(Beyond Pesticides, December 4, 2007) On November 29, 2007, the California Department of Pesticide Regulation (DPR) reported 2006 pesticide use statistics that showed continued progress toward less pesticide use statewide. However, strawberry growers increased their reliance the highly toxic, ozone depleting fumigant methyl bromide. Overall statewide pesticide use declined by nearly six million pounds from 2005 to 2006 (from 195.3 million to 189.6 million). While use increased in landscape maintenance, public health and other categories, production agriculture saw a 10 million pound drop. Use of many high-toxicity chemicals, including carcinogens, neurotoxic pesticides and chemicals linked to reproductive effects dropped for the third consecutive year. “DPR works hard to promote least-toxic pest management, and our efforts are paying off,” said DPR director Mary-Ann Warmerdam. “At the same time, we will continue to strive for long-term success in pest management, and we have more work to do.” On the other hand, the Los Angeles Times reports that state strawberry growers, primarily around Oxnard and in the Salinas and Watsonville areas, applied fumigants to 5,000 more acres, using 132 more tons of the chemicals than in the previous year. That is a 9% increase in acreage treated and a 3% increase in tonnage. […]

(Beyond Pesticides, November 28, 2007) Researchers at the Centers for Disease Control (CDC) have determined that previous studies that assessed population-based exposure to atrazine were significantly and systematically underestimated. The CDC relies on the detection and analysis of only one of the twelve identified metabolites of atrazine measured in human urine samples to estimate exposure. However, after looking at multiple metabolites, researchers found that previous assessments missed most of the exposure. Atrazine mercapturate (AM), a metabolite of atrazine, was used as definitive evidence of direct atrazine exposure. General population data indicated that less than 5% of the population was exposed to atrazine-related chemicals. However, researchers at the CDC found that this research, which relied on AM detection, gives a low and misleading estimate of exposure to atrazine and atrazine- related metabolites. Published in Environmental Health and Perspectives and entitled “Assessing Exposure to Atrazine and Its Metabolites Using Biomonitoring”, the small-scale study involving 24 individuals measured nine atrazine-related metabolites in urine. The sample was organized with respect to how likely the individuals were to be exposed to atrazine: (1) high exposure (turf pesticide applicators), (2) low exposure (non-occupationally exposed people in whom atrazine mercapturate was found during a prior study) and […]

(Beyond Pesticides, November 27, 2007) While there is a trend towards less pesticide use in Christmas tree production, most trees are still treated with one pesticide or another — many of which are prohibited for residential use. In it’s 2007 survey results, North Carolina State University’s Mountain Horticultural Research and Extension Center, reports that glyphosate was the pesticide applied most commonly. The Center found that almost 90 percent of the state’s tree growers had applied glyphosate last season. The following tables summarize the state’s results, listing the pesticides that are used on at least 5% of the Christmas tree acreage. Nearly 40 different active ingredients are registered for tree production nationwide. Oregon, North Carolina, Michigan, Pennsylvania, Wisconsin, Washington, New York, and Virginia are the nation’s top Christmas tree producing states. Pennsylvania’s Department of Agriculture, which published a list of insecticides for Christmas tree production in February 2007, recommends carbaryl, carbofuran, chlorpyrifos, diazinon, endosulfan, imidacloprid, malathion, permethrin and many more. Many of these pesticides have been “banned” or have always been prohibited in residential settings, however EPA’s registration process and phase-out deals with manufacturers allows continued use on Christmas trees and other agricultural products. For information on the toxicity of these […]

(Beyond Pesticides, November 26, 2007) Minnesota’s Department of Health (MDH) plans to measure arsenic levels in 100 children who live near a former pesticide production site in south Minneapolis. Pesticides containing arsenic, a known human carcinogen, were made and stored at the CMC Heartland site between 1938 and 1963. The pilot project follows the passage of health tracking and biomonitoring legislation and would help to determine whether children in south Minneapolis have elevated levels of arsenic in their bodies. Children who are found to have elevated levels would be advised to seek medical attention. Also, health officials would give families information to help them determine how they might be exposed to arsenic (including the soil, green-treated lumber, foods, dietary supplements and cigarette smoke) and to take steps to reduce the exposure in the future. Health Department staff members aim to begin the project in the summer of 2008 and will present preliminary plans and accept feedback on the proposal at a public meeting at December 6 at 7 p.m. at the Midtown YWCA, 2121 E. Lake St. Health officials have said that the risk from the contaminated soil is low, particularly since much of the contaminated soil is under grass […]

