Archive for the 'Agriculture' Category
24
Mar
(March 24, 2013 Beyond Pesticides) A study by an entomologist at Iowa State University in Ames Iowa found that western corn rootworm is now resistant to two varieties of Bt-incorporated genetically engineered (GE) maize and that resistant insects are likely to be cross-resistant. This study adds to the growing scientific literature that shows insect resistance to Bt crops is making certain GE technologies obsolete, which could lead to an increase in insecticide use. The study, Field-evolved resistance by western corn rootworm to multiple Bacillus thuringiensis toxins in transgenic maize, conducted by a team led by Aaron Gassmann, PhD, adds to the growing scientific literature that that finds western corn rootworm  is resistant to varieties of Bt-incorporated GE maize. In 2009, farmers in Iowa observed severe injury to Cry3Bb1 maize —one of the three varieties of Bt-incorporated GE maize- from larval western corn rootworm in the field. Subsequent laboratory assays reveal that this injury is associated with rootworm resistance to  Cry3Bb1. This study finds that injury to Cry3Bb1 maize because of rootworm resistance persisted beyond 2011 and expanded to include mCry3A maize, a second variety of Bt-incorporated GE maize. Laboratory analysis of western corn rootworm from these fields finds resistance to […]
Posted in Agriculture, Bt, Chemicals, Genetic Engineering, Resistance | 1 Comment »
20
Mar
(Beyond Pesticides, March 20, 2014)””Today, more than 500,000 signatures were delivered to U.S. Environmental Protection Agency (EPA) Administrator Gina McCarthy, urging the nation’s top-ranking environmental leader to protect bees and other pollinators. The date marks the one-year anniversary of the lawsuit filed against EPA by beekeepers, food, and environmental groups, including Beyond Pesticides, over the continued allowance of two bee-toxic pesticides: clothianidin and thiamethoxam. It also marks the two-year anniversary of the emergency legal petition filed against the agency on this same issue. EPA has yet to take serious action to address dramatic bee declines. The pesticides in question are a class of systemic insecticides known as neonicotinoids. Despite numerous studies linking neonicotinoids with bee kills, colony collapse, and weakened immune systems, EPA continues to operate under an alarmingly slow registration review process for these insecticides, one that extends to 2018. Honey bees are responsible for producing one in every three bites of food we eat, but research increasingly shows they are being harmed by the indiscriminate use of neonicotinoids, both alone and in combination with other pesticides. It is the job of the EPA to review such pesticides for safety and to take action if they are found to […]
Posted in Agriculture, Chemicals, National Politics, neonicotinoids, Pesticide Regulation, Pollinators | No Comments »
13
Mar
(Beyond Pesticides, March 13, 2014) Part deux of a 2012 study finding that sperm counts in French men had decreased 30% over the past 16 years came to a second startling conclusion in a 2014 analysis: the cause for those dramatic decreases may be pesticides. 2012 Sperm-Count Study Published in the scientific journal Human Reproduction, the landmark 2012 study showed an alarming 30 percent decrease in sperm counts across France between 1989 and 2005. Because the data for the 2012 study were drawn from Fivnat ””a French assisted reproduction technology database”” researches made sure to limit analysis to 26,600 sperm samples from otherwise virile 35-year-old men whose partners’ fallopian tubes were either blocked or missing. This control was added to ensure that the each couple’s infertility was due to these latter problems and not a problem with the man’s sperm. Broken down, the 2012 studies identified a 1.9 percent continued annual dip in sperm concentration and also found that there was a significant 33.4% decrease in the percentage of normally formed sperm over the entire 16-year period. At the time of release, the 2012 study’s authors wrote: “To our knowledge, it is the first study concluding a severe and general […]
Posted in Abamectin, Agriculture, DDT, Endocrine Disruption, International, Reproductive Health | No Comments »
10
Mar
