Author Archive
09
Apr
(Beyond Pesticides, April 9, 2010) U.S. Representative Edward J. Markey (D-Mass), Chairman of the Energy and Environment Subcommittee of the Energy and Commerce Committee, yesterday called for a ban on many applications of the antimicrobial chemical triclosan ””which is found in many consumer soaps and countless other products ranging from toys to lipstick. Rep. Markey called for the ban in conjunction with the release of correspondence from the Food and Drug Administration (FDA) and the Environmental Protection Agency (EPA) that raise serious concerns regarding the use of the chemical triclosan. In response to the FDA and EPA letters, Chairman Markey also announced plans to introduce legislation that will accelerate the evaluation and regulation of substances such as triclosan that may harm the human endocrine system. “Despite the fact that this chemical is found in everything from soaps to socks, there are many troubling questions about triclosan’s effectiveness and potentially harmful effects, especially for children,” said Chairman Markey. In January 2010, Chairman Markey sent letters of concern regarding triclosan to FDA and to EPA. In FDA’s response letter to Chairman Markey, the FDA stated that, “existing data raise valid concerns about the [health] effects of repetitive daily human exposure to these […]
Posted in Antibacterial, Pesticide Regulation, Triclosan | No Comments »
08
Apr
(Beyond Pesticides, April 8, 2010) The U.S. Environmental Protection Agency (EPA) is requiring new restrictions on aluminum and magnesium phosphide products in an attempt to better protect people, especially children, from dangerous exposures. The new restrictions prohibit all uses of the products around residential areas and increase buffer zones for treatment around non-residential buildings that could be occupied by people or animals from 15 feet to 100 feet. Human exposure to these toxic chemicals, though slightly minimized, would nevertheless continue because of their continued availability for use on athletic fields and playgrounds, around non-residential buildings, and in agricultural production. Phosphide fumigants are known to be highly acutely toxic when ingested or inhaled. Symptoms of mild to moderate acute exposure include nausea, abdominal pain, tightness in chest, excitement, restlessness, agitation and chills. Symptoms of more severe exposure include diarrhea, cyanosis, difficulty breathing, pulmonary edema, respiratory failure, tachycardia (rapid pulse) and hypotension (low blood pressure), dizziness and/or death. Aluminum and magnesium phosphide fumigants are used primarily to control insects in stored grain and other agricultural commodities. They also are used to control burrowing rodents in outdoor agricultural and other non-domestic areas. The fumigants are restricted to use by specially trained pesticide applicators. […]
Posted in aluminum phosphide, Children/Schools, Fumigants, magnesium phosphide, Pesticide Regulation, Phosphine, Rodenticide, Rodents | No Comments »
07
Apr
(Beyond Pesticides, April 7, 2010) Although the city stopped using chemical pesticides in much of its public spaces nearly four decades ago, village officials expect to pass a resolution prohibiting their use on public property, including parks, fields and playgrounds. The hope is that the local law, once publicized, will have a trickle-down effect on private property owners. “If we can do it, why can’t people do it on their own lawn?” the village president, Douglas Newman, asked last week. On April 1, at Meadowland Park, village officials and local and state environmentalists unveiled a sign featuring a ladybug that will soon be posted in the village’s 10 parks, fields and playgrounds. James McGowan, of the South Orange Environmental Commission, which is credited with spearheading the village’s initiative, said inorganic pesticides and their use still pose a danger. “There is some serious effects from these things,” he said. “People have good alternatives,” such as integrated pest management, which uses biological controls, such as plants that are resistant to common pests.” The village’s program, he said, “brings together a lot of environmental initiatives.” Eric Benson, canvass director for the New Jersey Environmental Federation, said the benefit of announcing the plan right […]
Posted in Lawns/Landscapes, New Jersey | 1 Comment »
06
Apr