(Beyond Pesticides, November 8, 2007) In a landmark decision, a California jury on November 5, 2007 awarded $3.3 million to Nicaraguan farmworkers sterilized by pesticides made by Dow Chemical and used at Dole’s banana plantations. The lawsuit accused Dole and Standard Fruit Co., now a part of Dole, of negligence and fraudulent concealment while using the pesticide 1,2-Dibromo-3-Chloropropane (DBCP) to kill rootworms on banana plants. Until 1977, DBCP was used in the United States as a soil fumigant and nematocide on over 40 different crops. From 1977 to 1979, EPA suspended registration for all DBCP-containing products except for use on pineapples in Hawaii. In 1985, EPA issued an intent to cancel all registrations for DBCP, including use on pineapples. Subsequently, the use of existing stocks of DBCP was prohibited. In Nicaragua, DBCP was legal from 1973 until 1993.EPA’s website states the following: Acute (short-term) exposure to DBCP in humans results in moderate depression of the central nervous system (CNS) and pulmonary congestion from inhalation, and gastrointestinal distress and pulmonary edema from oral exposure. Chronic (long-term) exposure to DBCP in humans causes male reproductive effects, such as decreased sperm counts. Testicular effects and decreased sperm counts were observed in animals chronically […]

(Beyond Pesticides, November 6, 2007) Reclaiming Our Healthy Future: Political change to protect the next generation, the 26th National Pesticide Forum, will be held March 14-16, 2008 at the University of California, Berkeley. The conference is convened by Beyond Pesticides, Californians for Pesticide Reform (CPR) and Pesticide Action Network North America (PANNA). Session topics include: Children’s health, Farmworker justice, Fair and healthy food, the DDT resurgence, and much more. Check the website for the weekly updates. In addition, veteran stage actress Kaiulani Lee will perform A Sense of Wonder, her one-woman play based on the life and works of Rachel Carson. The play, which is made up of mostly Carson’s own words from letters, journal entries, speeches, not only focuses on Silent Spring, but on aspects of her private life not often examined. Ms. Lee explains, “She [Carson] was very poor…She had nothing. And she changed the course of history.” Registration is $65 for members, $75 for non-members, $175 for business registrants, and $35 for students. Forum registration includes receptions, breakfast and lunch on Saturday and breakfast on Sunday, plus all plenaries, keynotes, workshops and the stage performance of A Sense of Wonder. All food will be organic. Online registration, […]

(Beyond Pesticides, October 18, 2007) Antibacterial soaps show no health benefits over plain soaps and, in fact, may render some common antibiotics less effective, says University of Michigan public health professor Allison Aiello, Ph.D. The study, “Consumer Antibacterial Soaps: Effective or Just Risky?” appears in the August edition of Clinical Infectious Diseases. In the first known comprehensive analysis of whether antibacterial soaps containing triclosan work better than plain soaps, Dr. Aiello of the University of Michigan School of Public Health and her team found that washing hands with an antibacterial soap was no more effective in preventing infectious illness than plain soap. Moreover, antibacterial soaps at formulations sold to the public do not remove any more bacteria from the hands during washing than plain soaps. Because of the way triclosan, the main active ingredient in many antibacterial soaps, reacts in the cells, it may cause some bacteria to become resistant to commonly used drugs such as amoxicillin, the researchers say. These changes have not been detected at the population level, but e-coli bacteria bugs adapted in lab experiments showed resistance when exposed to as much as 0.1 percent weight/volume triclosan soap. “What we are saying is that these e-coli could […]