(Beyond Pesticides, March 10, 2014) New data finds that organic farmers are growing increasingly concerned with genetically engineered (GE) crops cross-pollinating and contaminating their fields. This contamination can lead to serious economic losses for organic farmers and has created tension between neighbors. The data comes at a critical time as USDA is advancing the notion that “coexistence” between GE and non-GE growers  presents no problems for the  organic market.  USDA has been widely criticized in organic circles because its decisions to deregulate numerous GE crops  place  the burden of reducing contamination on non-GE growers. A survey,released by Food and Water Watch and Organic Farmers’ Agency for Relationship Marketing (OFARM), finds that a third of U.S. organic farmers have experienced GE contamination in their fields due to the nearby use of GE crops, while over half of these growers have had loads of grain rejected because of unwitting GE contamination. These rejections can lead to big income losses for farmers, with a  median cost of approximately $2,500 per year, according to the  survey. Additionally,  several farmers report annual losses of over $20,000 due to the need to establish buffer zones, while limit the threat of contamination from their neighbors by taking […]
Posted in Agriculture, Alternatives/Organics, Contamination, Genetic Engineering, National Organic Standards Board/National Organic Program | No Comments »
07
Mar
(Beyond Pesticides, March 7, 2014) Forty Minnesota beekeepers have called on the state’s Department of Agriculture to suspend the use of corn seeds treated with bee-killing neonicotinoid pesticides, now one of the most ubiquitously used insecticides nationwide. Their move follows a commitment by two Minnesota state agencies to study the impact of neonicotinoid pesticides, which””given mounting research implicating neonicotinoids in bee declines””beekeepers claim do not go far enough. Minnesota beekeeper Steve Ellis, owner of Old Mill Honey Co., expressed the petition’s rationale to MPRNews, “Beekeepers in Minnesota last year and in years previous have been reporting mortality events at corn seeding time,” said Mr. Ellis, who has about 2,500 hives in Barrett, Minn. “Apparently the dust is getting off of the corn seeding and going off site and causing poisoning of honey bees on flowers and around their hives.” The petitioners represented more than 10 percent of managed honey bees in the state with a total of 40,000 hives. But many, like Mr. Ellis, are contracted to provide pollinator services to crops around the nation, not just in Minnesota. These crops include cherries, blueberries, pumpkins, apples, and almonds. In California, the $3-billion almond industry spends $239 million annually to rent […]
Posted in Agriculture, Chemicals, Minnesota, neonicotinoids, Pesticide Regulation, Pollinators, State/Local | No Comments »
04
Mar
(Beyond Pesticides, March 4, 2014) The United States Department of Agriculture (USDA) recently committed to providing financial assistance to farmers and ranchers in five Midwestern states to improve and create bee-friendly habitat. This project comes as American beekeepers have continued to experience rapid colony declines with losses over the winter over 30 percent per year. The creation of pollinator-friendly habitat is an important step to slowing pollinator losses, however this project does not challenge the expansion of agriculture into current pollinator habitat, the use of systemic pesticides that are linked to pollinator decline, or the widespread adoption of genetically engineered crops with elevated use of herbicides that kill habitat. USDA’s Natural Resources Conservation Service (NRCS) will provide $3 million in technical and financial assistance to farmers and ranchers to create and improve bee friendly habitat in five Midwestern states. Ranchers can qualify for assistance to reseed pastures with alfalfa, clover and other plants that bees forage.  NRCS will also assist ranchers in building fences, installing water tanks and other changes to better move cattle between pastures so as not to wear down vegetation. Farmers can also qualify for funds to plant cover crops, and bee friendly forage in boarders and […]
Posted in Agriculture, Chemicals, Genetic Engineering, Michigan, Minnesota, neonicotinoids, North Dakota, Pollinators, South Dakota, State/Local, Wildlife/Endangered Sp., Wisconsin | No Comments »
03
Mar
(Beyond Pesticides, March 3, 2014) Advancing Sustainable Communities: People, pollinators and practices, the 32nd National Pesticide Forum, will be held April 11-12, 2014 at Portland State University, in Portland, OR. This years’ forum will focus on solutions to the decline of pollinators and other beneficials; strengthening the organic food production system; regulating and right-to-know genetically engineered food; improving farmworker protection and agricultural justice; and creating healthy buildings, schools and homes. Join top scientists, local and national activists and grassroots organizers to strategize on solutions that protect health and the environment. For more information and to register, go to www.beyondpesticides.org/forum. In addition to the program, people,  science, sharing and strategizing, you won’t want to miss the  food! Organic food and beverages will be served for breakfast, lunch and dinner Saturday, and we will have organic hors d’oeuvres, beer and wine for receptions on Friday and Saturday night. Speaker highlights include: Longtime leader in sustainable and organic agriculture, Fred Kirschenmann; “Maverick” Scientist Michael Skinner, Ph.D., author of the landmark study that links exposure to DDT with multi-generational effects, ultimately contributing to obesity three generations down the line; Goat herder Lani Malmberg, who uses her heard of over 2,000 goats to manage invasive […]