(Beyond Pesticides, April 6, 2010) A new report analyzing regulations from California’s 25 top agricultural counties finds that many counties do more to protect crops than children from potentially harmful pesticide drift. The report, Pesticide Protection Zones: Keeping Kids Safe at School, finds that eleven counties have no protection zones around schools at all, while another six only limit spraying when school is in session. By contrast, the report notes that nearly 25% of the counties have larger pesticide buffer zones for crops than for schools. “It seems insane to have stringent rules protecting nuts and peaches while schoolchildren remain at risk from chemicals that can cause cancer, birth defects, and other serious health problems,” said Paul Towers, director of Pesticide Watch Education Fund and a co-author of the report. “But that’s exactly what’s happening in counties across California. It is past time for a simple, statewide rule that protects all California children from pesticide drift at school.” “Our children deserve to be protected from these cancer-causing chemicals,” said Assembly member SandrĂ© Swanson, who has introduced AB 1721, the Health and Safety School Zones Act, to fix the problem. “The people of California have made it clear that clean air […]
Posted in California, Children/Schools | 1 Comment »
05
Apr
(Beyond Pesticides, April 5, 2010) Baseball should be green, not sending a toxic green message to homeowners. The first pitch of the new baseball season will be thrown this week under a cloud created by Major League Baseball’s (MLB) new partnership with Scotts Miracle-Gro, which promotes seed and treatment products that are unnecessarily chemical-intensive and undermines sound environmental principles. The partnership sends the wrong message to homeowners. The National Coalition for Pesticide-Free Lawns and its allies are asking individuals, as baseball season officially starts, to call or email Tim Brosnan, MLB Executive Vice President for Business, at 212-931-7800, ext. 7501, [email protected], and tell him there is serious concern regarding the partnership, both in the way MLB fields are being managed, and more importantly, with the message MLB is sending to homeowners that they should treat their lawns with the same toxic chemical products. Make your voice heard! The nationwide MLB season begins today. Call during MLB’s opening week, April 5 — 11, 2010. Background A coalition of 28 environmental groups sent a letter to MLB chastising its new alliance with the Scotts Company. Scotts introduced newly branded products, which it will promote with the logo of Major League Baseball, alongside […]
Posted in Alternatives/Organics, Lawns/Landscapes | No Comments »
02
Apr
(Beyond Pesticides, April 2, 2010) On Monday, Tyrone Hayes PhD, researcher and professor at University of California Berkley gave a speech at Illinois State University urging the U.S. Environmental Protection Agency (EPA) to ban atrazine completely. Though atrazine has been the go to broad leaf weed killer for America’s corn growers since the 1950’s, evidence continues to build that atrazine is an unacceptable danger to humans and wildlife, and controversy continues as spring planting looms. In response to mounting scientific research, EPA announced last October it would review atrazine’s registration status, and last month announced plans to overhaul drinking water regulations regarding atrazine and numerous other chemicals known to harm human health. Dr. Hayes is one of the preeminent researchers on the effects of atrazine on amphibians. He compares the current loss of amphibians to the bird die-offs in the 1960’s due to DDT. The Journal Star who covered the event called the atrazine issue “one of the most contested environmental debates since PCBs were banned in the 1970s.” The debate has pitted concerned farmers, environmentalists, and human health advocates against conventional corn growers and atrazine manufacturer Syngenta. Syngenta, the Swiss chemical giant, is also facing litigation from several municipalities […]
Posted in Atrazine | No Comments »
01
Apr
