(Beyond Pesticides, October 23, 2018)  The Chief Minister of the Sikkim state in northeast India, Pawan Chamling, addressed a news conference in the Italian Parliament on October 15 to issue a call for a complete, global transition to organic agriculture by 2050. Citing the increasing dangers of climate disruption and its impacts, Mr. Chamling said that such conversion to pesticide- and petrochemical-free practices would reduce carbon emissions by 50%. The call for banning pesticides in communities and countries nationwide is gaining increasing traction, as the shift to organic land management is increasing exponentially. The town of Mals, Italy (93 square miles in area, encompassing ten villages and hamlets, as well as farmland, home to 5,092 people) passed a ban on a ballot initiative with 75% in favor and 69% of the electorate voting. In 2013, the country of Bhutan adopted completely organic practices  throughout its nation. Although not affecting agricultural pesticide use, towns across the U.S. are adopting measures that stop pesticide use community-wide. Ordinances in the cities of Ogunquit, South Portland, and Portland, Maine and the City of Takoma Park, Maryland are examples of city-wide pesticide bans. A petition in Switzerland calls for the banning of pesticides country-wide. States in northeast India — […]

(Beyond Pesticides, October 19, 2018) Pollinator advocates and the Center for Biological Diversity (CBD) are imploring the U.S. Environmental Protection Agency (EPA) to deny Bayer CropScience’s application for use of “Sivanto,”a pesticide product with the active ingredient flupyradifurone, a chemical the company claims is safer for bees, but poses the same risks at the notorious bee-toxic neonicotinoid insecticides. If approved, Sivanto would be sprayed in tobacco-growing states along 300,000 acres in the southeast U.S., areas home to more than three dozen species protected under the Endangered Species Act (ESA). Bayer’s proposal for expanded uses comes after EPA’s own assessment indicated risks to endangered species, and despite the fact that the agency has not undergone an ESA mandated consultation with federal wildlife agencies. For the countless flying insects, birds, and bats already under significant threat from neonicotinoids, adding another systemic insecticide to the mix will only make the situation worse. Bayer AG is characterizing flupyradifurone as being harmless to honeybees. However, flupyradifurone, being a systemic pesticide, can negatively impact many non-target species.  In fact, flupyradifurone impacts honey bee brains in a similar way to neonicotinoids, as it impairs learning, memory and the honey bees’ affinity for nectar rewards. Advocates worry that growing […]

(Beyond Pesticides, October 11, 2018) Healthy, stable populations of bees and butterflies are best preserved in farm fields that are certified organic, according to an extensive, three-year study conducted by Swedish researchers at Lund University. The research, published last month in the journal Biological Conservation, highlights the benefits that organic farms provide pollinators by improving floral resources and forgoing the use of toxic pesticides. The data continues to support the need for a broad-scale conversion to more sustainable organic practices in the U.S. and internationally. “This is the first large-scale study over the course of several years to show that organic farming has a consistent, stabilizing effect on pollinator diversity,” says Romain Carrié, PhD, a postdoctoral researcher at CEC. Researchers recorded observations of bumblebees, butterflies and flowering plant species at 10 organic and 9 conventional farms throughout Sweden for three years. Farms were compared across type, including cereal fields, temporary grasslands, and semi-natural grasslands. The study aimed to observe the spatio-temporal aspects (continuity of the number of different species in space and time) of pollinators and flowering species in these fields. Results of the study found that, overall, organic farms had and sustained a higher rate of floral, bee, and butterfly […]

