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Western Monarch Butterfly Count Lowest this Decade, Raising Fears of Extinction

Wednesday, February 7th, 2018

(Beyond Pesticides, February 7, 2018) New data from the California monarch butterfly count indicate that the western population of the species is continuing to decline at an alarming rate, with scientists and conservation groups pointing to man-made factors like logging, climate change, and herbicide use on genetically engineered (GE) crop fields as primary drivers. The annual California count of western monarch butterflies stationed volunteers at 262 sites, more than ever before, yet at 200,000 butterflies counted, the numbers nearly matched the lowest level recorded this decade, when only 145,000 butterflies were seen in 2012. The decline of these iconic butterflies demands swift action from lawmakers and regulators to protect their dwindling numbers. Dramatic declines in monarch populations mirror continuing declines in honey bees and other wild pollinator species. Species declines may be even broader than pollinators, affecting all insects in general. Research from Germany recently found that insect abundance declined 75% over the last 30 years, owing the results primarily to agricultural intensification. The western population of monarch butterflies – those found west of the Rocky Mountains – overwinter in coastal California forests. Throughout the warmer months, female butterflies will lay eggs only on milkweed, making these plants critical to […]

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Take Action: Tell the Natural Resources Conservation Service (NRCS) to Support Monarch Habitat

Monday, December 11th, 2017

(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 –including the implementation of the Monarch Butterfly Habitat Development Project and support for the Monarch Butterfly Conservation Fund— last year’s NRCS expenditure of $4 million was insufficient to prevent the monarchs’ 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 […]

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Groups Urge Trump Administration to Protect Monarch Butterflies

Wednesday, December 6th, 2017

(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 animal’s 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 […]

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Monarch Butterflies at Risk of Extinction; Pesticides, Habitat Loss to Blame

Wednesday, September 13th, 2017

(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 – 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 study’s 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 […]

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European Union Plans to Propose a 10-year Extension for the Approval of Glyphosate Use

Friday, May 19th, 2017

(Beyond Pesticides, May 19, 2017) In spite of a growing body of evidence implicating glyphosate in a wide range of human illnesses and environmental impacts, the European Union (EU) plans to propose a 10-year extension for the approval of glyphosate use. Previously, the European Commission (the Commission), which is in charge of the approval, was forced to issue a limited license extension for the chemical because member states could not reach a consensus. The Commission was holding out for further information on carcinogenicity, which was assessed by the European Chemicals Agency (ECHA), and whose report was issued in March 2017. According to ECHA’s assessment, glyphosate is not carcinogenic. Glyphosate is the active ingredient in Monsanto’s Roundup brand of weed-killers, and research by the World Health Organization’s International Agency for Research on Cancer (IARC) has found that it is a probable human carcinogen. Since IARC’s findings were released, Monsanto has made several efforts to discredit the research of this well respected, international body, including attempting to influence government agencies. According to a Bloomberg BNA article, “The commission will discuss with EU member nations the prospect of a 10-year reauthorization, said Anca Paduraru, spokeswoman for the commission.” Once the Commission proposes the […]

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Herbicide Use Contributes to Declines in Monarch Populations

Monday, February 13th, 2017

(Beyond Pesticides, February 13, 2017)  A study by the World Wildlife Fund (WWF) and others  attributes the reduced number of overwintering monarch butterflies –a reduction of 27% from last year—to herbicide use and other factors. The World Wildlife Fund (WWF), in conjunction with U.S. and Mexican environmental groups, has been leading the effort in tracking monarch butterflies.  Their recently released 2016-2017 study concluded that the population of monarch butterflies decreased 27 percent from last year’s population, which had marked an increase from dangerously low levels over the previous three years.  Overall, this marks an 80 percent decline in monarch population from the 1990’s.  Researchers have estimated that within 20 years the monarch butterfly migration could collapse altogether. The study was conducted in December of 2016 when the colonies of monarchs are expected to be at their peak population in Mexico.  Monarch populations are gauged by the area of land they inhabit, rather than counts of butterflies.   Thirteen butterfly colonies were observed, recorded and tracked using geographic information systems software.  The researchers found that the butterflies occupied 2.91 hectares of forest, which re presents a 27.43 percent decrease in population compared to the 4.01 hectares of forest they inhabited during the […]