Posted in Agriculture, Alternatives/Organics, Announcements, Environmental Justice, Events, Farmworkers, Integrated and Organic Pest Management, Invasive Species, Lawns/Landscapes, Litigation, National Politics, Oregon, Pesticide Regulation, Pollinators | No Comments »
28
Feb
(Beyond Pesticides, February 28, 2014) A report released last week by the U.S. Department of Agriculture (USDA) considers the trends of genetically engineered (GE) crops over the past 15 years, since they were first introduced. Responding to increasing GE use, USDA also points to major concerns such as increasing herbicide resistance and higher levels of herbicide use as major potential threats to human health and the environment. The report comes as USDA and the U.S. Environmental Protection Agency (EPA) are poised to  approve  new forms of GE corn and soybeans designed to be resistant to 2,4-D products,  one of the active ingredients in Agent Orange and a known carcinogen. Released  by USDA’s Economic Research Service (ERS) on February 20, the report not only details the trends in GE use but also the known and unknown threats that GE crops pose. The number of GE varieties approved by USDA’s Animal and Plant Health Inspection Service (APHIS) grew exponentially between 1984 and 2002, the report said. Today the majority of GE crops, corn and soy, are grown on the nation’s largest farms. In 2013, more than 169 million acres of GE crops were planted in the U.S., comprising half of all cropland. […]
Posted in 2,4-D, Agriculture, Chemicals, Genetic Engineering, Glyphosate | No Comments »
27
Feb
(Beyond Pesticides, February 27, 2014) Beyond Pesticides joined Center for Food Safety (CFS), Public Employees for Environmental Responsibility (PEER), and Center for Biological Diversityearlier this week in filing a formal petition for rulemaking with the U.S. Department of the Interior (DOI). The petition demands that the U.S. Fish and Wildlife Service (FWS), the DOI bureau tasked with managing and regulating the system of National Wildlife Refuges (NWRs) across this country, establish better protections for wildlife and their habitat by prohibiting the use of genetically engineered (GE) crops and neonicotinoid pesticides in NWRs as well as other necessary policy changes. The petition asserts that the allowed cultivation of GE crops and use of neonicotinoid pesticides on lands designated as NWRs violates not only the purpose and protective standards of the National Wildlife Refuge Act (NWRA), which seeks to conserve, manage and restore fish wildlife, and plant resources and their habitats for the present and future generations, but also threatens endangered species by resulting in destruction of critical habitat protected under the Endangered Species Act (ESA). Specifically, pollen from GE crops drift and contaminate related wild plants and natural crops. There is also the problem that GE crops are overwhelmingly engineered for […]
Posted in Agriculture, Contamination, Genetic Engineering, Litigation, National Politics | 12 Comments »
26
Feb
(Beyond Pesticides, February 26, 2014) The French agriculture ministry is prosecuting Emmanuel Giboulot, an organic winemaker, for failing to apply insecticide to his vines. The ministry wants insecticide to be sprayed to control the leafhopper Scaphoideus titanus, believed to be responsible for the spread of the grapevine disease, but Mr. Giboulot believes the pesticide is ineffective and damaging to pollinating insects such as bees, and insists the disease can be fought via more natural means. Emmanuel Giboulot appeared before a judge in the city of Dijon on Monday after defying an official order to treat his vineyard against an insect suspected of transmitting a devastating plant disease, and risks six months in jail for failing to take preventive measures against a bacterial vine disease. He was fined €1,000 for putting neighboring vineyards at risk. The court’s final verdict will be announced on April 7. Mr. Giboulot, an organic and biodynamic winemaker, was found to be in violation of a directive to use pesticides to fight Flavenscence dorĂ©e, an infectious disease spread by the leaf hopper, Scaphoideus titanus that threatens the CĂ´te-d’Or region of Burgundy. An estimated 30 acres of vines were destroyed by the disease in 2012. “Would we give […]
