(Beyond Pesticides, October 29, 2013) Early-life exposure to the herbicide atrazine makes frogs more susceptible to death from chytrid (Batrachochytrium dendrobatidis), a fungal disease implicated in amphibian declines across the globe. The research, Early-life exposure to a herbicide has enduring effects on pathogen-induced mortality, published in the Proceedings of the Royal Society B and led by University of South Florida (USF) biologist Jason Rohr, Ph.D, provides critical information for scientists hoping to stem the global demise of amphibian populations. “Understanding how stressors cause enduring health effects is important because these stressors might then be avoided or mitigated during formative developmental stages to prevent lasting increases in disease susceptibility,” Dr. Rohr explains. Researchers exposed tadpoles to atrazine at levels found in the environment for a period of  six days during the animal’s development, in combination with exposure to chytrid fungus (linked to worldwide amphibian decline), resulted in increased mortality 46 days later. According to the study, “[E]arly-life exposure to atrazine altered growth and development, which resulted in exposure to chytrid at more susceptible developmental stages and sizes, and reduced tolerance of infection, elevating mortality risk at an equivalent fungal burden to frogs unexposed to atrazine. Moreover, there was no evidence of […]

(Beyond Pesticides, October 24, 2013) A team of scientists in Italy believe they have found the molecular mechanism through which neonicotinoid pesticides adversely impacts the immune system of honey bees. The team’s experiments suggest that exposure to neonicotinoids results in increased levels of a particular protein in bees that inhibits a key molecule involved in the immune response, making the insects more susceptible to attack by harmful viruses. Though previous studies have indicated that exposure to minute amount of neurotoxic pesticides like neonicotinoids severely impair the immune systems of bees, making them more susceptible to pathogens, the underlying mechanism has was not yet been fully  understood. The study, Neonicotinoid clothianidin adversely affects insect immunity and promotes replication of a viral pathogen in honey bees, is published in the Proceedings of the National Academy of Sciences of the United States of America (PNAS). This work is the latest of several studies to add weight to the urgency of repeated calls from U.S. beekeeper and environmental groups for the Environmental Protection Agency (EPA) to  suspend the use of neonicotinoid pesticides, as the European Commission recently decided this past April. Neonicotinoids, a class of insecticides that includes clothianidin and imidicloprid, are taken up […]

(Beyond Pesticides, October 21, 2013) A study conducted by Sussex University researchers has identified the garden plants most attractive to  pollinating insects. The study’s findings are important as pollinating insects are declining globally and are facing growing habitat losses. The study also gives vital scientific information to individuals and communities on plants that are most beneficial to pollinators. Although creating pollinator friendly habits is an important step to slowing pollinator population decline, environmental groups and activists are focused on addressing the underlying problem that leads to pollinator population loss: the continuous use of toxic pesticides. The study, Quantifying variation among garden plants in attractiveness to bees and other flower-visiting insects, published in Functional Ecology,  collected data over two summers by counting flower-visiting pollinators on 32 popular garden plant varieties to determine which varieties are more attractive to pollinators. The study found that the most attractive flowers are 100 times more attractive than the least attractive flowers. According to the study, the most attractive flowers are borage, lavender, marjoram, and open-flower dahlias. Majoram was the best all-round flower, attracting honey bees, bumble bees, other bees, hover flies, and butterflies. While information on pollinator friendly flowers is widely available, this study was […]

(Beyond Pesticides, October 10, 2013) A recent investigation into the death of thousands of bees last month in Minnesota revealed that fipronil, a widely used insecticide, was to blame. In mid-September, three colonies of bees in Minneapolis were found twitching and dying on the ground. Local apiarist Mark Lucas paints a grim picture of the poisoning event, which he witnessed, recalling that bees inside the hive came “spilling out of the hive as if they were drunk.” University of Minnesota Bee Lab, the University’s Bee Squad, and the Minnesota Department of Agriculture (MDA) carried out the  investigation, taking samples from hives to confirm pesticide poisoning. Indeed, MDA tests found that all three of the affected hives tested positive for the presence of fipronil. Although neonicotinoid pesticides such as clothianidin, thiamethoxam, and imidacloprid have been widely implicated in the phenomenon of colony collapse disorder (CCD), other pesticides are known to adversely affect honey bee health. Fipronil has also been heavily implicated in elevated bee toxicity and decline. Indeed, the European Union (EU) recently put forth a proposal to restrict the use of the pesticide in recognition of the high acute risks it poses to bees. The chemical is widely used for […]

