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Archive for the 'Thiamethoxam' Category


28
Jul

Neonicotinoid Insecticides Affect Bee Reproduction

(Beyond Pesticides, July 28, 2016)  Led by the Institute of Bee Health at the University of Bern, new research finds evidence that two commonly used neonicotinoid (neonic) insecticides have a significant adverse effect on the reproductive ability of male honey bees (drones) and queen bees in managed and wild colonies. The study, Neonicotinoid insecticides can serve […]

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12
Jul

Canadian Environmental Groups Sue to Stop Bee-Toxic Pesticide Use

(Beyond Pesticides, July 12, 2016) Canadian environmental organizations sued the Canadian Pest Management Regulatory Agency (PRMA) last week in a bid to overturn the approval of two neonicotinoid pesticides linked to the decline of honey bees and wild pollinators. The move comes amid growing awareness, action, and scientific evidence linking this widely used class of insecticides […]

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02
May

Study Finds Neonicotinoids Cause Compound-Specific Harm to Bumblebees

(Beyond Pesticides, May 2, 2016) A study published online last week has examined the effects of three neonicotinoids (neonics) on bumblebee colonies, from live bee kills to changed sex ratios. Neonics have been widely cited as contributing to the demise of both managed and wild bee and pollinator populations. They can cause changes in bee reproduction, navigation, […]

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16
Mar

Study Finds Bees’ Pollination Skills Impaired by Pesticides

(Beyond Pesticides, March 16, 2016) Another study, this time from researchers at the University of Guelph, finds that at very low levels the neonicotinoid pesticide thiamethoxam affects the foraging behavior of bumble bees, changing their floral preferences, hindering their ability to learn and extract nectar and pollen. This study is one of many that detail the […]

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12
Nov

Native Bees Found to Have Residues of Pesticides Linked to Their Steep Decline

(Beyond Pesticides, November 12, 2015) The U.S. Geological Survey (USGS) recently performed the first-ever study of pesticide residues on native bee populations and found that they are exposed to neonicotinoid insecticides, as well as other pesticides, at significant rates. This study digs deeper into a question that was previously considered by a researcher who studied chemical-intensive apple orchards […]

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25
Sep

Study Finds No Benefit to Bee-Toxic Neonic Use

(Beyond Pesticides, September 25, 2015) Neonicotinoid-treated seeds do not reduce crop damage from pests, adding to a growing body of evidence questioning the benefits of using these bee-toxic insecticides, according to a study published in the journal BioOne. Widely-used neonicotinoids (neonics), which as systemic chemicals move through a plant’s vascular system and express poison through pollen, […]

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28
Aug

EU Food Safety Watchdog Confirms Neonicotinoids Harmful to Bees

(Beyond Pesticides, August 28, 2015) The European Union’s food safety agency confirmed Wednesday that foliar spraying of neonicotinoids (neonics), the widely-used bee-toxic insecticides, poses a risk to bees, bolstering previous research that led to a two-year moratorium on the chemicals in the EU. The European Food Safety Authority (EFSA), which guides EU policymakers, said leaf […]

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24
Jul

UK Approves Emergency Application for Neonicotinoid Seed Treatment Use Despite Moratorium

(Beyond Pesticides, July 24, 2015) An emergency application was approved by the UK Department for Environment, Food, and Rural Affairs (DEFRA) on Wednesday that allows farmers to use neonicotinoid seed treatment on 5 percent of oilseed rape crop (known as canola in the U.S.) this summer to control a flea beetle infestation. The emergency use, which […]

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23
Jul

Neonicotinoids Harm Beneficial Predatory Insects through Secondary Poisoning

(Beyond Pesticides, July 23, 2015) A recent study looks at the detrimental effects of neonicotinoids (neonics) on molluscan herbivores and their non-target insect predators, finding that slug exposure to neonics results in the secondary poisoning of beneficial predatory beetles. The study, authored by Maggie Douglas, PhD candidate at Penn State University, was presented earlier this […]

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27
Mar

Portland, Oregon to Vote on Neonic Ban on City Property

(Beyond Pesticides, March 27, 2015) Portland, Oregon is considering a ban on neonicotinoids, a class of insecticides linked to bee deaths, from use on city property. If the measure passes, Portland will join a long list of towns and communities, including Eugene (Oregon), Skagway (Alaska), and, in Washington State, Thurston County, Seattle, and Spokane. Under the proposed ordinance, […]

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06
Mar

Oregon Bans Four Bee-Killing Insecticides on Linden Trees

(Beyond Pesticides, March 6, 2015) Last Friday, Oregon enacted a new rule which bans the use of four types of bee-killing insecticides, including  imidacloprid, clothianidin, thiamethoxam and dinotefuran, regardless of application method on linden trees and other Tilia species. The four insecticides that are now illegal to spray on Tilia trees are all in the […]