(Beyond Pesticides, October 18, 2007) In a scholarly review written by Theo Colborn, Ph.D. and Lynn Carroll, Ph.D., the authors point to the multigenerational effects of some pesticides that they say demand improved regulation to protect human and environmental health. The review, “Pesticides, Sexual Development, Reproduction, and Fertility: Current Perspective and Future Direction,” appears in the international journal Human and Ecological Risk Assessment (13:5, 1078 — 1110), September, 2007. The study points out a major deficiency in the U.S. Environmental Protection Agency’s regulation of pesticides under current health reviews and risk assessments. The authors call EPA’s pesticide registration system “outmoded” and one that has “almost completely missed the low-dose and endocrine system-mediated effects of pesticides.” The study reviews both epidemiological and laboratory data. In the abstract, the authors state the following: Improvements in chemical analytical technology and non-invasive sampling protocols have made it easier to detect pesticides and their metabolites at very low concentrations in human tissues. Monitoring has revealed that pesticides penetrate both maternal and paternal reproductive tissues and organs, thus providing a pathway for initiating harm to their offspring starting before fertilization throughout gestation and lactation. This article explores the literature that addresses the parental pathway of exposure […]

(Beyond Pesticides, October 16, 2007) Corn, genetically engineered (GE) to tolerate the pesticide Bacillus thuringiensis (Bt), has been found to harm non-target aquatic insects and disrupt the connected food web. A new study by researchers at Indiana University, funded by the National Science Foundation and published in Proceedings of the National Academies of Sciences, suggests that the crop, which has been licensed for use since 1996, poses an unforseen risk to aquatic ecosystems. According to the study, roughly 35 percent of American corn acreage is Bt corn. Pollen and other parts of the plants are travelling much farther than the fields in which they are planted, carrying Bt toxins through watersheds and being consumed by close relatives of the corn’s targeted pests. Caddisflies experience high mortality and stunted growth as a result of exposure. As researcher Todd V. Royer observed, they “are a food resource for higher organisms like amphibians and fish. And, if our goal is to have healthy, functioning ecosystems, we need to protect all the parts. Water resources are something we depend on greatly.” This effect went unnoticed for ten years because the Environmental Protection Agency (EPA), in its registration trials, tested Bt on a crustacean, rather […]

(Beyond Pesticides, October, 10 2007) One of the largest chemical companies in the world, BASF Corporation, announced in a press release October 9, 2007 that it will get serious in its campaign against the use of illegal pesticides. The sale and distribution of unregistered or counterfeit pesticidal products is clearly prohibited under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA), resulting in harm to public health and the environment. Several companies have recently been fined by the EPA for selling and distributing unregistered or mislabeled pesticide products (See Daily News Blogs: “EPA Fines Clorox Over Export Labels” and “Target Settles with EPA on Labeling Violations”). BASF sees the problem as adversely affecting its bottom line. BASF Agricultural Products spends over 300 million euros in research and development, especially in the field of crop protection, to develop and launch new products. As a result, the company is on a state of alert to prevent activities which deliberately infringe its existing patents or which are illegal, including product counterfeiting and the sale and distribution of unregistered pesticides. The agricultural products division of BASF said that its worldwide fight against illegal pesticides would involve taking legal action for patent infringement, illegal imports of […]

(Beyond Pesticides, October 9, 2007) Two state agencies and the U.S. EPA are close to completing an investigation of the poisoning of over 100 farmworkers in Nevada two weeks ago. Chloropicrin, an agricultural fumigant, drifted to a worker-occupied field, sending 121 laborers to Saint Lyon Medical Center (SLMC) for treatment on the morning of September 26. Upon arrival, the workers were showing symptoms including difficulty breathing, nausea, watery eyes and sore throat. SLMC Administrator Joan Hall said that only 12 of the 121 people required emergency room care, and most returned to work the same afternoon. Normally, chloropicrin’s off-gas dissipates, but because of a weather inversion the fumigant stayed lower to the ground and drifted more than a half-mile away from its application area to the worker-occupied field. Speaking on behalf of local farming operation Peri & Sons Farms, media contact Tim Cummings said both the Nevada Department of Agriculture and Occupational Safety and Health Administration have concluded their portion of the report, with the remaining piece due from the EPA. Peri & Sons owns both fields, which are located just over a half-mile apart, far enough apart from each other for such applications, according to state regulations and the […]

