(Beyond Pesticides, January 17, 2018) The organophosphate insecticides chlorpyrifos, malathion, and diazinon are likely to jeopardize the continued existence of endangered species and adversely modify their critical habitats, according to the newly released report from the National Marine Fisheries Service (NMFS). The insecticide cholorpyrifos, whose ban was rescinded by the Trump Administration last year, despite overwhelming evidence of neurological and brain damage to children, is once again being shown to be too toxic for continued use. Under Section 7 of the Endangered Species Act (ESA), any agency action requires a finding that it “is not likely to jeopardize the continued existence of any endangered species or threatened species or result in the destruction or adverse modification of habitat.” The December 31, 2017 Biological Opinion from NMFS followed an ecological assessment that relied upon multiple lines of evidence to determine effects to species and their designated habitats. These include “the direct and indirect toxicity of each chemical to aquatic taxa groups (e.g. fish, mammals, invertebrates); specific chemical characteristics of each pesticide (e.g. degradation rates, bioaccumulation rates, sorption affinities, etc.); expected environmental concentrations calculated for generic aquatic habitats; authorized pesticide product labels; maps showing the spatial overlap of listed species’ habitats with pesticide use areas; […]

(Beyond Pesticides, December 14, 2017) Tests of waterways in the United Kingdom (UK) reveal rivers contaminated with neonicotinoids, the class of chemicals highly toxic to bees and aquatic invertebrates. And now, although neonicotinoids were banned from use on certain crops in the European Union (EU) in 2013, an EU vote to extend the ban has been delayed. The test results raise concerns over neonicotinoids’ impacts on waterways, especially to fish and birds. Under a new EU mandate -Water Framework Directive ‘Watch List’ initiative – the UK was required to monitor for all five commonly used neonicotinoids: imidacloprid, clothianidin, thiamethoxam, acetamiprid and thiacloprid. Twenty-three sites were sampled in 2016, 16 in England, four in Scotland, three in Wales and three in Northern Ireland. This is the first systematic testing of neonicotinoids in rivers in Britain. According to the results, half the rivers tested in England had either chronic or acute levels of contamination. Of the 23 rivers tested across Britain, all but six contain neonicotinoids. Eight rivers in England exceed recommended chronic pollution limits, and two are acutely polluted. Neonicotinoids are not only highly toxic to bees but also highly toxic to aquatic insects, which are a vital food source to […]

(Beyond Pesticides, September 14, 2017) Children whose mothers took folic acid while pregnant had a significantly lower risk of developing autism spectrum disorder (ASD) even when their mothers were exposed to household or agricultural pesticides. Researchers at the University of California, Davis found that taking folic acid during the window around conception, reduced the risk of pesticide-induced autism. In the study, “Combined Prenatal Pesticide Exposure and Folic Acid Intake in Relation to Autism Spectrum Disorder,” children whose mothers took 800 or more micrograms of folic acid (the amount in most prenatal vitamins) had a significantly lower risk of developing autism spectrum disorder, even when their mothers were exposed to household or agricultural pesticides that are associated with increased risk. The study used data from the Childhood Autism Risks from Genetics and the Environment (CHARGE) study, where researchers looked at 296 children between 2 and 5 who had been diagnosed with ASD and 220 who had developed typically. Mothers were interviewed about their household pesticide exposure during pregnancy, as well as their folic acid and B vitamin intake. The team also linked data from California Pesticide Use reports, which provided important details about agricultural spraying, with the mothers’ addresses. The results […]