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14
Jan

100+ Businesses Urge Obama Administration to Suspend Bee-Toxic Pesticides

(Beyond Pesticides, January 14, 2015)—More than 100 businesses, including Clif Bar, Nature’s Path, Organic Valley and Stonyfield, sent a letter to the White House yesterday urging it to immediately suspend pesticides linked to global bee declines in order to protect the nation’s food supply, environment and economy. The businesses, members of the American Sustainable Business […]

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01
Dec

Over 100 Scientists Call for Action on Bee-Toxic Pesticides

(Beyond Pesticides, November 26, 2014) Last week, over 100 scientists from diverse disciplines released a letter citing the growing body of scientific evidence that neonicotinoids and other systemic pesticides harm bees, and called on leaders of President Barack Obama’s Pollinator Health Task Force to quickly take action on pesticides to protect and promote healthy populations […]

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05
Nov

Pesticides Impair Bees’ Immune Function, Pure Pollen Diet Has Positive Effect

(Beyond Pesticides, November 5, 2014) New research from Pennsylvania State University reports that pesticides cause large changes in the expression of genes involved in detoxification, immunity and nutrition-sensing in bees, adding to previous research that has found that pesticides compromise bee immune function. This research also finds that bees with a diet of natural, high […]

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31
Oct

USDA To Provide Additional $4 million for Honey Bee Habitat, No Mention of Pesticides

(Beyond Pesticides, October 31, 2014) Without any mention of the role of pesticides in bee decline, or emphasis on organic practices to help pollinators, Agriculture Secretary Tom Vilsack announced Wednesday that more than $4 million in technical and financial assistance will be provided to help farmers and ranchers in the Midwest improve the health of […]

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20
Oct

EPA Finds Neonicotinoid Seed Treatments To Be of Little or No Benefit

(Beyond Pesticides, October 20, 2014) The U.S. Environmental Protection Agency released a report Thursday that soybean seed treatments with neonicotinoid insecticides provide little or no overall benefits in controlling insects or improving yield or quality in soybean production. While pesticide manufacturer Syngenta has petitioned EPA to raise the allowable levels of another systemic pesticide thiamethoxam on […]

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10
Sep

Emory University To Ban Neonicotinoids from Campus

(Beyond Pesticides, September 10, 2014) As bee and other pollinator populations continue to decline around the world, with clear evidence pointing to neonicotinoid pesticides as a prime cause, Emory University announced last week that it will be eliminating the use of this controversial class of chemicals from its campus, joining institutions and communities like University of […]

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09
Sep

Manufacturer Proposes Increase in Bee-Toxic Pesticide on Crops

(Beyond Pesticides, September 9, 2014) Multinational pesticide manufacturer Syngenta has petitioned the U.S. Environmental Protection Agency (EPA) to raise the allowable levels of a systemic pesticide on a number of crops. In certain cases, such as hay from wheat, the company is asking for a 400x increase in the tolerance level set by the federal agency. […]

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04
Sep

Canadian Beekeepers File Class Action Lawsuit Against Makers of Neonicotinoids

(Beyond Pesticides, September 4, 2014) Beekeepers in Ontario, Canada are tired of losing bees and have decided to take matters into their own hands by filing a class action lawsuit against two makers of neonicotinoids. According to The Globe and Mail, the lawsuit alleges that Syngenta and Bayer CropScience were negligent in the design, sale, […]

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11
Aug

Vermont Law School Becomes First BEE Protective Campus!

(Beyond Pesticides, August 11, 2014) Vermont Law School announced Friday that its campus is going neonicotinoid pesticide-free, making it the first higher-education campus in the country to earn official recognition from the BEE Protective Campaign, led by Beyond Pesticides and Center for Food Safety. The university joins an expanding list of communities across the country to […]

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25
Jul

Midwest Waterways Contaminated with Persistent Neonicotinoid Pesticides

(Beyond Pesticides, July 25, 2014) A new U.S. Geological Survey (USGS) study published yesterday found neonicotinoid pesticides persistent and prevalent in streams throughout the Midwestern United States. The study is the first to investigate the presence of neonicotinoids on a wide-scale level in the Midwest. While neonicotinoid use has increased throughout the country, the Midwest […]

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23
Jul

New Zealand To Increase Scrutiny of Bee-killing Pesticides, Denies “Neonic” Application

(Beyond Pesticides, July 23, 2014) New Zealand’s Environmental Protection Authority is stepping up its requirements for a higher level of scientific evidence regarding the safety and effects of neonicotinoids -pesticides linked to bee decline- before considering them for approval. Just last month, the Authority declined an application of thiamethoxam, a neonicotinoid, for use as a […]

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25
Jun

Scientists Call for Global Action with Release of “Worldwide Assessment” of Bee-Harming Pesticides

(Beyond Pesticides, June 25, 2014) Following last week’s celebration of “National Pollinator Week” and a presidential memorandum mandating federal action on bees, the first wide-scale scientific analysis has been released that links two classes of pesticides to declining bee populations. Twenty-nine scientists representing many disciplines reviewed over 800 peer-reviewed publications on the impacts of systemic pesticides, and are […]

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