(Beyond Pesticides, January 8, 2018)  With a long-documented history of children’s exposure to pesticides that drift from agricultural fields to school yards, California’s new regulations establishing no-spray buffers took effort January 1, as labor and public health groups acknowledged the progress and inadequacy of the measure. The new rule, DPR 16-004 Pesticide Use Near Schoolsites, adopted by the California Department of Pesticide Regulation (DPR), prohibits many pesticide applications within a quarter mile of public K-12 schools and licensed child day-care facilities during school hours, Monday through Friday between 6 a.m. and 6 p.m. This includes all applications by aircraft, sprinklers, air-blast sprayers, and all fumigant applications. In addition, most dust and powder pesticide applications, such as sulfur, will also be prohibited during this time. The new rule was announced in November, 2017. Advocates say the new rules fail to address persistent low-level exposures associated with the use of the pesticides near schools, which are in agricultural areas that are disproportionately Latino and from farmworker families. There is continuing concern about children’s exposure to hazardous pesticides because children use school grounds after school hours and on weekends and residues from drift may remain on school grounds. Many pesticides used are persistent and systemic, lingering […]

(Beyond Pesticides, January 4, 2018) Last month, the U.S. Environmental Protection Agency (EPA) released the preliminary ecological (non-pollinator) assessments for the neonicotinoids (neonics); clothianidin, thiamethoxam, dinotefuran, and the terrestrial ecological assessment for imidacloprid, finding that these pesticides pose both acute and chronic risks to aquatic life and birds. Treated seeds are identified as posing the highest dietary risks to birds, confirming previous research that neonics are highly hazardous not only to bees, but to birds, aquatic life, and other non-target organisms. Released December 15, 2017, EPA opened the public comment period for these assessments until February 20, 2018. Along with the risks identified in the assessments, the agency is specially requesting feedback on the benefits of continued use of the neonics in cotton and citrus crops identified in last year’s pollinator assessments as posing risks to honey bees. EPA states, “We believe early input from the public will be helpful in developing possible mitigation options that may be needed to address risks to bees.” This despite evidence of long-term systemic exposures to non-target organisms that support a phase-out of these pesticides. EPA believes that neonicotinoids are crucial for the management of Asian citrus psyllid, an invasive pest that causes citrus greening, […]

(Beyond Pesticides, December 21, 2017) On December 18, the U.S. Environmental Protection Agency (EPA) declared that glyphosate is likely not carcinogenic. Relatedly, after weeks of stalemate on a decision by European countries, the European Union (EU) voted, in late November, to extend the license for the herbicide for another five years, despite massive opposition in member countries. In the U.S., the Center for Biological Diversity charged that the EPA assessment relied heavily on industry studies to arrive it its conclusion, and ignored its own guidelines for assessing cancer risks. Senior scientist at the Center for Biological Diversity Nathan Donley said, “The only way the EPA could conclude that glyphosate poses no significant risks to human health was to analyze industry studies and ignore its own guidelines when estimating cancer risk. . . . The EPA’s biased assessment falls short of the most basic standards of independent research and fails to give Americans an accurate picture of the risks posed by glyphosate use.” Glyphosate is due for its EPA registration review in 2019, and opponents are concerned that the December 18 announcement portends likely re-registration — which advocates say is bad news for human health and the environment. As the chief […]

(Beyond Pesticides, December 15, 2017) The Trump Administration’s pick to become the Environmental Protection Agency (EPA) Assistant Administrator for Chemical Safety and Pollution Prevention, Michael Dourson, PhD, has withdrawn his name from consideration after it became increasingly likely he would not pass Senate confirmation due to his deep connections to the chemical industry. In a letter obtained by the Associated Press, Dr. Dourson indicated his move “avoids unnecessarily politicizing the important environmental protection goals of Administrator Pruitt.” Health and environmental groups, including Beyond Pesticides, which launched a campaign against Dr. Dourson’s nomination, are pleased by the withdrawal announcement, but remained deeply concerned with the Trump administration’s continued propensity to promote industry interests and industry-backed nominees over real measures to safeguard environmental health and justice. Dr. Dourson’s withdrawal was predicated on reports in November that North Carolina’s two Republican Senators, Richard Burr and Thom Tillis, planned to vote against Dourson’s appointment.  North Carolina is the midst of a growing scandal implicating Chemours, a company spun-off from chemical giant DuPont in 2015, in widespread water contamination with the chemical GenX, used to make Teflon and other industrial products. Chemours operates a GenX production plant in Fayetteville, NC, and is accused of regularly […]

