Archive for the 'Pollinators' Category
22
Dec
Thank you for your support and collaboration. Onward in 2018! (Beyond Pesticides, December 22, 2017)  We deeply appreciate your donation to our program in 2017 and it is easy to donate HERE. Year in Review At Beyond Pesticides, we collaborate with organizations and advocate across the country to get our message out on the threat that pesticides pose to human health and the environment. We support local action to stop this threat. And, we assist communities nationwide with the adoption of organic management practices that are more effective and protective than chemical-intensive practices. The partnerships that have been established are, at a more rapid pace, resulting in the adoption of land management practices that are supported by Beyond Pesticidesâ strategic vision for a world free of toxic pesticides. Information for Action Beyond Pesticides expanded its role in the forefront of pesticide and organic advocacy with our Action of Week  and Q&A of the Week, in addition to our Daily News, which identifies and delves into key science, policy, and actions that inform local action. The Summer issue of our journal, Pesticides and You, highlighted David Montgomery’s talk at Beyond Pesticidesâ National Forum on the importance of soil microbiota and gut microbiome to healthy ecosystems […]
Posted in Agriculture, Alternatives/Organics, Chlorpyrifos, Glyphosate, Lawns/Landscapes, Litigation, Microbiata, Microbiome, Monsanto, neonicotinoids, Pesticide Regulation, Take Action, Uncategorized | No Comments »
14
Dec
(Beyond Pesticides, December 14, 2017) Tests of waterways in the United Kingdom (UK) reveal rivers contaminated with neonicotinoids, the class of chemicals highly toxic to bees and aquatic invertebrates. And now, although neonicotinoids were banned from use on certain crops in the European Union (EU) in 2013, an EU vote to extend the ban has been delayed. The test results raise concerns over neonicotinoids’ impacts on waterways, especially to fish and birds. Under a new EU mandate -Water Framework Directive âWatch Listâ initiative – the UK was required to monitor for all five commonly used neonicotinoids: imidacloprid, clothianidin, thiamethoxam, acetamiprid and thiacloprid. Twenty-three sites were sampled in 2016, 16 in England, four in Scotland, three in Wales and three in Northern Ireland. This is the first systematic testing of neonicotinoids in rivers in Britain. According to the results, half the rivers tested in England had either chronic or acute levels of contamination. Of the 23 rivers tested across Britain, all but six contain neonicotinoids. Eight rivers in England exceed recommended chronic pollution limits, and two are acutely polluted. Neonicotinoids are not only highly toxic to bees but also highly toxic to aquatic insects, which are a vital food source to […]
Posted in contamination, neonicotinoids, Persistence, Pesticide Residues, Water | No Comments »
11
Dec
(Beyond Pesticides, December 11, 2017) Tell the Natural Resources Conservation Service (NRCS) to substantially increase the amount of funding spent on the conservation of monarch butterflies and the restoration of their habitat, and to ensure that restored habitat is not poisoned with hazardous pesticides. Although the agency has taken some steps to protect monarchs âincluding the implementation of the Monarch Butterfly Habitat Development Project and support for the Monarch Butterfly Conservation Fundâ last yearâs NRCS expenditure of $4 million was insufficient to prevent the monarchsâ decline, and could not even begin stemming the loss of milkweed habitat. Restoring the monarch butterfly and its habitat will require a substantial contribution from the agricultural sector and strong leadership from the NRCS. Agricultural lands encompass 77% of all prospective monarch habitat, and thus are indispensable to reaching these goals. Monarch populations have fallen more than 80 percent over the last 20 years, and it is estimated that there is a 60 percent chance the multigenerational migration of these butterflies would completely collapse in the next 20 years. Milkweed, the only forage for monarch caterpillars, has decreased by 21 percent, especially in the Midwest, where agricultural fields and pesticide use have expanded. Scientists estimate […]
Posted in Biodiversity, Habitat Protection, Pollinators, Uncategorized, US Department of Agriculture (USDA), Wildlife/Endangered Sp. | No Comments »
06
Dec