(Beyond Pesticides, October 10, 2018) Nearly one-third of General Mills shareholders called on the company last month to improve product stewardship and eliminate pesticides like bee-toxic neonicotinoid insecticides or the probable carcinogenic weed killer glyphosate from its supply chain. The proposal was put forward by nonprofit organization As You Sow, and Green Century Equity Fund (GCEF), a mutual fund. This is the latest public shareholder action GCEF has made in regards to corporate pesticide reform, with the company previously putting pressure on the Dr. Pepper Snapple Group for its allowance of pesticides within its supply chain. While the actions are encouraging, some advocates are urging shareholder groups to go beyond increased accountability and transparency and push companies to focus on sourcing organic to ensure that no pesticides make their way into food products. The shareholder proposal ultimately garnered support from 31% of General Mills shareholders. “Shareholders believe the company can, and should, do more to protect the health of their supply chain and the public from toxic pesticides,” said Christy Spees, environmental health program manager at As You Sow to the StarTribune. The proposal states, “While the company asserts that it is currently ‘document[ing] continuous improvement’ concerning environmental impacts from its supply […]

(Beyond Pesticides, October 5, 2018) The Oregon Department of Agriculture (ODA) is temporarily banning the use of any products containing the herbicide aminocyclopyrachlor to rights-of-way after finding widespread tree deaths along a scenic highway that cuts across the center of the state. While Oregon is the first state to ban the chemical, it is not the first instance of the pesticide killing stands of established, otherwise healthy trees. In 2014, chemical company DuPont settled a class action lawsuit totaling over $1.8 million in civil penalties after its aminocyclopyrachlor product Imprelis was cited for misbranding and failure to report adverse incidents of trees dying after applications. Oregon first encountered evidence of abnormal growths, curling, and die-backs of coniferous trees along roadsides back in 2012. A report on tree damage produced by ODA in 2015 narrowed the cause down to the use of aminocyclopyrachlor-based herbicides, including DuPont’s Imprelis, as well as Bayer’s Perspective. At the time, ODA indicated the U.S. Forest Service (USFS) had sent letters to the agency requesting the cessation of aminocyclopyrachlor use along roadsides. Oregon officials indicate that the contractor did stop spraying the chemical in areas cited in the report. An update to the first report, published in […]

(Beyond Pesticides, October 3, 2018) REMINDER: The Fall 2018 NOSB public comments are due by Thursday, October 4, 2018. Your comments and participation are critical to the integrity of the organic label. Written comments may be submitted through Regulations.gov  until 11:59 pm ET October 4, 2018. Reservations for in-person and webinar comments close at the same time. The proposals of the National Organic Standards Board (NOSB), as a part of its ongoing review of practices and materials, are published for public comment. On our Keeping Organic Strong page, Beyond Pesticides will be providing the public with a listing and analysis of the issues under consideration of the Board when it meets in Saint Paul, MN on October 24 – 26, 2018. You can view USDA’s announcement of the NOSB’s meeting and proposals here. Issues before the NOSB include materials allowed in organic production as well as some policy issues. Materials are either the subject of petitions or the subject of sunset review (concerning whether to be allowed for another 5 years). To be allowed, materials must have evidence summarized in the proposals that they meet the OFPA requirements of essentiality, no adverse effects on humans and the environment, and compatibility with organic practices. […]

(Beyond Pesticides, October 2, 2018) The U.S. Environmental Protection Agency (EPA) is asking an appeals court to rehear a case that previously ruled EPA must immediately ban the brain-harming pesticide chlorpyrifos. The agency is requesting the U.S. Court of Appeals for the Ninth Circuit in San Francisco convene an “en banc hearing,” which is a session held in front of the all judges in the court, rather than a panel of three judges.  An “en banc” request is generally only accepted when an issue conflicts with a previous court decision, or is of significant importance for the general public. The move by EPA, now under the purview of Acting Administrator Andrew Wheeler, is the latest attempt by the agency to keep the highly toxic organophosphate insecticide on the market. It marks a continuation of the policy approach taken by former Administrator Scott Pruitt, who famously met with Dow Chemical’s CEO Andrew Leveris weeks before EPA reversed course on chlorpyrifos. Under the Obama administration, the agency announced its intent to cancel agricultural uses of chlorpyrifos due to strong evidence of harm to the brain and proper development of children. This move itself was the result of a petition and hard fought […]