Posted in Agriculture, Alternatives/Organics, Chemicals, International, Pesticide Regulation, Pollinators, Pyrethrin | 2 Comments »
24
Feb
(Beyond Pesticides, February 24, 2014) The U.S. Environmental Protection Agency (EPA) last week released its long-awaited proposal to update Farm Worker Protection Standards (WPS),  which are designed to provide protections from pesticide exposure for more than two million farmworkers and their families across the nation.  Historically, farmworker advocates have criticized these protections as woefully inadequate in protecting the health of agricultural workers, but these new revisions attempt to strengthen the standards through increased training for workers handling pesticides, improved notification of pesticide applications, and a higher  minimum age requirement for children to work around pesticides. Farmworkers face disproportionate risks to pesticide exposures, with EPA stating that pesticide exposure incidents are vastly under-reported —in some case by as much as 90 percent. Although these proposed changes are a step in the right direction, there are still ongoing concerns about whether the changes will be adequate to protect workers. Revisions to the 20 year old standard have been under discussion for many years. In 2010, EPA released a document proposing WPS that would determine ways to increase training, improve safety requirements, provide clear emergency information, and create strong protection for applicators. However, EPA documents distributed during a November 2012 Pesticide Program […]
Posted in Agriculture, Chemicals, Farmworkers, National Politics, Pesticide Drift, Pesticide Regulation | No Comments »
21
Feb
(Beyond Pesticides, February 21, 2014) A new study published in the journal Nature investigating two infectious diseases ””deformed wing virus (DWV) and the fungal parasite Nosema ceranea”” finds that they could be spreading from honey bees to bumblebees, dramatically shortening the lifespan of the wild bumblebees. The study gives credence to recent research demonstrating that pesticide use compromises immune system functioning, dramatically raising their susceptibility to diseases. The study, Disease associations between honeybees and bumblebees as a threat to wild pollinators,  suggests that managed, highly-dense populations of honey bees, are breeding grounds for pathogens which may then be transmitted to bumblebee populations. But unlike honey bees, infected bumblebees are much more affected by the disease, with their lives shortened by  six full days. “To put it into context, in the field a bumblebee worker lives 21 days,” said co-author Mark Brown, PhD., of Royal Holloway, University of London. “For every bee that has this virus, you’re losing about a third or a quarter of all the food it would bring back to the nest to help the nest grow.” Additionally, while honey bee hives have tens of thousands of worker, bumblebee hives have only hundred at most. The study, underlines […]
Posted in Agriculture, Alternatives/Organics, Announcements, Farmworkers, National Politics, Pesticide Regulation, Pollinators, Wildlife/Endangered Sp. | 1 Comment »
19
Feb
(Beyond Pesticides, February 19, 2014) Over 30 environmental and consumer groups in New York are protesting new language in the state’s proposed budget that strips away the requirement that commercial pesticide applicators report where pesticides are used, what kind of pesticides they use and how much. The new reporting regulation will require that sales are recorded at the register, instead of where they are applied, eroding the public’s right-to-know. The law has allowed the public access to summary pesticide  use information at the zip code level, and granted researchers access to confidential pesticide use for analysis. However, the proposed rules, written into the state’s Executive Budget proposal, dramatically restructures the state’s Pesticide Sales and Use Reporting Law, stipulating that the annual pesticide reporting summary release detailed sales – not use – data by county. Opponents of the change say that where things are sold are not necessarily where they are used. The inability to  identify where pesticides are used in the state will undercut the ability to track  associated environmental and health effects. “It will impede the public’s ability to learn about toxic chemical uses where they work, live and play,” said Peter Iwanowicz, executive director of Environmental Advocates of […]
Posted in Agriculture, Breast Cancer, Chemicals, Disease/Health Effects, New York, Pesticide Regulation, State/Local | 1 Comment »
18
Feb