(Beyond Pesticides, October 8, 2013) Stress brought about by chronic exposure to sublethal levels of neonicotinoid pesticides causes bee colony failure, according to a new study published in the journal Ecology Letters. Scientists at Royal Holloway University of London have determined that low-level exposure to the pesticide imidacloprid at levels bees encounter in the field causes subtle impacts on individual bees that eventually cause colonies to collapse. This breakthrough study underlines repeated U.S. beekeeper and environmental group calls  for the Environmental Protection Agency (EPA) to  suspend the use of neonicotinoid pesticides, as the European Commission recently decided this past April. Since 2006, honey bees and other pollinators in the U.S. and throughout the world have incurred ongoing and rapid population declines from hive abandonment and bee die-off in a phenomenon known as colony collapse disorder (CCD). Studies continue to link a class of systemic pesticides called neonicotinoids to the CCD phenomenon and pollinator decline in general. While scientists have cited multiple chemical and other factors that contribute to degrading bee health, until now no study has shown the internal mechanism within bee colonies that causes collapse. By focusing on chronic sublethal stressors, Royal Holloway researchers have addressed the complexities that […]

(Beyond Pesticides, October 4, 2013)  It was hoped that a  recent meeting in Florida between beekeepers and citrus growers could create stronger communication between both agricultural sectors. Beekeepers in Florida have begun to voice growing concerns over the increased use of insecticides on citrus trees where their bees are used as pollinators. Though this meeting worked to set up an important dialog between beekeepers and citrus growers, it focused predominantly on the effects of accidental exposure. This focus does not take into account the long-term residues these systemic insecticides can leave in the environment, contaminating nectar and pollen.     The recent September meeting that was organized by the Florida Agriculture Commissioner Adam Putman, a former U.S. congressman and citrus farmer, was meant to start a dialog between citrus growers and beekeepers. This dialog was viewed as necessary by Florida’s Department of Agriculture as beekeepers are worried over the increased use of insecticides in citrus groves. Recently, citrus farmers have increased their use of insecticides from several times a year to applications every month or greater to combat the invasive Asian citrus pysllids. Asian citrus pysllids can infect trees with a bacterium that causes citrus greening. Honey bees in Florida […]

(Beyond Pesticides, September 24, 2013) Last month a new report co-released by Beyond Pesticides, Friends of the Earth, and other allies revealed that the neonicotinoids (neonics), the pesticides implicated in global bee die-offs, may be lurking in our own gardens. The study showed that more than half of the “bee-friendly” plants sold at retailers like Home Depot and Lowe’s contained these “bee-killing” pesticides.Our coalition and nearly 200,000 people across the country have stepped-up to tell Home Depot and Lowe’s to stop selling these poisoned plants and off-the-shelf bee-killing pesticides. So far neither company has responded. We need to send a clear message to Lowe’s and Home Depot that it is not okay to further endanger our imperiled pollinators. With beekeepers reporting losses up to 90% last winter, consumers should be able to provide a true sanctuary for honey bees and other pollinators. Join us this week in a social media “swarm” on Facebook and Twitter to send Home Depot and Lowe’s an urgent demand:   “Stop selling bee-killing pesticides and poisoned ”˜bee-friendly’ plants!” I.   Copy and post this message on Home Depot and Lowe’s Facebook pages: Home Depot/Lowe’s: Stop selling bee-killing pesticides and poisoned bee-friendly plants! www.beyondpesticides.org/pollinators/index.php  www.BeeAction.org II. […]

(Beyond Pesticides, September 17, 2013) Last Friday, Health Canada released new measures the agency claims are intended to protect bees from exposure to neonicotinoid pesticides. As with recent regulations proposed by the U.S. Environmental Protection Agency (EPA), beekeepers and environmental groups are criticizing the measures as inadequate, not going far enough to protect domesticated honey bees that both in Canada and the U.S.  have seen losses of over 30% each winter since 2006. Ontario beekeeper Dave Schuit told the CBC, “Basically I see it as a Band-Aid. [The Pest Management Regulatory Agency] should’ve done their study before they approved this pesticide.” Dave Schuit owns Saugeen Country Honey Inc., and reportedly lost 37 million bees last year — more than half of his over 2,000 hives — as a result of exposure to neonicotinoid pesticides. Health Canada’s proposal includes: Requiring the use of safer dust-reducing seed flow lubricants (most corn and soy seed is coated with neonicotinod pesticides before planting and then mixed with a lubricant like talc that creates a toxic  dust in seed planters); Requiring adherence to safer seed planting practices; Requiring new pesticide and seed package labels with enhanced warnings; and Requiring updated value information be provided to […]