(Beyond Pesticides, September 27, 2018) The U.S. Environmental Protection Agency’s (EPA) Office of the Inspector General (OIG) released a report finding the agency’s practice of routinely granting “emergency” approval through its Section 18 program for pesticide use does not effectively measure risks to human health or the environment. The inspector general recommends EPA “develop and implement applicable outcome-based performance measures to demonstrate the human health and environmental effects of the EPA’s emergency exemption decisions.” EPA disagreed with the recommendation, leaving the issue of chronic overuse of the emergency exemptions unresolved. Under Section 18 of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the EPA has the authority to approve the temporary emergency use of unapproved pesticides if the agency determines the pesticide is needed to prevent the spread of an unexpected outbreak of crop-damaging insects, for example. But this provision has been widely abused. OIG’s report finds “significant deficiencies in the OPP’s online database management, in its draft Section 18 emergency exemption standard operating procedure and application checklist, and in its reports to Congress and the Office of Management and Budget.” Specifically, the report notes EPA, “does not have outcome measures in place to determine how well the emergency exemption process […]

(Beyond Pesticides, September 21, 2018) Monsanto, now an integrated unit of Bayer AG, is asking Superior Court Judge Suzanne Bolanos to reverse the verdict, reduce the award, or grant a new trial for the company after a jury determined that a California groundskeeper contracted non-Hodgkin’s lymphoma from spraying glyphosate for years. Dewayne Johnson, who maintained the grounds of a California Bay-area school district, was awarded $289 million by a jury, which found that Monsanto acted with “malice or oppression.” Mr. Johnson’s case was the first of its kind to go to trial – fast tracked based on the severity of his illness – but over 8,000 similar lawsuits are pending in U.S. courts. Bayer’s Monsanto claims that the verdict does not reflect the scientific data. “While we are sympathetic to Mr. Johnson and his family, glyphosate is not responsible for his illness, and the verdict in this case should be reversed or set aside,” Bayer said in a September 18 statement. While Bayer contends that glyphosate does not result in individual applicators contracting cancer, this view is at odds with a 2015 designation from the International Agency for Research on Cancer (IARC), which determined the chemical is a probable carcinogen, […]

(Beyond Pesticides, September 18, 2018) While climate change campaigners have long warned of increased pest pressure as a result of a warming planet, new research published in Science has begun to envisage the true extent of this expanding crisis for agriculture and crop yields. An Earth warmed by 2 degrees Celsius will see significant increases in insect metabolism and population growth, increasing global food scarcity. The study underlines the need to move towards more sustainable agricultural models that can better handle pests and other stressors brought about by climate change. Scientists focused their models on the three staple crops that comprise over 40% of calories consumed worldwide – rice, corn, and wheat. Pest impacts were considered for a variety of scenarios, including a world warmed by 2 °C from Earth’s current global mean surface temperature. The Paris Climate Accords aims to limit warming to 1.5 °C, but with uncertainty around the U.S. pulling out of the voluntary agreement, the model produced by researchers represents a very possible scenario. The results paint a grim picture for global food security and nutrition, with pest-related losses expected to increase by 19% for rice, 31% for corn, and 46% for wheat. The trajectory boarders […]

(Beyond Pesticides, September 17, 2018) The Fall 2018 NOSB meeting dates have been announced and public comments are due by October 4, 2018. Your comments and participation are critical to the integrity of the organic label. Written comments may be submitted through Regulations.gov  until 11:59 pm ET October 4, 2018. Reservations for in-person and webinar comments close at the same time. The proposals of the National Organic Standards Board (NOSB), as a part of its ongoing review of practices and materials, are published for public comment. On our Keeping Organic Strong page, Beyond Pesticides will be providing the public with a listing and analysis of the issues under consideration of the Board when it meets in Saint Paul, MN on October 24 – 26, 2018. You can view USDA’s announcement of the NOSB’s meeting and proposals here. Issues before the NOSB include materials allowed in organic production as well as some policy issues. Materials are either the subject of petitions or the subject of sunset review (concerning whether to be allowed for another 5 years). To be allowed, materials must have evidence summarized in the proposals that they meet the OFPA requirements of essentiality, no adverse effects on humans and the […]