(Beyond Pesticides, November 30, 2017)  A French court suspended the license of two pesticide products citing their toxicity to bees. The products, Closer and Transform, both contain the active ingredient, sulfoxaflor, which is highly toxic to bees. The ruling overturned the decision by France’s health and environment agency, ANSES, to allow the use of the sulfoxaflor products. Sulfoxaflor use was also challenged in the U.S. by beekeepers concerned about its impact on already declining bee populations. Sulfoxaflor is a relatively new active ingredient whose mode of action is similar to that of neonicotinoid pesticides. Even though it has not been classified as a neonicotinoid, it elicits similar neurological responses in honey bees, with many believing that sulfoxaflor is a new generation of neonicotinoid. Its initial 2013  U.S. registration was challenged by beekeepers and subsequently vacated by the Ninth Circuit Court of Appeals due to overwhelming risks to bees and the U.S. Environmental Protection Agency’s (EPA) inadequate review of the data. The court concluded that EPA violated federal law when it approved sulfoxaflor without reliable studies regarding the impact that the insecticide may have on honey bee colonies. By vacating EPA’s unconditional registration of the chemical, sulfoxaflor could not be used […]

(Beyond Pesticides, November 28, 2017) Bumblebees exposed to field-realistic levels of neonicotinoid insecticides have problems with “buzz pollination” that results in reduced pollen collection, according to new research published in Scientific Reports. This is the latest science to tease out the complex ways in which neonicotinoids interfere with these important pollinators, providing yet another reason to eliminate these highly toxic, systemic insecticides from the environment. Flowers that bumblebees pollinate require the insects to emit soundwaves, or ‘sonicate’ to release their pollen, and bumblebees must perfect their techniques over time in order to maximize the pollen they are able to collect. Researchers tested the effect of neonicotinoids on bumblebees’ sonication abilities by exposing them to field realistic doses of the insecticide thiamethoxam at rates of 2 parts per billion (ppb) and 10 ppb, and observing their ability to successfully collect pollen. A control group that never came in contact with thiamethoxam was also used to compare the progress of the exposed group. Lead author of the study, Penelope Whitehorn, PhD, indicated, “We found that control bees, who were not exposed to the pesticide, improved their pollen collection as they gained experience, which we interpreted as an ability to learn to buzz […]

(Beyond Pesticides, October 27, 2017) In a study published in the Journal of Agricultural and Food Chemistry, scientists at University of Massachusetts, Amherst identify a novel approach to reduce toxic pesticide residues on conventional food. The method the authors describe is cumbersome and unlikely to be widely used by consumers. At the same time, study results confirm that eating organic products is the best way for individuals and families to eliminate pesticide residues from their diet. For the current study, researchers looked at how much of two common pesticides, one, the fungicide thiobendazole, and the other, the insecticide phosmet, remained on apples after submersion for 24 hours. Both pesticides penetrated the skin of the apples, though thiobendazole, a systemic fungicide, made its way deeper into and past the apple’s skin. Thiabendazole penetrated 80 micrometers into the apple while phosmet penetrated 20 micrometers. Researchers looked at three different methods to reduce the pesticides on apples: tap water, a bleach solution, and baking soda. Compared to the others, baking soda was found to be by far the most effective method to reduce pesticide residue, with 80% of thiabendazole and 95% of phosmet removed. “If factory washing [with bleach] is already effective, then […]

(Beyond Pesticides, October 24, 2017) Over 75% of insect abundance has declined over the last 27 years, according to new research published by European scientists in PLOS One. The dramatic drop in insect biomass has led to equally dramatic pronunciations from highly respected scientists and entomologists. “We appear to be making vast tracts of land inhospitable to most forms of life, and are currently on course for ecological Armageddon,” study coauthor David Goulson, Ph.D. of Sussex University, UK, told The Guardian. “If we lose the insects then everything is going to collapse.” Looking at the range of mechanisms that could be driving this slow moving catastrophe, researchers could suss out only one plausible large-scale factor: agricultural intensification. The current study, which looked at 63 nature preserves located in Germany, follows a similar study released in 2013 that was conducted in a singular German nature preserve. That study, originally published only in German, but available translated by Boulder County Beekeepers, found that 75% of insect biomass declined in the Orbroich Bruch Nature Reserve in Krefeld, Germany from 1989 to 2013. That study was limited to a singular nature preserve, and while scientists who worked on the study described their results as […]