(Beyond Pesticides, September 11, 2013) In a report released Monday, the Government Accountability Office (GAO) finds that the U.S. Environmental Protection Agency (EPA)’s use and oversight of conditional registrations is lacking and unreliable. Conditional registration allows pesticides onto the consumer market without all the required data to assess the chemical’s safety. This has created many serious human and environmental health problems, including bee decline, tree death and potential increases in human health risks. GAO recommends that EPA better track conditional registrations, however, Beyond Pesticides and other concerned groups urge the agency to cancel registrations until all relevant data is submitted and reviewed. According to the findings of the GAO’s report, EPA’s system for tracking pesticides with conditional registration is unreliable and thus, the total number of conditional registrations granted is unclear.   This lack of a reliable system for managing conditional registrations constitutes an ”˜internal control weakness’ because the agency lacks an effective mechanism for program oversight and decision making, according to federal internal control standards cited by GAO. The report states, “The extent to which EPA ensures that companies submit additional required data and EPA reviews these data is unknown. Specifically, EPA does not have a reliable system, such […]

(Beyond Pesticides, September 5, 2013) One of Florida’s largest citrus growers, Ben Hill Griffin, Inc., has been fined a mere $1,500 after a state investigation found that the farm illegally sprayed pesticides, resulting in the death of millions of managed honey bees. Beekeeper Randall Foti, a Crystal River-based beekeeper of 42 years, reported the bee kill to the state back in March. According to Mr. Roti, millions of his bees, as well as those owned by beekeeper Barry Hart of Fargo, GA, were dead as a result of over a dozen aerial pesticide sprayings in the orange groves. He estimates that due to the bee kills, his colonies were only able to produce half the amount of honey, resulting in a loss of $240,000 from honey alone. ”Every four days, they were spraying seven or eight different types of chemicals,” Mr. Foti told the Palm Beach Post.  “A $1,500 fine is not much of a deterrent.” Though this is the first time the state of Florida has taken action against a citrus grower for a reported bee kill in relation to a pesticide violation, the Palm Beach Post reports that beekeepers have been arguing for this type of action since […]

(Beyond Pesticides, August 28, 2013) Industry giant, Syngenta, has filed a legal challenge to the European Union’s suspension of one of its insecticides, thiamethoxam, linked to the decline in bee populations that has been observed in Europe and the rest of the world. Thiamethoxam, a neonicotinoid and active ingredient in Syngenta’s Cruiser seed treatments, is widely used to treat seed and degrades into another neonicotinoid, clothianidin, also subject to a moratorium in the  European Union. Both chemicals are cited in a lawsuit seeking their suspension, which was brought by beekeepers and environmental groups in the U.S. Earlier this year, the European Commission made a landmark decision announcing a two-year continent-wide ban on the neonicotinoid pesticides: clothianidin, imidacloprid and thiamethoxam. The decision came in response to a scientific report by the European Food Safety Authority (EFSA) that identified “high acute risk” to honey bees from uses of the neonicotinoid chemicals. Thiamethoxam, as well as clothianidin, are routinely used to treat seeds, especially for major crops like corn. A  15 member states majority  supported the ban, with eight against, and four abstaining. However, in its press release, Syngenta claims that the European Commission made its  decision on the basis of a flawed […]

(Beyond Pesticides, August 26, 2013) A recent study presented by the Centers for Disease Control and Prevention (CDC)   at the International Conference on Lyme Borreliosis and other Tick-Borne Diseases in Boston finds that spraying lawns with the insecticide bifenthrin does not reduce the incidence of tick-borne diseases. The study could have important policy implications for towns and communities that are feeling pressure to spray as prevalence of tick-borne diseases, such as Lyme disease, continue to rise.  There are least-toxic alternative management strategies that are effective and safer than chemical controls. The recently released study by CDC included 2,500 households in Fairfield, Litchfield, and New Haven Counties in Connecticut; Dutchess County in New York; and four counties in Maryland. Half of the households’ lawns were sprayed with bifenthrin and the other half was sprayed with water as a control. The study, conducted over two years, found that the households that were sprayed with bifentrhin saw a 60 percent reduction in ticks on their propriety but still had similar levels of tick encounters and tick-borne illnesses. These final results are similar to the results the study found after its first year.   This research reveals that using pesticides is not an […]

