Archive for the 'Alternatives/Organics' Category
07
Feb
(Beyond Pesticides, February 7, 2012) The U.S. Department of Agricultureâs (USDA) National Organic Program (NOP) is accepting public comments until April 6, 2012 on a National Organic Standards Board (NOSB) proposal to begin phasing out the use of the synthetic methionine, with a reduction in the current allowable level. Methionine is required for proper cell development and feathering in poultry and has been added in synthetic form to organic poultry feed since the inception of the National Organic Standards under the Organic Foods Production Act (OFPA). Synthetic methionine was officially added to the National List of Allowable Synthetic substances in 2003. Beyond Pesticides and others believe that synthetic methionine should not be used in organic poultry operations and support the NOSB use reduction and phase-out. Naturally-occurring methionine is found in plants and insects that poultry once consumed on the farm (and still do in some operations). Conventional and medium to large scale organic agricultural practices, which raise poultry primarily indoors, have limited the amount of natural methionine available in the birdsâ diets. However, the new organic livestock standards adopted at the Fall 2011 NOSB meeting will improve outdoor access for poultry and other livestock, at least partially addressing this issue. […]
Posted in Alternatives/Organics, National Organic Standards Board/National Organic Program | 1 Comment »
06
Feb
(Beyond Pesticides, February 6, 2012) The Clif Bar Family Foundation announced that it has awarded the first fellowships in organic plant breeding ever granted in the United States. Funded through its organic seed initiative, known as Seed Matters, the foundation provided $375,000 to fund three Ph.D. fellowship students for five years in organic plant breeding. The first fellowship recipient has begun working at the Washington State University Mount Vernon Campus and the two other recipients will begin in fall 2012 at the University of Wisconsin-Madison and Washington State University Pullman. As with every agricultural production system, seed is of fundamental importance to organic farmers. However, seed issues in organic agriculture remain especially challenging because of the extremely limited resources that have been dedicated to research and commercial distribution of seeds appropriate for certified operations. For example, the United States Department of Agriculture (USDA) organic certification standard s require that farmers select seed varieties adapted to site-specific conditions including resistance to prevalent pests, weeds, and diseases. However, publicly funded plant breeding programs to develop such locally adapted varieties has decreased dramatically over the past several decades and until very recently none of the funding was dedicated to organic systems. Additionally, the […]
Posted in Alternatives/Organics | No Comments »
03
Feb
(Beyond Pesticides, February 3, 2012) A new study recently published in the Journal of Integrated Pest Management (JIPM) shows that from 2003 to 2008 the use of insecticide active ingredients was reduced by about 90% in University of Florida (UF) housing buildings after an Integrated Pest Management (IPM) program was implemented. The results of the study show that pest pressure was effectively managed throughout this period as well. These findings demonstrate that IPM can be an effective management tool for institutional pest problems, confronting pests while reducing human exposure to dangerous chemicals. IPM is a systematic approach to managing pests based on long-term prevention or suppression by a variety of methods that are cost effective and minimize risks to human health and the environment. The goal of urban IPM is to manage pests primarily by prevention and elimination of their access to food, water and harborages, exclusion techniques that seal entryways, as well as changes in human behavior. Low-toxicity insecticides were used only when necessary. In their article “Advancement of Integrated Pest Management in University Housing,” the JIPM authors find that the IPM program helps to virtually eliminate the use of hydramethylnon, borate, desiccants, organophosphates, fipronil, and pyrethroids, and they […]
Posted in Alternatives/Organics, Florida | No Comments »
30
Jan
(Beyond Pesticides, January 30, 2012) The Rodale Institute has published a new technical bulletin containing information and resources to assist farmers in transitioning to diversified organic no-till cropping systems. No-till practices are highly effective for preventing soil erosion and can also decrease labor requirements and fuel use, but they typically depend on heavy pesticide applications to manage weeds in lieu of physical cultivation. This increased dependence on herbicides is unsustainable, contributing to herbicide resistance in certain weeds and increased leaching of pesticides into groundwater due to higher infiltration rates. The technical bulletin outlines the practices that organic farmers can use to capture the benefits of no-till and for conventional farmers to decrease or eliminate the need for herbicides. The technical bulletin contains guidance on using the specialized equipment that enables farmers to move beyond either routine tillage or pesticide applications. The key piece of equipment is a roller-crimper that knocks down the residues from annual crops and crimps them at a standard interval to create a thick vegetative mat into which the next crop is directly planted. The roller-crimper can knock down residues from a cereal crop, such as wheat and oats, or leguminous cover crops including red clover and […]
