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Daily News Blog

Archive for the 'Pollinators' Category


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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05
Jun

Take Action: With Butterfly Decline Mounting, EPA Allows Continued Pesticide Use that Causes Threat

(Beyond Pesticides, June 5, 2023) Butterflies—the most attractive of our insect fauna—are disappearing at an appalling rate, largely due to pesticide use. Recent studies have documented declines of almost 50% from 1990 to 2011 in Europe (with trends continuing), of 58 percent between 2000 and 2009 in the U.K., and of 33% from 1996–2016 in the state of Ohio in the U.S. Even steeper declines have been documented for Monarch butterflies, with an 80 percent decline of Eastern monarchs and 99 percent decline of Western monarchs. Tell EPA to eliminate pesticides that threaten butterflies. Tell the U.S. Fish and Wildlife Service and Department of Interior to help bring back butterflies by eliminating the use of pesticides that threaten them. Tell Congress that EPA and other agencies need to do their job and protect our most charismatic insects. Last year, EPA admitted that three neonicotinoid pesticides are “likely to adversely affect from two-thirds to over three-fourths of America’s endangered species—1,225 to 1,445 species in all,” including many butterfly species. On May 5 of this year, EPA released new analyses of these neonics’ effects on endangered species. EPA’s analyses focus on the species most at risk of extinction, and the results represent […]

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26
May

Study Shows 50% Decline in Butterfly Population Across the European Union, 1990-2011

(Beyond Pesticides, May 26, 2023)The use of pesticides in agriculture, transportation, and domestic settings has created a disastrous conflict for the human species. Two irreconcilable facts confront humans as they try to adapt to the consequences of earlier choices: One, industrial civilization came to believe that because some insects, fungi, and other organisms like to eat the same plants humans eat, humans can kill them with impunity; two, because some insects and other organisms are necessary to the health and reproduction of plants, humans need to protect them. At no point in history have people acknowledged that it is very difficult to kill the “bad” actors while protecting the “good” ones. There are not really two sides to the biological fact; rather, pesticides and biodiversity meet each other on a single plane, like a MĂśbius strip. Among the most dire effects of pesticides are their ruination of pollinators. Bees spring to mind as our primary pollinators, but they are by no means the only ones. Butterflies, often regarded as mere ornamental additions to a landscape, are actually significant pollinators themselves. Monarchs pollinate many flowers, including calendula and yarrow. Other butterflies pollinate dill, celery, fennel, cilantro, lettuce, peas, and basil, among […]

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18
May

Beehive Products Contain Concentration of Pesticide Residues High Enough To Be a Risk to Consumer Health

(Beyond Pesticides, May 18, 2023) A study published in Food and Chemical Toxicology finds pesticide residues in beehive products pose a safety risk from dietary consumption. Beehive products (i.e., bee bread, propolis, beeswax, and royal jelly) from beekeeping or apiculture are said to have nutraceutical (health and medicinal benefits) properties. However, a wide range of pesticide residues (i.e., tau-fluvalinate, coumaphos, chlorfenvinphos, chlorpyrifos, and amitraz), especially acaricides for killing ticks and mites in hives, may accumulate in beehive products up to concentrations that pose a potential health risk. Environmental contaminants like pesticides are ubiquitous in the environment, with 90 percent of Americans having at least one pesticide compound in their body. Many of these chemical compounds remain in soils, water (solid and liquid), and the surrounding air at levels exceeding U.S. Environmental Protection Agency (EPA) standards. Therefore, individuals still encounter pesticide compounds at varying concentrations, adding to the toxic body burden of those harmful chemicals currently in use. The research methodology includes a review of the scientific literature on pesticide contamination in hive products and a dietary risk assessment. The risk assessment calculation uses scientific studies to determine the recommended daily intake values and concentration data. Researchers compare exposure values in products to health-based guidance, determining the potential acute and […]

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09
May

Colorado Limits Bee-Toxic Pesticide Use, as EPA Details Harm to Endangered Species