(Beyond Pesticides, December 6, 2017) Last week over 100 conservation and environmental groups urged the federal government to increase funding to protect and conserve monarch butterflies. These iconic butterflies, native to North America, have seen drastic declines in their populations. Surveys report over 80 percent reductions in populations over the last 20 years. Pesticide use, habitat loss, and climate change have all been identified as stressors to these butterflies. The groups, led by the Center for Biological Diversity, Defenders of Wildlife, and the Humane Society, sent a letter to the U.S. Department of Agriculture (USDA) to do more to help the imperiled butterfly. The letter requests the agency increase the allotment of conservation funds from $4 million- spent last year- to $100 million. The increase in funds is needed for efforts to increase milkweed habitat. In contrast, the government spent over $500 million on sage grouse initiatives to prevent that animalâs listing under the Endangered Species Act (ESA), even though the Trump Administration is seeking to overturn these initiatives. Currently, the agency has taken some steps to protect monarchs. These include the implementation of the Monarch Butterfly Habitat Development Project and support of the Monarch Butterfly Conservation Fund. But, according […]
Posted in Pollinators, US Department of Agriculture (USDA), Wildlife/Endangered Sp. | No Comments »
05
Dec
(Beyond Pesticides, December 5, 2017) Fungicides are likely playing an important role in the decline of North American bumblebee populations, according to new research published by a team at Cornell University. While overwhelming data continue to indicate that insecticides, particularly the neonicotinoid class of chemicals, are the leading factor in overall pollinator declines, Cornell scientists discovered that fungicides, in particular the chemical chlorothalonil, are likely compounding risk and toxicity for U.S. bumblebee species. As new studies continue to expand the chemical culprits in pollinator declines, calls for a wholesale change in agricultural practices toward more sustainable organic production are reinforced. Cornell researchers began their investigation by focusing on what land use factors had the most impact on eight bumblebee species, many of which have been declining in the U.S. Bumblebee species were sampled at nearly 300 sites in 40 states during the summer months, and at each of the sampling sites, landscape variables were characterized and quantified for land use (urban v rural), habitat (high vs low latitude), and pesticide (insecticide, fungicide, herbicide) usage. The strongest indicator of declining range within the selected bumblebee species was found to be overall fungicide use, with those in the northern U.S. undergoing the […]
Posted in Fungicides, Pollinators, Uncategorized | No Comments »
01
Dec
(Beyond Pesticides, December 1, 2017) Ichneumonid wasps (family Ichneumonidae), are a widely distributed parasitoid wasp family within the order Hymenoptera. The name âichneumonidâ comes from Greek words meaning âtrackerâ and âfootprint.â And females do indeed hunt for suitable âhostsâ by first identifying the organismâs food source. Once a suitable host is found, females deposit eggs onto the unsuspecting insect larvae where, within ten days to several weeks, the Ichneumonid larva kills the host by feeding on its body fluids before it emerges. They are also known as âscorpion waspsâ for the extreme length and curving motion of their segmented abdomens. Note: both adult males and females are stingless, and feed on nectar. The discovery of Ichneumonidae was so troubling to many that, in 1860, Charles Darwin wrote a letter to the American naturalist Asa Gray, saying: âI own that I [should wish to] see as plainly as others doâŚevidence of design and beneficence on all sides of usâŚI cannot persuade myself that a beneficent and omnipotent God would have designedly created the Ichneumonidae with the express intention of their feeding within the living bodies of Caterpillars, or that a cat should play with mice.â The parasitic behavior of Ichneumon wasps was […]
Posted in Beneficials, Biodiversity, Biological Control, Pollinators, Uncategorized | No Comments »
30
Nov