(Beyond Pesticides, February 18, 2014) On Valentine’s Day, Beyond Pesticides, Pesticide Action Network, and Center for Food Safety, represented by Earthjustice, submitted detailed comments to state officials urging them to stop approving pesticides linked to bee declines. The groups also underscored larger problems with the Department of Pesticide Regulation’s inability to complete evaluations of pesticides after five years. “California officials are rushing to approve yet another systemic bee-harming pesticide before they fully understand the range of impacts,” said Jay Feldman, executive director of Beyond Pesticides and one of the groups that also filed federal comments. “After five years of evaluation, state officials continue to rubber stamp new products that are known to harm bees,” said Paul Towers, Organizing & Media Director for Pesticide Action Network. “The problem is urgent and unless California officials take swift action, they put California’s food system and agricultural economy at risk.” A growing body of independent science links a class of pesticides called neonicotinoids (“neonics”) to bee declines, both alone and in combination with other factors like disease and malnutrition. Oregon officials determined the neonic dinotefuran was the cause of two massive bee kills in the state last year. In the letter submitted on Friday, […]
Posted in Agriculture, California, Chemicals, dinotefuron, Litigation, neonicotinoids, Pesticide Regulation, Pollinators, State/Local | 1 Comment »
13
Feb
(Beyond Pesticides, February 13, 2014) French scientists from the University of Caen have revealed one more layer of the myth behind so-called “inert” ingredients in pesticides, concluding that pesticide risk assessments that focus exclusively on active ingredients substantially underestimate the potential hazards of the product as a whole. The findings in Major pesticides are more toxic to human cells than their declared active principles indicate that inert ingredients in pesticides can magnify the effects of active ingredients, sometimes as much as 1,000-fold. In conducting their study, Robin Mesnage,  Ph.D.  and  his team of scientists, including Gilles-Eric Seralini,  exposed three human cell lines to the active ingredients of three herbicides, three insecticides, and three fungicides. The team then exposed the cell lines to the well-known commercial formulations that include these active ingredients which also contained “inerts,” and compared the results. Overall the study concluded that the commercial combinations had a magnifying effect on the toxicity of the active ingredients. While many might assume  that three insecticides tested ranked highest in toxicity, the study actually ranked fungicides as having the highest on-average toxicity, followed by herbicides, then insecticides. Leading the pack for on-average toxicity in the herbicides was the well-known Monsanto product, […]
Posted in Agriculture, Chemicals, Glyphosate, Inerts | 2 Comments »
07
Feb
(Beyond Pesticides, February 7, 2014) Flying in the face of  recent science demonstrating that pollinator populations are declining, the U.S. Environmental Protection Agency (EPA) has made the decision to unconditionally register another pesticide that is known to be highly toxic to bees, coming almost one year after EPA registered sulfoxaflor, disregarding concerns from beekeepers and environmental groups. The announcement, posted in the Federal Register on Wednesday, set tolerances for the pesticide cyantraniliprole in foods ranging from almonds and berries, to leafy vegetables, onions, and milk. EPA establishes the allowable limit of the chemical residue, called tolerances, based on what EPA considers ”˜acceptable’ risk.  EPA’s ruling details that “there is a reasonable certainty that no harm will result from aggregate exposure to the pesticide residue,” despite all evidence that cyantraniliprole is toxic to bees and harmful to mammals. Ignoring beekeeper warning and concerns on their impacts to bees, EPA has given the green light for cyantraniliprole after recently registering sulfoxaflor.  In July 2013, beekeepers filed suit against EPA for their decision to register sulfoxaflor when it failed to demonstrate that it will not cause any ”˜unreasonable adverse effects on the environment’ as required by the Federal Insecticide, Fungicide, and Rodenticide Act […]
Posted in Agriculture, Chemicals, Pesticide Regulation, Pollinators, Sulfoxaflor | No Comments »
06
Feb