(Beyond Pesticides, April 1, 2010) While most previous literature on melanoma has focused on host factors and sun exposure, new research shows a link between several pesticides and this deadly form of skin cancer. Epidemiologists from University of Iowa, the National Institute of Environmental Health Sciences and National Cancer Institute found that agricultural workers who apply certain pesticides to farm fields are twice as likely to contract melanoma, providing support for the hypotheses that agricultural chemicals may be another important source of skin cancer risk. The study, “Pesticide use and cutaneous melanoma in pesticide applicators in the Agricultural Heath Study” was published last month in the journal Environmental Health Perspectives. It examines cancer rates in 56,285 pesticide applicators in Iowa and North Carolina as part of the federal government’s Agricultural Health Study, a large, long-term study of pesticide applicators and their spouses. Researchers asked the pesticide applicators how often they were exposed to 50 pesticides and compared their cancer rates. Each person’s exposure was then approximated by adding up the total days that the workers had been exposed and using information from survey results on how the chemicals were applied and what protective equipment was being used. The pesticides that […]
Posted in Benomyl, Cancer, Carbaryl, Maneb | 1 Comment »
31
Mar
(Beyond Pesticides, March 31, 2010) Last week the U.S. Environmental Protection Agency (EPA) announced that it was taking action aimed at improving residential safety and reducing risks associated with bug bombs, or total release foggers (TRFs). The agency is calling for significant changes to product labeling to address the most common causes of exposure incidents associated with TRFs. However, product labels do not adequately protect the public from toxic pesticide ingredients and calls to ban foggers and promote safer alternatives, action that has been urged for years both within and outside the agency, continue to go unheeded. Prompted by concerns raised by a 2009 petition from the New York City Department of Health to reclassify TRFs as restricted use pesticides, EPA sent a letter of notification to manufacturers on March 23, 2010 stating that the agency is now requiring a number of labeling changes by September 30, 2011. In spite of New York’s recommendation, the agency concluded that reclassification is inappropriate and would unnecessarily remove these inexpensive pest control tools from the residential market. Since, according to the agency’s analysis, the largest proportion of incidents is attributable to failure to follow label instructions, the changes are targeted at minimizing those […]
Posted in Permethrin, Pesticide Regulation | No Comments »
30
Mar
(Beyond Pesticides, March 30, 2010) Searching for clues to the mysterious disappearance of bees, known as “colony collapse disorder”(CCD), Penn State University researchers have identified widespread pesticide contamination of beehives. The study, “High Levels of Miticides and Agrochemicals in North American Apiaries: Implications for Honey Bee Health,” was published March 19, 2010 in the scientific journal Public Library of Science (PLOS). The study finds 121 different types of pesticides within 887 wax, pollen, bee and hive samples from 23 states. The top 10 most frequently detected pesticides are fluvalinate, coumaphos, chlorpyrifos, chlorothalonil, amitraz, pendamethalin, endosulfan, fenpropathrin, esfenvalerate and atrazine. Miticides are the most common contaminant in the wax and bees, and fungicides are the most common contaminant of pollen. For the full results of the study, including several tables of wax, pollen and bee sample data, download the study from the PLOS website. “The pollen is not in good shape,” Chris Mullin, PhD, lead author of the study, told Discovery News. The authors state that the 98 pesticides and metabolites detected in mixtures up to 214 parts per million (ppm) in bee pollen alone represents a remarkably high level for toxicants in the brood and adult food of this primary […]
Posted in Agriculture, Atrazine, Chemicals, Chlorothalonil, Chlorpyrifos, Coumaphos, Endosulfan, esfenvalerate, fluvalinate, Pendimethalin, Pollinators | 3 Comments »
29
Mar
(Beyond Pesticides, March 29, 2010) Prenatal exposure to pesticides at levels that do not cause adverse health effects in the mother can lead to delayed brain developmental in the child, according to the new study, “Neurobehavioral Deficits and Increased Blood Pressure in School-Age Children Prenatally Exposed to Pesticides,” published last month in the early online edition of the journal Environmental Health Perspectives. Many pesticides are suspected of being capable of damaging the nervous system, in particular the development of a child’s brain during pregnancy and the early postnatal years of life. Now an international research team led by Philippe Grandjean, M.D., from the University of Southern Denmark and Harvard School of Public Health, has shown a delayed brain development up to two years in school children, whose mothers worked in a greenhouse during pregnancy. The exposed children also had increased blood pressure, while the mothers do not suffered adverse symptoms themselves. “The results support the notion that, in this cohort of children, prenatal exposures to pesticides are more harmful than current exposures, thereby confirming previous results of other environmental studies of neurodevelopmental toxicity and the theory of window of vulnerability of central nervous system during uterine life,” write the authors. […]