(Beyond Pesticides, October 23, 2017) Willapa Bay and Grays Harbor, with a number of unique ecosystems, and among the most important estuaries in the U.S, are once more in danger of being sprayed with the toxic neonicotinoid insecticide imidacloprid. A draft Supplemental Environmental Impact Statement (SEIS) produced by the Washington State Department of Ecology (Ecology) considers two options for spraying imidacloprid and one no-action alternative. Imidacloprid would be sprayed to kill the native burrowing shrimp in beds of commercial Japanese oysters. Tell Ecology to restore the bays instead of spraying them! Ecology’ssummary highlights: ⦁    Immediate adverse, unavoidable impacts to juvenile worms, crustaceans, and shellfish in the areas treated with imidacloprid and the nearby areas covered by incoming tides. ⦁    Limited impacts bay-wide, but significant uncertainty about the cumulative impacts and other unknown impacts, including those to other marine invertebrates and lifecycles. ⦁    Little direct risk to fish, birds, marine mammals, and human health. ⦁    Potential indirect impacts to fish and birds if food sources are disrupted. ⦁    Continued knowledge gaps about imidacloprid. Further research is needed. The SEIS fails to give adequate weight to the “knowledge gaps” it identifies, in some cases indicating that monitoring during use of imidacloprid could be used […]

(Beyond Pesticides, October 12, 2017) Honey throughout the world is contaminated with neonicotinoid insecticides, chemicals implicated in global decline of pollinator populations. The extent of contamination recorded in the new Science study —with the chemicals detected on every continent except Antarctica, even in honey produced in small isolated islands— is symptomatic of a world awash in toxic pesticides. The results call into question globalized mores that have permitted chemical insecticides to pervade the environment, and signal the need to transform pest management to integrated organic systems that respect nature. Neonicotinoids are systemic pesticides that are taken up by a plant’s vascular system and transported into the pollen, nectar, and guttation (drops of xylem sap) drops the plant produces. They are mobile in soil, so quantities of the chemical that are not taken up by plants after an application leach through the soil column into local waterways. Pollinators come into contact with these insecticides through their normal course of foraging and pollination. Out of 198 honey samples collected as part of a global citizen science project and subsequently tested by Swiss scientists, 75% of samples contained a measurable level of neonicotinoids. Broken down by region, North America represented the highest frequency […]

(Beyond Pesticides, August 28, 2017) School policies must protect children from pesticides by adopting organic land and building management policies and serving organic food in cafeterias. At the start of the school year, it is critical for school administrators to make sure that students and teachers are learning and teaching in an environment where no hazardous pesticides are used in the school’s buildings or on playing fields. It is also essential that children have access to organic food in food programs and manage school gardens organically. Send a letter to your local officials urging them to tell school districts to adopt organic management and serve organic food to students. In addition, there are other things you can do: Whether a parent, teacher, student, school administrator, landscaper or community advocate, there are steps that should be taken to make sure the school environment is a safe from toxic chemicals, as the new school year begins. For Parents and Teachers: Because children face unique hazards from pesticide exposure due to their smaller size and developing organ systems, using toxic pesticides to get control insects, germs, and weeds can harm students much more than it helps. The good news is that these poisons are unnecessary, given the availability of […]

(Beyond Pesticides, May 31, 2017) Neonicotinoid-treated corn seeds produce lethal and sub-lethal exposure risks to honey bees and do not increase yields for farmers, according to a recent study by researchers at Purdue University. The study, published in the Journal of Applied Ecology, Planting of neonicotinoid-treated maize poses risks for honey bees and other non-target organisms over a wide area without consistent crop yield benefit, examines neonicotinoid (neonic) dust drift during corn planting in Indiana and the likelihood of honey bee exposure during foraging. The study results and subsequent analysis using public data of apiary locations indicate that over 94% of honey bee foragers in Indiana are at risk of exposure to varied levels of neonics, including lethal levels, during corn sowing. Researchers also performed a three-year field assessment of the purported benefits from neonic seed coatings for pest management, finding that there is no evidence of increased corn yields compared to sites with no neonic seed treatments. According to the lead author of the study, Christian Krupke, Ph.D., in an interview with Purdue Extension, “There was a misconception that any bees not living near corn were likely to be fine. But that’s not true, and it’s clear that these […]