(Beyond Pesticides, August 19, 2013) The U.S. Environmental Protection Agency’s (EPA) new pesticide label for honey bee protection, announced Thursday, has been widely criticized by beekeepers and environmentalists as offering inadequate protection in the face of devastating bee decline. Under the new guidelines, the label will prohibit the use of some neonicotinoid pesticides when bees are present, and includes a “bee advisory box” and icon with information on routes of exposure and spray drift precautions. Critics question the efficacy of the label change in curtailing a systemic pesticide that contaminates nectar and pollen, poisoning bees indiscriminately, and the enforceability of the label language, which is geared to managed not wild bees. EPA has not formally acknowledged the peer-reviewed science linking neonicotinoid pesticides to colony collapse disorder and bee decline, as is the case with the European Union’s European Food Safety Authority (EFSA), where neonicotinoids are being phased out. Specifically, the new label applies to pesticide products containing the neonicotinoids imidacloprid, dinotefuran, clothianidin and thiamethoxam. Neonicotinoids are a relatively new class of insecticides that share a common mode of action that affect the central nervous system of insects, resulting in paralysis and death. They include imidacloprid, acetamiprid, clothianidin, dinotefuran, nithiazine, thiacloprid […]

(Beyond Pesticides, August 16, 2013) Beyond Pesticides just helped release a new report with Friends of the Earth and other allies, revealing that the world’s most popular pesticide, neonicotinoids, implicated as a key factor in global bee die-offs, may be lurking in our own gardens. As we celebrate National Honey Bee Day this weekend, join in asking Lowe’s, Home Depot and other leading garden centers to take action and stop the sale of neonicotinoids and plants treated with these bee-killing chemicals. Take Action: Bee Protective! Tell Home Depot, Lowe’s and others to stop selling bee-killing products. There are now dozens of insecticides on retail shelves that contain neonicotinoids. Product labels show the active ingredients of these products, including: imidacloprid,  acetamiprid, clothianidin, dinotefuran, nithiazine, thiacloprid and thiamethoxam. While neonicotinoids is a relatively new class of insecticide that affects the central nervous system of insects, a growing body of science has demonstrated neonicotinoids (neonics) are a key factor in bee decline nationwide, with beekeepers recording losses of up to 90 percent of their bees this winter. Recently, 50,000 bumblebees, likely representing over 300 colonies, were found dead or dying in a shopping mall parking lot in Wilsonville, Oregon. Authorities confirmed that this […]

(Beyond Pesticides, August 15, 2013) Many “bee friendly” home garden plants sold at Home Depot (NYSE: HD), Lowe’s (NYSE: LOW) and other leading garden centers have been treated with pesticides shown to harm and kill bees, according to a pilot study released yesterday by   Friends of the Earth-US, Beyond Pesticides,  and others.  Supporting organizations sent a  letter  yesterday —along with petitions signed by more than 175,000 people— to Lowe’s, Home Depot, Target and other top garden retailers, asking the stores to stop selling neonicotinoids and plants treated with the pesticides. A majority of the UK’s largest garden retailers, including Homebase, B&Q and Wickes, have already stopped selling neonicotinoids. The pilot study, co-authored by the Pesticide Research Institute, found that 7 of 13 samples of garden plants purchased at top retailers in Washington DC, the San Francisco Bay Area and Minneapolis contain neurotoxic pesticides known as neonicotinoids that studies show harm or kill bees and other pollinators. Neonicotinoids are a relatively new class of insecticides that share a common mode of action that affect the central nervous system of insects, resulting in paralysis and death. These systemic pesticides, which  move through the plant’s vascular system and express themselves through pollen […]