Posted in Children/Schools, Disease/Health Effects | 1 Comment »
26
Mar
(Beyond Pesticides, March 26, 2010) A new study by researchers at Columbia University’s Mailman School of Public Health has linked exposure to the insecticide chlorpyrifos to early childhood developmental delays. Chlorpyrifos is a broad spectrum organophosphate insecticide that was banned for household use in 2001, but is still widely used in agriculture. The study, entitled “Chlorpyrifos Exposure and Urban Residential Environment Characteristics as Determinants of Early Childhood Neurodevelopment,” was published online and will be published in print in the may issue of the American Journal of Public Health. The study examined 266 children born between 1998 and 2002 living in low income neighborhoods of the South Bronx and Northern Manhattan in New York City. Before being banned chlorpyrifos was widely used in these areas. Of the children studied, 47% were male, 59% were Dominican and 41% were African American. Researchers compared motor and mental development to levels of exposure to the pesticide at birth. They found that high concentrations of chlorpyrifos in umbilical cord blood (>6.17 pg/g) corresponds to a 6.5 point decrease in the Psychomotor Development Index, and a 3.3 point decrease in the Mental development index in 3 year olds. Previous research published in 2006 on the same […]
Posted in Children/Schools, Chlorpyrifos, Disease/Health Effects | No Comments »
25
Mar
(Beyond Pesticides, March 25, 2010) A new study finds that the absence of a maximum dose on some household pesticides labels leave consumers with the impression that “if a little is good, more is better.” According to the study that was presented at the 239th National Meeting of the American Chemical Society (ACS), label directions are written in a way that may result in consumers using excessive amounts of pesticides, subjecting their family and pets to increased exposures. The new study, which was lead by California Environmental Protection Agency researcher Linda M. Hall, Ph.D., and her colleagues, finds that while minimum and maximum doses are clearly listed on labels for agricultural pesticides, labels for some household pesticides, such as para-dichlorbenzene (pDCB) mention the minimum amount for consumers to use but do not indicate the maximum. Para-dichlorobenzene (pDCB) is the active ingredient in mothballs and other products used to protect silk, wool, and other natural fibers against moths and beetles; caged birds against lice and mites; mildew prevention; and is also used in air fresheners and bathroom deodorizers. Exposure to moth repellents, which include other toxic chemicals such as naphthalene and camphor, can cause eye and respiratory irritation, headaches, confusion and […]
Posted in Chemicals, Label Claims | No Comments »
24
Mar
(Beyond Pesticides, March 24, 2010) Due to a significant increase in adverse incidents, the U.S. Environmental Protection Agency (EPA) is taking a series of actions aimed at increasing the safety of spot-on pesticide products for flea and tick control for cats and dogs. EPA will begin reviewing labels to determine which ones will require new instructions and labeling for on-spot flea products. EPA began investigating the products after discovering a sharp rise in the number of dogs and cats reported to be sick. Incidents reported by consumers rose from 28,895 in 2007 to 44,263 in 2008, an increase of 53 percent. The products investigated, including the popular Frontline and Advantage brands, are small vials of liquid pesticides that pet owners apply monthly to the backs of dogs or cats to kill fleas and ticks. EPA began investigating the products after discovering a sharp rise in the number of pets reported to be sick after they were treated. The year long investigation, conducted by a team of veterinarians assembled by the agency, concluded that certain pets — small dogs between 10 and 20 pounds — are most susceptible to the problems, which include rashes, vomiting, diarrhea and seizures. EPA plans to […]
Posted in Permethrin, Pets | No Comments »
23
Mar