(Beyond Pesticides, May 30, 2017) U.S. beekeepers lost an unsustainable 33% of their hives over the past year, according to new data from the Bee Informed Partnership. While this year’s numbers are lower than those recorded last year, which found nearly half of U.S. honey bee colonies died off, there is no cause for celebration. Declines are still well above acceptable loss rates of 15% or less, and the data indicate a continuing trend of substantial losses during the summer months. Without real changes to U.S. policy that effectively eliminate pollinator exposure to highly toxic and persistent pesticides such as neonicotinoids, there is little likelihood that these unsustainable losses will subside. Despite the overall dour projections for U.S. pollinators, Bayer, the major manufacturer of neonicotinoid pesticides implicated in pollinator declines, attempts to spin the news in its favor. Last week, the company put out a press release titled “Welcome News for Honey Bees,” and went on the praise itself for its efforts to protect pollinators. The chemical industry continues to use public relations tactics, in a similar vein to those previously employed by the tobacco industry, to downplay the nature of the crisis, spin the science, and blame everything but […]

(Beyond Pesticides, May 11, 2017) On Monday, a federal judge in California ruled that the U.S. Environmental Protection Agency (EPA) violated the Endangered Species Act (ESA) when it issued 59 neonicotinoid insecticide registrations between 2007 and 2012 for pesticide products containing clothianidin and thiamethoxam. The original lawsuit against EPA, Ellis v. Housenger, was filed in March 2013, by beekeeper Steve Ellis and a coalition of other beekeepers and environmental groups, including Beyond Pesticides. The 2013 lawsuit focused on the EPA’s failure to protect pollinators from dangerous pesticides and challenged EPA’s oversight of the bee-killing pesticides, clothianidin and thiamethoxam, as well as the agency’s practice of “conditional registration” and labeling deficiencies. According to George Kimbrell, Center for Food Safety’s legal director and the lead plaintiffs’ counsel, “This is a vital victory. Science shows these toxic pesticides harm bees, endangered species and the broader environment. More than fifty years ago, Rachel Carson warned us to avoid such toxic chemicals, and the court’s ruling may bring us one step closer to preventing another Silent Spring.” The judge presiding over the case rejected claims by pesticide producers and their supporters that the plaintiffs failed to establish a causal link between the pesticides and the […]

(Beyond Pesticides, May 5, 2017) Walmart and True Value have announced that beginning on Wednesday they will be phasing out neonicotinoid (neonic) pesticides from all retail supply chains. These announcements follow numerous scientific studies that have consistently implicated neonics in the decline of honey bees and other wild pollinators. The decision stems from an ongoing consumer and environmental campaigns urging retailers to stop selling plants treated with neonics and to remove products containing them from store shelves. Neonicotinoids are systemic pesticides, or whole plant poisons, taken up by a plant’s vascular system and expressed in the pollen, nectar, and dew drops. They are also highly persistent, with research showing the potential for certain chemicals in the class, such as clothianidin, to have a half-life of up to 15 years. Studies show significant cause for concern when it comes to pollinators and exposure to these pesticides. Although little substantive action on these chemicals has been taken by the U.S. Environmental Protection Agency (EPA), the agency agreed that the pesticides do harm bees, though only in the limited situations and constrained scenarios that were actually investigated by EPA. The European Commission (EC) has proposed a complete ban of agricultural uses of the widely used […]