(Beyond Pesticides, November 30, 2017)Â A French court suspended the license of two pesticide products citing their toxicity to bees. The products, Closer and Transform, both contain the active ingredient, sulfoxaflor, which is highly toxic to bees. The ruling overturned the decision by Franceâs health and environment agency, ANSES, to allow the use of the sulfoxaflor products. Sulfoxaflor use was also challenged in the U.S. by beekeepers concerned about its impact on already declining bee populations. Sulfoxaflor is a relatively new active ingredient whose mode of action is similar to that of neonicotinoid pesticides. Even though it has not been classified as a neonicotinoid, it elicits similar neurological responses in honey bees, with many believing that sulfoxaflor is a new generation of neonicotinoid. Its initial 2013 Â U.S. registration was challenged by beekeepers and subsequently vacated by the Ninth Circuit Court of Appeals due to overwhelming risks to bees and the U.S. Environmental Protection Agencyâs (EPA) inadequate review of the data. The court concluded that EPA violated federal law when it approved sulfoxaflor without reliable studies regarding the impact that the insecticide may have on honey bee colonies. By vacating EPAâs unconditional registration of the chemical, sulfoxaflor could not be used […]
Posted in neonicotinoids, Pollinators, Sulfoxaflor | No Comments »
28
Nov
(Beyond Pesticides, November 28, 2017) Bumblebees exposed to field-realistic levels of neonicotinoid insecticides have problems with âbuzz pollinationâ that results in reduced pollen collection, according to new research published in Scientific Reports. This is the latest science to tease out the complex ways in which neonicotinoids interfere with these important pollinators, providing yet another reason to eliminate these highly toxic, systemic insecticides from the environment. Flowers that bumblebees pollinate require the insects to emit soundwaves, or âsonicateâ to release their pollen, and bumblebees must perfect their techniques over time in order to maximize the pollen they are able to collect. Researchers tested the effect of neonicotinoids on bumblebees’ sonication abilities by exposing them to field realistic doses of the insecticide thiamethoxam at rates of 2 parts per billion (ppb) and 10 ppb, and observing their ability to successfully collect pollen. A control group that never came in contact with thiamethoxam was also used to compare the progress of the exposed group. Lead author of the study, Penelope Whitehorn, PhD, indicated, âWe found that control bees, who were not exposed to the pesticide, improved their pollen collection as they gained experience, which we interpreted as an ability to learn to buzz […]
Posted in Bayer, Beneficials, neonicotinoids, Pollinators, Syngenta, Thiamethoxam, Uncategorized | No Comments »
04
Oct
(Beyond Pesticides, October 4, 2017) Beetles in the family Cantharidae are known as soldier beetles, a name that is based on the resemblance of the elyra (wing cover) to certain military uniforms. They superficially resemble fireflies (family Lampyridae), but lack light-emitting organs and the covering obscuring the head of fireflies. Like fireflies, soldier beetles are distasteful to most predators. Range There are 16 genera containing 455 species of soldier beetles native to North America, including Chauliognathus marginatus, which is commonly seen on goldenrod in late summer and early fall. Worldwide, there are about 5,100 species in 160 genera, widely distributed in all but polar regions. Most frequently active in summer and early fall, adults can be found on various flowers including sunflowers, tansy, zinnia, marigold, goldenrod, and coneflower. Females lay eggs in clusters in the soil. Larvae are mostly carnivorous, feeding on soil insects. They live through the winter under loose soil, and become active during spring. Larvae normally pupate in early summer and adults first emerge in mid-summer. Physiology The soldier beetleâs body is around ½ to ž inch long. Adults are black or brown, usually with red to yellow markings, an âaposematicâ signal to predators, warning of an […]
Posted in Beneficials, Pollinators, Uncategorized | No Comments »
02
Oct
(Beyond Pesticides, October 2, 2017) Elementary school students at New York Cityâs PS 290 are taking a stand against toxic pesticide use in New York City parks, supporting Intro 800, a bill introduced by Manhattan Councilmember Ben Kallos. âWeâre going to make a great big fuss,â the children in Mrs. Paula Rogivinâs kindergarten class chanted in a skit performed in front of the NYC Committee on Health this week. Since New York City (NYC) passed Local Law 37, Pesticide Use by City Agencies, in 2005 to stop toxic pesticide use on City owned and leased land, it turns out that some pesticides known to be hazardous were not captured by the law. As a result, the proposed legislation is intended to strengthen restrictions to ensure more comprehensive restrictions that limit pesticides to biological pesticides. Local Law 37 restricts the use of acutely toxic and carcinogenic pesticides as defined by the U.S. Environmental Protection Agency (EPA), and developmental toxicants as defined by the state of California under Prop 65. Exemptions allowing the use of these pesticides are granted based on a waiver review process that requires evidence that the chemicals are necessary to protect public health. Otherwise, City agencies are encouraged […]
