Archive for the 'Diflubenzuron' Category
28
Jul
(Beyond Pesticides, July 28, 2017) According to a report released earlier this month by the Coalition for Safer Food Processing and Packaging, a national alliance of leading public health and food safety groups, toxic, hormone disrupting, industrial chemicals have been found in 10 varieties of macaroni and cheese products. The coalition is calling on food companies, especially the Kraft Heinz Company, maker of the iconic boxed mac and cheese, to eliminate sources of these chemicals from their cheese products. The tested mac and cheese products contained elevated levels of phthalates, chemicals used in industrial processing of plastics, adhesives and rubber, among other things, as well as “inert” ingredients in pesticide products. The study tested 30 items of individual cheese products from various manufacturers that were purchased at retail grocery stores in the U.S and shipped to the lab, unopened, in their original packaging. The cheese product items tested include nine of Kraft’s many cheese products. Results found that nearly every cheese product tested contained 10 different phthalates, with six found in a single product. Eight of the nine Kraft mac and cheese products tested contained phthalates. DEHP, a phthalate currently banned in several countries, was found in 10 of the mac […]
Posted in contamination, Corporations | No Comments »
21
Jul
(Beyond Pesticides, July 21, 2017) A March 2017 review of studies on the agricultural use of glyphosate (the active ingredient in “Roundup” and other formulated herbicides) points to widespread persistence in soils subject to long-term, intensive glyphosate use, and myriad resulting concerns about impacts on soil and environmental health. The review, by Robert J. Kremer, PhD, of the University of Missouri School of Natural Resources, cites concerns that include: reduction of nutrient availability for plants and organisms; disruption to organism diversity, especially in the areas around plant roots; reductions of beneficial soil bacteria; increases in plant root pathogens; disturbed earthworm activity; reduced nitrogen fixing at plant roots; and compromised growth and reproduction in some soil and aquatic organisms. Globally, glyphosate is the most widely used herbicide compound: in 2017, worldwide use is estimated to be approximately 1.35 million metric tons. Use in the U.S. has risen dramatically — from 2.72–3.62 million kg in 1987 to approximately 108 million kg in 2014, and 15-fold since 1996, when genetically engineered (GE) glyphosate-tolerant crops were introduced. Use has grown for a number of reasons, including more-intensive use as resistance to the herbicide grows. Researchers have found that, after years of consistent application to […]
Posted in Agriculture, Beneficials, Biodiversity, Glyphosate, Monsanto, Uncategorized | No Comments »
20
Jul
(Beyond Pesticides, July 20, 2017) In its recently released 2017 Preliminary Aquatic Risk Assessment for Imidacloprid, the U.S. Environmental Protection Agency (EPA) found that this neonicotinoid insecticide is not only toxic to bees but also, is destroying life in the nation’s streams, rivers, and lakes. This assessment finds that aquatic invertebrates, especially aquatic insects basic to aquatic food chains, are sensitive to imidacloprid, and that current imidacloprid levels detected in streams, rivers, lakes, and drainage canals exceed acute and chronic toxicity endpoints. Impacts occur at low concentrations, and can result in decreased species abundance, altered predator-prey relationships, and reduced nutrient cycling. Impacts to other wildlife that depend on these species raise serious cause for concern. Comment by July 24 and tell EPA to cancel these neonicotinoids to protect sensitive species and ecosystems. See sample comment language, below. Clothianidin, thiamethoxam, and dinotefuran are too toxic for honey bees and native bees EPA also finds that the other neonicotinoids –clothianidin, thiamethoxam, and dinotefuran– pose risks to bees both on and around treated fields, but the agency has not evaluated risks from soil, surface water, or contaminated seed dust, which underestimates exposure risks and continues to put our native bees at risk. Clothianidin and thiamethoxam are […]
Posted in Environmental Protection Agency (EPA), neonicotinoids, Take Action, Uncategorized | No Comments »
10
Jul