(Beyond Pesticides, May 9, 2022) The Colorado legislature last week passed SB23-266, a bill limiting the use of bee-toxic neonicotinoid pesticides in the state. The news comes as other states consider their own restrictions, and the U.S. Environmental Protection Agency (EPA) is publishing details on exactly which endangered species are set to be harmed by the ongoing use of these harmful insecticides. This latest news shows that protecting pollinators is possible, and urgently needed given growing understanding of the dangers these chemicals pose to the most vulnerable wildlife in the country.   The Colorado bill requires the state’s commissioner of agriculture to adopt rules designating neonicotinoid pesticides as ‘limited-use’ pesticides in the state. With this designation, only licensed pesticide dealers may sell products containing these chemicals. Per the state’s legal code, the “limited-use” designation means the same as a federal “restricted-use” pesticide, which permits sales and use only for certified applicators. Passage of this bill marks an important step forward for pollinator protection efforts in the state. It will help ensure that homeowners are not able to easily purchase this product at big box retailers, but will allow continued use in residential areas and in agriculture. Colorado’s bill fulfills guidance […]

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03
May

Research Highlights Best Plants to Attract Important Pest Predators

(Beyond Pesticides, May 3, 2023) New research is highlighting the best flowers to plant in order to attract syrphid flies (also known as hover flies, or flower flies), an important pollinator and, in its larval stage, a predator of many common farm and garden pests. With spring in full swing, the results of the study, published in the journal Environmental Entomology by researchers at the University of New Hampshire (UNH), provide a helpful guide for growers wishing to avoid pesticide use and leverage biological pest management techniques. Study authors indicate that their research is partly a response to growers in the New England region moving away from planting brassicas due to the impact of the cabbage aphid. While there is considerable research on the benefits of syrphid flies for growers in other parts of the country, less is known about the species and flowers that support these insects in the Northeast. “This paper is the first report of the species composition of syrphids living and foraging in our local vegetable systems,” said study coauthor Anna Wallingford, PhD, of UNH. “We knew that syrphids as a group can provide important ecosystem services, and we knew plenty about the foraging behaviors of […]

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27
Apr

Nevada Assembly Votes Unanimously To Protect Pollinators, Recognizes Deficiencies of EPA Regulations

(Beyond Pesticides, April 27, 2023) The Nevada Assembly, by unanimous vote, took the state one step closer to banning the use of neonicotinoid insecticides used on plants, with a waiver for commercial agricultural purposes. Despite dramatic declines in bee populations linked to neonicotinoid pesticides and other toxic pesticides, the U.S. Environmental Protection (EPA) and state regulatory authorities have for the most part ignored beekeepers and the independent scientific literature by allowing widespread toxic pesticide use—forcing elected officials to take protective action. Portions of the bill would take effect upon passage or no later than January 1, 2024. Maine and New Jersey have adopted similar legislation. The failure to adequately regulate pesticides under federal law, the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and EPA inaction is viewed by environmentalists as the shocking disregard for the importance of biodiversity to sustaining life. The inadequate restriction of pesticides and slower than necessary transition to organic land management practices are viewed as major contributors to the “insect apocalypse.” The legislation (A.B. 162), led by Assemblywoman Michelle Gorelow and a group of nine other Assemblymembers, illustrates a growing trend of local and state legislative bodies asserting their authority to protect against health, biodiversity, and […]

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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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17
Apr

Beyond Pesticides Partners with Natural Grocers for Organic Communities

(Beyond Pesticides, April 17, 2023) In celebration of Earth Day and its sixth annual Ladybug LoveSM  campaign throughout the month of April, Natural Grocers is supporting Beyond Pesticides. The campaign celebrates insects that play a crucial role in food supply stability, and regenerative farming practices that use ladybugs and other beneficial insects instead of harmful synthetic pesticides to control pests. Natural Grocers will donate $1 to Beyond Pesticides for each person who pledges (including renewals, so do it again even if you pledged last year) “not use chemicals that harm ladybugs and other beneficial insects on their lawn or garden, and to support 100% organic produce.” Even if you have signed the pledge in previous years, please take moment to sign! You do not need to shop at Natural Grocers to sign, but it’s a great store to shop at, if there’s one in your area!  Sign the Ladybug Pledge and support Beyond Pesticides. In partnership with major retailers like Natural Grocers and Stonyfield Organic, the Beyond Pesticides’ Parks for a Sustainable Future program provides in-depth training to assist community land managers in transitioning two public green spaces to organic landscape management, while aiming to provide the knowledge and skills […]