(Beyond Pesticides, August 14, 2013) With another school year upon us, this can be an exciting and busy time of the year for parents and teachers as children prepare for the first day back. During this hectic time, it’s important to remember that children may face unexpected dangers at school from well-intentioned but misguided attempts to create a germ and pest-free environment through the use of pesticides. Students are better served when schools use environmentally friendly products and practice integrated pest management techniques.   Additionally, schools can further their students’ education outside the classroom by providing habitat for wildlife and growing organic food in a school garden.   By thinking green and going organic, your child’s school can become a model for the type of change that’s occurring in communities across the nation. Beyond Pesticides has put together this back-to-school guide to help safeguard your kids from dangerous chemicals at school. Use this list to start the new school year right and ensure that you are sending your kids back to a healthier and safer environment. Fight Germs Without Triclosan Because of its link to adverse health effects – including asthma, cancer and learning dis ­abilities, triclosan has no place […]

(Beyond Pesticides, July 29, 2013) Researchers at the U.S. Department of Agriculture (USDA) and University of Maryland have found that low levels of pesticide exposure from crop pollination make honey bees more susceptible to the deadly gut parasite, Nosema ceranae, contributing to declines in bee populations. The study’s findings, released Wednesday July 24 in the journal PLoSONE, expand on a recent report released by the USDA that found parasites, disease, genetics, poor nutrition, and pesticide exposure as synergistic factors in the observable nationwide honey bee decline, but focused on technological stopgap measures without questioning the  sustainability of widespread systemic neonicotinoid pesticide use.  Adding urgency to USDA’s research, another study released just last Monday in the Proceedings from the National Academy of Sciences shows that pollinator losses can have a detrimental effects on plant reproduction. Pesticide Exposure and Susceptibility to Disease The newest USDA research adds to the growing body of evidence that shows pesticide exposure weakens honey bees’ immune system making them more susceptible to parasites and pathogens. Researchers took pollen samples from crops that honey bees are known to pollinate including apples, watermelons, pumpkins, cucumbers, blueberries, and cranberries to determine exposure levels and Nosema infection. In sum, researchers found […]

(Beyond Pesticides, July 24, 2013) Gina McCarthy, a veteran environmental regulator and President Obama’s pick to run the U.S. Environmental Protection Agency (EPA),  finally had her appointment confirmed by the U.S. Senate after an almost five month delay imposed by Senate Republicans. Ms. McCarthy’s appointment got caught up with other cabinet appointments that Republicans were blocking. News of her confirmation was applauded by environmental groups who urge her to focus of several key environmental issues before the agency including climate change, farmworker justice, and pollinator protection. Last Friday the Senate confirmed Gina McCarthy to lead EPA, ending the agency’s longest period without a permanent administrator and closing the door on a contentious dispute over votes on executive nominees. Ms. McCarthy, who currently heads the agency’s Air and Radiation Office, was confirmed on a 59-40 vote. Ms. McCarthy will succeed Lisa Jackson, who stepped down in February, and replaces acting Administrator Bob Perciasepe. The Senate Environment and Public Works Committee cleared Ms. McCarthy’s nomination in May. Environment and Public Works Chairwoman Barbara Boxer (D-Calif.) said ahead of the vote that the Senate could “not have a more qualified, more bipartisan nominee,” noting that Ms. McCarthy had worked for Republican governors in […]

(Beyond Pesticides, July 18, 2013) A few months after the groundbreaking decision to suspend the use of three neonicotinoids shown to be highly toxic to bees, the European Commission is moving forward again with a proposal to restrict the use of the insecticide fipronil, which has also   been identified as posing an acute risk to honey bees. The proposal is backed by a Member State experts meeting in the Standing Committee on Food Chain and Animal Health. This proposal follows a European Food Safety Authority (EFSA)  scientific risk assessment, published on May 27, 2013, which found that seeds treated with pesticides containing fipronil pose an acute risk to Europe’s honey bee population. According to this assessment, it was found that fipronil poses a high acute risk to honeybees when used as a seed treatment for corn. Specifically, EFSA concluded that high acute risk from dust drift resulting from treated corn exists, and identified several data gaps and study limitations for other field crops. Data on nectar and pollen could not be evaluated. 23 Member States supported the fipronil restriction, 2 Member States voted against and 3 Member States abstained during the standing committee vote. This latest EU-wide restriction comes […]