(Beyond Pesticides, October 4, 2007) On September 28, 2007, the Environmental Protection Agency (EPA) delayed approval of the pesticide methyl iodide, a highly toxic replacement chemical for the ozone-depleting methyl bromide (also called iodomethane), after more than 50 prominent scientists objected that the chemical was too dangerous. The decision surprised environmentalists who assumed the pesticide would most likely be registered despite opposition. According to EPA, it now “will address recent questions prompted by the pending registration of iodomethane.” On September 24, 2007, scientists across the country — including six Nobel prize winners, alarmed by the prospect of registering methyl iodide as a pesticide, issued a letter to EPA Administrator Stephen Johnson urging the Agency not to sanction the broad use of methyl iodide now or at any time. “The gratifying thing is that EPA has been responsive to people who are really concerned about this,” Robert Bergman, a University of California at Berkeley professor who organized the scientists’ letter, told the Associated Press. The letter criticized EPA’s scientific analysis, calling for an independent scientific review of the agency’s assessment. Methyl iodide and methyl bromide are injected into the soil at rates of 100-400 pounds per acre to kill soil-borne pests. […]

(Beyond Pesticides, October 1, 2007) For the second time in ten years, state officials have poured aquatic insecticide and piscicide rotenone into California’s Lake Davis in an effort to control an invasive species of fish, northern pike. Despite the first failure of rotenone to eradicate the pike in 1997, Fish and Game officials felt they had no alternative but to resort to the toxic chemical once more. The invasive pike were first introduced, illegally, into Lake Davis in 1994. Since then, the population has reached uncontrollable proportions, out-competing local trout. The small town of Portola, which uses Lake Davis as its drinking water supply, is largely supported by fishing and tourism, which are boosted by its reputation for producing extremely large trout. Local businesses fear the consequences of the pikes’ destruction of the attraction. Despite its economic concerns, the town did not universally support the first application of rotenone in 1997. Four residents, including the mayor pro tem, were arrested in a mass protest of the application as Fish and Game put thousands of gallons of the chemical in the lake. Within a year, pike reappeared. Ten years and many failed attempted alternatives later, the pike population thrives. Fish and […]

(Beyond Pesticides, September 28, 2007) EPA is due to make a decision on methyl iodide, a highly reactive and carcinogenic chemical, for use in crop production as a soil fumigant. Scientists across the country are alarmed by the prospect of registering methyl iodide as a pesticide, and fifty-four chemists and physicians from across the country issued a letter to EPA Administrator Stephen Johnson Monday urging the Agency not to sanction the broad use of methyl iodide now or at any time.“[W]e are concerned that pregnant women and the fetus, children, the elderly, farm workers, and other people living near application sites would be at serious risk if methyl iodide is permitted for use in agriculture,” said the group in the letter. In the chemical community methyl iodide is a well-known cancer hazard due to its ability to mutate DNA, and the scientists are fearful that methyl iodide’s high volatility and water solubility will expose many people to harm if the chemical is used in agriculture. Methyl iodide and methyl bromide are injected into the soil at rates of 100-400 pounds per acre to kill soil-borne pests. Because of the high application rates and gaseous nature of these chemicals, they drift […]

(Beyond Pesticides, September 20, 20087) A citizens group sued the county and the state of California September 14, 2007 for not allowing adequate public input before using toxic sprays on the Eel River to eradicate invasive weeds. Eureka-based Californians for Alternatives to Toxics (CATs) sued the Humboldt County Agricultural Commissioner (County) and the California Department of Parks and Recreation (DPR) for their decision to use herbicides to kill purple loosestrife plants for as many as 10 years without first consulting with the public. The suit, filed in Humboldt County Superior Court, also faults the agencies for failing to consider safer and more effective methods such as biological weed control programs, already used successfully throughout the country.“The decision to spray was made behind closed doors with the many people who care deeply about the Eel River locked out,” said Patty Clary, speaking for CATs. “State law requires that the public be involved in important environmental decisions and that alternatives be seriously considered – these requirements were not met.” The agencies’ decision to spray the herbicide imazapyr from boats on 200 riverbank sites along 25 miles of the Eel was first sprung on the public on July 10 at an invitation-only meeting […]