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12
Apr

Spring into Action in 2023; Be the Best You can Be(e)

(Beyond Pesticides, April 12, 2023) Spring represents a period of increased water, soil, and general ecosystem pollution, correlated with increased pesticide use and increased rainfall. Thus, April showers bring May flowers, and often pesticides. We offer this overview to share with friends, family, and your community in an effort to elevate the urgent need to eliminate pesticides and make the shift to organic land management. Pesticides are pervasive in the environment, affecting all ecosystems, including air, water, and soil. Like clean air and water, healthy soils are integral to ecosystem function, interacting between Earth’s four main spheres (i.e., hydrosphere, biosphere, lithosphere, and atmosphere) to support life. Pesticide use results in pervasive contamination of treated and nontarget sites. Even organic farmers and gardeners globally suffer from the widespread movement of pesticides through the air, water, and runoff from land. Attempts to protect property and ecosystems from pesticide use are a difficult, some say impossible, challenge. Efforts to prevent contamination become a large burden, with attempts to curtail pesticide drift with buffer zone areas and eliminate fertilizers or soil supplements with pesticide residues (e.g., manure and compost). Furthermore, the effects of climate change only exacerbate threats to ecosystem health, as studies show a […]

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06
Apr

Pesticides and the Climate Crisis: Bumble Bee Behavior Thwarted by Temperature and Chemical Exposure

(Beyond Pesticides, April 6, 2023) A study published in Global Change Biology adds to research demonstrating that climate change can exacerbate the adverse impacts of pesticide exposure on managed and wild bees. Temperature can alter the sublethal effect pesticides, particularly the neonicotinoid (neonic) imidacloprid and the sulfoximine sulfoxaflor, have on bumble bee behavior tied to fitness and pollination services. Both an increase and decrease in temperature can cause diverging thermal responses in bumble bee behavior. However, increasing temperature bares more severe behavior abnormalities than cooler temperatures. The pervasiveness of pesticide exposure combined with climate change threatens global species biodiversity. As has been widely reported, pollinators (such as bees, monarch butterflies, and bats) are a bellwether for environmental stress as individuals and as colonies. Pesticides intensify pollinators’ vulnerability to health risks (such as pathogens and parasites), with pesticide-contaminated conditions limiting colony productivity, growth, and survival. Now more than ever, people are changing their sentiment toward sustainability, with two-thirds of consumers stating the importance of limiting climate change impacts and 88 percent supporting greater pollution reduction. The globe is currently going through the Holocene Extinction, Earth’s 6th mass extinction, with one million species of plants and animals at risk. With the increasing rate of biodiversity loss, advocates say it is essential for […]

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05
Apr

Mayan Beekeepers Implicating Bayer/Monsanto in Die-Off of 300,000+ Bees, Harming Their Livelihood

(Beyond Pesticides, April 5, 2023) A collective of Mayan beekeepers (Colectivo de Comunidades Mayas) in Mexico are implicating chemical industry giant Bayer/Monsanto in a massive die-off of more than 300,000 bees among their combined apiaries. According to Mexico News Daily, the total value of losses represent a staggering $663,000 U.S. dollars (12 million pesos). The incident is the latest instance of the pesticide  and agrichemical industry setting up shop in a local community and wrecking the health of the local ecology. Mayan beekeepers explain that Bayer/Monsanto recently started operations on a ranch near Crucero OxĂĄ in the southern Mexican state of Campeche. A local businessman placed the 50 hectare ranch on loan to the company. Since that arrangement, the company has aerially sprayed row crops like corn and soy with undisclosed chemicals. “One of Bayer’s engineers or technicians allowed us to take samples from one of their crops after the bees started to die,” said beekeeper JosĂŠ Manuel Poot Chan, to the newspaper La Jornada Maya. “We are exhausting all possible legal instances, while members of the Welfare Ministry already came to offer humanitarian social aid to cover part of the damages.” Beekeepers suspect that the company is using the […]