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Genetically Engineered Crops Fail to Increase Yields and Reduce Pesticide Use, Exposé Reveals

Tuesday, November 1st, 2016

(Beyond Pesticides, November 1, 2016) A report published this weekend in The New York Times finds that the shift to genetically engineered (GE) crops in the United States and Canada over the past two decades has increased the use of pesticides in North America, and failed to produce any significant yield increases. When the technology was first introduced, multinational agrichemical companies claimed just the opposite would occur- yields would spike and pesticide use would be minimized. As far back as 1998, Beyond Pesticides asked, “Is the failed pesticide paradigm being genetically engineered?” As the Times and numerous other publications before it have found, the answer was and still is yes. The far-ranging expose by the Times on the state of the GE industry used publicly available data from the United Nations to compare yields between that of Europe and North America. Their data show “no discernible advantage in yields — food per acre” for the United States and Canada over Western Europe during the time of GE crop adoption. A comparison between rapeseed yields in Canada and Western Europe shows increases in both regions, with Europe’s yields consistently higher, independent of the use of GE crops. For corn, gains in […]

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U.S. Land Use Changes Add Further Strain to Commercial Beekeeping

Tuesday, September 13th, 2016

(Beyond Pesticides, September 13, 2016) Land suitable for commercial beekeepers in the U.S. Northern Great Plains (NGP) is declining rapidly, according to a new study released earlier this month by the U.S. Geological Service (USGS). The region, which supports over 40% of managed honey bee colonies, is quickly replacing suitable pollinator habitat with more and more pesticide-intensive biofuel crops, particularly corn and soybean, as a result of increased crop prices and federal subsidies for biofuels. The concerning trend adds another layer of stress not only to honey bee colonies, but beekeepers whose livelihood depends on the health of their commercial livestock. From early summer to mid-fall, roughly one million honey bee colonies make their way through the Northern Great Plains of North and South Dakota. The area is not usually a stop for pollination services, but a place where beekeepers go to generate a honey crop and improve the health of their colonies. Most of the colonies that summer in the NGP are trucked across the country to pollinate fruiting crops like apples, cherries, melons, and almonds during the winter, or are otherwise moved south to produce packaged bee colonies or queens. According to the USGS study, published in the […]

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GE Crops Lead to Increase in Toxic Herbicide Use

Thursday, September 8th, 2016

(Beyond Pesticides, September 8, 2016)  According to  a study  published last week by scientists at Iowa State, genetically engineered (GE) crops have not lived up to their promise to reduce pesticide use, and have instead led to an increase in toxic herbicide usage. The research, led by Edward Perry, Ph.D., found “clear evidence of increasing herbicide use by [GE] variety adopters over time for both soybeans and maize,” a finding that they credited partly to the emergence of weed resistance. The detailed dataset analyzed came from the company, GfK Kynetec, which conducts surveys of randomly selected farmers to assess decisions about pesticide and seed choices. The farm-level dataset that the researchers used was collected over the years 1998-2011 and includes a yearly average of 5,424 corn farmers and 5,029 soybean farmers. One striking trend that was noted since 1998 was the increase in the use of  glyphosate, the active ingredient in Monsanto’s Roundup. As of 2011, glyphosate was the primary herbicide used on soybeans, with just over 80% of total herbicide applied, and in corn it made up 40% of herbicide use, representing close to a 20-fold increase since 1998. Marketed as Roundup and other trade names,  glyphosate  is a […]

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More Evidence Shows Neonics Harm Butterflies