(Beyond Pesticides, September 19, 2007) In Vietnam, attempts continue to be made to protect villages from the ongoing threat of Agent Orange, used by American forces to deforest the jungle canopy in the Vietnam War over 30 years ago, according to the New York Times. Reforestation and fencing are being carried out to prevent local animals and residents from being exposed to soil contaminated with 2,3,7,8-Tetrachlorodibenzo-p-Dioxin (TCDD), a potent dioxin contaminant of Agent Orange. Phung Tuu Boi, forester and director of the Center for Assistance in Nature Conservation and Community Development in Hanoi, is attempting to reforest thousands of hectares in central Vietnam. However, his main concern is the dioxin that taints the soil and the local residents most at risk since they live off the land. “The local people are poor and uneducated, and they don’t understand. Children come here to play and they collect insects and other things to eat,” said Mr. Boi. TCDD is the most dangerous form of dioxin and the levels found in soil samples from Central Vietnam are more than 200 times the “acceptable” level set by the US EPA. Efforts to educate the residents about the dangers of dioxin are difficult since most […]

(Beyond Pesticides, September 18, 2007) On September 16, 2007, researchers from the National Institute of Environmental Health Sciences presented findings to the European Respiratory Society Annual Congress in Stockholm showing that exposure to several commonly used pesticides increases the risk of asthma in farmers. Pesticide exposure is a “potential risk factor for asthma and respiratory symptoms among farmers,” lead author Dr. Jane A. Hoppin told Reuters Health. “Because grains and animals are more common exposures in agricultural settings, pesticides may be overlooked. Better education and training of farmers and pesticide handlers may help to reduce asthma risk.”The study consisted of 19,704 farmers, 441 of which had asthma. Farmers who have experienced high pesticide exposure were twice as likely to have asthma. Sixteen of the pesticides studied were associated with asthma. Coumaphos, EPTC, lindane, parathion, heptachlor, 2,4,5-TP, DDT, malathion, and phorate had the strongest effect. “This is the first study with sufficient power to evaluate individual pesticides and adult asthma among individuals who routinely apply pesticides,” Dr. Hoppin said. Asthma is a serious chronic disorder of the lungs characterized by recurrent attacks of bronchial constriction, which cause breathlessness, wheezing, and coughing. Asthma is a dangerous, and in some cases life-threatening disease. […]

(Beyond Pesticides, September 17, 2007) Mediterranean fruit flies were discovered last week in Dixon, California, and federal, state, and county agencies rushed to respond with traps, biopesticide treatment, and sterile mates to prevent the insect from infesting local agriculture. A total of eight Medflies have been found so far, and the three-pronged attack started with an effort to monitor the presence of the Medfly. California Department of Food and Agriculture (CDFA) employees have placed 1,700 fruit fly-targeted detection traps in an 81-square-mile grid. Next, residents within 200 meters of the original finding had their yards treated with the organic compound Naturalyte, the active ingredient of which is spinosad, a naturally occurring extract from bacteria. The pesticide, made by Dow, is approved for use on organic crops, yet the vast majority of its ingredients (so-called “inerts”) are not disclosed. As another biological control, more than 3 million sterile male flies were released last Friday in a 12-square-mile area around Dixon. The sterile males will be deployed on a weekly basis to mate with wild females, helping to eradicate the Medfly population. This is the first Medfly case in Solano County, according to county agriculture officials. Agriculture Commissioner Jerry Howard said that […]

(Beyond Pesticides, September 14, 2007) Data collected by the Environmental Protection Agency (EPA) between 2003 and 2006 has found atrazine to exist in Midwest drinking water supplies at high levels. The federal monitoring data, obtained by the National Resources Defense Council (NRDC), shows increased atrazine levels in 94 of 136 water systems tested in Indiana, Ohio, Iowa, Kentucky, Minnesota, and Nebraska. Atrazine, which has been linked to cancer in numerous studies, is a common agricultural herbicide that could see increased use as demand for corn rises due to ethanol production. In 2003, EPA called it “the most heavily used herbicide in the United States.” According to NRDC’s report, EPA’s study found that nearly all 40 monitored watersheds showed levels of atrazine at levels that harm aquatic animals and habitat. Atrazine’s effect on amphibians has been well documented, and similarly serious health effects have been found in larger mammals. Chronically contaminated drinking water puts humans at the risk of exposure to similar long-term health effects. In agricultural areas of the midwest, the risk is especially high. “Kentucky’s waterways are particularly vulnerable to contamination,” said a Western Kentucky University report. “Networks of sinkholes and underground streams allow water and contaminants to flow […]