(Beyond Pesticides, July 10, 2017) The state of California has listed glyphosate, the active ingredient in the popular Roundup, as a known carcinogen under its Proposition 65 law. This listing went into effect July 7, 2017. Now, state officials have to develop guidelines for product labels and determine what level of exposure to the pesticide will put people at risk for developing cancer. Some have argued that the state’s proposed levels are not protective enough. Meanwhile, the state continues to face pressure from Monsanto, maker of glyphosate, which continues to challenge the decision to list the chemical as a known cancer-causing agent. California’s decision to list glyphosate as a carcinogen was prompted by the International Agency for Research on Cancer’s (IARC) finding in 2015 that it is a “probable” human carcinogen. This classification was based on sufficient evidence of carcinogenicity in experimental animals. Later that year, California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) announced that it intended to list glyphosate as a cancer-causing chemical under California’s Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65). Under California law, Proposition 65 requires that certain substances identified by IARC be listed as known cancer-causing chemicals. Glyphosate’s listing became effective […]
Posted in California, Cancer, Glyphosate, Monsanto, Pesticide Regulation | No Comments »
06
Jul
(Beyond Pesticides, July 6, 2017) The Washington State Department of Ecology (Ecology) is evaluating a new permit application for the use of imidacloprid, a toxic neonicotinoid, to combat a growing native population of burrowing shrimp that threatens oyster beds in Willapa Bay and Grays Harbor in Washington state. The application was recently submitted to Ecology by a group of oyster farmers from the Willapa Grays Harbor Oyster Growers Association (WGHOGA), who “propose to use the pesticide to treat tide lands to support their aquaculture practices.” Imidacloprid is known to be toxic to bees and aquatic organisms, raising questions on the impacts of its use on the long-term ecological health of the bays. In April 2015, much to the dismay of activists and concerned local residents, Ecology approved a permit submitted by oyster farmers for the use of imidacloprid to combat burrowing shrimp in these aquatic ecosystems. But with a nationwide public outcry, the permit was withdrawn in May 2015. The recent request that was submitted differs in several ways from this 2015 permit, including: The new permit proposes treating 485 acres in Willapa Bay and 15 acres in Grays Harbor, compared to 2,000 acres combined from both water bodies in the 2015 permit. The oyster farmers […]
Posted in Aquaculture, Environmental Protection Agency (EPA), Imidacloprid, Invasive Species, neonicotinoids, Washington, Water | No Comments »
03
Jul
(Beyond Pesticides, July 3, 2017) A two-year long study conducted at 33 sites in multiple European countries to assess the effects of neonicotinoid (neonics) insecticides on three bee species in real-world environmental conditions confirms that these pesticides have a deleterious effect on bee survival. The study, the largest of its kind, explored the role of the agricultural use of neonics as seed coatings on bee health and fnds that the pesticides are persistent in the environment, contaminating pollen and nectar that bees forage, reducing colony fitness. The results of the study support ongoing calls for a ban on neonics, including a European Union (EU) wide ban proposed earlier this year. The new research, published in the prestigious peer-review journal Science, which was in part funded by Bayer and Syngenta – manufacturers of the pesticides, encompassed large field experiments to assess the effects of neonic-treated crops on various bee species –honey bees (Apis mellifera), bumble bees (Bombus terrestris), and solitary bees (Osmia bicornis)– across three European countries (Germany, Hungary and the United Kingdom). The study examines the impacts of clothianidin and thiamethoxam, the neonics frequently used as seed coatings of oil seed rape (canola), and used in the fields under study. […]
Posted in Agriculture, Clothianidin, neonicotinoids, Pollinators, Thiamethoxam | No Comments »
30
Jun