Posted in Children, Glyphosate, Lawns/Landscapes, New York, Uncategorized | No Comments »
13
Sep
(Beyond Pesticides, September 13, 2017) According to a study published in the journal Biological Conservation, Monarch butterfly populations from western North America have declined far more dramatically than was previously known and face a greater risk of extinction â 86 percent in the next 50 years. The researchers do not know the exact cause but identify habitat loss and widespread pesticide use as likely culprits. Migratory monarchs in the west could disappear in the next few decades if steps are not taken to recover the population, the studyâs lead author, Cheryl Schultz, PhD, an associate professor at Washington State University Vancouver states. “Western monarchs are faring worse than their eastern counterparts. In the 1980s, 10 million monarchs spent the winter in coastal California. Today there are barely 300,000,” she said. Western monarchs (Danaus plexippus) have a spectacular migration. They overwinter in forested groves along coastal California, then lay their eggs on milkweed and drink nectar from flowers in the spring in Arizona, California, Nevada, Oregon, Washington, Idaho and Utah. They then return to their coastal overwintering sites in the fall. Eastern monarch, whose numbers are also in decline, travel instead across the border into Mexico to wait out the winter. The researchers from […]
Posted in California, Habitat Protection, Pollinators, Wildlife/Endangered Sp. | No Comments »
15
Aug
(Beyond Pesticides, August 15, 2017)Â With increasing scientific understanding about the importance of beneficial bacteria in soil and the human body âmicrobiota in the soil and microbiome in the human gut, the summer 2017 issue of Beyond Pesticidesâ journal, Pesticides and You, publishes two critical articles to advance the importance of community discussion and action on organic and sustainable practices. The lead article, Sustaining Life: From Soil Microbiota to Gut Microbiome by professor of geomorphology (University of Washington) and author David Montgomery, PhD, contains excerpts from Dr. Montgomeryâs talk to Beyond Pesticidesâ 35th National Pesticide Forum, documenting the importance of soil microbiota to healthy soil, resilient plants, and sustainability. His piece explains the essentiality of bacteria in the human gut to a healthy life, with profound implications for both agriculture and medicine. Dr. Montgomery points to a âbonafide scientific revolutionâ in recognizing the failure to nurture the ecosystem in nature and the human body and the associated adverse health effects resulting from pesticide use â21st century diseases, including asthma, autism, bacterial vaginosis, cardiovascular disease, cancer, Crohnâs disease, depression, inflammatory bowel disease, leaky gut syndrome, multiple sclerosis, obesity, Type 1 and 2 diabetes, and Parkinsonâs. Also in the Journal, Monsantoâs Roundup (Glyphosate) […]
Posted in Agriculture, Glyphosate, Lawns/Landscapes, Microbiata, Microbiome, Monsanto, Uncategorized | No Comments »
04
Aug
(Beyond Pesticides, August 3, 2017) A Circuit Court for the state of Maryland  on Thursday struck down key components of the landmark Healthy Lawns Act pesticide ordinance passed in Montgomery County, Maryland in 2015. The courtâs decision, issued by Judge Terrence McGann, eliminates pesticide use restrictions on private property, but does not touch provisions limiting toxic pesticides used on public, county owned land. Grassroots advocates who supported passage of the Healthy Lawns Act to protect children, families and the environment are dismayed by the courtâs ruling, but nevertheless vow to keep up the fight for protections from hazardous pesticides used in their community. âThe court should have recognized that, in restricting lawn pesticides throughout its jurisdiction, Montgomery County is exercising a local democratic principle under Maryland and federal law to ensure the safety of the community, including children, pets, and the environment, from a known hazard not adequately regulated by the U.S. Environmental Protection Agency or the state,â said Jay Feldman, executive director of Beyond Pesticides. âAfter extensive hearings and study, the county council understands that toxic chemicals are dangerous and not needed to have beautiful lawns and landscapes,â Mr. Feldman said. By passing the Healthy Lawns Act, the Montgomery […]
Posted in Lawns/Landscapes, Litigation, Maryland, Preemption, Uncategorized | No Comments »
03
Jul