Posted in Alternatives/Organics | No Comments »
19
Jan
(Beyond Pesticides, January 19, 2012) Although organic farming and land management continue to grow, policies to protect people from pesticides are threatened in the Northeast and around the country. At the same time, cutting-edge science links pesticide exposure to health problems, honey bee colony collapse, and other environmental issues. Join researchers, authors, beekeepers, organic business leaders, elected officials, activists, and others at Beyond Pesticides’ 30th National Pesticide Forum to discuss the latest science, policy solutions, and grassroots action. This national conference, Healthy Communities: Green solutions for safe environments, will be held March 30-31 at Yale University in New Haven, CT. Registration Register online. Fees start at $35 ($15 for students) and include all sessions, conference materials, and organic food and drink. Speakers Confirmed speaker highlights include: Gary Hirshberg is chairman and co-founder of Stonyfield Farm, the worldâs leading organic yogurt producer, and the author of Stirring It Up: How to Make Money and Save the World. Previously, he directed the Rural Education Center, the small organic farming school from which Stonyfield was spawned. Before that, Gary had served as executive director of The New Alchemy Institute, a research and education center dedicated to organic farming, aquaculture and renewable energy. He […]
Posted in Alternatives/Organics, Children/Schools, Connecticut, Disease/Health Effects, Events, Lawns/Landscapes, Pollinators, Water | 3 Comments »
17
Jan
(Beyond Pesticides, January 17, 2011) The Organic Farming Research Foundation (OFRF) Board of Directors announced last week that it will invest $50,640 in four new grants to improve the success of organic farmers. The projects include helping organic growers to increase yields while decreasing nitrogen and impacts on surrounding waterways, preventing organic seed-producing crops from being contaminated with genetically modified organisms (GMOs), producing sweeter corn in Oregon, and testing new varieties of broccoli best suited for farmers in North Carolina. âThe benefits to OFRF grant awards are far reaching,â states OFRF Board President Deirdre Birmingham. âAfter more than 20 years and $3 million investment in organic research, we continue to experience sustainability benefits for both organic and non-organic farming.â Organic food sales have grown significantly each year since 1997 as more and more consumers make healthier food choices and turn away from the use of chemicals and synthetic fertilizers. It is the fastest growing sector of U.S. agriculture despite its premium prices. Today OFRF estimates that there are nearly 14,500 certified organic farmers who raise fruits, vegetables, grains and textile crops that improve the soil and the health of consumers and the planet while supplying a $29 billion industry. Thatâs […]
Posted in Agriculture, Alternatives/Organics | No Comments »
09
Jan
(Beyond Pesticides, January 9, 2012) The U.S. Food and Drug Administration (FDA) announced on December 22, 2011 that it was terminating a rulemaking process begun in 1977 to reduce or potentially eliminate feeding low doses of certain antibiotics to healthy farm animals in conventional livestock operations. FDA had initiated the rulemaking and taken intermediate actions for more than thirty years in response to concerns that feeding livestock sub-therapeutic levels of antibiotics would spawn resistant microorganisms that could subsequently infect people. These concerns have been consistently validated by a substantial body of scientific evidence, including the emergence of bacterial strains resistant to many and sometimes all available antibiotic treatments. In announcing its decision to forgo binding regulatory action, FDA cited the potential for voluntary reforms imposed at the discretion of livestock producers and pharmaceutical makers to achieve an acceptable standard of public health protection. Dating to the 1940s, feeding sub-therapeutic doses of antibiotics such as penicillin and tetracycline to livestock has become so common that it accounts for upwards of 80% of those materialsâ annual usage in the United States. The practice is chronic in the industrial-style production systems referred to as confined animal feeding operations, or CAFOs, in which the […]
Posted in Alternatives/Organics | No Comments »
20
Dec
