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Daily News Blog

Archive for the 'Alternatives/Organics' Category


15
Aug

The Ultimate Buzz Kill – Officials Find Pesticides in Marijuana… Again

(Beyond Pesticides, August 14, 2023) Marijuana regulators in the state of Washington issued administrative holds on 18 licenses due to pesticide-contaminated marijuana, forcing producers and processors to cease operations until now. This shutdown of legal marijuana businesses serves as a window into a broader historical backdrop of pesticide issues within the marijuana industry. Within Washington, pesticide concerns have been growing since a study in 2018 of legal marijuana farms in the state had 84.6% (of 26 samples) with significant quantities of pesticides including insecticides, fungicides, miticides, and herbicides. Last year, a national study identified a list of contaminants in 36 states and the District of Columbia and found 551 pesticides within cannabis products. For over a decade, Beyond Pesticides has sounded the alarm about the highly-concentrated levels of pesticides in marijuana products, calling on state officials to require organic marijuana, especially in the context of medical marijuana. The absence of federal regulations for pesticides in cannabis production has raised significant concerns about exposure risks for recreational and medicinal use, exposure risks to workers, and potential environmental contamination impacting wildlife. Since marijuana is classified as a Schedule 1 narcotic under the Controlled Substances Act, the EPA does not regulate pesticides in […]

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10
Aug

Is “Safer Choice” Eliminating Hazardous Chemical Use through Management and Product Choice?

(Beyond Pesticides, August 10, 2023) The U.S. Environmental Protection Agency’s (EPA) Safer Choice program, a voluntary labeling program, has announced an opportunity for public comment on new areas of work—opening up a public discussion of priorities for identifying less toxic products in the marketplace. EPA describes the labeling program as a part of its Pollution Prevention (P2) program, which, according to the agency, “includes practices that reduce, eliminate, or prevent pollution at its source, such as using safer ingredients in products.” A July 17 Federal Registration Notice, Stakeholder Engagement Opportunity for the Safer Choice and Design for the Environment (DfE) Programs’ Potential Expansion Into New Product Categories, announces a public listening session August 28, and a public comment deadline of September 11, 2023 In the face of existential health, biodiversity, and climate crises, advocates say that the question before EPA is whether strict systemic measures will be adopted to meet the urgency of the crises. This will require the quick phase out of hazardous substances that are contributing to the existential crises (including petrochemical pesticides and fertilizers). While the Safer Choice program can identify practices and products that are not harmful to health, biodiversity, and climate, it is a labeling rather […]

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09
Aug

Feds To Evaluate Endangered Species Impacts under Clean Water Act’s General Pesticide Permits

(Beyond Pesticides, August 9, 2023) The U.S. Fish and Wildlife Service (FWS) and U.S. Environmental Protection Agency (EPA) have agreed to assess the harms of applying pesticides in waterways to threatened and endangered wildlife under a legal agreement with the Center for Biological Diversity (CBD). Under the Clean Water Act, a National Pollutant Discharge Elimination Systems (NPDES) permit is needed when pollutants are discharged from a point source (an identifiable source) into the “Waters of the United States” (WOTUS), but federal authorities, in their general permitting process, have long failed to assess effects to threatened and endangered species. According to the terms of the settlement agreement, FWS must complete consultations required under the Endangered Species Act (ESA) to prevent harm to protected species such as bull trout, pallid sturgeon, Oregon spotted frogs, and other threatened aquatic organisms.  The agreement is a step in implementing the 1973 ESA, a law that is saving numerous species from extinction, facilitating the recovery of hundreds more, and enabling the preservation of habitats. The humpback whale, bald eagle, and snail darter are among the species that have been saved thanks to the ESA. For years, Beyond Pesticides has reported on decades of neglecting to fully implement and fund […]

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03
Aug

Reflections: “I’m a Barbie girl, in the Barbie world. Life in plastic is [NOT] fantastic”

It’s hard to escape the impacts of the Barbie movie’s estimated $150 million marketing campaign. You may have noticed advertisements with Burger King’s pink burgers to Airbnb’s Barbie Dreamhouse. Perhaps you have seen viral memes or news stories about the movie’s takedown of the patriarchy or critiques that the movie is overly woke. The pink symbol of Barbie is often followed by a second symbol — plastic. The total mass of plastics on Earth now doubles the total mass of all living mammals, so would Barbie say life is fantastic? Or, might she urge the National Organic Standards Board to ban plastic mulch, an issue on the agenda at the Board’s upcoming October meeting? Plastic products, including those used in chemical-intensive and organic agriculture, and pesticides, play a seemingly necessary role in modern life, encompassing many items beyond straws and grocery bags. However, the convenience of plastic comes at a considerable cost to the planet and human health. The majority of plastics are manufactured using oil and gas, exacerbating climate change. Scientists are becoming increasingly alarmed by the repercussions of microplastics, which are plastic particles smaller than 5 mm in size. In 2022, Philip Landrigan, M.D., et al., announced the […]