(Beyond Pesticides, May 3, 2017) Last week, researchers at the University of California San Diego revealed the first ever link between the use of neonicotinoid pesticides and the ability of bees to fly. Published in Scientific Reports, the study, “A common neonicotinoid pesticide, thiamethoxam, impairs honey bee flight ability,” builds on previous findings that neonicotinoid use interferes with bees’ ability to navigate, and concludes that exposure to thiamethoxam affects honey bee flight patterns as well as their physical ability to fly in ways that may be detrimental to their survival. The study is the latest in a growing body of science linking pesticide use to honey bee declines, raising concerns about overall honey bee health and longevity in the face of continued neonicotinoid use. According to the study, both acute and chronic exposure to thiamethoxam revealed significant alterations of the ability of bees to fly -affecting flight distances, duration of flights, and flight velocity. Researchers noted significant differences in bee behavior based on short versus long term exposure, which they summarized as having an “excitatory short-term effect and a depressive longer-term effect” on the bees’ ability to fly. This means that when bees were exposed to thiamethoxam for a short, […]

(Beyond Pesticides, April 14, 2017) – As pollinators nationwide suffer severe declines tied to widespread exposure to pesticides, particularly a family of insecticides known as neonicotinoids, a new report details the chemicals’ dramatic impacts on aquatic ecosystems and biodiversity. This report coincides with findings of neonicotinoids in drinking water. The new report, Poisoned Waterways, documents the persistence of neonicotinoids in U.S. waterbodies and the danger they cause to aquatic organisms, resulting in complex cascading impacts on aquatic food web. The report supports previous calls for the restriction of neonicotinoid pesticides, given their high toxicity to bees, and now aquatic life. In an early 2017 U.S. Environmental Protection Agency (EPA) risk assessment on one of the most widely used neonicotinoids, the agency reported levels in streams, rivers, lakes and drainage canals that routinely exceed acute and chronic toxicity endpoints derived for freshwater invertebrates. Poisoned Waterways reviews the current scientific literature on the effects of neonicotinoids in waterways and the life they support. Not only are these insecticides, which include, imidacloprid, clothianidin, and thiamethoxam, regularly detected in waterbodies in the U.S., they are found at levels that harm sensitive aquatic organisms. Aquatic insects and crustaceans are highly vulnerable, with the mayfly identified […]

(Beyond Pesticides, April 12, 2017) Earlier this week, the Maryland General Assembly took action to protect pollinators found in designated state pollinator habitat by passing SB 386/HB 830, Pollinator Habitat Plans- Plan Contents- Requirements and Prohibition, with bipartisan support. With this bill, the legislature will require pollinator habitat plans developed by any state agency to be as protective of pollinators as the Maryland Department of Agriculture’s managed pollinator protection plan requires. This translates to prohibiting, with some exceptions, the use of neonicotinoid pesticides or neonicotinoid-treated seeds or plants on state land designated as pollinator habitat. The bill’s passage represents the third major legislative victory to protect bees and other pollinators coming out of Maryland in the past year. Last spring, in a historic move, the Maryland legislature voted to become the first state in the nation to ban consumers from using products containing neonicotinoid pesticides, a class of bee-toxic chemicals that has been linked to the startling decline in bees and other pollinators around the world. The Maryland Pollinator Protection Act (Senate Bill 198/House Bill 211), which also received bipartisan support, stipulates that consumers will not be allowed to buy pesticide products containing neonicotinoids starting in 2018. However, the legislation’s reach does not extend […]

(Beyond Pesticides, April 5, 2017) The tumbling flower beetle is the pollinator of the month for April. The tumbling flower beetle is the common name for Mordellidae, a family of beetles comprising over 1,500 species, 200 of which are found in North America according to the Field Guide to Beetles of California. Their common name is derived from the movement pattern they exhibit when disturbed. The beetles use their large rear legs to kick, jump, and tumble in an erratic pattern to the confusion of predators and the amusement of human observers. Range The differentiation in this large family lends itself to near ubiquity. According to the Encyclopedia of Life, the tumbling flower beetle can be found on every continent except Antarctica. Texas A&M notes the individual species are not overly adapted to specific environments and a number of species frequently overlap within a single ecosystem. Diet and Pollination Beetles are frequently overlooked in the world of pollinators. According to the U.S. Department of Agriculture’s Forest Service, the tumbling flower beetle’s ancestors were some of the earliest insects to utilize flowers for food and habitat. In doing so, these ancient pollinators began an important collaboration between flowers and beetles which continues […]