(Beyond Pesticides, August 31, 2017) Researchers at the University of California, Santa Barbara report in a new study that exposure to pesticides as a result of living near agricultural areas increases the risk of giving birth to a baby with abnormalities. These results are more significant for those exposed to very high levels of pesticides, underscoring the continued risks faced by farmworkers and farmworker families, especially mothers living near chemically-intensive treated fields. The study, “Agricultural pesticide use and adverse birth outcomes in the San Joaquin Valley of California,” looked at individual birth and demographic characteristics for over 500,000 birth observations between 1997 and 2011 in the agriculturally dominated San Joaquin Valley, California. The researchers, who report their findings as, “the most comprehensive to date, bringing together the largest data file ever compiled on street-address level birth outcomes and fine scale exposure to agricultural pesticides,” analyzed residential agricultural pesticide exposure during gestation, by trimester, and by toxicity influences on birth outcomes: birth weight, gestational length, or birth abnormalities. Adverse birth outcomes increased by 5–9% among those exposed to very high quantities of pesticides (e.g., top 5th percentile, i.e., ~4,200 kg per square mile applied over gestation). According to the results, “ The magnitude of effects were further enlarged […]

EU(Beyond Pesticides, August 16, 2017) Millions of eggs and egg products have been pulled from supermarket shelves in 15 countries in Europe after it was discovered that the eggs were contaminated with the insecticide fipronil. Now,  the European Commissioner in charge of food safety has called for a meeting of ministers and national regulatory agencies to discuss the widespread European contamination. However, fipronil is not allowed for use in food production in Europe, raising concerns over food safety and regulatory oversight. This incident reminds U.S. consumers about the disarray of the U.S. food safety system, as reported by the U.S. Government Accountability Office (GAO) in 2014. According to the GAO report, Food Safety: FDA and USDA Should Strengthen Pesticide Residue Monitoring Programs and Further Disclose Monitoring Limitations, there is a lack of government coordination on food safety and the U.S. Food and Drug Administration (FDA) does not test food for several commonly used pesticides with established tolerance levels. The report sounds an alarm that GAO began sounding  in the 1980’s in several reports that identify shocking limitations of  FDA’s approach to monitoring for pesticide residue violations in food. (See Beyond Pesticides’ coverage.) Since that report, FDA announced, then withdrew its announcement, […]

(Beyond Pesticides, June 14, 2017)  Oak trees in Iowa may be the latest victim of widespread chemical-intensive agriculture, according reports in the Des Moines Register. The newspaper indicates that the Iowa Department of Natural Resources (IDNR) has received roughly one thousand calls this spring from residents concerned about the state of their oak trees. Leaves are ‘tattered’ down to the vein, in an appearance one would first think was related to pest damage, according to the newspaper article. However, foresters with IDNR indicate the cause is likely the use of chloroacetanillide herbicides, which are applied throughout the state and region. Advocates say that this situation contributes to mounting environmental problems associated with chemical-intensive food production that support the need for the adoption of non-toxic weed management strategies. Past research has found associations between the use of chloroacetanillide herbicides, such as acetochlor and metolachlor, and oak leaf tatter syndrome. State officials indicate that the increase in resident complaints is likely related to a colder March, which may have retarded leaf development. By the time leaves began unfurling in early spring, herbicide use was at its height, leading to high ambient concentrations of the chemicals in the atmosphere, according to IDNR officials […]

(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, April 25, 2017) Past use of agricultural pesticides puts honey bees at risk across multiple growing seasons, according to research from scientists at Cornell University in New York. According to lead author Scott McArt, PhD, “Our data suggest pesticides are migrating through space and time.” Honey bees, which over the past decade have experienced unsustainable declines over 40% each year, are at great risk from exposure to a range of pesticides, chiefly the neonicotinoid class of insecticides. This new research adds to calls from beekeepers, environmental groups, and progressive farmers to transition agriculture away from pesticide-dependent practices. Cornell researchers conducted a massive study that analyzed both the pollen source and pesticide residue found therein for 120 experimental hives placed near 30 apple orchards in New York State. The landscapes surrounding each orchard were classified based on the amount of natural area or agricultural land that was present. Scientists analyzed risk to honey bees by collecting information about pesticide use during the growing season as well as the amount of pesticide contamination in “beebread,” pollen tightly packed unto pellets by bees used as food or in the production of royal jelly. “Beekeepers are very concerned about pesticides, but there’s […]