(Beyond Pesticides, July 3, 2017) A two-year long study conducted at 33 sites in multiple European countries to assess the effects of neonicotinoid (neonics) insecticides on three bee species in real-world environmental conditions confirms that these pesticides have a deleterious effect on bee survival. The study, the largest of its kind, explored the role of the agricultural use of neonics as seed coatings on bee health and fnds that the pesticides are persistent in the environment, contaminating pollen and nectar that bees forage, reducing colony fitness. The results of the study support ongoing calls for a ban on neonics, including a European Union (EU) wide ban proposed earlier this year. The new research, published in the prestigious peer-review journal Science, which was in part funded by Bayer and Syngenta – manufacturers of the pesticides, encompassed large field experiments to assess the effects of neonic-treated crops on various bee species âhoney bees (Apis mellifera), bumble bees (Bombus terrestris), and solitary bees (Osmia bicornis)â across three European countries (Germany, Hungary and the United Kingdom). The study examines the impacts of clothianidin and thiamethoxam, the neonics frequently used as seed coatings of oil seed rape (canola), and used in the fields under study. […]
Posted in Agriculture, Clothianidin, neonicotinoids, Pollinators, Thiamethoxam | No Comments »
23
Jun
(Beyond Pesticides, June 23, 2017) In a packed hearing room, the Portland, Maine City Council Sustainability and Transportation Committee heard community members testify in support of an ordinance to restrict pesticides on playing fields, parks, and private lawns for nearly three hours on Wednesday night. The hearing focused on a draft pesticide policy that was recently released by the Pesticide and Fertilizer Task Force, set up by Mayor Ethan Strimling. A range of community members testified, including doctors, parents, organic land managers, an organic products retailer, and public health advocates. Beyond Pesticides’ executive director, Jay Feldman, was at the hearing to support the adoption of ordinance language similar to that adopted by neighbor city South Portland in September 2016. In reaction to the Task Force proposal, which advances an undefined integrated pest management (IPM) approach that allows the use of “least toxic” pesticides, Mr. Feldman testified, “An ordinance requires specificity if it is to accomplish the goals that the community embraces âsafe playing fields, parks, playgrounds, and a community that does not allow the poisoning of soil, air, and water.” The lack of specificity in the draft contrasts with the South Portland ordinance, which adopts a list of allowed materials and envisions […]
Posted in Lawns/Landscapes, Maine, State/Local, Take Action | No Comments »
31
May
(Beyond Pesticides, May 31, 2017) Neonicotinoid-treated corn seeds produce lethal and sub-lethal exposure risks to honey bees and do not increase yields for farmers, according to a recent study by researchers at Purdue University. The study, published in the Journal of Applied Ecology, Planting of neonicotinoid-treated maize poses risks for honey bees and other non-target organisms over a wide area without consistent crop yield benefit, examines neonicotinoid (neonic) dust drift during corn planting in Indiana and the likelihood of honey bee exposure during foraging. The study results and subsequent analysis using public data of apiary locations indicate that over 94% of honey bee foragers in Indiana are at risk of exposure to varied levels of neonics, including lethal levels, during corn sowing. Researchers also performed a three-year field assessment of the purported benefits from neonic seed coatings for pest management, finding that there is no evidence of increased corn yields compared to sites with no neonic seed treatments. According to the lead author of the study, Christian Krupke, Ph.D., in an interview with Purdue Extension, âThere was a misconception that any bees not living near corn were likely to be fine. But thatâs not true, and itâs clear that these […]
Posted in Agriculture, neonicotinoids, Pesticide Residues, Pollinators | No Comments »
30
May