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21
Mar

Chemical-Driven Agriculture Damages Microbial Health of Bee Colonies

(Beyond Pesticides, March 21, 2023) Placing honey bee hives in agricultural areas creates stress that leads to microbial imbalances, according to research published in Scientific Reports by Croatian scientists this month. The research highlights the fragility and absurdity of chemical-driven agricultural systems dependent upon both pollinators and products that harm or kill off these sensitive species. While regulators in the United States continue to prop up unsustainable practices, more and more consumers are seeking out and engaging with the key alternative to this system by supporting organic farms and foodstuffs at their farmers market and grocery store. Scientists began by creating 33 colonies from three apiaries within an agricultural region in Croatia, utilizing four brood frames, two honey frames, and mated queens. Of these 33 newly created hives, 22 were relocated to a separate agricultural region, and 11 were placed roughly six miles away from a nature preserve and considered a semi-natural area. A separate group of 10 hives that had been established on a small island (Unije, Croatia) in the Adriatic Sea were included in the study in order to represent a completely natural location. After roughly two weeks of colony formation, scientists collected samples to represent the multiple […]

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03
Mar

Groups Challenge EPA on Allowing Toxic Pesticides that Do Not Even Work and Without Its Review

(Beyond Pesticides, March 2, 2023) On February 22, a group of 65 nonprofit organizations (including Beyond Pesticides) filed a citizen petition with the U.S. Environmental Protection Agency (EPA) that asks the agency to close a gaping — and well exploited — regulatory loophole by revoking a 1984 regulation that waived efficacy data requirements in pesticide evaluations. This means that EPA has, for 39 years, registered pesticides without demonstrated proof of efficacy and benefits. The petition is aimed primarily at the widespread use of neonicotinoid insecticides (neonics), which are so harmful to hundreds of species — and to bees, other pollinators, and birds, in particular — that many advocates have insisted they should be banned altogether. Beyond Pesticides has advocated for a neonics ban because of their extensive harms to pollinators, multiple other organisms (including humans), ecosystems, and natural resources. The Center for Food Safety, Pesticide Action Network North America, Center for Biological Diversity, Beyond Pesticides, and other advocates have filed lawsuits in recent years to get EPA to act protectively on neonics and other pesticides. The coalition of groups in the subject case seeks to rein in a plethora of harmful impacts of neonics, given EPA’s overall lack of protective action. (For […]

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02
Mar

Pesticide Exposure and the Link to Irritable Bowel Syndrome (IBS)

(Beyond Pesticides, March 2, 2023) Populations experiencing higher levels of environmental pollutant exposure, specifically pesticides, also experience a higher rate of irritable bowel syndrome (IBS), according to a study published in Environmental Toxicology and Pharmacology. IBS is a gastrointestinal disorder that causes abdominal pain or discomfort and changes in bowel behaviors. IBS affects 25 to 45 million individuals in the U.S., mostly female (two-thirds). Additionally, a quarter to half of all gastrointestinal-related visits are for IBS symptoms. Despite the unknown etiology of IBS, ample evidence demonstrates environmental contaminants, like pesticides, negatively affect the gut microbiota, causing a microorganism imbalance and resulting in inflammation associated with IBS. The gut, also known as the “second brain,” shares similar structural and chemical parallels to the brain. The microbiota in the gut plays a crucial role in lifelong digestion, immune and central nervous system regulation, as well as other bodily functions. Although studies show how chemical exposures affect overall human health, a growing body of peer-reviewed scientific literature is now questioning how these toxic chemicals influence gut health and the subsequent occurrence of diseases. The study notes, “These findings may help to understand the relationship between pesticide exposure and IBS; however, more epidemiological and experimental research is needed to understand […]