(Beyond Pesticides, March 23, 2010) On March 22, 2010 the environmental health group Grassroots Environmental Education released a report comparing the relative costs of maintaining a typical high school football field using a chemical-intensive program and a natural (organic) program over a five-year period. The report, prepared for members of the New York State legislature, concludes that the annual cost of maintaining a field using natural products and techniques can be as much as 25% lower than the cost of conventional programs using chemical fertilizers and pesticides. “It can take a few seasons to undo the damage caused by chemical management programs, revitalize the soil biology and let nature do its work,” says the report’s principal author, Charles “Chip” Osborne, a nationally-recognized natural turf expert and Beyond Pesticides board member who serves as a consultant to many New York school districts. “But once we get the soil biology working for us, we can see some dramatic and significant cost reductions fairly quickly.” The emerging science that links exposure to turf pesticides with human health problems, including potential interference with normal brain development in children, has increased the demand for non-chemical turf management solutions for schools, and has spurred lawmakers in […]
Posted in Alternatives/Organics, Lawns/Landscapes | 6 Comments »
22
Mar
(Beyond Pesticides, March 22, 2010) New York State has fined TruGreen, the world’s largest professional lawn and landscape company, half a million dollars for numerous violations for misapplying pesticides and inaccurate recordkeeping, according to the state’s Department of Environmental Conservation (DEC) consent order filed last week. In related news, the unlikely sponsorship agreement between TruGreen and Earth Day Network has finally been dropped. The potential sell-out of Earth Day to TruGreen created such a backlash in the environmental community that due to a tremendous amount of pressure, Earth Day Network has retracted its sponsorship agreement with the company. Beyond Pesticides received the following statement today from Earth Day Network: “Earth Day Network had previously announced an educational sponsorship with TruGreen in respect to organic and sustainable lawn and landscape care. Due to unanticipated events, Earth Day Network and TruGreen regrettably announce their relationship for the 40th anniversary event has been suspended. TruGreen continues to respect the commitment Earth Day Network is making to celebrate the 40th anniversary of Earth Day, and Earth Day Network recognizes TruGreen’s efforts on behalf of organic and sustainable lawn and land care.” New York State is demanding a civil penalty of $400,000 be paid by […]
Posted in New York, TruGreen | 1 Comment »
19
Mar
(Beyond Pesticides, March 19, 2010) Federal district Judge Jeffrey White of the Northern District of California denied a preliminary injunction on genetically engineered (GE) sugar beets and sugar beet seeds. However, Judge White did indicate that a permanent ban may be forthcoming saying that the parties should not “assume that the Court’s decision to deny a preliminary injunction is indicative of its views on a permanent injunction” pending an Environmental Impact Statement (EIS) from the U.S Department of Agriculture’s (USDS) Animal Plant Health Inspection Service (APHIS). In the mean time, he urged the Intervenor-Defendants to “take all efforts going forward to use conventional (non GE) seed.” Judge White will begin hearing motions on a permanent ban of GE sugar beets in May with the next court date scheduled for July. “Based on today’s ruling, we are encouraged that Judge White will order permanent injunction relief,” said Paul Achitoff, attorney for Earth Justice in a release by Center for Food Safety (CFS). “We will ask the Court to halt the use of genetically engineered sugar beets and seeds until the federal government does its job to protect consumers and farmers alike.” The Plaintiffs, CFS, Organic Seed Alliance, Sierra Club, and High […]
Posted in Genetic Engineering, Monsanto | No Comments »
18
Mar