(Beyond Pesticides, March 14, 2017)  The U.S. Environmental Protection Agency (EPA) is opening an investigation into whether the Hawaii Department of Agriculture (HDOA) and the state Agribusiness Development Corporation (ADC) are discriminating against Native Hawaiians in their administration of the state’s pesticide program. The investigation comes after a number of local community groups, represented by the nonprofit environmental law organization Earthjustice, filed a complaint in September 2016 asking EPA to take action against systemic abuses of Native Hawaiian peoples. Local efforts to protect pesticide-exposed communities have been repeatedly stymied by giant pesticide corporations operating on the island, which filed lawsuits that ultimately struck down local laws. EPA’s investigation will focus on the state’s activity on the islands of Kauai and Moloka’i. “The External Civil Rights Compliance Office will investigate whether in administering the pesticides program and the leasing and licensing of the state land program the HDOA and/or ADC discriminated on the basis of race and/or national origin against farm workers and residents of West Kauai and Molokai, in violation of Title VI of the Civil Rights Act, and EPA’s implementing regulation,” wrote Lilian Dorka, director of EPA’s External Civil Rights Compliance Office(ERCO), in a letter to Earthjustice. Under Title […]

(Beyond Pesticides, March 6, 2017) A study published last month by Canadian researchers finds that exposure to the neonicotinoid insecticide imidacloprid at environmentally relevant levels results in slight delays in metamorphosis in the tadpoles of the wood frog. While the authors find that this slight delay is not necessarily a cause for concern from an ecological perspective, sublethal effects of pesticide mixtures and a variety of stressors in the environment play a role in extending juvenile periods in frogs, which can increase mortality and population decline. Because neonicotinoids are so widely use, the authors recommend further research on their impact on declining frog populations. The study, published in Environmental Toxicology and entitled, “Sublethal effects on wood frogs chronically exposed to environmentally relevant concentrations of two neonicotinoid insecticides,” looks at the chronic exposure effects of the neonicotinoids imidacloprid and thiamethoxam on the wood frog (Lithobates sylvaticus). The wood frog was chosen because it is native to North America and has a wide distribution across the continent. The researchers exposed tadpoles to environmentally relevant concentrations (1ug/L, 10ug/L and 100ug/L) of the commercial formulation of the neonicotinoids (Admire and Actara). The study finds a significant difference in time for tadpoles to metamorphose. Tadpoles exposed […]

(Beyond Pesticides, March 1, 2017) The Fig wasp is the pollinator of the month for March. A highly evolved pollinator crucial to the life cycle of the fig tree, the fig wasp is part of the chalcidoid family. Within this classification, it is a member of the agaonidae sub family, which consists of both mutualistic pollinating, and parasitic, non-pollinating, fig wasps. Fig wasps have a mutually beneficially relationship with fig trees, as both the tree and the wasp rely on each other for reproduction. According to the Encyclopedia Britannica, there are about 900 species of pollinating fig wasps that are responsible for pollinating 900 different fig tree species. The relationship between fig trees and fig wasps is so evolved that each type of fig wasp pollinates only one specific type of fig tree, creating a beautiful and interdependent evolutionary partnership. Range The range of the fig wasp is dependent on the range of fig trees, which, according to the Encyclopedia of Life, are mainly found in the tropical and subtropical areas of the southern hemisphere. The most widely known fig tree, the common fig tree, or Ficus carica, is native to southwest Asia and the Mediterranean, and range anywhere from […]

(Beyond Pesticides, February 27, 2017) Myclobutanil, a systemic fungicide commonly used in agriculture and home gardens, can cause significant damage to the muscles that honey bees use to fly and keep warm during the winter. The results of a study, published this month in the journal Proceedings of the National Academy of Sciences (PNAS) by a group of researchers from the University of Illinois at Urbana-Champaign, underscore the importance of wide-scale education and movement away from the regular use of toxic pesticides. After nearly a decade of unsustainable losses, honey bees and other pollinators continue to suffer declines resulting from the use of toxic pesticides, particularly systemic insecticides called neonicotinoids. Although a substantial body of science implicates neonicotinoids as the most serious chemical threat to pollinators currently, the effects of fungicides and other pesticides on these important animals should not be dismissed as inconsequential. In fact, a 2016 study published by researchers at the University of Maryland found that bee colonies may die off as the number of different pesticide exposures increase. In this recent study, researchers discovered complex interactions between myclobutanil, natural compounds found in flowers, and honey bees’ detoxification system, known as cytochrome 450 enzymes. When foraging on flowers sprayed with […]