(Beyond Pesticides, April 7, 2017) On Wednesday, Earthjustice, representing the Natural Resources Defense Council (NRDC) and the Pesticide Action Network North America (PANNA) turned to the courts to order the U.S. Environmental Protection Agency (EPA) to ban chlorpyrifos. Their action comes on the heels of EPA Administrator Scott Pruitt’s decision last week to reject the conclusions of EPA scientists and reverse a proposed agency decision to revoke food residue tolerances of chlorpyrifos. In the new petition, the environmental groups assert that, “Because EPA has sidestepped this Court’s orders and failed to act on the substance of the petition, PAN/NRDC respectfully ask the Court to [give] EPA 30 days to act on its findings that chlorpyrifos exposures are unsafe and to establish deadlines for the next steps in the revocation and cancellation process.” In an interview with The Intercept, Patti Goldman, managing attorney of Earthjustice’s Northwest regional office in Seattle, WA, stated that, “It’s outrageous that the new EPA administrator would reject the scientific findings of its own agency and defy the law and court orders to keep this nasty pesticide on the market.” In its most recent analysis of chlorpyrifos, EPA determined that children between one and two years of age […]

(Beyond Pesticides, April 5, 2017) A new study, Occurrence of Neonicotinoid Insecticides in Finished Drinking Water and Fate during Drinking Water Treatment, has detected neonicotinoids, a class of insecticides known for their detrimental effects on bees, in treated drinking water. This marks the first time that these insecticides have been found in water sourced straight from the tap. Federal regulators have not yet addressed safe levels of neonicotinoids in drinking water, so at this point, any detection of these chemicals is cause for concern. The study authors “report for the first time the presence of three neonicotinoids in finished drinking water and demonstrate their general persistence during conventional water treatment.” Drinking water samples “collected along the University of Iowa treatment train” over a seven week period, May through July, 2016 directly after corn and soy planting, find three neonicotinoids, clothianidin, imidacloprid, and thiamethoxam at levels ranging from 0.24 to 57.3 ng/L (nanogams per liter). The University of Iowa tap water is run through a water treatment plant that uses conventional treatment methods.  In contrast, the Iowa City water treatment methods (granular activated carbon filtration) result in substantially lower levels of the neonicotinoids. Additionally, the researchers found that extensive transformation of clothianidin […]

(Beyond Pesticides, March 28, 2017) The U.S. Department of Agriculture (USDA) has abandoned its plans to test the U.S. food supply for the presence of glyphosate residues, according to a story from veteran reporter Carrey Gillam in The Huffington Post. The decision comes amid heated controversy over the carcinogenicity of glyphosate, which was cleared by a California judge for listing under California’s Prop 65 earlier this year. The federal government’s pesticide monitoring program, which is run jointly by USDA, the Food and Drug Administration (FDA), and the Environmental Protection Agency (EPA), was criticized by the Government Accountability Office (GAO) in 2014 for its failure to test for the widely used herbicide. In early 2016, Beyond Pesticides met with EPA regulators to discuss testing for glyphosate residues in the U.S. food supply. At the time, officials said that FDA was testing honey, and USDA would be conducting more extensive food testing beginning in 2017. USDA had tested soybeans for glyphosate residue in 2011, finding that 90% of samples contained residues between .26 ppm and 18.5 ppm, barely under the allowed food tolerance level of 20ppm. A 2014 Boston University study had indicated that both organic and conventional honey contained glyphosate concentrations despite […]

