Estimated annual agricultural pesticide use for counties of the conterminous United States, 2008-12

Baker, Nancy T.; Stone, Wesley W.

doi:10.3133/ds907

Cited by 46 publications

(38 citation statements)

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Section: Introductionmentioning

confidence: 99%

“…Glyphosate has been the most used herbicide active ingredient in agriculture and forestry for almost 2 decades . Agricultural use of glyphosate in the United States alone was estimated to be near 130 000 metric tonnes in 2012 . The toxicity of glyphosate, as well as some of the most common glyphosate‐containing formulations, has been extensively reviewed in the past .…”

Section: Introductionmentioning

confidence: 99%

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Aquatic hazard assessment of MON 0818, a commercial mixture of alkylamine ethoxylates commonly used in glyphosate‐containing herbicide formulations. Part 2: Roles of sediment, temperature, and capacity for recovery following a pulsed exposure

Rodríguez‐Gil

Prosser

Hanta

et al. 2016

Enviro Toxic and Chemistry

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A series of toxicity tests with MON 0818, a commercial surfactant mixture of polyoxyethylene tallow amines, were performed: 1) in the presence of sediment for benthic invertebrates and fish: 2) to examine the recovery capacity of Daphnia magna and 4 primary producers after a pulsed (24-h) exposure; and 3) to examine the potential effect of increased water temperature on toxicity of MON 0818 to 2 cold-water fishes. In the presence of sediment, no acute (24-h) mortality was observed for 3 of the 5 species up to 10 mg L . The median effective concentrations for the other 2 species were significantly greater than for water only tests. The EC50 at 15 °C for Salvelinus alpinus was statistically lower than that at 10 °C. Latent effects of a 24-h exposure (1 mg L ) were observed for Rhabdocelis subcapitata and Chlorella vulgaris, as indicated by delayed growth during recovery phase; however, both cultures were able to recover, as indicated by a lack of changes in maximum absolute growth rates. No significant effects of a 24-h exposure to MON 0818 were observed for Oophila sp. (1.5 mg L ) or Lemna minor (100 mg L ). Latent mortality after a 24-h exposure to 5 mg L was observed during the recovery phase for D. magna; however, reproduction endpoints on surviving individuals were not altered. The results indicate that quick dissipation of MON 0818 in the presence of sediment can reduce the effects on exposed organisms, and that full recovery from 24-h exposures to concentrations of MON 0818 equal to, or greater than, those expected in the environment is possible. Environ Toxicol Chem 2017;36:512-521. © 2016 SETAC.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aquatic hazard assessment of MON 0818, a commercial mixture of alkylamine ethoxylates commonly used in glyphosate‐containing herbicide formulations. Part 2: Roles of sediment, temperature, and capacity for recovery following a pulsed exposure

Rodríguez‐Gil

Prosser

Hanta

et al. 2016

Enviro Toxic and Chemistry

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“…In addition, farmers and other operators have to implement measures to avoid the spreading of GR weeds in the neighborhood, which complicates some farm operations. GR weeds can easily spread from one field or area to another (Bagavathiannan et al 2013). Herbicide resistance can be transferred through the weed pollen, vegetative structures (rhizomes, tubers), and above all weed seeds.…”

Section: Farmer Attitudesmentioning

confidence: 99%

Genetically Modified Herbicide-Tolerant Crops, Weeds, and Herbicides: Overview and Impact

Bonny

2015

Environmental Management

154

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Genetically modified (GM) crops have been and continue to be a subject of controversy despite their rapid adoption by farmers where approved. For the last two decades, an important matter of debate has been their impact on pesticide use, particularly for herbicide-tolerant (HT) crops. Some claim that these crops bring about a decrease in herbicide use, while others claim the opposite. In fact, since 1996, most cultivated GMOs have been GMHT crops, which involve the use of an associated herbicide, generally glyphosate. In their very first years of adoption, HT crops often led to some decrease in herbicide use. However, the repetition of glyphosate-tolerant crops and of glyphosate only applications in the same fields without sufficient alternation and herbicide diversity has contributed to the appearance of glyphosate-resistant weeds. These weeds have resulted in a rise in the use of glyphosate and other herbicides. This article explores this situation and the impacts of herbicide-resistant weeds, using an interdisciplinary approach and drawing on recent data. The paper analyzes the spread of GMHT crops worldwide and their consequences on herbicide use in the USA in particular. It then addresses the global development of glyphosate-resistant weeds and their impact, particularly focusing on the USA. Finally, the last section explores how industry, farmers, and weed scientists are coping with the spread of resistant weeds. The concluding comments deal more widely with trends in GM crops.

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“…In particular, variables affecting fate and transport of contaminants or related to stream ecological condition were considered at the stream segment (Omernik, 1987; U.S. Environmental Protection Agency and the U.S. Geological Survey, 2005Survey, , 2012Gronberg, 2012;McKay and others, 2012;and U.S. Environmental Protection Agency, 2013), riparian reach (Kuchler, 1964;Homer and others, 2015), and watershed (U.S. Department of Agriculture, 1995; U.S. Department of Agriculture National Agricultural Statistics Service, 2014; Wolock, 1997Wolock, , 2003Nakagaki and others, 2007;Maupin and Ivahnenko, 2011;Nakagaki and others, 2012; U.S. Environmental Protection Agency and the U.S. Geological Survey, 2012;Prism Climate Group, 2013;Robertson and Saad, 2013;Nowell and others, 2014;Baker and Stone, 2015;and Homer and others, 2015) scales. The "Selection of Random Sites" and "Selection of Targeted Sites" sections describe the methods used to achieve the dualagency (USGS MSQA and EPA NRSA) goals.…”

Section: Site Selectionmentioning

confidence: 99%

Design and methods of the Midwest Stream Quality Assessment (MSQA), 2013

Garrett¹,

Frey²,

Metre³

et al. 2017

Open-File Report

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Estimated annual agricultural pesticide use for counties of the conterminous United States, 2008-12

Cited by 46 publications

References 0 publications

Aquatic hazard assessment of MON 0818, a commercial mixture of alkylamine ethoxylates commonly used in glyphosate‐containing herbicide formulations. Part 2: Roles of sediment, temperature, and capacity for recovery following a pulsed exposure

Aquatic hazard assessment of MON 0818, a commercial mixture of alkylamine ethoxylates commonly used in glyphosate‐containing herbicide formulations. Part 2: Roles of sediment, temperature, and capacity for recovery following a pulsed exposure

Genetically Modified Herbicide-Tolerant Crops, Weeds, and Herbicides: Overview and Impact

Design and methods of the Midwest Stream Quality Assessment (MSQA), 2013

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