists at the University of Maryland (UMD). The study aimed to look at honey bee colonies’ exposome, a term traditionally used in cancer research, defined as the measure of all exposures over an individual’s lifetime and how those exposures relate to health. In their investigation, researchers did not look at individual honey bees but instead treated the colony as a single super-organism, and based results on lifetime exposure to agricultural chemicals. The 91 honey bee colonies studied by researchers were exposed to a total of 93 different pesticide compounds throughout the course of their pollination season. Of these residues, 13 different compounds were found in bees, 61 in beebread (packed pollen within the hive), and 70 were found in wax. Researchers gauged the effect of pesticide exposure not only by looking at the number of pesticides in colonies, but also their toxicological relevance over a specific threshold, as well as through the calculation of a hazard quotient (HQ), which evaluates  the cumulative toxicity of various […]

(Beyond Pesticides, September 13, 2016) Land suitable for commercial beekeepers in the U.S. Northern Great Plains (NGP) is declining rapidly, according to a new study released earlier this month by the U.S. Geological Service (USGS). The region, which supports over 40% of managed honey bee colonies, is quickly replacing suitable pollinator habitat with more and more pesticide-intensive biofuel crops, particularly corn and soybean, as a result of increased crop prices and federal subsidies for biofuels. The concerning trend adds another layer of stress not only to honey bee colonies, but beekeepers whose livelihood depends on the health of their commercial livestock. From early summer to mid-fall, roughly one million honey bee colonies make their way through the Northern Great Plains of North and South Dakota. The area is not usually a stop for pollination services, but a place where beekeepers go to generate a honey crop and improve the health of their colonies. Most of the colonies that summer in the NGP are trucked across the country to pollinate fruiting crops like apples, cherries, melons, and almonds during the winter, or are otherwise moved south to produce packaged bee colonies or queens. According to the USGS study, published in the […]

(Beyond Pesticides, September 8, 2016)  According to  a study  published last week by scientists at Iowa State, genetically engineered (GE) crops have not lived up to their promise to reduce pesticide use, and have instead led to an increase in toxic herbicide usage. The research, led by Edward Perry, Ph.D., found “clear evidence of increasing herbicide use by [GE] variety adopters over time for both soybeans and maize,” a finding that they credited partly to the emergence of weed resistance. The detailed dataset analyzed came from the company, GfK Kynetec, which conducts surveys of randomly selected farmers to assess decisions about pesticide and seed choices. The farm-level dataset that the researchers used was collected over the years 1998-2011 and includes a yearly average of 5,424 corn farmers and 5,029 soybean farmers. One striking trend that was noted since 1998 was the increase in the use of  glyphosate, the active ingredient in Monsanto’s Roundup. As of 2011, glyphosate was the primary herbicide used on soybeans, with just over 80% of total herbicide applied, and in corn it made up 40% of herbicide use, representing close to a 20-fold increase since 1998. Marketed as Roundup and other trade names,  glyphosate  is a […]

(Beyond Pesticides, September 2, 2016) Last Sunday, beekeepers in Dorchester County, South Carolina emerged from their homes to find their yards and  farms, once full of busy buzzing, littered with the honey bees. The cause was no mystery — a massive bee-kill had occurred due to aerial spraying of Naled, a highly toxic  insecticide used primarily to control adult mosquitoes. The county announced plans to spray two days before the incident, when four travel-related cases of Zika virus were confirmed in the area by the state Department of Health and Environmental Control. The spraying occurred between 6:30 and 8:30am. Naled is an organophosphate insecticide with the highest acute toxicity of any mosquitocide. According to the Environmental Protection Agency (EPA), Naled can cause cholinesterase (an enzyme necessary to the transmission of nerve impulses) inhibition in humans, meaning that it can overstimulate the nervous system causing nausea, dizziness, confusion, and, at very high exposures (e.g., accidents or major spills), respiratory paralysis and death. Naled is highly toxic to honey bees. In Dorchester County, beekeepers say that the spray announcements did not come soon enough. Flowertown Bee Farm and Supply lost more than 2.3 million insects from 46 hives, according to co-owner Juanita […]

(Beyond Pesticides, August 30, 2016) Last week, Minnesota Governor Mark Dayton issued an executive order aimed at reversing pollinator decline in the state by limiting the use of toxic, systemic neonicotinoid (neonics) pesticides. The order tasks state agencies with a range of pollinator protective activities, and follows the completion of a Special Registration Review of Neonicotinoid Pesticides conducted by the Minnesota Department of Agriculture. Given that a change in administration could lead to a rescinding of an executive order, it is critical that advocates continue to pressure for concrete legislative changes that institutionalize bee protective practices. “Bees and other pollinators play a critical role in supporting both our environment, and our economy,” said Governor Dayton. “This order directs state government to take immediate action to alleviate the known  risks that pollinators face. It also will create a new task force to study the issues impacting pollinators and recommend long-term solutions.” The executive order directs the Department of Agriculture to immediately initiate steps requiring neonics only be applied when there is “an imminent threat of significant crop loss.” This move applies  to sprays, drenches, or granular applications of neonics, however, and not seed coatings, which will require separate legislative action to […]