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22
Feb

Neonicotinoids Combined with Other Pesticides Elevate Hazards to Honey Bee

(Beyond Pesticides, February 22, 2023) Combining neonicotinoid insecticides with other commonly used pesticides can result in synergistic effects on honey bees, increasing toxicity more than any individual chemical could, according to research published in Scientific Reports earlier this month. The data highlight the grave inadequacy of the U.S. Environmental Protection Agency’s (EPA) process for evaluating pesticide risks. Under current regulations, EPA requires chemical manufacturers to submit data only on singular active ingredients. Yet, pesticide products may be packaged or ‘tank mixed’ with other, equally toxic pesticides without any obligation to determine the toxicity of the material that is actually being applied. Independent research is left to fill in these gaps, and the data increasingly shows that toxicity with pesticide mixtures amounts to a roll of the dice: sometimes combinations are less toxic, sometimes their toxicities are merely additive. But more often than not, pesticide mixtures result in synergistic effects that make the product significantly more toxic than either individual chemical alone. To understand how pesticide combinations are harming pollinators, scientists began with baseline data on the individual toxicity range  that common pesticides pose to honey bee colonies. Research was conducted on honey bees reared in the Stoneville Wildlife Management Area […]

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16
Feb

More Dramatic Insect Decline Confirms Inadequate Action on Pending Biodiversity Collapse

(Beyond Pesticides, February 15, 2023) Areas designated to protect insects fail to do so for over 75 percent of global species, according to a study, “Three-quarters of insect species are insufficiently represented by protected areas,” published in the online journal One Earth. Protected Areas (PAs) act as a safeguard for biodiversity. However, PAs in North America, Eastern Europe, Southeast Asia, and Australia do not meet the minimum coverage requirements to safeguard global insect species assessed in the study. PAs are discussed in the 2020 Nature article, “Area-based conservation in the twenty-first century,” in which the authors state that, in view of the global biodiversity crisis, national governments must do much more to increase protected areas with “coverage across different elements of biodiversity (ecoregions, 12,056 threatened species, ‘Key Biodiversity Areas’ and wilderness areas) and ecosystem services (productive fisheries, and carbon services on land and seas).” The authors write, citing the UN Convention on Biological Diversity (to which the United States is not a signatory), “To be more successful after 2020, area-based conservation must contribute more effectively to meeting global biodiversity goals—ranging from preventing extinctions to retaining the most-intact ecosystems—and must better collaborate with the many Indigenous peoples, community groups and private initiatives […]

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14
Feb

Harming Wildlife, Pesticides in Waterways Run into the Great Lakes Year-Round

(Beyond Pesticides, February 14, 2023) The waterways that flow into the Great Lakes are experiencing year-round pesticide contamination that exceeds benchmarks meant to protect aquatic life, according to research published in Environmental Toxicology and Chemistry by scientists at the U.S. Geological Survey (USGS). “What you use makes it into the water,” study coauthor Sam Oliver, PhD, told the Milwaukee Journal Sentinel. These data buttress growing calls from pesticide reform advocates that new laws are needed to protect the nation’s increasingly threatened waters. USGS scientists conducted their analysis on 16 tributaries that feed into the Great Lakes, including sites that correspond to urban, agricultural, and undeveloped land. Samples were taken at locations closest to the lake the tributary flowed into over a period of roughly one year from October 2015 to September 2016. Each sample was tested for 231 pesticides and their breakdown products. Researchers used aquatic life benchmarks set by the U.S. Environmental Protection Agency (EPA), and created a relative hazard index (RHI) for the study to evaluate whether specific sites should be prioritized for further protections.   Across every sampled tributary, pesticides were found. Accordingly, 96% (190 out of 198) of samples taken contained pesticides or their breakdown products. […]

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02
Feb

Study on National Pollinator Declines Blames Pesticides, Pests, and Extreme Weather

(Beyond Pesticides, February 1, 2023) Honey bee declines in the United States are “primarily related” to pesticide exposure, parasitic mites, and extreme weather conditions, research published by Penn State scientists have determined. Publishing the results in Scientific Reports, the researchers aim to provide a national overview of the range of factors harming bee colonies. “Some previous studies have explored several potential stressors related to colony loss in a detailed way but are limited to narrow, regional areas,” said study co-author Luca Insolia, PhD. “The one study that we know of at the national level in the United States explored only a single potential stressor. For this study, we integrated many large datasets at different spatial and temporal resolutions and used new, sophisticated statistical methods to assess several potential stressors associated with colony collapse across the U.S.” The results reinforce calls from bee health advocates in the U.S. and around the world: eliminate toxic pesticide use, the lowest hanging fruit contributing to pollinator declines. In order to create a more comprehensive national overview, geographers, entomologists, and statisticians all participated in the study, reviewing publicly available data on colony health, land use, weather, and other environmental factors over a five-year period from […]