(Beyond Pesticides, December 19, 2011) The National Organic Program (NOP) of the United States Department of Agriculture (USDA) has released a comprehensive list of the expiration dates for all materials currently allowed for use in organic production and handling. These materials, which are collectively referred to as the National List of Allowed and Prohibited Substances (National List), must be reviewed by the National Organic Standards Board (NOSB) every five years. Since materials have been added to the National List on an irregular schedule, a unique subset of them comes up for reconsideration each year in a process commonly referred to as “sunset review.” The NOSB is then responsible for recommending whether to renew, remove, or restrict the use conditions for each material after which the public is invited to express its opinion through public comment proceedings. The sunset review process is separate from the NOSBâs additional responsibility to review petitions for new materials under consideration for addition to the National List. While the Secretary of Agriculture has final authority for adding materials to the National List, only those materials positively recommended by the NOSB â whether through the sunset process or new petition review – may be added. The National […]
Posted in Alternatives/Organics, National Organic Standards Board/National Organic Program | 1 Comment »
13
Dec
(Beyond Pesticides, December 13, 2011) Despite opposition from Lake Tahoe water providers and environmental groups, the Lahontan Regional Water Quality Control Board (LRWQCB) voted last week to allow the use of pesticides to control invasive species like Asian clams and the underwater plants Eurasian watermilfoil and curly leaf pondweed. For years, the rules regulating pesticide use in Lake Tahoe limited their use to below detectable levels, creating a âde facto prohibition,â explains Mary Fiore-Wagner, an environmental scientist with the LRWQCB. The decision to allow the use of pesticides in the lake now rests in the hands of California State Water Resources Control Board. Carl Young, interim executive director of the League to Save Lake Tahoe/Keep Tahoe Blue, told the Associated Press that the plan poses a threat to the lake’s water quality and the public’s health, and he’s concerned visitors and residents could be exposed to pesticides through Tahoe’s fish and drinking water. The League is urging regulators to use non-chemical methods, including bottom barriers that involve the use of large mats to starve the species of sunlight and oxygen. The aquatic plants can be managed through mechanical harvesting. The U.S. Army Corps of Engineers estimates economic impacts from introductions […]
Posted in Alternatives/Organics, Antibacterial, California, Chemicals, Children/Schools, Genetic Engineering, Nevada, State/Local, Water | 3 Comments »
12
Dec
(Beyond Pesticides, December 12, 2011) Continuing a long tradition of public participation in setting organic standards, more than one thousand people submitted comments leading up to the National Organic Standards Board (NOSB) meeting in Savannah, GA between November 30 and December 1. View webcast of 4-day meeting. The comments were in response to specific agenda items which the NOSB was convening to consider, including many important materials review decisions. At the meeting, NOSB members frequently cited both individual comments and the collective weight of public opinion as decisive factors in determining how they voted. Beyond Pesticides thanks everyone who used our Keeping Organic Strong webpage as a resource for developing their comments and encourages the public to continue making your voice heard in the development of organic standards. The NOSB was established under the Organic Foods Production Act of 1990 (OFPA) which authorizes the U.S. Department of Agriculture (USDA) to operate an organic certification program. Appointed by the Secretary of Agriculture, the 15-member NOSB is responsible for making recommendations on whether a substance should be allowed or prohibited in organic production or handling, assisting in the development of standards for substances used in organic production, and advising the Secretary on […]
Posted in Agriculture, Alternatives/Organics, National Organic Standards Board/National Organic Program | No Comments »
01
Dec
(Beyond Pesticides, December 1, 2011) Ongoing research at the U.S. Department of Agricultureâs (USDA) Sustainable Agricultural Systems Lab (SASL) finds that organic grain production reduces greenhouse gas emissions relative to chemical-intensive no-till and chisel-plow production systems. In fact, the research concludes that the organic system removes more greenhouse gases from the atmosphere than it contributes, while the other systems result in net increases. The results are based on data from comparable three-year crop rotations maintained for each production system at the Labâs farm in Beltsville, MD under the direction of Michel Cavigelli, PhD. The rotations mirror typical commercial grain production operations in the mid-Atlantic region that begin with corn followed by a rye grass cover crop, rotate to soybeans and winter wheat in the second year, and conclude with a legume crop. Dr. Cavigelliâs team identified the substantial energy savings achieved in the organic system by using natural fertility sources, especially for nitrogen, as the critical factor in reducing its overall impact on climate change. Previous research shows that carbon dioxide and nitrous oxide are the two most potent greenhouse gases that are produced and released as a consequence of crop production. It is also known that, due to its […]
Posted in Alternatives/Organics, Climate Change | No Comments »
21
Nov