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01
Aug

EPA Releases Ten Years of Data on How Pesticides Impact Humans, Pets, Wildlife, and More

(Beyond Pesticides, August 1, 2023) The U.S. Environmental Protection Agency has announced that it is publishing a decade’s worth of pesticide incident data in a searchable database that will be updated on a monthly basis. The Incident Data System (IDS), with poisoning reports generated mostly from chemical manufacturers, states, a national hotline, and poison control centers, offers information on reported pesticide exposures from accidental poisoning of pets, wildlife, and humans, to pesticide drift, noncompliance, and other pesticide incidents that may be associated with product uses in compliance with label instructions. Tracking this incident data is essential to understanding the risks and damages associated with pesticide use.   The bulk of the data on incidents is from consumer reports to chemical manufacturers. Chemical companies are required under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), Section 6(a)(2) to report incidents: “If at any time after the registration of a pesticide the registrant has additional factual information regarding unreasonable adverse effects on the environment of the pesticide, the registrant shall submit such information to the Administrator.” The determine of threshold number of incidents required to be reported as a pattern of “unreasonable adverse effects” is left to the manufacturers to determine. Through […]

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25
Jul

Advocates and Scientists Urge that USGS Pesticide Data Program Be Elevated, Not Eliminated as Proposed 

(Beyond Pesticides, July 25, 2023) How can scientists fight the elimination of national pesticide data? More data! A new report surveys 58 academic institutions, nongovernmental organizations, government officials, and businesses to measure the scientific, educational, and policy use of the United States Geological Survey (USGS) Pesticide National Synthesis Project (PNSP), a database that is getting phased out by the current administration.   According to the report authors, Maggie Douglas, PhD, Bill Freese, Joseph G. Grzywacz, PhD, and Nathan Donley, PhD, the PNSP is the “most comprehensive public description of pesticide use in U.S. agriculture.” Despite its widespread use across the government and 348 citations since 2010, the database has been degraded in recent years, including a shift from monitoring 400 pesticides to 72 pesticides in 2019. Moreover, starting in 2024, estimates of agricultural pesticide use will be released every five years (instead of annually). Advocates believe the loss of PNSP data could further hinder the ability to manage pesticide impacts on humans, agriculture, and the environment. These concerns are outlined in a letter to USGS and the Department of Interior, signed by more than 250 scientists.  Beyond Pesticides extensively tracks USGS data and resulting findings to inform local and state […]

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18
Jul

Funds Support Compliance with International Treaty To Save the Oceans and Biodiversity, Combat Climate Threats

(Beyond Pesticides, July 18, 2023) The Global Environment Facility (GEF) Council, the governing body for the world’s largest source of multilateral funding for biodiversity loss and climate change, has authorized $34 million USD to support the new high seas treaty agreement announced on March 4. The move marks a significant step toward safeguarding the delicate ecosystems of the world’s oceans and promoting sustainable practices on a global scale. The oceans suffer from severe pollution caused by various substances, including pesticides, agricultural runoff, industrial and petrochemical waste, and synthetic chemicals found in plastics. These pollutants pose a significant threat to human health. The ecological consequences of ocean pollution have long been highlighted by Beyond Pesticides. The March draft agreement was approved by 193 countries under the United Nations Convention on the Law of the Sea on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction (BBNJ). Then in June, the BBNJ agreement was adopted by consensus at the United Nations meeting in New York. The agreement will be open for countries to sign on September 20, 2023, after the Sustainable Development Goal Summit. In order for the treaty to be entered into force, sixty countries must […]

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17
Jul

Grassroots Power, Democratic Process, and Organic—Pillars of Transformative Change—under Threat