(Beyond Pesticides, March 15, 2016) An annual report using U.S. Department of Agriculture’s Pesticide Data Program residue data finds again this year that the crop grown in chemical-intensive agriculture with the most pesticide residues detected is strawberries. Spinach is number two, jumping from eighth place last year. The “Dirty Dozen” report, released annually by Environmental Working Group (EWG) since 2004, ranks produce grown with pesticides and confirms that organically grown food is the safer choice. While the report focuses on food residues, beyond raising consumer health concerns, it also raises social and environmental concerns associated with the purchase of conventionally  grown food, including farmer poisoning, water contamination and adverse effects to ecosystems and biodiversity, including pollinators. EWG’s EWG Shopper’s Guide to Pesticides in Produce™ finds that nearly 70 percent of samples of 48 types of conventional produce is contaminated with residues of one or more pesticides. USDA researchers find a total of 178 different pesticides and pesticide breakdown products on the thousands of produce samples analyzed. The pesticide residues remain on fruits and vegetables even after they are washed and, in some cases, peeled. “Even low levels of pesticide exposure can be harmful to infants, babies and young children, so when possible, parents and […]

(Beyond Pesticides, March 7, 2017) Another study, published by a team of French scientists in the journal Occupational and Environmental Medicine, links childhood behavioral problems to pyrethroid insecticide exposure. Synthetic pyrethroids are a class of insecticides that have increased in use over the past decade due to assumptions that they pose fewer risks to human health than older pesticide chemistries, such as organophosphates. However, this latest study is part of a growing body of research showing that pyrethroids share similar neurocognitive health concerns as these older pesticides. .   In this research, scientists investigate the interplay between pyrethroid exposure and behavioral problems through a longitudinal cohort study, which tracks levels of pyrethroid metabolites, or breakdown products, in the urine of mothers beginning between six and 19 gestational weeks and then in their children up through six years of age. Children’s behavior is measured through a screening questionnaire known as the Strengths and Difficulties Questionnaire (SDQ). SDQ measures how social a child is (altruism), whether the child has difficulty sharing problems or asking for help (internalizing disorders), as well as how defiant or disruptive a child is (externalizing disorders). The study controlled for a number of confounding factors, such as weight, education, location (rural or […]

(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, February 27, 2017)  Texas has been dealing with a feral hog issue for many years, however recently Texas Agriculture Commissioner Sid Miller approved the use of a toxic rodenticide in an effort to control feral hog populations, a decision hunters and trappers oppose because the pesticide will poison prey and wreak havoc on ecosystems where the hogs live. The estimated population of the feral hog population is about 1.5 million in the state of Texas, where they can cause extensive damage to property, crops, and native wildlife. Wild hogs have been considered to be one of the most destructive invasive species in the U.S. The feral hog population, close to six million, span 39 states and four Canadian provinces. Commissioner Miller, in announcing the widespread use of toxic pesticide referred to the problem as the “feral hog apocalypse.” Damage caused by wild hogs has been estimated to reach well into the millions. Smithsonian Magazine has reported the annual damage caused by feral hog populations to be around $400 million. The Texas Parks and Wildlife website states that hogs are opportunistic omnivores.  Feral hogs enjoy eating domestic agricultural crops, such as corn, soybeans, peanuts, potatoes, watermelons and cantaloupe. They can cause […]

(Beyond Pesticides, February 21, 2016) The Agriculture Committee in the U.S. House of Representatives approved a bill last week that will eliminate protections from toxic pesticides for the nation’s waterways. The bill now moves on to the full House for a vote and the public has an opportunity to let Representatives hear the concerns about weakening local protection of waterways from toxic pesticides. HR 953, The Reducing Regulatory Burdens Act (code for the sponsors and supporters as legislation to eliminate environmental protection of water quality), is the committee’s latest effort in a multi-year string of attempts to rollback common sense protections for the public waterways all Americans use for swimming, fishing, and other forms of recreation. The bill would repeal the Clean Water Act requirement that those who apply pesticides to waterways, with an exemption for farm use pesticides not directly deposited into waterways, obtain a National Pollutant Discharge Elimination System (NPDES) permit. Last May, at the height of fears over the Zika epidemic, the same Committee ushered through the same bill under another misleading name, The Zika Vector Control Act. Pensive lawmakers and the public saw through the ruse, and the bill was defeated. But, like previous iterations, including the 2015 Sensible Environmental […]