(Beyond Pesticides, November 21, 2011) Two recent reports from the Organic Center can help consumers identify food choices that will reduce their intake of pesticides while enhancing the overall nutritional content of their diets. The reports, entitled Dietary Risk Index and Transforming Jane Doeâs Diet are based upon state-of-the-art pesticide residue and risk assessment research conducted by USDA and EPA. The reports establish that switching to organically produced and handled foods significantly reduces the amount of pesticides consumers will receive from their diet and that a few simple changes in behavior can drive such exposure to nearly zero. Noting that extensive research has identified fresh fruits and vegetables as by far the greatest source of pesticide exposure and risk in our diets, the Dietary Risk Index (DRI) report focuses on the relative risk of choices within these food groups. The DRI calculates expected risk by weighing the toxicity of a specific pesticide with the amount of the substance to which consumers are likely to be exposed. This estimated risk is then measured against the EPA-established âlevel of concernâ, the exposure level beyond which EPA can no longer assert a âreasonable certainty of no harm.â The DRI calculations for individual pesticides […]
Posted in Alternatives/Organics | No Comments »
18
Nov
(Beyond Pesticides, November 18, 2011) Organic crop systems can provide similar yields and much higher economic returns than a conventional corn-soybean rotation, according to thirteen years of data from a side-by-side comparison at Iowa State Universityâs Neely-Kinyon Research and Demonstration Farm. The Universityâs Long-Term Agroecological Research Experiment (LTAR) began in 1998 with support from the Leopold Center for Sustainable Agriculture. LTAR is one of the longest running replicated comparisons in the country. Kathleen Delate, PhD., professor in ISU Agronomy and Horticulture, leads the project. âThe transitioning years are the hardest years,â Dr. Delate said, explaining that the project was originally designed to help farmers make the shift into an organic system. To sell a product as organic, the crop must be raised for three years prior to harvest in accordance with organic systems plans on land that has not been treated with synthetic fertilizers and has only been exposed to substances placed on the “NationL List, ” which is established by the Organic Foods Production Act. The LTAR experiment shows that organic crops can remain competitive with conventional crops even during the three-year transition. Averaged over 13 years, yields of organic corn, soybean, and oats have been equivalent to or […]
Posted in Agriculture, Alternatives/Organics | No Comments »
11
Nov
(Beyond Pesticides, November 11, 2011) The National Organic Standards Board (NOSB) will meet this month to decide on a range of issues regarding the future of organic food and farming in the U.S. The NOSB will vote to allow or prohibit substances and practices in certified organic food and farming after considering input from the public. Your participation is vital to this process. Public input can be highly influential to the development of organic standards, as farmers and consumers relay their ideas to the board for consideration, but only if you speak up. The public comment period closes after this Sunday, November 13. Take Action. There is a wide range of issues that the board is considering for this meeting including pest control materials, inputs in processed food, internal board procedures, and many others. You can access background on these issues on our Keeping Organic Strong webpage and then send comments into USDA by the end of Sunday, November 13. Itâs easy. Submit your comments using this form. This will bring you to a form in which to fill out your personal information and type your comment. When filling out your personal information, you only need to fill in the […]
Posted in Agriculture, Alternatives/Organics, National Organic Standards Board/National Organic Program, Take Action | 3 Comments »
10
Nov
(Beyond Pesticides, November 10, 2011) Two new studies released last week add further proof that the popularity of organic food is not just an elitist trend. One report by the Organic Trade Association (OTA), The 2011 U.S. Familiesâ Organic Attitudes and Beliefs Study, finds that 78 percent of U.S. families purchase organic food. Another study by SCALE, Inc. finds that organic food is generally cheaper at farmers markets than at grocery stores in Southeast U.S. OTA partnered with KIWI Magazine, and polled nearly 1,300 U.S. families about their attitudes and behaviors relating to organic food. The total sample reflects the target population of U.S. households with a confidence interval of +/-3% at the 95% confidence level. This is the third year the study has been conducted. According to OTA, it contains in-depth information about organic consumersâ demographics, purchase motivation, understanding of organic, willingness to substitute when organic is not available, and attitudes about genetically modified organisms (GMOs). The other study, Is Local Food Affordable for Ordinary Folks?, compares farmers markets and supermarkets throughout 19 different communities in six Southeast states, including Virginia, Tennessee, West Virginia, Kentucky, North Carolina and South Carolina. Though the study focuses on local foods, it did […]
Posted in Alternatives/Organics, Kentucky, Tennessee | No Comments »
09
Nov