(Beyond Pesticides, July 17, 2013) Capitol Hill is buzzing about a new bill that aims to provide long overdue protections for America’s imperiled pollinators. Representatives John Conyers (D-MI) and Earl Blumenauer (D- OR) introduced H.R. 2692,   The Saving America’s Pollinators Act, calling for the suspension of neonicotinoids, a class of systemic pesticides that are killing bees. Tell your Representative to Save America’s Pollinators! The United States is lagging behind our European neighbors when it comes to the protection of pollinator health. Earlier this year, the EU announced a two-year suspension on these bee-killing pesticides. Now it’s time for the U.S. to act. The Save America’s Pollinators Act will suspend the use of neonicotinoid pesticides until a full review of scientific evidence and a field study demonstrates no harmful impacts to pollinators. Following the introduction of the legislation, Reps. Conyers and Blumenauer issued the following statement: Rep. John Conyers, Jr. (D-Mich): “One of every three bites of food we eat is from a crop pollinated by honey bees. These crops include apples, avocados, cranberries, cherries, broccoli, peaches, carrots, grapes, soybeans, sugar beets and onions. Unfortunately, unless swift action is taken, these crops, and numerous others, will soon disappear due to […]

(Beyond Pesticides, July 10, 2013) Several beekeeping organizations have filed suit against the U.S. Environmental Protection Agency’s (EPA) to reverse a recent decision to register a new  pesticide, sulfoxaflor, which is highly toxic to bees. The beekeepers are not satisfied that their submitted concerns were properly addressed by EPA before registration was granted. Sulfoxaflor is a sub-class of the neonicotinoid pesticides that have been linked to global bee declines. The suit is filed as the beekeeping industry across the country struggles for survival, and faces the costly effects of pesticides upon their businesses. The National Pollinator Defense Fund, American Honey Producers Association, National Honey Bee Advisory Board, the American Beekeeping Federation, and beekeepers Bret Adee, Jeff Anderson and Thomas R. Smith submitted the case in the U.S. Ninth Circuit Court of Appeals, requesting changes in the sulfoxaflor product label, the Biological Economic Assessment Division (BEAD) assessment of the value of pollinators and their established habits, and the EPA’s Risk Assessment Process. The requested changes would acknowledge pollinator’s critical role in the U.S. food supply, and ensure that decisions regarding new pesticides comply with applicable laws. Another legal challenge submitted in March 2013 by beekeepers, environmental and consumer groups, including Beyond […]

(Beyond Pesticides, July 3, 2013) In light of recent action in Europe to suspend to use of certain neonicotinoid pesticides, Beyond Pesticides joined 12 other environmental and advocacy organizations in urging the Obama administration to direct the U.S. Environmental Protection Agency (EPA) to follow the European Union’s (EU) lead in recognizing that risks posed by these pesticides are unacceptably high, and suspend the use of these chemicals in the U.S. to protect pollinators and the nation’s agricultural economy. The letter urges the Obama administration to not only direct EPA to follow Europe’s lead in suspending certain neonicotinoid pesticides uses, but requests even more protective measures, including a minimum two-year suspension for all outdoor uses of neonicotinoid insecticides pending resolution of their hazards to bees and beneficial organisms. Highlighting the negative environmental and economic impacts of outdoor uses of the EPA-approved neonicotinoid insecticides: imidacloprid, clothianidin  , thiamethoxam, dinetofuran and acetamiprid, as well as a recognition that the initial risk assessments for these chemicals fail to adequately consider key risks to bee health, the letter to President Obama notes that it, “would not be responsible to continue to allow these threatening compounds to be used so broadly.” On average, U.S. beekeepers lost […]

(Beyond Pesticides, July 2, 2013) In the wake of massive bee kills, the Oregon Department of Agriculture (ODA) is placing temporary restrictions on the use of pesticides with the active ingredient dinotefuran. Dinotefuran, a neonicotinoid pesticide, was confirmed as the cause of one massive bee die-off in Wilsonville, Oregon, and suspected as the cause of another bee die off in Hillsboro, Oregon. This temporary restriction will be in place for 180 days for a limited number of dinotefuran uses. Environmental advocates have sued EPA  on neonicotinoid  pesticides, citing its regulatory process  as deficient in  protecting bees and other beneficial organisms. Just as Pollinator Week 2013 began, an estimated 50,000 bumblebees, likely representing over 300 colonies, were found dead or dying in Wilsonville. According to the Xerces Society, this was the largest known incident of bumblebee deaths ever recorded in the country. After a preliminary investigation, ODA confirmed that the massive bee die-off was caused by the use of the insecticide dinotefuran. Then, it was reported by The Oregonian that hundreds of bees were found dead after the same pesticide was used in the neighboring town of Hillsboro. Dan Hilburn, director of plant programs at the Oregon Department of Agriculture (ODA), […]