<div dir="ltr"><div class="gmail_quote"><div lang="EN-US" link="blue" vlink="purple" style="word-wrap:break-word"><div class="m_5849808606790952309WordSection1"><div><div><div><div><span style="color:black;font-size:16pt">Research surprise unveils how common herbicide kills bees</span><br></div><div><a href="https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.13867" target="_blank" style="font-family:"Segoe UI Historic",sans-serif;font-size:13.3333px">https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.13867</a><span style="color:black;font-size:16pt"><br></span></div>
<p class="MsoNormal"><span style="color:black"><a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.eenews.net%2Fstaff%2FMarc_Heller&data=04%7C01%7CSeth_Lerman%40nps.gov%7C283e34173094481af5c208d9037090fb%7C0693b5ba4b184d7b9341f32f400a5494%7C0%7C0%7C637544604262748859%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=91gq%2BHB0K%2F0QgMfjV287lumBTZcuNWO08uq5pXyyTr4%3D&reserved=0" target="_blank">Marc
Heller</a>, E&E News reporter</span><span style="font-size:12.0pt;font-family:"Georgia",serif;color:black">Published: Monday, April 19, 2021</span><span style="font-size:12.0pt;font-family:"Georgia",serif;color:black"><img border="0" width="938" height="483" style="width:9.7708in;height:5.0312in" id="m_5849808606790952309_x0000_i1026" src="https://www.eenews.net/image_assets/2021/04/image_asset_115449.jpg" alt="Buff-tailed bumblebee. Photo credit: Eduardo E. Zattara"></span><span style="font-size:12.0pt;font-family:"Georgia",serif;color:black">
<u></u><u></u></span></p>
<p style="margin-right:3.75pt;margin-bottom:0in;margin-left:3.75pt;margin-bottom:.0001pt">
<span style="font-size:9.0pt;color:#666666">A buff-tailed bumblebee forages on a head of red clover flowers. </span><span style="font-size:8.5pt;color:#999999">Eduardo E. Zattara</span><span style="font-size:9.0pt;color:#666666"><u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">Many studies already claimed the nation's most-used weedkiller was lethal to bees, but new research indicates its much-maligned active ingredient — glyphosate — isn't to blame.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">Instead, the culprit appears to be inert ingredients added to the herbicide, such as wetting agents called surfactants, according to researchers at Royal Holloway, University of London.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">Groups critical of pesticides, such as the Center for Biological Diversity and the Center for Food Safety, urged EPA to put new controls on the use of the ingredients, which often aren't disclosed on labels.<u></u><u></u></span></p>
<p style="outline:0px"><span style="color:black">The researchers published their <a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbesjournals.onlinelibrary.wiley.com%2Fdoi%2F10.1111%2F1365-2664.13867&data=04%7C01%7CSeth_Lerman%40nps.gov%7C283e34173094481af5c208d9037090fb%7C0693b5ba4b184d7b9341f32f400a5494%7C0%7C0%7C637544604262758817%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=W0RIA3ZIg0TKG1vpyn3j%2FIyFBP6rPFlgmFRnpPwqzQw%3D&reserved=0" target="_blank">findings</a> earlier
this month in the <em><span style="font-family:"Calibri",sans-serif">Journal of Applied Ecology</span></em>.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">For their study, the researchers said they used a few versions of Roundup, the brand-name herbicide made by Bayer AG, and found mortality rates of greater than 90% in bumblebees exposed to it. But a glyphosate-free version also killed
96% of exposed bees, they said, "demonstrating that the active ingredient, glyphosate, is not the cause of the mortality."<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">Surfactants and other ingredients may suffocate the bees by blocking their tracheal systems, according to the study.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">Researchers have already established that surfactants are toxic to honeybees and solitary bees. This was the first major study finding similar threats to bumblebees, the researchers said.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">While bumblebees aren't major commercial pollinators on the same scale as honeybees, they're important in the wild for pollinating various plants. The potential effect of farm chemicals on wild, native bees is alarming enough to warrant
further study, scientists and environmental group say.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">"Given the hazard demonstrated here with all tested Roundup® products, and the extensive exposure of bees to such GBHs [glyphosate-based herbicides] world-wide, GBHs may pose a high risk to bees, and thus may be an as yet unidentified
driver of the bee declines that are occurring around the globe," the study said.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">Bayer, which acquired Roundup in its merger with Monsanto Co. in 2018, has cited studies showing no adverse effect on honeybees from glyphosate exposure, even when hives are treated with amounts considerably greater than they would
typically see in the environment.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">"Glyphosate products have been extensively tested in the laboratory and in the field to evaluate potential toxicity to honey bees. This extensive testing has found, when used according to the label, that glyphosate products pose no
acute or chronic adverse effects to honey bees," the company said on its website. A spokesperson didn't have an immediate comment today on the new study.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">Glyphosate is the most commonly used herbicide on U.S. farms. Crops such as corn and soybeans have been genetically modified to survive application of the chemical, helping drive a surge in use. Manufacturers and some farm groups tout
it as a soil conservation hero, since farmers who use it don't have to till the soil as much to eliminate weeds.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">The herbicide faces a stiff challenge, and lawsuits from critics who point to an International Agency for Research on Cancer's finding in 2015 that it probably causes cancer, although scientific agencies in the United States and elsewhere,
including EPA, have disputed that conclusion.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">EPA has registered more than 1,100 herbicide formulations containing glyphosate as an active ingredient. The inert ingredients are considered proprietary, and the agency doesn't disclose them, according to CBD.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">CBD said the latest study supports its position that EPA should require disclosure of inert ingredients and force companies to submit safety data on them as part of periodic pesticide reviews at the agency.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">CFS requested such a move by EPA during the Trump administration, but the Trump EPA did not act on the request.<u></u><u></u></span></p>
<p style="margin-right:0in;margin-bottom:12.0pt;margin-left:0in;outline:0px">
<span style="color:black">"This important new study exposes a fatal flaw in how pesticide products are regulated here in the U.S.," said Jess Tyler, a staff scientist at CBD, in a news release. "Now the question is, will the Biden administration fix this problem,
or will it allow the EPA to continue its past practice of ignoring the real-world harms of pesticides?"<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:black">Email: <b><span style="color:#6d9230"><a href="mailto:mheller@eenews.net" target="_blank">mheller@eenews.net</a></span></b></span></p></div><div><div id="m_5849808606790952309x_Signature"><div><div><div>
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