(Beyond Pesticides, May 30, 2017) U.S. beekeepers lost an unsustainable 33% of their hives over the past year, according to new data from the Bee Informed Partnership. While this yearâs numbers are lower than those recorded last year, which found nearly half of U.S. honey bee colonies died off, there is no cause for celebration. Declines are still well above acceptable loss rates of 15% or less, and the data indicate a continuing trend of substantial losses during the summer months. Without real changes to U.S. policy that effectively eliminate pollinator exposure to highly toxic and persistent pesticides such as neonicotinoids, there is little likelihood that these unsustainable losses will subside. Despite the overall dour projections for U.S. pollinators, Bayer, the major manufacturer of neonicotinoid pesticides implicated in pollinator declines, attempts to spin the news in its favor. Last week, the company put out a press release titled âWelcome News for Honey Bees,â and went on the praise itself for its efforts to protect pollinators. The chemical industry continues to use public relations tactics, in a similar vein to those previously employed by the tobacco industry, to downplay the nature of the crisis, spin the science, and blame everything but […]
Posted in Chemicals, neonicotinoids, Pesticide Regulation, Pollinators | No Comments »
25
May
(Beyond Pesticides, May 25, 2017) Four parks in Maui, Hawaii, have kicked off a year-long pesticide-free pilot program to transition to organic management. A series of training events in the county over the past few weeks focused on soil-based approaches to land management, a more effective solution than solely switching from synthetic to organic pesticides. Last Wednesday, Beyond Pesticidesâ executive director, Jay Feldman, and Chip Osborne, president of Osborne Organics, taught training sessions with county Parks and Recreation staff, âdiscussing lawn care that relies less on outside products and aims to feed the soil, not just the plant.â Beyond Pesticides worked to support the pesticide-free parks movement in Maui by sponsoring these training sessions for Maui County Parks, Department of Transportation, Maui public schools, several local resorts, and golf course management groups. Beyond Pesticides is working with Maui County to provide guidance on transitioning its parks to organic practices. Analysis of soil samples at each site has been conducted, which will provide a baseline to implement cultural changes to improve the biological health of the soil, making it more resistant to weed and insect pressures. The next step includes creation of a report and action plan for each county park by Beyond Pesticides and Osborne […]
Posted in Alternatives/Organics, Hawaii, Lawns/Landscapes, State/Local, Take Action | No Comments »
09
May
(Beyond Pesticides, May 9, 2017) Last month, San Juan Capistrano (SJC) became the latest community in Orange County, CA to pass an organic landscaping policy for city parks and open spaces. The cityâs move follows the passage of an organic land care policy in nearby Irvine, CA last year, and like Irvine, was brought forward by a strong contingent of local advocates, health practitioners, and city officials working together to safeguard public health and the environment. By a vote of 4-0-1, San Juan Capistranoâs City Council put the community on the cutting edge of local changes to pesticide use that are taking place across the country. SJCâs policy is the result of persistent pressure and engagement by community group Non-Toxic San Juan Capistrano with city officials. A change.org petition hosted by the group, which received over 300 signatures, detailed the discussions and responses the group received from local leaders. At the time the City Council took up the issue at a mid-April meeting, Mayor Kerry Ferguson made a strong statement indicating that, âChemical pesticides and herbicides have been proven to be toxic to children, pets, and the general public.â Mayor Ferguson further said, âWhile [chemical pesticide] use is somewhat limited […]
Posted in Alternatives/Organics, California, Endocrine Disruption, Integrated and Organic Pest Management, Lawns/Landscapes, Pesticide Regulation, State/Local | No Comments »
05
May
(Beyond Pesticides, May 5, 2017) Walmart and True Value have announced that beginning on Wednesday they will be phasing out neonicotinoid (neonic) pesticides from all retail supply chains. These announcements follow numerous scientific studies that have consistently implicated neonics in the decline of honey bees and other wild pollinators. The decision stems from an ongoing consumer and environmental campaigns urging retailers to stop selling plants treated with neonics and to remove products containing them from store shelves. Neonicotinoids are systemic pesticides, or whole plant poisons, taken up by a plantâs vascular system and expressed in the pollen, nectar, and dew drops. They are also highly persistent, with research showing the potential for certain chemicals in the class, such as clothianidin, to have a half-life of up to 15 years. Studies show significant cause for concern when it comes to pollinators and exposure to these pesticides. Although little substantive action on these chemicals has been taken by the U.S. Environmental Protection Agency (EPA), the agency agreed that the pesticides do harm bees, though only in the limited situations and constrained scenarios that were actually investigated by EPA. The European Commission (EC) has proposed a complete ban of agricultural uses of the widely used […]