(Beyond Pesticides, February 6, 2014) We know that pesticides and bees don’t mix and that particular pesticides, such as neonictinoids, pose significant threats to bee populations worldwide, but a recent study conducted by researchers at Pennsylvania State University have identified that it is “the mix” of the many chemicals in the environment that pose a significant threat to honey bee survival. Looking at the four most common pesticides detected in pollen and wax –fluvalinate, coumaphos, chlorothalonil, and chloropyrifos, Wanyi Zhu and other researchers have assessed the toxic impacts of these pesticides on honey bee larvae at real world exposure levels; that is, levels that are found in existing hives outside of a laboratory. But these researchers go beyond the usual one-chemical analysis in their study,  Four Common Pesticides, Their Mixtures and a Formulation Solvent in the Hive Environment Have High Oral Toxicity to Honey Bee Larvae. Rather than just looking at the pesticides in their individual, out-of-the-bottle form, they also mixed them up and broke them apart. Why did they take this mixed-up approach? “Recently, one hundred and twenty-one different pesticides and metabolites were identified in the hive with an average of seven pesticides per pollen sample, including miticides, insecticides, […]
Posted in Agriculture, Chemicals, Chlorothalonil, Chlorpyrifos, Coumaphos, fluvalinate, Pesticide Regulation, Pollinators | 1 Comment »
03
Feb
(Beyond Pesticides, February 3, 2014) Prompted by the prolific threat of contamination of organic agriculture by genetically engineered crops, the Organic Seed Growers and Trade Association (OSGATA) recently published a comprehensive guide to help  organic seed growers maintain the integrity of organic seed. The publication comes just weeks after the U.S. Supreme Court ruling to limit the ability of farmers to legally defend themselves against genetic drift in a landmark federal lawsuit OSGATA et al. vs. Monsanto. The publication, entitled Protecting Organic Seed Integrity, provides organic farmers, seed handlers, and seed companies an array of resources they can employ to maintain organic integrity through crop specific, scale-appropriate strategies. In addition, the handbook provides guidance on testing protocols for crops that are particularly risky, that is, crops with GE counterparts that are approved by the U.S. Department of Agriculture, including corn, soy, cotton, alfalfa, canola, sugar beets, and squash. “The risk to organic farmers by GE contamination is real,” said Maine organic seed farmer, Jim Gerritsen, OSGATA President. “Organic farmers continue to be failed by the government. This new handbook is an important tool for farmers to protect themselves and the organic seed supply.” With widespread planting of genetically engineered crops, […]
Posted in Agriculture, Alternatives/Organics, Contamination, Genetic Engineering | 1 Comment »
30
Jan
(Beyond Pesticides, January 30, 2014) With the U.S. House of Representatives’ passage of the Agriculture Act of 2014 (commonly known as the Farm Bill) yesterday, conventional farming allies and chemical agribusiness dealt a dangerous blow to children’s health protections and offered up yet another reason for consumers everywhere to support organic. The behind-closed-door amendment to the Farm Bill that appeared in neither the pre-conference House or Senate-passed versions of the Bill available to the public, orders the U.S. Environmental Protection Agency (EPA) to ignore its ruling that levels of fluoride left in food treated with the toxic fumigant sulfuryl fluoride are unsafe for consumers everywhere, especially children and infants. Looking at the Numbers Under the Food Quality Protection Act (FQPA), a law designed to provide stronger protections for infants and children from pesticides, EPA must consider the aggregate dose that children receive from pesticide residues along with the other “nonpesticidal” sources. In the case of sulfuryl fluoride, a fumigant used in closed structures such as barns, storage buildings, commercial warehouses, ships in port, and railroad cars and thus also found on their stored contents like grains and other crops, this is an important consideration because other sources of fluoride abound […]
Posted in Agriculture, Chemicals, Corporations, Dow Chemical, National Politics, Pesticide Regulation, sulfuryl fluoride | 1 Comment »
28
Jan
Beyond Pesticides, January 28, 2014) In the latest attempt to suppress the voice of local communities and scuttle the implementation of laws to protect health and the environment, last week a bill was introduced in the Hawaii State House of Representatives that will preempt (block) local governments from restricting the use of hazardous pesticides and genetically engineered (GE) crops. Though House Bill 2506 is being promoted as the expansion of the state’s “Right-to-Farm Act,” the bill will prevent the implementation of new laws recently passed in Kauai and Hawaii County. Kauai Councilman Gary Hooser explained to The Garden Island, “Both of these bills take away 100 percent of the authority of the county to regulate agriculture, which includes pesticides. It is without question an attempt to nullify Ordinance 960 (formerly Bill 2491), as well as the ordinance passed on the Big Island.” Local communities in the Hawaiian Islands fought a number of hard-won battles last year against intrusions by agrichemical companies spraying pesticides and planting GE crops near where they work, live, and go to school. After massive outpourings of public support, numerous late-night council sessions, and overcoming a mayoral veto, Kauai County passed Bill 2491. Kauai’s Ordinance 960 requires […]