(Beyond Pesticides, February 13, 2017)  A study by the World Wildlife Fund (WWF) and others  attributes the reduced number of overwintering monarch butterflies –a reduction of 27% from last year—to herbicide use and other factors. The World Wildlife Fund (WWF), in conjunction with U.S. and Mexican environmental groups, has been leading the effort in tracking monarch butterflies.  Their recently released 2016-2017 study concluded that the population of monarch butterflies decreased 27 percent from last year’s population, which had marked an increase from dangerously low levels over the previous three years.  Overall, this marks an 80 percent decline in monarch population from the 1990’s.  Researchers have estimated that within 20 years the monarch butterfly migration could collapse altogether. The study was conducted in December of 2016 when the colonies of monarchs are expected to be at their peak population in Mexico.  Monarch populations are gauged by the area of land they inhabit, rather than counts of butterflies.   Thirteen butterfly colonies were observed, recorded and tracked using geographic information systems software.  The researchers found that the butterflies occupied 2.91 hectares of forest, which re presents a 27.43 percent decrease in population compared to the 4.01 hectares of forest they inhabited during the […]

(Beyond Pesticides, February 9, 2017) The failure of the U.S. pesticide regulatory system to protect marijuana users was highlighted as Health Canada announced Tuesday that it would begin conducting random pesticide residue testing of marijuana products to ensure that only registered products are being used in medical marijuana production. This comes on the heels of voluntary recalls in 2016 by two licensed Canadian cannabis producers due to the presence of the prohibited pesticides bifenazate, myclobutanil, and pyrethrins in or on marijuana products. Especially concerning is the detection of myclobutanil, a powerful fungicide that, when heated, converts to the hazardous gas hydrogen cyanide. The detection of these toxic chemicals in medical marijuana products is distressing since many users have compromised immune systems or health conditions that make them more susceptible to toxic chemicals. Moves by several states in the U.S. to curb illegal pesticide use in marijuana contain significant pitfalls and loopholes that allow contaminated cannabis to enter the market, where it threatens public health. Without examination of residues in inhaled, ingested, or absorbed cannabis, the user’s health is not protected by pesticide registration addressing other uses. In addition, environmental impacts associated with growing practices are generally ignored. On January 9th, […]

(Beyond Pesticides, February 7, 2017) After years of legal battle, the Colorado Court of Appeals last week affirmed a ruling that Colorado rancher, James Hopper, must serve two days in jail and pay a $7,500 fine for spraying pesticides that drifted unto his neighbor’s farm in violation of a 2012 court order protecting his neighbors. In 2012, organic farmers Rosemary Bilchak and her husband Gordon MacAlpine, were granted a permanent injunction prohibiting pesticide applications within 150 feet of the property line in order to reduce pesticide drift. Last week’s decision bolsters a legal precedent that wafting pesticides can constitute a trespass against which adjacent landowners and people with health sensitivities are protected. The legal battle began in 2011 when Mr. Hopper obtained his Colorado pesticide applicator’s license and applied the adulticide Fyfanon, which contains the organophosphate insecticide malathion, to kill mosquitoes on his property. However, the pesticide drifted onto Ms. Bilchak and Mr. MacAlpine’s organic vegetable farm. In 2012, a District Court Judge ruled that they have a right not to have their property invaded by other people or things, and prohibited Mr. Hopper from fogging for mosquitoes within 150 feet of his neighbor’s property or allowing the pesticides to drift, […]