(Beyond Pesticides, July 17, 2023) Students of environmental policy quickly learn that the most meaningful change to protect health and the environment begins with action in local communities. The challenge now is to preserve the rights of communities under federal law to restrict pesticides and advance local protections through the adoption of eco- and health-friendly, organic land management practices. As is known from history, with the leadership of local communities, the states and the federal government will follow. History of Action in Communities and States Major actions on the banning or restricting of specific pesticides over the last seven decades—from DDT (in Michigan and Wisconsin), 2,4,5-T [1/2 of Agent Orange] (in Oregon [read A Bitter Fog]), to chlordane (New York)—began with calls from the grassroots about dying wildlife to elevated cancer and miscarriage rates and other diseases. But, these chemical incidents (which continue to today with similar campaigns, but different chemical names like glyphosate, imidacloprid (neonicotinoids), and others), launched broader community-based efforts to curtail overall pesticide use—stop drift, runoff and other nontarget exposure—and require organic-compatible practices. Tracing the history—from Mendocino County, CA to Lincoln County, OR, to Casey, WI (upheld by the U.S. Supreme Court), to Montgomery County, MD, to […]

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14
Jul

Soil Amended with Insect Exoskeleton Is Effective Alternative to Harmful Chemical Fertilizers

(Beyond Pesticides, June 14, 2023) The exoskeleton of the black soldier fly (BSF; Hermetica illucens) has the potential to be an effective organic fertilizer. A study in the journal Agriculture, Ecosystems & Environment highlights the positive impacts on plant size, flower count, seed production, appeal to pollinators, and resilience to herbivory that the fly’s molted exoskeleton (or exuviae) can have when used as a soil supplement. The use of insect exuviae as an organic alternative to harmful synthetic fertilizers is an important step toward an environment free from chemical contaminants, and BSF are uniquely equipped to contribute to a regenerative organic agricultural system. The study set out to determine the impacts of BSF exuviae on plant growth, resilience to herbivory, and pollination. The scientists divided black mustard plants into four different treatment groups: 1) grown in soil amended with BSF powdered exuviae; 2) control group planted in chemically-treated (conventional) soil; 3) grown in amended soil and subjected to increased herbivory from caterpillars (Pieris brassicae) and aphids (Brevicoryne brassicae); and 4) planted in conventional soil and subjected to increased pest exposure. Scientists measured plant growth, flowering status, seed production, herbivore abundance, and pollinator activity. After three weeks, the supplemented soil grew […]

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07
Jul

Pesticide Lobby Pushes Farm Bill Amendment to Strip Localities and States from Restricting Pesticides

The introduction of the Agricultural Labeling Uniformity Act in the U.S. House of Representatives, expected to be a part of the Farm Bill negotiations, is raising the specter (yet again) of undermining local and state authority to protect the health of their residents from pesticides—effectively overturning decades of Supreme Court precedent.

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28
Jun

Deaths from Building Fumigation Raise Long-standing Health Concerns, Calls for Ban and Adoption of Alternatives

(Beyond Pesticides, June 28, 2023) An autopsy report from the Broward County Medical Examiner’s office in Florida found that acute exposure to the fumigant sulfuryl fluoride resulted in the death of two pest control workers from Pompano Beach. After the fumigation of a Pompano Beach warehouse in April, three workers fell ill, and two died after pesticide application. The highly toxic chemical can be used by the chemical pest control industry for killing termites, powder post beetles, old house borers, bedbugs, carpet beetles, moths, cockroaches, rats, and mice. In addition to being highly acutely toxic, sulfuryl fluoride, as a fluoride compound, can cause various chronic adverse health effects, including cancer, endocrine disruption, neurotoxicity (reduced IQ), and reproductive damage. This case represents the broader issue of how toxic chemical compounds can enter the body, causing physiological damage. In fact, just last March 2023, a case report article published in Frontier in Public Health confirms one of the first reported deaths from inhalation of the fumigant 1,3-dichloropropene (1,3-D or Telone) during work, resulting in acute renal (kidney) failure, hyperkalemia (high potassium levels in the blood), and brain edema (swelling). Considering over 300 environmental contaminants and their byproducts, including pesticides, are chemicals commonly present in human blood and urine samples, toxicity risk increases when entering the […]

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26
Jun

Congress Asked to Help Stop Ecosystem Collapse in the Farm Bill by Preserving Local Authority to Restrict Pesticides