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25
Jan

Western Bumblebee Declines a Result of Pesticides and Climate Change, No End in Sight

(Beyond Pesticides, January 25, 2023) Populations of the western bumblebee are in free fall, with 57% declines across the species’ historical range, finds new research led by scientists at the U.S. Geological Survey. These data are in line with trends for other once common bumblebees in the United States, like the rusty patched and American, of which the former is now listed as endangered and the latter is under consideration. Most critically, the study authors did not simply generalize the most likely and common reasons, but instead establish the contribution that pesticide use, climate change, and land use changes have on western bumblebee declines. As the study shows, both the drivers and solutions to pollinators declines are in human hands, necessitating a broad rethinking of the nation’s approach to energy use and food production. The western bumblebee has been under considerable stress for decades. In the 1990s, there were attempts to commercialize the species as a greenhouse pollinator. This industrial approach resulted in the spread of a fungal disease called Vairimorpha bombi, and captive rearing of the western bumblebee was eventually halted and deemed untenable. These dislocations resulted in local declines of the species in certain regions of U.S. Northwest […]

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19
Jan

Neonicotinoid Insecticides Adversely Affect Nervous System Health, According to Study

(Beyond Pesticides, January 19, 2023) Research published in Environmental Health Perspectives finds the presence of nine various neonicotinoids (neonics) and six neonic metabolites within human cerebrospinal fluid (CSF). CSF is an essential part of the central nervous system (CNS), especially for CNS development. Specific chemical biomarkers (measurable indicators of biological state), like pesticides, found in CSF are useful for diagnosing and evaluating numerous neurological diseases. The nervous system is an integral part of the human body and includes the brain, spinal cord, a vast network of nerves and neurons, all of which are responsible for many of our bodily functions—from sensed to movement. However, mounting evidence over the past years shows that chronic exposure to sublethal (low) levels of pesticides can cause neurotoxic effects or exacerbate preexisting chemical damage to the nervous system. The impacts of pesticides on the nervous system, including the brain, are hazardous, especially for chronically exposed individuals (e.g., farmworkers) or during critical windows of vulnerability and development (e.g., childhood, pregnancy). Researchers identify the role agricultural chemicals play in CNS impacts causing neurological diseases, like amyotrophic lateral sclerosis (ALS) and Parkinson’s disease, dementia-like diseases such as Alzheimer’s, and other effects on cognitive function. Over 300 environmental contaminants and their byproducts, including pesticides, are chemicals commonly present in human blood […]

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18
Jan

Growing Sunflowers Near Honey Bee Colonies Helps Reduce Mite Problems

(Beyond Pesticides, January 18, 2023) Sunflower plantings have the potential to significantly reduce mite infestations in nearby honey bee colonies, according to research recently published in the Journal of Economic Entomology by researchers with the U.S. Department of Agriculture (USDA). With pollinators under threat from pesticides, climate change, loss of habitat, and the spread of disease and parasites, sustainable methods that address multiple factors at once are needed. This study points to a way to address destructive Varroa mites, while reducing the need for in-hive use of miticides that can likewise harm colony health. “If sunflowers are as big of a factor in mite infestation as indicated by our landscape-level correlations … having a few more acres of sunflower within a mile or two of apiaries could bring colonies below the infestation levels that require treatment of hives with acaracides (i.e., mite-controlling chemicals),” said lead author Evan Palmer-Young, PhD, of USDA’s Bee Research Lab in Beltsville, MD. Prior research has pointed to sunflower pollen as a potential benefit for a number of common bee diseases and infestations, including the Varroa mite, the fungal parasites Nosema spp, and various viruses. Investigations went through four different experiments aimed at characterizing any potential […]

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