Friday, August 19th, 2016

(Beyond Pesticides, August 19, 2016) A study published earlier this week has found that the increasing use of neonicotinoid (neonic) insecticides is correlated with a steep decline in butterfly health and reproductive success — as more neonics are used, butterflies are struggling to survive. This study adds to previous evidence that demonstrates, in addition to bees, neonics can cause serious harm to other important pollinators. The study, Increasing neonicotinoid use and the declining butterfly fauna of lowland California, looks at 67 species of butterfly fauna in the lowlands of Northern California at four sites that were  monitored for approximately 30-40 years. The sites include Suisun Marsh, West Sacramento, North Sacramento, and Rancho Cordova. While controlling for land use and other factors, the researchers found a correlation between butterfly population decline and increasing neonic applications, which also appeared to be more severe for smaller-bodied species. According to the researchers, the results suggest that neonics could influence non-target insect populations when applied nearby. This study contributes to the mounting evidence that neonicotinoid insecticides are linked to pollinator decline. Neonics have increasingly been the subject of studies that highlight a relationship between neonicotinoid exposure  and harmful effects to pollinators. These effects are being […]

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Students Celebrate Pollinators by Spreading Bee and Butterfly Habitat

Monday, June 20th, 2016

(Beyond Pesticides June 20, 2016) As the end of the school year approaches, two first grade classrooms at local District of Columbia Public Schools (DCPS) got to learn about the importance of pollinators firsthand when DC-based nonprofit Beyond Pesticides visited their school. In a lead up to National Pollinator Week, Beyond Pesticides teamed up with owner and founder of The Bees Waggle, Jessica Goldstrohm, to provide a fun, hands-on lesson about pollination, and why it is important to our food system. Students were given a lesson on biodiversity, soil health, and the negative effects of pesticides on pollinators before building some pollinator-friendly habitat for their schools and homes. The day of learning kicked off at Brightwood Education Campus, located in Northwest DC, where students listened to a lesson developed by Ms. Goldstrohm, who donned a set of bee wings for the event. After receiving some background on the role of pollinators in our food system, the children participated in several hands on activities that reiterated the key points within the curriculum. Six volunteers stepped to the front of the class to demonstrate the interconnectedness of all living organisms by participating in a biodiversity web simulation. Here, the scholars learned that […]

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Glyphosate Approval in EU Up in the Air

Friday, June 10th, 2016

(Beyond Pesticides, June 10, 2016) A proposal for a temporary ‘technical extension’ of the EU approval of the herbicide glyphosate failed to secure the support of a majority of EU governments at a meeting of the EU standing committee on plants, animals, food and feed on Monday. This action may force the withdrawal of the herbicide, widely sold as Monsanto’s Roundup, from shelves if no decision is reached by the end of the month, when its license expires. After a proposal to renew the license for glyphosate for up to 15 years failed to win support in two meetings earlier this year, the EU executive offered a limited 12 to 18 month extension to allow time for further scientific study. Yet, despite this compromise, the proposal failed to win the support of member states representing at least 65% of the EU’s population, which is needed for adoption, an EU official told The Guardian. Seven member states abstained from Monday’s vote, 20 backed the proposal and one voted against, a German environment ministry spokeswoman said. According to the news source, Germany was among those that abstained from Monday’s vote. Of note is that Bayer, the German chemical company, recently offered to […]

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The Controversy Heats Up on the Cancer Causing Properties of Roundup

Wednesday, May 18th, 2016

(Beyond Pesticides, May 18, 2016) The controversy continues on glyphosate’s (Roundup) cancer causing properties, as some question the influence of the chemical industry and Monsanto, Roundup’s manufacturer, on newly announced  findings, according to The Guardian.  A joint review by the United Nations (UN) and World Health Organization (WHO) on  glyphosate, released this week,  seems to contradict earlier findings (at least based on food exposure) of the International Agency for Research on Cancer (the preeminent scientific body on carcinogenesis in the world), which classified Roundup as a “probable human carcinogen.” The Guardian disclosed, “Professor Alan Boobis, who chaired the UN’s joint FAO/WHO meeting on glyphosate, also works as the vice-president of the International Life Science Institute (ILSI) Europe. The co-chair of the sessions was Professor Angelo Moretto, a board member of ILSI’s Health and Environmental Services Institute, and of its Risk21 steering group too, which Boobis also co-chairs.  In 2012, the ILSI group took a $500,000 donation from Monsanto and a $528,500 donation from the industry group Croplife International, which represents  Monsanto, Dow, Syngenta and others, according to documents obtained by the US right to know campaign. Boobis was not able to comment on the issue, and ILSI’s office in Washington […]