(Beyond Pesticides, November 9, 2011) A 2009 European Union (EU) report on pesticide residues, published yesterday by the European Food Safety Authority (EFSA), shows food on the European market is still heavily contaminated with cocktails of pesticides. The percentage of EU food in shops and markets with multiple residues remains at a high level of 25.1%, meaning only a slight improvement in the last five years of reporting. The highest reported number of pesticide chemical residues in one food item remains at 26: One sample analyzed had 26 different pesticides! Like the U.S. where consumers are exposed through food and drinking water to a variety of chemical mixtures of pesticide food residues, EU citizens also continue to be exposed to mixtures of pesticides on a daily basis. According to the report , compliance with the legal maximum residue levels (MRLs) for pesticides in food rose to 97.4 percent of the analyzed samples in 2009, up by about one percentage point from 2008, EFSA said. However, like their counterparts in the U.S., the regulatory entities EFSA and European Commission still do not protect people against the effects of mixtures. Health standards for pesticide residues do not take these effects into account. […]
Posted in Alternatives/Organics, International | No Comments »
04
Nov
(Beyond Pesticides, November 4, 2011) On Tuesday, November 1, Senator Sherrod Brown of Ohio and Representative Chellie Pingree of Maine along with 35 original co-sponsors, introduced the Local Farms, Food, and Jobs Act (LFFJA) â S. 1773 and H.R. 3286 â a comprehensive bill intended for inclusion in the 2012 Farm Bill. The legislation helps farmers and ranchers by addressing production, aggregation, processing, marketing, and distribution needs to access growing local and regional food markets. The bill would provide critical support for a number of programs that benefit organic farmers and the organic industry, as well. It also assists consumers by improving access to healthy food. The measure provides secure farm bill funding for critically important programs that support organic and family farms, expand new farming opportunities, create rural jobs, and invest in the local food and agriculture economy. Take action. Among the provisions of the bill that would benefit organic producers are an increase in funding and payment caps for certification assistance, elimination of surcharges on crop insurance for organic farmers and development of more accurate price estimates, and expansion of specialty crop block grants that often are awarded to organic operations (âspecialty cropsâ being the U.S. Department of […]
Posted in Agriculture, Alternatives/Organics, National Politics | No Comments »
03
Nov
(Beyond Pesticides, November 3, 2011) The State of Ohio announced Friday, October 28 it will rescind a regulation that has prohibited organic dairy product labeling from declaring that antibiotics, pesticides or synthetic hormones are not used. In a lawsuit filed by the Organic Trade Association (OTA), the Sixth Circuit Court of Appeals found that proposed restrictions violate the First Amendment of the constitution. As a result, Ohio has abandoned the rule, thus allowing labeling to proudly state that organic dairy products are produced in accordance with federal organic standards under the Organic Foods Production Act, and therefore without the use of synthetic growth hormones or antibiotics. âThis is significant for all of us who support what the organic foods are about, and for consumers who carefully read food labels to find out whatâs in their food and how itâs produced,â said Christine Bushway, Executive Director and CEO for OTA. âThe Sixth Circuit opinion made it clear that states cannot unduly restrict organic labels or consumersâ right to know how their food is produced, and the State of Ohioâs actions today make it clear that the fight to keep labels accurate by OTA, its members, farmers, and consumers was worth it.â […]
Posted in Alternatives/Organics, Label Claims, Ohio | No Comments »
24
Oct
(Beyond Pesticides, October 24, 2011) This article is reprinted from the SafeLawns blog by Paul Tukey. Mr. Tukey, the founder of SafeLawns.org, is an American journalist, author, filmmaker and motivational public speaker, who has a particular expertise in environmental issues related to landscape management and water quality. We thank Paul for all of his tremendous work and for the opportunity to discuss on the safelawns.org blog the 30-year history of Beyond Pesticides’ work and the vision and purpose of our work. We will be hosting a reception with live music and screening of the film Vanishing of the Bees on Thursday, October 27th, 6:30 pm at Busboys and Poets (14th and V Streets NW) in Washington, DC. For more information and to RSVP, click here. Read Mr. Tukey’s interview below with Beyond Pesticides Executive Director Jay Feldman, discussing the accomplishments of the last 30 years: Paul Tukey: This coming Thursday, Oct. 27, a remarkable achievement will be marked in Washington, D.C., when Beyond Pesticides celebrates its 30th anniversary. Beginning at 6:30 p.m. at Busboys & Poets, leaders of the environmental movement will come together with the general public for a benefit reception with live music and organic food and drinks. […]
Posted in Alternatives/Organics, Announcements, Events | No Comments »
21
Oct