(Beyond Pesticides, June 30, 2017) Scott Pruitt, Administrator of the U.S. Environmental Protection Agency (EPA), met privately with Dow Chemical’s CEO several weeks before reversing EPA’s tentative decision to ban chlorpyrifos, according to records recently obtained by the Associated Press (AP). A copy of Mr. Pruitt’s schedule reveals he met with Dow CEO, Andrew Liveris, on March 9 at a Houston hotel and “twenty days later Pruitt announced his decision to deny a petition to ban Dow’s chlorpyrifos pesticide from being sprayed on food.” At a hearing this week, U.S. Senator Tom Udall (D-NM) pressed Mr. Pruitt to name a peer-reviewed study that indicates that chlorpyrifos is safe. Mr. Pruitt answered by saying that “he had relied on â€interagency dialogue’ with USDA [U.S. Department of Agriculture] before denying the petition to ban the chemical.” In a congressional hearing earlier this month regarding chlorpyrifos’ safety, Mr. Pruitt stated that his decision was founded on “meaningful data and meaningful science.” However, AP followed up with EPA to provide details on this science, and Mr. Pruitt’s office replied with quotes from trade groups and USDA, but failed to provide any scientific studies on the chemical’s safety. In March 2017, in an about-face, EPA’s Administrator […]
Posted in Chlorpyrifos, Dow Chemical, Environmental Protection Agency (EPA), Pesticide Regulation | No Comments »
27
Jun
(Beyond Pesticides, June 27, 2017) French Prime Minister, Edouard Philippe, is retaining the neonicotinoid (neonic) pesticide ban, which is set to go into effect in 2018 and is stronger than the current European Union restrictions on neonics. This decision follows a disagreement with French Agriculture Minister, Stephane Travert, who was in favor of relaxing the ban and told media outlets that he wants to address “the possibility of a number of exemptions until we find substitution products.” In July 2016, lawmakers in France approved plans to ban neonicotinoid pesticides by 2018, based on their link to declining populations of pollinators, specifically bees. The outright ban on neonicotinoid pesticides in France was adopted by a narrow majority of the country’s National Assembly, as part of a bill to protect biodiversity. In March 2017, the European Commission (EC) proposed a complete ban of agricultural uses of the widely used bee-toxic neonicotinoid pesticides across Europe under draft regulations. The EC cites neonicotinoids’ “high acute risks to bees.” In 2013, three neonicotinoids were temporarily banned because of concerns about their high toxicity to bees. A vote by member states is still being awaited. In 2013, the European Commission voted to suspend the use of the neonicotinoid pesticides […]
Posted in International, neonicotinoids | No Comments »
22
Jun
(Beyond Pesticides, June 22, 2017) On Tuesday, a lawsuit was filed in a Wisconsin federal court against Monsanto, the manufacturer of Roundup brand herbicides, and Scotts Miracle-Gro Company, a marketer of Roundup brand products. The complaint, filed by six consumers from states around the country, focuses on the promotion, marketing, and sale of Roundup brand products, rather than physical injury from the pesticide products. The lawsuit alleges that the Monsanto and Scotts label, advertise, and promote their Roundup products with the “false statement that Roundup’s active ingredient, glyphosate, targets an enzyme that is not found â€in people or pets.’” Plaintiffs assert that this is a false and deceptive claim, as this enzyme is found in the gut bacteria of people and pets and glyphosate can disrupt the health and functioning of their immune system. This suit follows on the heels of and mirrors the lawsuit filed by Beyond Pesticides and Organic Consumers Association in April 2017 against Monsanto for misleading the public by labeling the weedkiller Roundup as “target[ing] an enzyme found in plants but not in people or pets.” Monsanto aggressively markets Roundup as safe for humans and animals, despite newer studies indicating that glyphosate may be carcinogenic and affect […]
Posted in Glyphosate, Label Claims, Litigation, Monsanto, Scotts MiracleGro | No Comments »
12
Jun