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Glyphosate Residues Found in Common Breakfast Foods

Thursday, April 21st, 2016

(Beyond Pesticides, April 21, 2016) A report released Tuesday by the Alliance for Natural Health (ANH) shows that glyphosate residues are widely distributed in common breakfast foods, such as bagels, cereals, creamers, and eggs. Glyphosate is a pervasive and toxic chemical found in Monsanto’s Roundup weedkiller and was classified by the International Agency for Research on Cancer (IARC) as a probable human carcinogen in 2015. The report looks at conventional and organic-certified versions of 12  popular breakfast foods and ingredients (a total of 24 items) and finds that many of the sample foods or ingredients contain detectable levels of glyphosate. Testing was done by an independent laboratory using the ELISA (enzyme-linked immunosorbent assay) method. Categories tested were: flour, corn flakes, instant oatmeal, bagels, yogurt, bread, frozen hash browns, potatoes, cream of wheat, eggs, non-dairy creamers, and dairy based coffee creamers. Of note is the finding that a sample of organic cage-free eggs contain more glyphosate than the allowable tolerance level. The lab found glyphosate residue levels of 169 parts per billion (ppb), while the allowable tolerance level is only 50ppb. The report acknowledges that the effects of other chemical ingredients in glyphosate formulations have not been evaluated, and the consequences […]

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Glyphosate Found to Contaminate California Wine

Friday, March 25th, 2016

(Beyond Pesticides, March 25, 2016) Glyphosate is found to contaminate California wines, according to a new report from the non-profit group Moms Across America. Glyphosate is pervasive and toxic chemical found in Monsanto’s Roundup weedkiller and was classified in 2015  as a probable carcinogen  by the International Agency for Research on Cancer (IARC). The report finds that all of the ten wines tested positive for glyphosate. The highest level of glyphosate detected was nearly 30 times higher (at 18.74 parts-per-billion, or ppb) than other wines from a 2013 Cabernet Sauvignon  sourced from a conventional, chemically farmed vineyard. The lowest level (.659 ppb) was from a biodynamic and organic vineyard, a 2013 Syrah. According to the owner, the vineyard has never been sprayed, indicating the possibility of pesticide drift from conventional agriculture, which has been a real and persistent problem for organic growers. EPA has done little to protect organic growers, who often bear the burden, both economic and otherwise, of pesticides applied to nearby conventional farmlands and vineyards. The report also points out that “the detection of glyphosate is an indicator of the presence of many other co-formulants in glyphosate-based herbicides, which have recently been shown”¦to be endocrine hormone disruptors […]

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Glyphosate Residues in Popular German Beers

Monday, February 29th, 2016

(Beyond Pesticides, February 29, 2016) Last Thursday, the Munich Environmental Institute stated that it had found traces of glyphosate, the widely used and controversial weed-killer, in 14 of Germany’s most popular beers. These findings are a potential blow to Germany’s Beer Purity Law, which is highly regarded in German beer culture. Industry and German government immediately sought to downplay the results, saying that the levels found did not pose a risk to humans. However, according to the study’s results, all levels found were above the glyphosate residue level allowed in drinking water. Consumers have a right to be worried about the findings, as glyphosate was classified in March 2015  as a probable carcinogen by the International Agency for Research on Cancer (IARC). The results, published  in German, are broken down by beer and by micrograms per liter in picture format. The researchers cite the laboratory test results of the 14 beers, which found glyphosate levels  between 0.46 and 29.74 micrograms per liter. The highest reading is 300 times the legal limit for drinking water in Germany, which is 0.1 microgram per cubic meter. Hasseroeder, a beer brewed in Saxony-Anhalt in eastern Germany and owned by Anheuser Busch Inbev, contained the […]

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Scientists Express Concern Over Widespread Use of Glyphosate-Based Herbicides