(Beyond Pesticides, October 20, 2011) With the National Organic Standards Board (NOSB) set to meet next month to decide on a range of issues regarding the future of organic food and farming in the United States, the public is invied to weigh in on a set of issues that continue to shape organic standards. The 15-member board will vote to allow or prohibit substances and practices in certified organic production and consider the adoption of new rules that address the functioning of the board and public participation –after considering input from any interested members of the public, such as farmers, consumers, food processors, or professionals through written comments and/or public testimony. Public participation is vital to the development of organic standards, as farmers and consumers relay their ideas to the board for consideration. Take action now. The documents on the issues that will be considered at the Fall 2011 NOSB meeting (November 29-December 2, 2011 in Savannah, GA) are open for written public comment until November 13. To read all of the recommendations from the various board committees, go to this page and select the committees from the drop down menu. The proposed recommendations are then sorted by date. The […]
Posted in Alternatives/Organics, National Organic Standards Board/National Organic Program | No Comments »
13
Oct
(Beyond Pesticides, October 13, 2011) A new report released by The Cornucopia Institute reveals the deceptive marketing practices in the natural foods industry by some of the nationâs largest breakfast cereal manufacturers, demonstrating the importance of the organic label in order to avoid synthetic pesticides and genetically engineered food. In some cases, companies are selling products contaminated with toxic agrichemicals and Monsantoâs genetically modified organisms while promoting them as ânatural.â The new report, Cereal Crimes: How âNaturalâ Claims Deceive Consumers and Undermine the Organic LabelââA Look Down the Cereal and Granola Aisle, explores in-depth this growing trend of marketing conventional foods as ânaturalâ to lure health-conscious and eco-conscious consumers and their shopping dollars. As Beyond Pesticides has pointed out in previous Daily News entries and our fact sheet, âMaking Sure Green Consumer Claims Are Truthful,â the report also acknowledges that there are no restrictions for foods labeled ânatural.â Unlike the organic label, no government agency, certification group, or other independent entity defines the term ânaturalâ on processed food packages or ensures that the claim has merit. Analysis by Cornucopia of wholesale and retail cereal and granola prices reveals that ânaturalâ products often are priced similarly or higher than equivalent organic […]
Posted in Alternatives/Organics, Label Claims | No Comments »
26
Aug
(Beyond Pesticides, August 26, 2011) The U.S. Department of Agriculture (USDA) has announced that it will hold a free public listening session on the departmentâs activities related to organic food and farming in order to gather input from farmers, consumers, and other interested parties regarding a wide range of subjects. The agency is hoping to gather more feedback and guidance from stakeholders in the world of organic food and agriculture in order to âhelp USDA programs examine and prioritize their activities and objectives in order to best serve the organic community.â The scope of matters on which USDA is hoping to hear comments is very broad and seemingly includes any of the departmentâs actions which could potentially impact organic growing practices or organic producers. The announcement for the listening session outlined two general areas on which comments can be submitted. The first concerns any activities of the National Organic Program (NOP) that do not relate to matters likely to come before the National Organic Standards Board (NOSB). Since the NOSB has its own process for soliciting and reviewing public comments at its biannual meetings, NOP is seeking comments on actions that it takes which are independent of the NOSB. These […]
Posted in Alternatives/Organics, National Organic Standards Board/National Organic Program | No Comments »
24
Aug
(Beyond Pesticides, August 24, 2011) Scientists say the fungus that causes apple scab appears to be growing more resistant to pesticides routinely used to control the fungus, worsening the threat of outbreaks in commercial orchards. For decades, manufacturers have come up with replacements for chemical mixtures the fungus outwitted. By using a rotating lineup of fungicides from year to year, farmers usually stayed a step ahead of the scab. But the fungus now appears to be overcoming multiple fungicides at once. In a paper published this month in the journal Plant Disease, researchers described samples collected in Indiana and Michigan that are resisting all four of the most commonly used chemical treatments: dodine, kresoxim-methyl, myclobutanil, and thiophanate-methyl. “We’ve dealt with fungicide resistance over the years, but this time we’re losing three or four different classes of completely unrelated fungicides at the same time,” said Henry Ngugi, PhD, a plant pathologist with Penn State University’s Fruit Research and Extension Center. “We have to literally go back to the drawing board.” Another ominous sign: The fungus apparently hasn’t developed any new weaknesses while evolving to resist the pesticides, unlike what usually happens in nature, the study found. Anecdotal reports from orchard owners […]
Posted in Agriculture, Alternatives/Organics, Chlorothalonil, Maneb, Ziram | No Comments »