(Beyond Pesticides, September 12, 2007) Tributyltin (TBT), a cheap, but highly toxic barnacle and algae killer once used on nearly all of the world’s 30,000 commercial ships, will soon be banned once a treaty prohibiting its use is signed by the U.S. The ban on TBT, deemed by the U.S. Environmental Protection Agency (EPA) as the most toxic chemical ever deliberately released into the world’s waters, is endorsed by U.S. and European cruise lines, freighter and container fleets, as well as shipyard and marina operators. The U.S. is expected to sign the treaty in the coming months. The treaty is overseen by the U.N. International Maritime Organization and was completed in October 2001. However, Washington has yet to endorse the treaty. By 2008, neither the ships of ratifying countries nor foreign vessels that enter their waters will be allowed to have TBT on their hulls without a sealant. Ships found in violation will be put on an international blacklist and barred by other ratifying countries. Along with forbidding the use of TBT on the hulls of marine vessels, the treaty also sets up a system for future testing and curbs on other hull biocides worldwide. Researchers have linked TBT to […]

(Beyond Pesticides, September 4, 2007) Scientists identified an important biochemical piece in the passage of malaria from mosquitoes to humans. If this link in the chain can be broken at its source””the mosquito””then the spread of malaria could be stopped without the use of harmful pesticides or costly drugs. “Mosquito Heparan Sulfate and Its Potential Role in Malaria Infection and Transmission,” published in the August 31 issue of the Journal of Biological Chemistry, contains the findings of the interdisciplinary team led by researchers from Rensselaer Polytechnic Institute. The research group found that humans and the mosquitoes that carry the malaria parasite Plasmodium share the same complex carbohydrate, heparan sulfate. In both humans and mosquitoes, heparan sulfate is a receptor for the Plasmodium, binding to the parasite and giving it quick and easy transport through the body. Robert J. Linhardt, Ph.D., professor of Biocatalysis and Metabolic Engineering at Rensselaer, led the team. “The discovery allows us to think differently about preventing the disease. If we can stop heparan sulfate from binding to the parasite in mosquitoes, we will not just be treating the disease, we will be stopping its spread completely,” Dr. Linhardt said. Malaria parasites are specific to their host, […]

(Beyond Pesticides, August 24, 2007) The Wisconsin Natural Resources Defense Board recently passed stricter limits on allowable groundwater levels of alachlor-ESA, the breakdown product of the herbicide alachlor, cutting in half the standard to 20 parts per billion (ppb). The reduction from the previous standard of 40 ppb was prompted by the state Department of Natural Resources (DNR), which has tried to pass a similar measure in recent years, only to be blocked by the Republican-controlled Senate. Officials hope that a Democratic majority will ensure adoption of the new standard. The board voted 7-0 in favor of lowering the allowable groundwater level of alachlor-ESA, after DNR cited studies showing the chemical causes blood problems in rats. Department of Agriculture, Trade & Consumer Protection (DATCP) tests in 2001 showed alachlor-ESA in 28 percent of private wells tested, in spite of its declining use (on less than a quarter of the state’s 100,000 acres of corn). A similar proposal was rejected by the board in 2005, when DNR refused to agree to the Joint Committee for Review of Administrative Rules’ request to allow Monsanto, manufacturer of alachlor, to fund a separate study in addition to the state’s data. Monsanto, as expected, issued […]

(Beyond Pesticides, August 20, 2007) Environmental groups launched a public campaign last Wednesday to urge state officials to stop applying toxic herbicides for vegetation control along state roadways. Members of the Massachusetts Coalition for Pesticide Reduction maintain that herbicides, which the state resumed using in 2003, are harmful to people and the environment. Sylvia Broude, community organizer for Toxics Action Center, said toxic chemicals such as the ones the Highway Department uses can harm more than just the intended target. The chemicals can run off highways, pollute drinking water and eventually lead to health problems in humans, ranging from eye problems and learning disabilities to some forms of cancer, she said. The group is asking the state to use organic herbicides or manual means, such as weed whackers or lawnmowers, which the state used exclusively in the early 2000s. But state officials say affected areas are in small, controlled environments. The Highway Department says that it removes unwanted bushes and weeds manually or mechanically on the vast majority of the 48,200 acres it maintains but needs the herbicides for about 188 acres, less than half of 1 percent of the total. Spokesman John Lamontagne said removing weeds mechanically in some […]