Monday, February 22nd, 2016

(Beyond Pesticides, February 22, 2016) A scientific review was released last week by a group of fourteen scientists in which they expressed concern over the widespread use of glyphosate-based herbicides (GBHs), the lack of understanding regarding human exposure, and the potential health impacts. Along with the reasons for concern, the scientific panel called for increased government scrutiny of glyphosate and further testing. In an excerpt from the review, the scientists’ state that,“A thorough and modern assessment of GBH toxicity will encompass potential endocrine disruption, impacts on the gut microbiome, carcinogenicity, and multigenerational effects looking at reproductive capability and frequency of birth defects.” The study, published in the journal Environmental Health, was authored by 14 health scientists mostly from universities. Pete Myers, founder and chief scientist at Environmental Health Sciences is the lead author of the report. “It’s time to call on the global science and regulatory community to step back and take a fresh look at glyphosate since everyone on the planet is or will be exposed,” said senior author Charles Benbrook, an agricultural economist and consultant at Benbrook Consulting Services. According to the report, federal health agencies, such as the U.S. National Toxicology Program, the U.S. Centers for Disease […]

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Studies Add to Mounting Evidence of Neonic Dangers

Monday, November 30th, 2015

(Beyond Pesticides, November 30, 2015) Last week, two studies were published that link neonicotinoid (neonic) insecticide exposure to detrimental effects in bees and butterflies. The first study, published in the international scientific journal Nature, found that bumblebees exposed to neonics suffered pollination services impairment that reduces their delivery to apple crops. The second study, published in the United Kingdom journal Peer J, used over 1,000 sites cataloged from 1984 to 2012 in the UK Butterfly Monitoring Scheme (UKBMS) database to point to the strong association between neonic use and butterfly population decline. These studies contribute to the mounting evidence that neonic insecticides are linked to pollinator decline. Neonics have increasingly been the subject of recent studies that highlight a causal relationship between neonic exposure  and harmful effects to pollinators, like foraging and reproductive complications. These effects are being identified by scientists all over the world, gradually negating industry criticism of study design. Andre Gilburn, PhD, and ecologist at the University of Stirling, led the butterfly study. He said, “Our study not only identifies a worrying link between the use of neonicotinoids and declines in butterflies, but also suggests that the strength of their impact on many species could be huge.” […]

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New Finding Says Glyphosate (Roundup) not Carcinogenic? Not so Fast

Wednesday, November 18th, 2015

(Beyond Pesticides, November 18, 2015) Last week, the European Union’s (EU) European Food Safety Agency (EFSA) announced its determination that the popular herbicide glyphosate is “unlikely to pose a carcinogenic hazard to humans.” This is in direct contrast with findings released  earlier this year by  the World Health Organization’s (WHO) International Agency for Research on Cancer (IARC), which classified glyphosate a ”˜probable carcinogen.’  However, these seemingly conflicting conclusions from these premier scientific agencies are put into perspective by knowing that EFSA’s report is limited in that it reviewed glyphosate alone, unlike IARC which reviewed glyphosate and its formulated products (Monsanto’s Roundup) which are more relevant for evaluating risks to human health. In light of the March 2015 IARC findings —listing glyphosate as a probable carcinogen due to  sufficient evidence of carcinogenicity  based on laboratory studies, the European Commission requested EFSA consider glyphosate’s potential carcinogenicity. In its report released November 12, 2015, EFSA concludes that “glyphosate is unlikely to pose a carcinogenic hazard to humans and the evidence does not support classification with regard to its carcinogenic potential..” However, the agency notes that there are “several reasons explaining the diverging views” from IARC’s earlier conclusion. The most important difference is that […]

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Research Finds Hedgerows Reduce Pesticide Use and Promote Biodiversity

Thursday, November 5th, 2015

(Beyond Pesticides, November 05, 2015) Research  at  the University of California, Davis finds  that hedgerows, a line of shrubs and trees that form a boundary at the edges of farm fields, improve a farm’s ecology and reduce the need for pesticides. Hedgerows serve many other beneficial functions; they can provide ornamental and aesthetic value, sequester carbon, and be a source of food, and more. There is also evidence that they can be an effective barrier against spray drift, reduce soil erosion, and act as habitat corridors for forest plants in agricultural landscapes.  Hedgerows support biodiversity in the face of habitat decline, given fence row to fence row cultivation practices in agriculture, manicured lawns and landscapes, urban sprawl, and the use of broad spectrum pesticides that threaten the diverse organisms that make up a healthy ecosystem. Rachael Long, M.S., a farm advisor for the UC Cooperative Extension, tells Capital Public Radio, “We have Christmas berries, and  elderberry — which has these beautiful blueberries that a lot of birds really like. We have redbud which has terrifically bright red flowers in the spring. And also ceanothus which is California lilac which has blue flowers in the spring.” She adds that birds and […]