Posted in 2,4-D, Agriculture, Chemicals, Genetic Engineering, Hawaii, Pesticide Drift, Pesticide Regulation, State/Local | No Comments »
22
Jan
(Beyond Pesticides, January 22, 2014)  Exposure to a widely used pesticide causes worker bumblebees to grow less and then hatch out at a smaller size, according to a new study by Royal Holloway University of London. The research, published this week in the Journal of Applied Ecology, reveals that prolonged exposure to a pyrethroid pesticide, which is used on flowering crops to prevent insect damage, reduces the size of individual bees produced by a colony. The researchers, Gemma Baron, Dr Nigel Raine and Professor Mark Brown from the School of Biological Sciences at Royal Holloway worked with colonies of bumblebees in their laboratory and exposed half of them to the pesticide. The scientists tracked how the bee colonies grew over a four month period, recording their size and weighing bees on micro-scales, as well as monitoring the number of queens and male bees produced by the colony. “We already know that larger bumblebees are more effective at foraging. Our result, revealing that this pesticide causes bees to hatch out at a smaller size, is of concern as the size of workers produced in the field is likely to be a key component of colony success, with smaller bees being less […]
Posted in Agriculture, Chemicals, Pollinators | No Comments »
21
Jan
(Beyond Pesticides, January 21, 2013) Two Minnesota state agencies are creating plans they say will  address declining pollinator populations in the state. The Minnesota Department of Natural Resources (DNR) is developing best management practices for managing and increasing pollinator habitat and the Minnesota Department of Agriculture (MDA) is developing a plan to study the impacts of neonicotinoid pesticides on pollinators. Critics of the state’s plan say that there is no more need to study the effects of neonicotinoids because the negative impacts they have on pollinators has been already studied extensively. The DNR is developing guidelines to improve habitat for pollinator insects. Recent reports show that  the planting of herbicide-resistant genetically engineered (GE) crops is responsible for habitat loss and the decline of native pollinators like the Monarch butterfly. The expansion of glyphosate tolerant GE corn and soybean cropland has allowed farmers to kill milkweed, the primary source of food for Monarchs, which historically grew between crop rows in the Midwest. A rapid expansion of farmland ””more than 25 million new acres in the U.S. since 2007”” has also eaten away grasslands and conservation reserves that supplied the Monarchs with milkweed. DNR officials have indicated this guide could change […]
Posted in Agriculture, Chemicals, Minnesota, neonicotinoids, Pollinators, State/Local, Wildlife/Endangered Sp. | 1 Comment »
17
Jan
(Beyond Pesticides, January 17, 2014) A new economic study, Would banning atrazine benefit farmers?, published in the International Journal of Occupational and Environmental Health demonstrates that eliminating the herbicide atrazine, widely used on U.S. corn crops, will economically benefit corn growers. The study examines the research produced by the Atrazine Benefits Team (ABT), a group assembled by atrazine manufacturer Syngenta, revealing that the industry-funded studies significantly overestimate the benefits of atrazine without considering the value of nonchemical weed management techniques. Research, led by Frank Ackerman, PhD., professor at Tufts University in the Global Development and Environment Institute, questions the economic viability of atrazine in Syngenta’s study. Researchers critically review five papers released by ABT in 2011, which claim that the withdrawal of atrazine would diminish corn yields by 4.4%, increasing corn prices by 8%. Using these assumptions, Dr. Ackerman and his team calculated that corn growers’ revenue would actually increase by 3.2%, providing a total of $1.7 billion to farmers and the U.S. economy with minimal price changes for consumers. In short, because of price elasticity, eliminating atrazine would improve farmer revenues. According to the study, “The result [of an atrazine ban] would be an increase in corn growers’ revenues, […]
Posted in Agriculture, Atrazine, Chemicals, Corporations, Resistance, Syngenta, Water | 1 Comment »