(Beyond Pesticides, June 12, 2017) Once again, there are reports that soybean and cotton fields are being damaged by off-site drift of the toxic herbicide dicamba. Last summer, farmers in Missouri, Arkansas, and Tennessee reported widespread crop damage from dicamba drift, which led to reduced yields. The U.S. Environmental Protection Agency (EPA) launched a criminal investigation at several Missouri locations into what they said was the illegal spraying of dicamba in October 2016. This year, reports of dicamba drift and damage are already being reported in Arkansas, and 25 formal complaints have already been filed, according to the state Plant Board. In summer 2016, illegal applications of dicamba damaged thousands of acres of soybeans, cotton, ornamental trees and fruits and vegetables. After numerous complaints, EPA launched a criminal investigation into the illegal spraying of dicamba, an investigation that is still ongoing. Many suspect that farmers who planted Roundup Ready 2 Xtend® and XTENDFLEX® Cotton, the new dicamba-tolerant genetically engineered (GE) seeds in the region, when faced with a proliferation of pigweed, illegally sprayed dicamba across their fields leading to drift and off-site crop damage to other farmers. This year, although it is too early to say how many acres have been affected or what specific […]
Posted in Agriculture, Arkansas, BASF, Dicamba, Genetic Engineering, Monsanto, Pesticide Drift | No Comments »
09
Jun
(Beyond Pesticides, June 9, 2017) Last week, it was revealed that the inspector general for the U.S. Environmental Protection Agency (EPA) is investigating potential collusion on glyphosate-related matters between Monsanto and former EPA official, Jess Rowland. In a letter sent to U.S. Representative Ted Lieu, obtained by HuffPost, EPA Inspector General Arthur Elkins Jr. stated that he has asked the “EPA OIG Office of Investigations to conduct an inquiry into several agency glyphosate review-related matters.” According to Michael Hubbard, a retired Special Agent in Charge for the EPA’s criminal investigations division, in an interview with HuffPost, “Inspectors general have wide-ranging authority to investigate matters of corruption at federal agencies. With confirmation that the IG’s office is taking up a probe, it’s likely that IG investigators will begin interviewing Rowland’s former colleagues and bosses, pulling records and looking through his emails.” In March 2017, Congressman Lieu issued the following statement regarding the released files and questions on glyphosate safety. “Reports suggest that a senior official at the EPA worked to suppress a U.S. Department of Health and Human Services review of glyphosate, and may have leaked information to Monsanto. I believe that a Department of Justice investigation is warranted to look […]
Posted in Environmental Protection Agency (EPA), Glyphosate, Monsanto | 1 Comment »
07
Jun
(Beyond Pesticides, June 7, 2017) Fruit flies that developed a genetic resistance to the insecticide DDT have lower success at mating than those without similar changes, according to a study published last month in the journal Behavior Genetics. The results were surprising to researchers, given that the resistance developed through changes to a single allele (a variation of a single gene). “It is amazing that even if all the genes are exactly the same, having this one gene expressed at a higher level has all these effects,” said Professor Nina Wedell, PhD, of the Centre for Ecology and Conservation on Exeter’s Penryn Campus in Cornwall, UK to Phys.org. The study raises possible concerns about the effect of pesticide exposure to non-target (not the focus of pesticide use) insects that are integral to a healthy ecology and food web. In conducting their investigation, researchers studied the biological fitness costs associated with the development of an insecticide resistance gene. After scientists bred resistant flies in the lab, they set up a series of “competitive mating trials,” comparing both courtship behavior and the impact of size on male fruit flies’ mating success. In general, resistant males were found to be smaller than flies that […]
Posted in Chemicals, DDT, Resistance | No Comments »
05
Jun
(Beyond Pesticides, June 5, 2017) Following the recent proposed 10-year extension for the approval of glyphosate use in the European Union (EU), internationally recognized toxicologist Dr. Christopher Portier, Ph.D. has delivered a letter to the European Commission (the Commission), calling the scientific findings of these agencies into question. Dr. Portier is former associate director of the National Institute of Environmental Health Sciences (NIEHS) and director of NIEHS’ Office of Risk Assessment Research. According to the letter, both the European Food Safety Agency (EFSA) and the European Chemicals Agency (EChA) “failed to identify all statistically significant cancer findings in the chronic rodent carcinogenicity studies with glyphosate.” Previously, the Commission, which is in charge of the approval of glyphosate, was forced to issue a limited license extension for the chemical because member states could not reach a consensus. The Commission was holding out for further information on carcinogenicity, which was assessed by the ECHA, and whose report was issued in March 2017. According to ECHA’s most recent assessment, glyphosate is not carcinogenic. Dr. Portier asks that the evaluations by EFSA and EChA be “repeated for all toxicological endpoints and the data underlying these evaluations be publicly released.” Based on these failures in data analysis, […]