(Beyond Pesticides, September 7, 2018) As the marijuana industry gears up for exploding markets created by the increasing number of states that permit medical and/or recreational cannabis use, the quality of marijuana products is emerging as an important issue for patients and consumers. Beyond Pesticides identified this concern back in the winter of 2014–2015, and pointed to the importance of organic production practices for the emerging industry. As of July 1, California’s mandated testing of cannabis became effective, and initial results are in. New Frontier Data CEO Giadha Aguirre de Carcer is pointing to those results as a threat to the medicinal cannabis market. She notes that 84% of 2016 product batches tested were found to harbor pesticide residue; and that in the recent California round of assays, 20% failed established standards due to contamination from pesticides, bacteria, or processing chemicals, and in some cases, inaccurate labeling. Ms. de Carcer, speaking to attendees at the Benzinga Cannabis Capital Conference in Toronto recently, said that cannabis producers must reduce the pesticide contamination in their products, at the very least because of consumer concerns that will translate to the marketplace. At that conference, she said, “Those are troublesome figures. . . . When we […]

(Beyond Pesticides, September 4, 2018) Close on the heels of the recent landmark California decision against Monsanto, maker of the glyphosate-based pesticide Roundup, Vietnam has demanded that the company pay damages to the many victims of its Agent Orange herbicide and defoliant, which Monsanto supplied to the U.S. military during the Vietnam War. (Monsanto was not the only U.S. manufacturer of the compound; there were nine in total.) U.S. forces, in a program dubbed Operation Ranch Hand, used more than 13 million gallons of the compound in Vietnam — nearly one-third of the 20 million gallons of all herbicides used during the war in Laos, Cambodia, and Vietnam. In Vietnam alone, 4.5 million acres were impacted by Agent Orange. Nguyen Phuong Tra, a spokesperson for Vietnam’s foreign ministry, said, “The [U.S.] verdict serves as a legal precedent which refutes previous claims that the herbicides made by Monsanto and other chemical corporations in the U.S. and provided for the U.S. army in the war are harmless. . . . Vietnam has suffered tremendous consequences from the war, especially with regard to the lasting and devastating effects of toxic chemicals, including Agent Orange.” Around the world, the U.S. case may be sparking […]

(Beyond Pesticides, August 27, 2018) Beyond the visual and audial charms of some bird species, insect-eating birds play a significant role in controlling pests that can ruin crops or ravage forests. A meta-study by Martin Nyffeler, Ph.D. of the University of Basel in Switzerland finds that globally, birds annually consume 400-plus million metric tons of various insects, including moths, aphids, beetles, grasshoppers, crickets, and other arthropods (invertebrate organisms with exoskeletons, paired and jointed appendages, and segmented bodies, such as insects, crustaceans, and spiders). This research reviews 103 studies that examine the volume of insects consumed by various birds in seven of the world’s major biomes. In consuming such volumes of insects that can inflict damage on crops, trees, and other plants on which organisms may feed or otherwise depend, birds provide significant services to ecosystems, to denizens of habitats, and to human food system and economic interests; they also keep local ecosystems in balance. Threats to birds — and thus, to those ecosystem services — include those from pesticide use. Of the 10,700 known bird species distributed across the planet, more than 6,000 are primarily insectivorous. The study indicates that forest-dwelling birds consume the majority of insects (approximately 300 million metric […]