(Beyond Pesticides, June 26, 2023) In view of EPA’s failure to protect pollinators from pesticides, the lives of those essential insects, birds, and mammals are increasingly dependent on state and local laws that under threat of U.S. Congressional action in the upcoming Farm Bill. Tell Congress: Don’t allow the Farm Bill to preempt state and local laws. The Farm Bill covers many areas—ranging from the supplemental nutritional assistance program (SNAP) to trade—and one provision that the pesticide industry would like to include is preemption of local authority to restrict pesticide use. This attack on local governance  would undercut the local democratic process to protect public health and safety, especially important in the absence of adequate federal protection of the ecosystems that sustain life. As Congress drafts the 2023 Farm Bill, there is an opportunity for many topics—good and bad—to be introduced. Dating back to Franklin D. Roosevelt’s New Deal of the 1930s, which addressed threats posed by the Great Depression and drought, the Farm Bill is an omnibus bill passed every five years. It is designed to secure a sufficient food supply, establish fair food prices for both farmers and consumers, and protect the soil and other natural resources on […]

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23
Jun

Ecosystem Critical to All Pollinators: Popular and Unpopular Pollinator Guide

(Beyond Pesticides, June 23, 2023) Pollinators are especially important to the ecosystem. They pollinate plants by going from flower to flower and transferring pollen. Without pollinators, availability would be severely limited or cut off to many delicious foods, such as apples, almonds, cherries, blueberries, pumpkins, and many others. Many types of pollinators, like honey bees, bumble bees, and butterflies, are declining due to loss of habitat, widespread use of toxic pesticides, parasites, and disease. Help these important beneficial creatures by Not using toxic pesticides Planting pollinator habitats, like colorful flowers, gardens, and trees Telling your friends and family all about the importance of pollinators. Wild and Managed Bees Wild and managed bees play a crucial role in the global food system. About two-thirds of the world’s most important crops benefit from bee pollination, including coffee, cacao, and many fruits and vegetables. Wild pollination is becoming increasingly important with the growing instability of managed honey bee colonies. According to one study, wild bees’ agricultural value is now similar to that of honey bees, which are no longer considered wild in many regions due to their intense management. While many may prefer butterflies and birds to pay a visit to their gardens […]

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22
Jun

Pesticide Threat to Pollinators Decreases Agricultural and Economic Productivity, and Food Security

(Beyond Pesticides, June 22, 2023) Since the early twentieth century, ‘migratory’ beekeepers have provided a critical service to U.S. agriculture by moving their hives seasonally to pollinate a variety of crops. Annually, commercial beekeeping adds between $15 and $20 billion in economic value to agriculture, which is a major industry in the United States, with 21.1 million full- and part-time jobs related to the agricultural and food sectors—10.5 percent of total U.S. employment. Before insects and pollinators like bees evolved to pollinate, pollination occurred through the wind, scattering the pollen from the plants and landing on other flowers that could reproduce. However, commercial pollination services contribute to increased yields. Without commercial pollination, food prices would rise, the farm sector would suffer globally, and the security and variety of the food supply would diminish. With the wild insect pollinator populations already in serious decline, commercial, migratory beekeeping is more than ever a vital piece of the agricultural economy. With pollinator decline, as an integral part of worldwide biodiversity collapse and the “insect apocalypse,” commercial beekeepers face collapse as well. The United Nations states that 80 percent of the 115 top global food crops depend on insect pollination, with one-third of all U.S. crops depending on pollinators, according to the U.S. […]

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21
Jun

A Reminder for Pollinator Week: Protect Pollinator and Habitat and Well-Being Against Dramatic Declines

(Beyond Pesticides, June 21, 2023) Pollinators––bees, butterflies, birds, bats, and other organisms––make a critical contribution to plant health, crop productivity, and the preservation of natural resources. However, pesticides consistently act as a key contributor to dramatic pollinator declines. Much research attributes the decline of insect pollinators over the last several decades to the interaction of multiple environmental stressors, from climate change to pesticide use, disease, habitat destruction, and other factors. Roughly a quarter of the global insect population has disappeared since 1990, according to research published in the journal Science. Monarchs are near extinction, and beekeepers continue to experience declines that are putting them out of business. We continue to lose mayflies, the foundation of many food chains, and fireflies, the foundation of many childhood summer memories. The declines in many bird species likely have close links to insect declines. Recent research finds that three billion birds, or 29% of bird abundance, have been lost since the 1970s. In a world where habitat loss and fragmentation show no sign of abating, scientists have concluded that the globe cannot afford to continue to subject its critically important wild insects to these combined threats.  Clean air, water, and healthy soils are integral to ecosystem function, interacting between Earth’s four main spheres (i.e., hydrosphere, […]