Posted in Cancer, Glyphosate, International, Monsanto | No Comments »
31
May
(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 […]
Posted in Agriculture, neonicotinoids, Pesticide Residues, Pollinators | No Comments »
30
May
(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 […]
Posted in Chemicals, neonicotinoids, Pesticide Regulation, Pollinators | No Comments »
24
May
(Beyond Pesticides, May 24, 2017) A Hawai’i woman is suing her former employer, DuPont Pioneer, stating that the company retaliated against her for bringing up concerns over pesticide safety. Shanbnell Grilho, who worked for DuPont Pioneer on Oahu’s North Shore, alleges the company required her to apply hazardous herbicides without the proper training or protection, and ultimately fired her after fabricating allegations against her. This lawsuit is the latest claim against multinational pesticide companies operating in Hawai’i, which have been at the center of local and state-level disputes over their use of toxic pesticides where Hawai’i residents live, work, and play. In her complaint, Ms. Grilho indicates that she began working at DuPont Pioneer as a temporary employee, during which time she was awarded a raise and named DuPont Pioneer employee of the month. At the time she did not have to apply pesticides. However soon after her award, she was hired as a full time employee and required to work with Roundup, Liberty, and Honcho herbicides, which contain the active ingredients glyphosate, glufosinate, and glyphosate, respectively. “DuPont Pioneer required plaintiff to apply herbicides and biocides while wearing a backpack sprayer, driving an ATV while applying herbicides with a backpack […]
Posted in Agriculture, Chemicals, Corporations, DuPont, Farmworkers, glufosinate, Glyphosate, Hawaii, Label Claims, Litigation, Pesticide Regulation, State/Local | No Comments »
19
May
(Beyond Pesticides, May 19, 2017) In spite of a growing body of evidence implicating glyphosate in a wide range of human illnesses and environmental impacts, the European Union (EU) plans to propose a 10-year extension for the approval of glyphosate use. Previously, the European Commission (the Commission), which is in charge of the approval, was forced to issue a limited license extension for the chemical because member states could not reach a consensus. The Commission was holding out for further information on carcinogenicity, which was assessed by the European Chemicals Agency (ECHA), and whose report was issued in March 2017. According to ECHA’s assessment, glyphosate is not carcinogenic. Glyphosate is the active ingredient in Monsanto’s Roundup brand of weed-killers, and research by the World Health Organization’s International Agency for Research on Cancer (IARC) has found that it is a probable human carcinogen. Since IARC’s findings were released, Monsanto has made several efforts to discredit the research of this well respected, international body, including attempting to influence government agencies. According to a Bloomberg BNA article, “The commission will discuss with EU member nations the prospect of a 10-year reauthorization, said Anca Paduraru, spokeswoman for the commission.” Once the Commission proposes the […]
Posted in Alzheimers's, Cancer, Chronic Kidney Disease, Glyphosate, Liver failure, Monsanto, non-Hodgkin's Lymphoma, Obesity, Reproductive Health | No Comments »
18
May