(Beyond Pesticides, March 18, 2010) The potential sell-out of Earth Day to the world’s largest professional lawn and landscape company – TruGreen – has created such a backlash in the environmental community that Earth Day Network, organizers of national Earth Day events are being pressed to reconsider their sponsorship agreement with the company. According to a March 10th press release, TruGreen announced its partnership with Earth Day Network, claiming to be the exclusive U.S. “organic and sustainable lawn and landscape care sponsor” of the 40th anniversary of Earth Day. In response, activists created a Facebook page dedicated to stopping the sponsorship, which garnered over 250 fans in less than two days, with comments continually pouring in. The sponsorship has been taken down from Earth Day Networks website, and some internet activists have posted that Kathleen Rogers, President of Earth Day Network, has retracted the sponsorship. However, an email to Beyond Pesticides that had initially confirmed that TruGreen has no affiliation with Earth Day Network has been retracted. Communications Director Jennifer Resick said that the statement was premature and that the group at this time has no official comment regarding the sponsorship or affiliation to Earth Day Network. Important Update, March […]
Posted in TruGreen | 1 Comment »
17
Mar
(Beyond Pesticides, March 17, 2009) “Children Act Fast…So Do Poisons” is the message that the U.S. Environmental Protection Agency (EPA) is sending in conjunction with the Poison Prevention Week Council to keep poisonous substances out of the hands of children. In observance of the annual National Poison Prevention Week (March 14-20), EPA recommends locking up household cleaners, disinfectants, solvents and other materials as the best way to reduce accidental poisoning among children. However, Beyond Pesticides advises the public to throw out poisonous chemicals and utilize non-toxic methods of pest management. While it is wise to keep all potentially harmful household products out of the reach and hands of children, Beyond Pesticides recommends to the public to abandon poisonous chemicals and instead practice non-toxic methods of pest management and use least-toxic chemicals where possible. EPA continues to facilitate and apologize for the unnecessary use of highly toxic pesticides, disinfectants, solvents and other hazardous materials that it registers, and misses every year the important opportunity during National Poison Prevention Week to alert families with children about integrated pest management and organic methods that are effective, but not reliant on hazardous methods. Numerous scientific studies that show children carrying a body burden of […]
Posted in Children/Schools | 1 Comment »
16
Mar
(Beyond Pesticides, March 16, 2010) The New Hampshire House of Representatives passed a measure last week to study the passage of a bill, HB 1456, that would establish a New Hampshire General Court committee to study the use of pesticides and their alternatives in areas where children may be exposed. Yes, that’s right; they passed a bill to study a study bill. The House majority committee proposed the interim study bill as an alternative to seeking a floor vote on HB 1456 itself because of the bill opponents’ view that the safety of pesticides is unquestionable and fear that HB 1456 would lead to a moratorium on lawn pesticides, much like what has been done throughout Canada. HB 1456 is the first state bill in the country to be successfully introduced and have a hearing with intent to restrict toxic pesticide use on public and private property, showing the momentum that is building throughout the country on this issue. At the House Environment and Agriculture Committee hearing on HB 1456 in February, the issue of studying the impact of pesticides, mainly herbicides, on children where they are commonly used in residential neighborhoods, on school grounds, playgrounds, and other places where […]
Posted in Lawns/Landscapes, National Politics, New Hampshire | 1 Comment »
15
Mar
(Beyond Pesticides, March 15, 2010) A coalition of environmental groups is chastising in a letter to Major League Baseball its new alliance with Scotts Miracle-Gro because it says the chemical and seed company undermines sound environmental values by promoting turf management programs that are unnecessarily chemical-intensive. Scotts introduced newly branded products, which it will promote with the logo of Major League Baseball, alongside its chemical “weed and feed” and insecticide products. Weed and feed products contain herbicides and synthetic fertilizers that are tied to adverse health and environmental effects. In its letter to Major League Baseball, the coalition told officials that associating the organization with Scotts Miracle-Gro and allowing the company to use its name to promote a chemical-intensive philosophy to homeowners sends the wrong message —that toxic chemicals are necessary to have a beautiful green lawn. In fact, the coalition says homeowners are learning that turf can be managed effectively utilizing organic methods that are safer for children, families, and the environment. In this critical period of history when we are shifting to “green” practices around the home and in our communities, Major League Baseball can and should be an environmental leader, rather than advancing toxic products with well […]