(Beyond Pesticides, August, 20, 2018) Health Canada’s Pest Management Regulatory Agency (PMRA) has announced a plan to phase out the outdoor use of two neonicotinoid insecticides — thiamethoxam and clothianidin — over three to five years, due to concerns about their effects on aquatic invertebrates. This comes after their 2016 proposal to phase out another neonicotinoid, imidacloprid, for the same concerns, but the proposal has not been finalized. In April, the European Union (EU) voted to ban the most widely used neonicotinoids, citing risks to bees. Earlier this year, PMRA proposed to phase out a number of uses of neonicotinoids in order to mitigate risks to pollinators. And now, after the Canadian agency initiated a special review based on a preliminary analysis of available information on the concentrations and frequency of detection of clothianidin in aquatic environment, the agency has proposed another round of phase-outs. The agency’s review focused on assessing potential risk to aquatic invertebrates exposed to clothianidin applied as a seed, foliar or soil treatment. The assessment finds that, in aquatic environments in Canada, clothianidin and thiamethoxam are both being measured at concentrations that are harmful to aquatic insects. These insects, according to the agency, are an important part of […]

(Beyond Pesticides, August 14, 2018) A federal judge in Brazil has ordered the suspension of the most widely used pesticide in the world, glyphosate. Under the ruling, new products may not be registered in the country until the Brazilian government reevaluates the herbicide’s toxicity. Glyphosate (Roundup) is used widely in Brazil on genetically engineered (GE) crops, which have been subject of concern in the country. This decision preceded a jury verdict last Friday in San Francisco that handed a 46-year-old groundskeeper $289 million for compensatory and punitive damages associated with his non-Hodgkin lymphoma tied to glyphosate/Roundup exposure. Monsanto, glyphosate’s manufacturer saw its stock plunge 14%, or approximately $11 billion, the next day, according to Bloomberg News. Monsanto told the Wall Street Journal that it would appeal the decision. According to Therecorder, “So far, more than 4,000 people have sued over Roundup, most in Missouri and California state courts. About 470 cases have been coordinated in California federal court as multidistrict litigation.” The San Francisco case was heard first because of the plaintiff’s poor health. The judge in Brasilia ruled on August 3, 2018 that new products containing the chemical could not be registered in the country and existing registrations would be […]

(Beyond Pesticides, August 10, 2018) The U.S. Environmental Protection Agency (EPA) must ban a widely used organophosphate pesticide linked to brain damage in children, the 9th Circuit Court of Appeals ruled yesterday. The appellate court ordered EPA to finalize its proposed ban on chlorpyrifos, produced by DowDupont, based on undisputed findings that the pesticide is unsafe for public health, and particularly harmful to children and farmworkers. The ruling comes in a lawsuit brought by a coalition of labor and health organizations, represented by Earthjustice. In the absence of EPA action, states have started to stand up. In May, the state legislature in  Hawaii passed legislation, which took effect in May, to become the first state to ban the chemical. On July 30, the California Department of Pesticide Regulation (DPR) released its scientific assessment concluding that the organophosphate insecticide, chlorpyrifos, should be listed as a Toxic Air Contaminant (TAC) in the state based on evidence of its neurological effects and exposure risks of concern. Legislation is also pending in Congress to ban chlorpyrifos and similar pesticides nationwide. Chlorpyrifos is a dangerous nerve agent pesticide that can damage the developing brains of children. Prenatal and early life exposure to chlorpyrifos is linked to lower birth weight […]

(Beyond Pesticides, August 9, 2018) Last week, the Massachusetts legislature failed to pass legislation that would have restricted the use of neonicotinoid pesticides in the state in order to protect sensitive pollinators, but advocates vow to campaign for a victory in the next legislative session. H. 4041, would have restricted neonicotinoid uses to certified applicators only. Massachusetts beekeepers lost 65 percent of honey bee hives this year, a rate 25 percent higher than the national average. H. 4041, An Act to Protect Massachusetts Pollinators, introduced in 2017, failed to make it to the floor before the end of the legislative session, which ended July 31. The bill gained the support of more than 100 Massachusetts scientists and academics who sent a letter to the Joint Committee on Environment, Natural Resources and Agriculture in support. Over 180 scientists, businesses, beekeepers, farmers, and conservationists formally endorsed this bill to restrict neonicotinoid use to licensed applicators. The Massachusetts County Beekeepers Association worked to organize an extensive grassroots advocacy movement in support of the bill. H.4041 would have placed “common-sense” restrictions on unlicensed use of neonicotinoids. It would require neonicotinoids to be used by licensed or certified applicators, and would also limit the use […]

