Search results for “atrazine”:
According to all reports, dicamba volatilization, drift, and crop damage has markedly worsened in 2020 in Iowa, as many expected it would. Bob Hartzler, a widely respected, experienced weed scientist at Iowa State, has published a July 8, 2020 blog entitled “Dicamba 2020: What went wrong in Iowa?” For the story of how we got […]
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DTN staff reporter Emily Unglesbee has ably covered the dicamba-drift crisis over the past couple of years. Her latest is a detailed, three-part series on Palmer amaranth, “possibly the most aggressive weed American farmers have ever faced” (Unglesbee, 2019a). Palmer amaranth is so scary because of its “spectacular reproductive abilities” and it’s extreme adaptability. This […]
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In an experiment conducted in Missouri, researchers have identified Palmer amaranth that is resistant to six herbicides. Amaranthus palmerii is a one tough weed. When full grown, at its base, stalks can match the circumference of a man’s wrist. One plant can set over 400,000 seeds. It has a long history of herbicide resistance, and […]
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The Trump Administration started the process of re-negotiating NAFTA this week. One wonders if the rapidly spreading populations of U.S. born and bred glyphosate-resistant waterhemp in Ontario will be on the agenda. The first Canadian glyphosate-resistant (GR) waterhemp was discovered in 2014 in Lambton County, Ontario. In 2015, GR waterhemp was confirmed in 40 fields […]
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Andrew Kniss is a professor at the University Wyoming whose research is partially funded by the pesticide and biotech industry. My research over the last ~15 years has been substantially funded by organic food companies, and foundations that hope to support bio-based innovation in agriculture that leads to healthier food and a lighter environmental footprint. (For […]
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The conclusion of a provocative, March 2017 commentary in JAMA Pediatrics is short and to the point – “…processed food is an experiment that failed.” The author, Dr. Robert Lustig, is a pediatric endocrinologist at U.C. San Francisco. He has carried out multiple studies on the impact of diet on children’s growth, development, and metabolic diseases. […]
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Virtually all Americans who enjoy at least a few servings of fresh fruits and vegetables are exposed on a daily basis to one to four residues of neonicotinoid (nicotinyl for short) insecticides. That’s why they are in me and you most every day, except of course for the days we purchase and consume organic produce. […]
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The February 2017 issue of Environmental Health Perspectives contains an important open access research paper on the human health effects of neonicotinoid insecticides (nicotinyls for short). The work was carried out by a team led by Dr. Melissa Perry of George Washington University. The issue also includes an accompanying news report by Nate Seltenrich. Dr. […]
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Rate of Application Metrics Measures of the Extent of Use Limits of “Pounds Applied” Measures of Total Use by Type of Pesticide Measures of Total Pesticide Use Measuring Other Impacts Associated With Pesticide Use The most common metric of “pesticide use” is the pounds of active ingredient applied in a given year on an acre […]
The U.S. Geological Survey recently published a comprehensive overview of pesticides in the nation’s streams and ground water. Water samples were collected at 186 streams in 51 study areas across the country and pesticides in ground water were monitored in over 5,000 wells. The findings confirm earlier studies showing that pesticides have become ubiquitous contaminants […]
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