(Beyond Pesticides, August 19, 2016) A study published earlier this week has found that the increasing use of neonicotinoid (neonic) insecticides is correlated with a steep decline in butterfly health and reproductive success — as more neonics are used, butterflies are struggling to survive. This study adds to previous evidence that demonstrates, in addition to bees, neonics can cause serious harm to other important pollinators. The study, Increasing neonicotinoid use and the declining butterfly fauna of lowland California, looks at 67 species of butterfly fauna in the lowlands of Northern California at four sites that were  monitored for approximately 30-40 years. The sites include Suisun Marsh, West Sacramento, North Sacramento, and Rancho Cordova. While controlling for land use and other factors, the researchers found a correlation between butterfly population decline and increasing neonic applications, which also appeared to be more severe for smaller-bodied species. According to the researchers, the results suggest that neonics could influence non-target insect populations when applied nearby. This study contributes to the mounting evidence that neonicotinoid insecticides are linked to pollinator decline. Neonics have increasingly been the subject of studies that highlight a relationship between neonicotinoid exposure  and harmful effects to pollinators. These effects are being […]

(Beyond Pesticides, August 18, 2016)   Decline of wild bee populations is linked to the use of toxic, systemic neonicotinoid (neonic) pesticides used on oilseed rape (canola), according to new research done by a team of scientists at the Centre for Ecology and Hydrology in the United Kingdom. In addition to corn and soybeans, canola is one of the main crops treated with neonicotinoids worldwide. Neonic pesticides have long been identified as a major culprit in bee decline by independent scientists and beekeepers, yet chemical manufacturers like Bayer and Syngenta have focused on  other issues such as the varroa mite. As Beyond Pesticides put it in the spring 2014 issue of Pesticides and You, the issue of pollinator decline is No Longer a Big Mystery, and urgent action is needed now to protect pollinators from these toxic pesticides. Neonics are associated with decreased learning, foraging and navigational ability, as well as increased vulnerability to pathogens and parasites as a result of suppressed bee immune systems. In addition to toxicity to bees, pesticides like neonicotinoids have been shown to also adversely affect birds, aquatic organisms and contaminate soil and waterways, and overall biodiversity. The study, Impacts of neonicotinoid use on long-term […]

(Beyond Pesticides, August 12, 2016) A new study by a team of scientists at Virginia Tech finds that commonly used in-hive pesticides result in changes to the honey bee gut microbiome. The study, Honey bee gut microbiome is altered by in-hive pesticide exposures, was led by Virginia Tech associate professor of horticulture, Mark Williams, Ph.D., and colleagues from Oregon State University and North Carolina State University. This research, published several weeks ago in the journal Frontiers in Microbiology, aimed to determine the microbiome of honey bees (Apis mellifera) after being exposed to three common pesticides. Coumaphos and tau-fluvalinate, both common miticides used in conventional beekeeping, and chlorothalonil, a fungicide commonly detected in hives, were used as pesticide treatments in the study. While this  research contributes to the already established body of science on the complexity of pesticide exposure effects, beekeepers reported the steepest, and then sustained, declines in honey bee populations after the large  increase in  neonicotinoid pesticide  use in the early 2000’s. Beekeepers nationwide suffered  their highest hive losses of 44.1% in the last national survey from April 2015-2016. While it is likely that neonicotinoids are not the sole factor in pollinator decline, they have been found to exacerbate […]

(Beyond Pesticides, July 28, 2016)   Led by the Institute of Bee Health at the University of Bern, new research finds evidence that two commonly used neonicotinoid (neonic) insecticides have a significant adverse effect on the reproductive ability of male honey bees (drones) and queen bees in managed and wild colonies. The study,  Neonicotinoid insecticides can serve as inadvertent insect contraceptives, published in  Royal Society Journal Proceedings B, focuses on the differences in lifespan and viability of sperm throughout exposed and unexposed drones. Since 2006, honey bees and other pollinators in the U.S. and throughout the world have incurred ongoing and rapid population declines from hive abandonment and bee die-off in a phenomenon known as colony collapse disorder (CCD).  Neonicotinoids, such as imidacloprid, thiamethoxam and clothianidin, have been found by  a growing body of scientific literature  to be linked to the CCD phenomenon and  pollinator decline in general. While science has become increasingly clear that these  pesticides  play a critical role in contributing to  the ongoing decline of bee health, this is one of the first to look at how these chemicals specifically effect the fertility of male honeybees. In the study, scientists randomly assigned honeybee colonies consisting of drones […]