(Beyond Pesticides, February 6, 2017) California Department of Pesticide Regulation (CDPR) rules that allow greater use of the highly toxic fumigant Telone, while decreasing protections for the public, have been challenged in California court. On January 31, attorneys representing Juana Vasquez, a farmworker in Ventura County, along with Californians for Pesticide Reform (CPR) and Pesticide Action Network North America (PANNA), filed suit in the Superior Court of California against the California Department of Pesticide Regulation (CDPR). The suit claims that CDPR failed to follow required public procedures in developing new rules for 1,3-Dicholopropene (1,3-D), which is an active ingredient in the product Telone and has many documented health risks, including cancer and kidney and liver damage. In October 2016, CDPR released new rules that allow the continued use of Telone and decrease protections for public health by permitting increased usage. CDPR and many news outlets reported the rule change as a tightening of the restrictions, but in reality, the new rules increase the previous annual cap from 90,250 pounds to 136,000 pounds per township, a defined area of 6×6 miles. These new rules went into effect on January 1, 2017, allowing for 1,3-D’s continued use in strawberry fields, vineyards, almond […]

(Beyond Pesticides, February 3, 2017) The Ruby Throated Hummingbird is the pollinator of the month for February. Hummingbirds are nature’s most nimble of birds. They are so quick and agile that most of the time all you’ll see is a flash of red and green before realizing you just encountered a Ruby Throated Hummingbird. This month’s pollinator is the most abundant species of hummingbird on the eastern half of North America. They are named after the coloration of ruby red feathers around their throat. Range The Ruby Throated Hummingbird is the most populous hummingbird found east of the Mississippi. They enjoy mild habitats such as pine and deciduous forests, and can also be found zipping around urban and suburban gardens and orchards.  Ruby Throated Hummingbirds “winter,” meaning they migrate to warmer parts of the globe during the colder winter months. They typically spend that time in parts of Central America and southern Mexico, but have been known to travel as far south as Costa Rica and the West Indies, according to Animal Diversity Web. They will often migrate without stopping, traveling distances as great as 1,600 km in one trip.  According to the Encyclopedia of Life, the hummingbird’s mating grounds are typically east of the 100th meridian in the […]

(Beyond Pesticides, February 2, 2017) A commonly used inert pesticide ingredient negatively affects the health of honey bees by making larvae more susceptible to a virus, according to a recently published study in the journal, Nature. One of the authors of the study, Julia Fine, PhD candidate, stated that the findings, “Mirror the symptoms observed in hives following almond pollination, when bees are exposed to organosilicone adjuvant residues in pollen, and viral pathogen prevalence is known to increase. In recent years, beekeepers have reported missing, dead and dying brood in their hives following almond pollination, and exposure to agrochemicals, like adjuvants, applied during bloom, has been suggested as a cause.” The study assessed honey bee larval development after exposure to a continuous low dose of Sylgard 309, a surfactant, in their diet. This organosilicone surfactant is commonly used on agricultural crops, including tree fruits, nuts, and grapes. Their results reveal that honey bee exposure to chemical surfactants such as Sylgard 309 led to higher levels of Black Queen Cell Virus and when the bee larvae were exposed to the surfactant and virus simultaneously, “the effect on their mortality was synergistic rather than additive.” This research comes at a time when […]

(Beyond Pesticides, February 1, 2017) Last week in North Miami, the City Council took a significant step that could reduce pesticide use in the community. The Council adopted an Integrated Pest Management (IPM) policy modeled after a plan developed by San Francisco in the mid-90’s. The plan does not ban pesticides and herbicides, but instead aims to reeducate citizens and county workers on least-toxic pest management strategies with the goal of eliminating toxic pesticide use on city property.  The IPM plan does not address pesticide use on private property, due to state preemption of local authority. With the passage of the North Miami’s resolution, city operatives will now be asked to give preference to available, safe and effective non-pesticide alternatives and cultural practices. As stated in the resolution’s Integrated Pesticide Management Program Guidelines, the goal of the policy is “to eliminate the application of all Toxicity Category I and Category II pesticide products by January 2018.” On top of eliminating certain pesticide categories, the resolution also calls for staff training and expert consultants, both of which have the potential to help ease the transition in pursuit of the 2018 goal, and priority will be given to efforts to reduce or eliminate pesticide use near […]