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Study Finds Neonics “Severely Affect” Health of Honey Bee Queens

Tuesday, October 20th, 2015

(Beyond Pesticides, October 20, 2015) Exposure to neonicotinoid (neonic) pesticides results in profound negative impacts to the health of honey bee queens, according to an international team of researchers led by Geoff Williams, MD, PhD, at the University of Bern in Switzerland. While most studies to date have investigated how neonics effect the health of individual workers or overall colony fitness, Dr. William’s study, Neonicotinoid pesticides severely affect honey bee queens, is one of the first to focus on the health of honey bee queens. Neither the European Union nor U.S. Environmental Protection Agency (EPA) study the impacts of pesticides on queen health before allowing a pesticide to market. The results of this research are particularly concerning, given widespread anecdotal evidence from beekeepers across the globe that ”˜poor quality queens’ are playing a role in bee declines. To test the impacts of these chemicals on queen honey bees, scientists exposed a sample of 29 queens to field-realistic levels of the neonics  clothianidian and thiamethoxam (1 parts per billion and 4 ppb respectively), and compared them to a population of 28 control queens, which were not treated with neonics. Both groups experienced similar environmental circumstances in terms of food availability, rearing […]

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Study Finds Wildflowers Contain More Neonics than Treated Fields

Thursday, October 15th, 2015

(Beyond Pesticides, October 15, 2015) A new study, published in Environmental Science & Technology, has found that wildflowers bordering fields that are treated with neonicotinoids contain a higher concentration of the bee-toxic pesticides than the actual treated fields, pointing out an often overlooked avenue of exposure for bees. Widely-used neonicotinoids, which as systemic chemicals move through a plant’s vascular system and express poison through pollen, nectar, and guttation droplets, have been identified in multiple  peer-reviewed studies  and by beekeepers  as the major contributing factor in bee decline. The study, titled Neonicotinoid Residues in Wildflowers, A Potential Route of Chronic Exposure for Bees, discovered neonicotinoid insecticides in wildflowers, including Hogweed and Poppy pollen (up to 86ppb and 64ppb, respectively). The study’s authors  found higher concentrations of neonicotinoids in wild flowers in field margins than in Oilseed rape flowers in the adjacent neonicotinoid treated crop — on average 15ppb vs. 3ppb.   They also found that more than 97% of the neonicotinoids being brought into the hive by honey bees are from wildflowers, while only 3% are  from the crop. Researchers have found  that chronic exposure to neonicotinoids increases neuronal vulnerability to mitochondrial dysfunction in the bumblebee. In other words, these pesticides […]

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Sublethal Glyphosate (Roundup) Exposure Harms Bees

Friday, September 18th, 2015

(Beyond Pesticides, September 18, 2015) Glyphosate’s harmful effects continue to accumulate, this time with evidence pointing to toxic and sublethal effects on bees. According to a new study conducted by German and Argentinian researchers, honey bees exposed to low levels of glyphosate have a hard time returning home. Glyphosate, the  controversial and toxic active ingredient in Monsanto’s Roundup, is an herbicide widely used on genetically-engineered (GE) crops as well as on parks and golf courses, for control of weeds and grasses. Along with neonicotinoids, which have been linked to worldwide bee decline by a growing body of science, glyphosate is just another chemical in the toxic mixture that bees and other non-target organisms are constantly exposed to in the environment. In the study, titled “Effects of sublethal doses of glyphosate on honeybee navigation” and published in the Journal of Experimental Biology, researchers evaluate the effects of recommended concentrations of glyphosate used in agricultural settings on honey bee navigation and found that a single exposure to a concentration of glyphosate within this range delays the return of the foraging honey bee to the hive. Flight trajectories were also affected after successive exposure to the herbicide, suggesting that the spatial learning process […]

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