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16
Jun

This Juneteenth, We Highlight the Ongoing Fight for Environmental Justice

(Beyond Pesticides, June 16, 2023) Juneteenth is a celebration of freedom for the last 250,000 enslaved people in Galveston, Texas, but it is also a reminder that justice has not historically been “swift” or complete for Black Americans. The holiday commemorates the abolition of slavery in Texas on June 19, 1865, two and a half years after the Emancipation Proclamation.  According to a 2022 Gallup Poll, 40 percent of Americans know “a little bit” or “nothing at all” about Juneteenth. While this is a significant improvement in comparison to the 60 percent for the aforementioned metric in the previous year (when the holiday was federally recognized), greater public awareness is needed. This holiday is a time for individuals and organizations to acknowledge and reflect on their past and current actions or inactions that perpetuate systemic racism. As known from the history books, the Emancipation Proclamation was signed on January 1, 1863, and the civil war ended on April 9, 1865. Juneteenth is a lesser-known anniversary commemorating the emancipation of enslaved people who received news of their freedom two and a half years after Abraham Lincoln’s freedom proclamation. While the technologies in the 19th century had a much slower travel time, […]

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12
Jun

Take Action: Help Boost Transition to Organic Agriculture

(Beyond Pesticides, June 12, 2023) In view of the urgent need to enact a transformation to organic agriculture in order to address existential threats to human health, climate, and biodiversity, U.S. Senator Peter Welch (VT) and U.S. Representatives Jimmy Panetta (CA-19) and Alma Adams (NC-12) have introduced Senate and House versions of the Opportunities in Organic Act to reduce cost-barriers, expand access to new markets and resources, and provide support and training. >>Tell your U.S. Representative and U.S. Senators to cosponsor H.R. 3650 and S. 1582, the Opportunities in Organic Act. Thank those who are current cosponsors. Although some existing programs support organic agriculture, transition, and research, they do not level the playing field for organic producers and do not adequately or holistically meet their needs. Organic certification costs and processes remain a barrier for many, and most producers have limited access to organic-specific technical assistance or mentorship – especially in regions with smaller organic sectors. The Opportunities in Organic Act will expand the existing National Organic Certification Cost-Share Program to reduce these barriers and better serve organic producers. The Opportunities in Organic Act has three major components: Organic Certification Cost-Share. The Opportunities in Organic Act will modernize reimbursements for organic certification, […]

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06
Jun

Hawaii Officials Prepare to Release Wasp as Biocontrol to Protect Coffee Crops

(Beyond Pesticides, June 6, 2023) Government agencies in Hawaii are making preparations to release a small parasitoid in an attempt to control infestations of coffee berry borer (CBB) in the state, according to a release published by the University of Hawaii.  “This biological control agent has the potential to make significant positive economic impacts in the HawaiĘťi coffee industry, and offers an environmentally safe way to manage CBB,” says Mark Wright, PhD, professor at UH. “The HawaiĘťi coffee industry is economically and culturally significant, and we hope that this work will improve the lives of many people associated with the industry.” The planned release comes at a time of increasing interest in nontoxic biological pest management as a means of reducing the harmful effects of industrially produced pesticides. As early as fall 2023, the U.S. Department of Agriculture’s Agriculture Research Service (USDA ARS) and UH’s Department of Plant and Environmental Protection Services plan to release thousands of parasitic wasps throughout coffee growing areas in Maui, O’ahu and the Big Island. The parasitoid in question is Phymastichus coffea, a wasp that lays its eggs in the abdomen of coffee berry borers. According to researchers, the wasp becomes attracted to the coffee […]

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01
Jun

New York City Parks Dept. and Advocates Announce Organic Demonstration Sites Following Passage of Law

Eco-Friendly Parks for All (EFPA)*, a coalition of environmental, public health and political action organizations, has teamed up with Beyond Pesticides, New York City Parks and Recreation Department, and Stonyfield Organic Yogurt to celebrate the success of pilot organic land management programs at eight sites across the five boroughs. 