Posted in Announcements, Corporations, neonicotinoids, Pollinators, Uncategorized | No Comments »
04
May
(Beyond Pesticides, May 4, 2017) This week, a study released in the Proceedings of the Royal Society found evidence of reduced egg development and impact on feeding behavior in wild bumblebee queens after exposure to the neonicotinoid thiamethoxam. The study, led by researchers from the University of London, investigates the impact of field-relevant levels of thiamethoxam exposure on four wild species of bumblebee queens. In a BBC News article, lead author, Dr. Gemma Barron, Ph.D., stated, âWe consistently found that neonicotinoid exposure, at levels mimicking exposure that queens could experience in agricultural landscapes, resulted in reduced ovary development in queens of all four species we tested. These impacts are likely to reduce the success of bumblebee queens in the spring, with knock-on effects for bee populations later in the year.” The study focuses on sublethal effects of neonicotinoids, as wild bumblebees are more likely to be exposed to low doses of these chemicals, rather than higher lethal levels. The queen bumblebees of four species were collected in the spring of 2014, with a total of 506 being used in the initial study groups. These queens were divided into three treatment groups and exposed to either a high level, low level, or no […]
Posted in neonicotinoids, Pollinators, Thiamethoxam, Wildlife/Endangered Sp. | No Comments »
03
May
(Beyond Pesticides, May 3, 2017) Last week, researchers at the University of California San Diego revealed the first ever link between the use of neonicotinoid pesticides and the ability of bees to fly. Published in Scientific Reports, the study, âA common neonicotinoid pesticide, thiamethoxam, impairs honey bee flight ability,â builds on previous findings that neonicotinoid use interferes with beesâ ability to navigate, and concludes that exposure to thiamethoxam affects honey bee flight patterns as well as their physical ability to fly in ways that may be detrimental to their survival. The study is the latest in a growing body of science linking pesticide use to honey bee declines, raising concerns about overall honey bee health and longevity in the face of continued neonicotinoid use. According to the study, both acute and chronic exposure to thiamethoxam revealed significant alterations of the ability of bees to fly -affecting flight distances, duration of flights, and flight velocity. Researchers noted significant differences in bee behavior based on short versus long term exposure, which they summarized as having an “excitatory short-term effect and a depressive longer-term effectâ on the beesâ ability to fly. This means that when bees were exposed to thiamethoxam for a short, […]
Posted in Pollinators, Thiamethoxam, Uncategorized | No Comments »
27
Apr
(Beyond Pesticides, April 27, 2017) Nine organizations filed an Amicus brief this week in support of a 2015 landmark Montgomery County, Maryland ordinance that restricts the use of toxic pesticides on public and private land within its jurisdiction. The law, intended to protect children, pets, wildlife, and the wider environment from the hazards of lawn and landscape pesticide use, is facing a legal challenge filed in November last year by the pesticide industry group Responsible Industry for a Sound Environment (RISE). The plaintiffs, which include local chemical lawn care companies and a few individuals, allege that the local ordinance is preempted by state law, despite the fact that Maryland is one of  seven states  that has not explicitly taken away (or preempted) local authority to restrict pesticides more stringently than the state. The law at issue, 52-14 (the Healthy Lawns Act), which restricts the cosmetic lawn care use of toxic pesticides on public and private land, protects over one million people, the largest number to be covered by any local jurisdiction to date. Passing the Montgomery County Council by a vote of 6-3, the bill allows time for transition, training, and a public education program over several years. In limiting the pesticides […]
Posted in Alternatives/Organics, Children/Schools, Integrated and Organic Pest Management, Lawns/Landscapes, Maryland, Pesticide Regulation, State/Local | No Comments »