(Beyond Pesticides, July 20, 2016) Farmers and land managers across the U.S. are being encouraged to plant pollinator habitat adjacent to farmlands to provide shelter and food for pollinator species. But according to a new study published last week, these conservation areas still put bees at risk for pesticide contamination, as they fail to provide spatial or temporal relief. This study emphasizes that meaningful solutions to reversing pollinator decline does not lie with focusing on planting pollinator habitat, but ensuring that these refuge areas are free from pesticide contamination, highly toxic to bees and other pollinators, and reducing the reliance on toxic chemical inputs in agriculture and other landscapes. The study, “Neonicotinoid-contaminated pollinator strips adjacent to cropland reduce honey bee nutritional status,” finds that pollinator habitat adjacent to agricultural areas not only becomes a source for pesticide, especially neonicotinoid, exposures, but also poses significant risk to honey bees. The authors, Christina Mogren, PhD, and former USDA entomologist, Jonathan Lundgren, PhD, initially sought to study whether increasing forage by planting pollinator habitat in an agricultural-dominated region would serve to buffer against the harmful effects of plant-incorporated pesticides. However, the authors note that it soon became apparent that the unintended consequence was […]

(Beyond Pesticides, July 12, 2016) Canadian environmental organizations sued the  Canadian Pest Management Regulatory Agency (PRMA) last week in a bid to overturn the approval of two neonicotinoid pesticides linked to the decline of honey bees and wild pollinators. The move comes amid growing awareness, action, and scientific evidence linking this widely used class of insecticides to the global decline of pollinator populations. The lawsuit, filed  by Ecojustice on behalf of  The David Suzuki Foundation, Friends of the Earth Canada, Ontario Nature, and the Wilderness Committee, argues that pesticide products containing two neonicotinoids, clothianidin and thiamethoxam, are unlawfully registered in Canada. The groups allege that PMRA failed to ensure that it had the data necessary to determine the environmental risks, particularly those concerning pollinators, posed by the chemicals. “The PMRA has taken a see-no-evil, hear-no-evil, speak-no-evil approach by repeatedly registering these neonicotinoid pesticides without important scientific information on their risks to pollinators,” said Charles Hatt, staff lawyer at Ecojustice. Under Canada’s Pest Control Products Act, PMRA must have “reasonable certainty” that a pesticide will not cause harm to the environment before it is registered. The groups also note that several thiamethoxam-based products have been registered by the agency for years […]

(Beyond Pesticides, June 23, 2016) A truck full of dead bees made its final stop yesterday at a rally outside the headquarters of the U.S. Environmental Protection Agency (EPA), culminating a coast-to-coast tour to raise awareness about recent massive declines in pollinators. While the millions of dead bees stayed on the truck, advocates and beekeepers, including Beyond Pesticides, delivered over 4 million signatures urging an immediate ban on bee-killing pesticides. “In the five years since I started keeping bees, I’ve seen many hives killed by pesticides,” said James Cook, a Minnesota-based beekeeper who has been driving the truck across the country since last Monday. “If some fundamental things don’t change, it’s going to be really hard for beekeepers to adapt to the environment around us.” Bees pollinate most of the world’s most common crops, including summer favorites like peaches and watermelon. But over 40 percent of U.S. honeybee hives die each year, costing the farming and beekeeping industry more than $2 billion annually. The most significant culprit in the bee die-off is the widely-used class of pesticides called neonicotinoids, or neonics. Last spring EPA began a process to assess four types of neonics and their impacts on pollinators. In January […]

(Beyond Pesticides, June 1, 2016) A study  by researchers at Purdue University has concluded  that honey bees collect most of their pollen from non-crop plants that are frequently contaminated with agricultural and urban pesticides. The researchers found this to be true even in places where croplands dominate the area.  The study, which detected neonicotinoids, pyrethroids, fungicides, and others, highlights the large number of toxic pesticides to which bees are exposed to in the environment. Researchers collected pollen from Indiana honey bee hives at three sites over 16 weeks. The hives were placed in a variety of settings, such as an open meadow with wildflowers, woody shrubs and trees present (non-agricultural), the border of a corn field that was treated with the neonicotinoid clothianidin and three fungicides, and the border of a non-treated corn field. The pollen samples that were collected by the bees represented up to 30 plant families and contained residues from pesticides spanning nine chemical classes. The researchers found 29 pesticides in pollen from the meadow site, 29 pesticides in pollen from the treated cornfield, and 31 pesticides in pollen from the untreated cornfield. The most common chemical products found in pollen from each site were fungicides and […]

(Beyond Pesticides, May 17, 2016) It was 10 years ago that commercial beekeepers first reported widespread, unsustainable winter losses of their honey bee colonies. A decade after the alarm was first sounded on pollinator declines, results of 2015-16 Colony Loss Survey show no sign the crisis of abating. According to the Bee Informed Partnership survey, beekeepers lost 28.1% of their colonies over this past winter, and a total of 44% of their colonies over the last year. This marks the second year in a row that summer declines (28.1%) were on par with declines experienced during winter. Beekeepers factor in that a small percentage, <15% of their colonies, will be lost each winter, but do not expect to lose colonies during the summer, when there is amble forage and nectar for bees. The costs beekeepers must incur to keep their hives alive continue to increase. More time and money is spent to maintain their hives, yet losses continue to be staggering ”” and unsustainable. As colony collapse disorder (CCD), the cryptic loss of honey bee colonies with no sign of dead bees in or around the hive, has faded from public discussion, concerns over pollinator declines in general, from bees […]