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26
Apr

Organic Beekeeping Able to Manage Bees As or More Successfully than Chemical-Intensive Approach

(Beyond Pesticides, April 26, 2023) Organic methods of honey bee management are just as or more effective than conventional, chemical-intensive management systems, according to research published this month in the journal Scientific Reports by a team of Penn State scientists. This finding is important as managed pollinators continue to be under stress primarily from pesticide exposure, but also other factors, such as disease, pests, climate change, and habitat loss. In this context, beekeeping management practices can mean the difference between a colony thriving, surviving, or declining. “Beekeeping management is a key aspect of honey bee health because it can help mitigate some of the negative effects caused by these stressors,” said study co-author Robyn Underwood, PhD, of Penn State Extension. “For example, supplemental feeding can mitigate a lack of flowering plants nearby for foraging, and beekeepers can manage pests such as Varroa mites with cultural, mechanical and chemical control practices.” Scientists developed protocols to test different beekeeping management systems through participatory science. Thirty beekeepers were invited to work with scientists using protocols on experimental design, applying three different management approaches: i) conventional chemical; ii) organic; and iii) management without inputs. “We wanted to replicate what beekeepers were doing in their […]

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24
Apr

Call for Farm Bill with Organic, Restoration and Resilience without Petrochemicals, and Native Ecosystem Support

(Beyond Pesticides, April 24, 2023) It is well-known that trees and other plants help fight climate change by sequestering carbon in their wood and roots—especially when they are allowed to grow continuously. However, plants help in other ways as well.  Plants—especially trees—also moderate the climate through their participation in the water cycle. And when the weather is hot and dry, they hold the soil, preventing dust bowl conditions. In the 1930’s, the U.S. Forest Service, Civilian Conservation Corps, and the Works Progress Administration, together with local farmers, planted more than 220 million trees, developing 18,000 miles of windbreaks on the Great Plains. Unfortunately, those windbreaks are now endangered by the same economic impetus that helped create the Dust Bowl—making more room for economically valuable crops.  Tell your U.S. Representative and Senators to address climate change in the Farm Bill by incorporating a large-scale, national transition to certified organic agriculture and restoration and resilience strategies that prohibit the use of petrochemical pesticides and fertilizers. Tell Secretary of Agriculture Vilsack to implement the NOSB recommendation to remove incentives to convert native ecosystems to organic farms.    Organic farming helps resist climate change in several ways. Regenerative organic farming sequesters carbon in the soil. Organic […]

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20
Apr

Protect Bees, Trees, You and Me This Earth Day 2023

(Beyond Pesticides, April 20, 2023) This Earth Day (Saturday, April 22, 2023), Beyond Pesticides urges individuals to spread awareness of the toxic pesticides that poison people and the environment and the safe alternatives that are available to safeguard communities and the surrounding environment. On Earth Day, reflecting on the beauty and wonder of the natural world highlights the importance of restoration and preservation to maintain the planet’s intricate web of life. However, the natural world on which life depends is under dire threat as the dependence on toxic chemicals (e.g., pesticides) enables ongoing environmental contamination. Mechanized and industrial human activity perpetuates ongoing toxic chemical contamination, resulting in massive die-offs of beneficial organisms, increased rates of autoimmune diseases, endocrine disrupting and transgenerational chemical effects, and widespread pollution of our air and waterways. Beyond Pesticides, has the tools needed to increase environmental awareness in your community. Therefore, this Earth Day, Beyond Pesticides continues to advocate for the adoption of organic practices and policies that alleviate threats to ecosystems and enhance biodiversity. Michigan State University professor Thomas Dietz, Ph.D. highlights, “Continuing the successes of environmentalism—an integration of science, a concern with human well-being and justice, and a recognition of the need to consider […]

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19
Apr

Crop Diversification with Intercropping Effective at Reducing Pest Pressures, Study Finds

(Beyond Pesticides, April 18, 2023) Crop diversification is effective at reducing pest abundance in growing climates across the globe, according to a meta-analysis published this month in the Journal of Applied Ecology. The meta-analysis, which includes a review 44 field studies from six continents, provides greater weight to approaches that work with natural processes, rather than those focused on human-made chemical sprays for pest management. Within the studies reviewed, researchers aimed to understand the associational effects that resulted in either associational resistance (a decrease) or associational susceptibility (an increase) in insect herbivores on the primary crop being grown. Researchers reviewed a range of variables, comparing pest numbers in monocultures vs bicultures, evaluating whether the pest is a generalist or specialist, how it feeds (checking or piercing/sucking), its origin (native/non-native), as well as climate, crop type (only onions, brassicas, cotton, and cucurbits were evaluated), plot size, and the experimental design within each particular study.   In sum, the review represents one of the most comprehensive evaluations of intercropping to date. And the results confirm the benefits many farmers and gardeners across the world have found anecdotally in their own plots. “Overall, intercropping proved to be very effective against pests, but it did […]

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