Posted in Lawns/Landscapes | 1 Comment »
12
Mar
(Beyond Pesticides, March 12, 2010) Over 40 million Americans watched Sandra Bullock and Jeff Bridges win the best actress and actor Oscars at the 82nd Academy Awards last Sunday. On Wednesday March 3rd, Californians for a Healthy and Green Economy (CHANGE) recognized the year’s bad actors, bad chemical actors that is, at the first ever “Toxies.” CHANGE is a coalition of environmental, policy, labor, interfaith and other organizations working to regulate toxic chemicals in the state of California. Held at the Egyptian Theater in Hollywood, the Red Carpet Event featured actors in character as various harmful chemicals. Toxies were awarded to the pesticides Triclosan and Methyl Iodide. The tongue-in-cheek award show was intended to bring awareness to the harmful effect that these chemicals have on human health and the environment. The timing coincides not only with the awards show season, but with the anticipated release of the final draft of regulations for California’s Green Chemistry Programs. The awards ceremony and accompanying report awarded Toxies to 16 bad chemical actors. The “winners” all affect human health and all have safer alternatives. The 2010 Toxie winners are: Worst Breakthrough Performance: Bisphenol A (BPA) Found in plastics BPA has been linked to breast […]
Posted in methyl iodide, sulfuryl fluoride, Triclosan | 2 Comments »
11
Mar
(Beyond Pesticides, March 11, 2010) The New York State Department of Environmental Conservation (DEC) determined that a pair of bald eagles were killed and a host of other wildlife were injured after an Allegany County farmer applied a highly toxic pesticide that has been canceled for use by the U.S. Environmental Protection Agency (EPA). Following an investigation, the state DEC determined that the two bald eagles were poisoned after ingesting the improperly applied pesticide Furadan, or carbofuran, on his farm. The farmer and landowner, Richard Sekoll, was charged with and pleaded guilty to violating state pesticide laws and fish and wildlife laws and paid $3,000 in fines. After receiving a call that two dead bald eagles were found near the Genesee River last fall, DEC began an investigation and sent the eagles to the department’s Wildlife Pathology Unit. Lab results showed that the birds died of poisoning from consumption of carbofuran, which occurred after the eagles consumed prey that had ingested the pesticide. State officials with the DEC’s Division of Pesticides and the Division of Wildlife, as well as the U.S. Fish and Wildlife Service assisted in the investigation, which found that a farm within 500 yards of where the […]
Posted in Carbofuran, New York, Wildlife/Endangered Sp. | No Comments »
10
Mar
(Beyond Pesticides, March 10, 2010) A study investigating the sublethal effects of pyrethroids, bifenthrin and deltamethrin on honeybees finds that the chemicals significantly impair the pollinators’ reproduction. The researchers also point out that the concentration of each pesticide that produced adverse effects in the experiments was at or below those that bees could encounter while pollinating treated crop fields. “Effects of sublethal concentrations of bifenthrin and deltamethrin on fecundity, growth, and development of the honeybee Apis mellifera ligustica” published in the March issue of Environmental Toxicology & Chemistry, investigated the effects of the two pesticides at sublethal concentrations on fecundity, growth, and development of honeybees were examined with the feeding method for a three-year period (2006-2008). It was shown that both bifenthrin and deltamethrin significantly reduced bee fecundity, decreased the rate at which bees develop to adulthood, and increased their immature periods. Queens in the control group in 2006 laid a little more than 1,200 eggs each day, compared to not quite 900 a day in the bifenthrin group and roughly 600 per day in the deltamethrin group. In general, the hatch rate of pyrethroid-exposed eggs was also significantly depressed. The success rate of hatchlings, that is the share that […]
Posted in Bifenthrin, Deltamethrin, Pollinators | No Comments »