(Beyond Pesticides, May 18, 2017) A pesticide reduction plan proposed by investors in the Dr. Pepper Snapple Group (DPS) lacks a positive vision that could accomplish the investors’ goals. The shareholder proposal at DPS, which makes Mott’s, 7UP, Snapple, and Canada Dry, was filed by the Green Century Equity Fund, a company that offers environmentally and socially responsible mutual funds, seeks to pressure DPS to reduce toxic pesticide use in its supply chain. According to their press release, the shareholder proposal suggests that DPS “use quantitative metrics to track the amount of pesticides avoided, publish goals to reduce pesticide use or toxicity, and/or provide incentives to growers to minimize the use of pesticides.” However, the shareholder group could better achieve its goals by asking that DPS use certified organic ingredients. Beyond Pesticides has long sought a broad-scale marketplace transition that does not simply reduce or minimize pesticide use, but prohibits the application of toxic synthetic pesticides by law and promotes the widespread transition of conventional farmland to organic production, which is protective of health and the environment. Certified organic production, with its requirement of a detailed organic system plan and methods to foster and improve soil health, achieves the elimination […]
Posted in Agriculture, Corporations, Label Claims, Litigation | No Comments »
16
May
(Beyond Pesticides, May 16, 2017) Buried in the spending bill passed earlier this month to avert a government shutdown is a provision that allots $3 million for a federal outreach campaign promoting agricultural biotechnology and genetically engineered (GE) crops. The bill tasks the U.S. Food and Drug Administration (FDA), in coordination with the United States Department of Agriculture (USDA), to use these funds, “for consumer outreach and education regarding agricultural biotechnology and biotechnology-derived food products and animal feed…” According to the Washington Post, Democrats in Congress made a failed bid to move the funding towards FDA-run pediatric medical projects, but faced unanimous Republican opposition. Under the provision, FDA and USDA will spend taxpayer money to create, “science-based educational information on the environmental, nutritional, food safety, economic, and humanitarian impacts of such biotechnology, food products, and feed.” If such an endeavor were made truly in the public interest, educational materials produced by these agencies would reveal significant adverse effects in every listed topic. GE crops, particularly those engineered to tolerate continuous applications of herbicides like glyphosate, are damaging to the environment. Significant increases in herbicide use as a result of these crops has been linked to the loss of milkweed habitat […]
Posted in Corporations, Federal Agencies, Genetic Engineering, Monsanto, National Politics, Take Action, Uncategorized | No Comments »
11
May
(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 […]
Posted in Bayer, Clothianidin, Environmental Protection Agency (EPA), Litigation, neonicotinoids, Pesticide Regulation, Thiamethoxam, Uncategorized | No Comments »
05
May
(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 […]
Posted in Announcements, Corporations, neonicotinoids, Pollinators, Uncategorized | No Comments »
04
May
(Beyond Pesticides, May 4, 2017) This week, a study released in the Proceedings of the Royal Society found evidence of reduced egg development and impact on feeding behavior in wild bumblebee queens after exposure to the neonicotinoid thiamethoxam. The study, led by researchers from the University of London, investigates the impact of field-relevant levels of thiamethoxam exposure on four wild species of bumblebee queens. In a BBC News article, lead author, Dr. Gemma Barron, Ph.D., stated, “We consistently found that neonicotinoid exposure, at levels mimicking exposure that queens could experience in agricultural landscapes, resulted in reduced ovary development in queens of all four species we tested. These impacts are likely to reduce the success of bumblebee queens in the spring, with knock-on effects for bee populations later in the year.” The study focuses on sublethal effects of neonicotinoids, as wild bumblebees are more likely to be exposed to low doses of these chemicals, rather than higher lethal levels. The queen bumblebees of four species were collected in the spring of 2014, with a total of 506 being used in the initial study groups. These queens were divided into three treatment groups and exposed to either a high level, low level, or no […]
Posted in neonicotinoids, Pollinators, Thiamethoxam, Wildlife/Endangered Sp. | No Comments »
03
May
(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, […]
Posted in Pollinators, Thiamethoxam, Uncategorized | No Comments »