(Beyond Pesticides, August 8, 2018) On July 30, the California Department of Pesticide Regulation (DPR) released its scientific assessment concluding that the organophosphate insecticide, chlorpyrifos, should be listed as a Toxic Air Contaminant (TAC) in the state based on evidence of its neurological effects and exposure risks of concern. This comes after the 2017 decision by the U.S. Environmental Protection Agency (EPA) reversed its decision to ban the dangerous chemical after intervention by its manufacturer. Decades of scientific data show that chlorpyrifos damages fetal brains and produces cognitive and behavioral dysfunctions, particularly in utero and in children. Even at low levels of exposure chlorpyrifos can impact the developing fetus in pregnant women resulting in impaired learning, change in brain functions, and alter thyroid levels of children into adulthood. A study conducted by the Columbia University Center for Children’s Environmental Health (CCCEH) found that chlorpyrifos in umbilical cord blood samples corresponded with a decrease in the psychomotor and mental development in three-year olds. Additional data collected by CCCEH researchers demonstrated that children exposed to high levels of chlorpyrifos experience developmental delays, attention deficit, hyperactivity, as well as other pervasive developmental disorders. But despite this, and the advice of the agency’s own scientists, EPA, under the direction […]

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

(Beyond Pesticides, August 3, 2018) Documents made public in late July show that the U.S. Environmental Protection Agency (EPA) let Monsanto write its own rules after farmers and the public raised red flags over crop damage and contamination caused by its new line of dicamba herbicides. As part of the discovery process initiated by a lawsuit against EPA’s approval of its new dicamba product, called “XtendiMax with Vapor Grip Technology,” emails released (start at p. 147) show Monsanto line-editing regulations first proposed by EPA. This is only the latest in a long string of instances where EPA has worked hand in glove with the agrichemical industry it is charged with overseeing. When the new regulations were released, Beyond Pesticides’ noted broad criticism that the changes will not adequately address the damage caused by this new herbicide. The newest product in the agrichemical industry’s predictable trajectory toward increasingly toxic cropping systems, XtendiMax was developed to be sprayed on corn and soy genetically engineered to tolerate the herbicide. As its flagship Roundup Ready products have failed to control resistant weeds in farm fields throughout the U.S., Monsanto and others in the agrichemical industry continue to reach back towards older, more toxic pesticides […]

(Beyond Pesticides, August 2, 2018) Weed scientists from the University of Missouri (UM) have just published evidence of a water hemp population resistant to six different herbicides. The study is sending shock waves throughout the chemical-intensive agricultural community, particularly in light of the plant’s resistance to 2,4-D. In its reporting on the study, KTIC Rural Radio begged the question, “If we’re already seeing 2,4-D resistance now, what will happen when use of the herbicide becomes even more commonplace?” KTIC is referring to the impending commercialization of products like Enlist Duo, developed by DowDupont in an attempt to address widespread weed resistance to glyphosate. Enlist Duo is an herbicide containing both glyphosate and 2,4-D, and is intended to be sprayed only on crops genetically engineered (GE) to tolerate exposure to both chemicals. However, with growing reports like this, many farmers may begin to rethink their approach. In 2014, a farmer contacted UM indicating that water hemp was not responding to 2,4-D during a regular ‘burndown’ the farmer conducted before planting a new crop. (Chemical-intensive farmers will often use a synthetic herbicide to clear their field for new plantings.) The farmer had also used other herbicides, fomesafen and glyphosate, in this process […]

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