Cited by 1,890Pesticide and Herbicide Environmental StudiesWeed Control and Herbicide ApplicationsPesticide Exposure and Toxicity

Trends in glyphosate herbicide use in the United States and globally

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Benbrook, Charles M.·2016·Environmental Sciences Europe

Abstract

BACKGROUND: Accurate pesticide use data are essential when studying the environmental and public health impacts of pesticide use. Since the mid-1990s, significant changes have occurred in when and how glyphosate herbicides are applied, and there has been a dramatic increase in the total volume applied. METHODS: Data on glyphosate applications were collected from multiple sources and integrated into a dataset spanning agricultural, non-agricultural, and total glyphosate use from 1974-2014 in the United States, and from 1994-2014 globally. RESULTS: Since 1974 in the U.S., over 1.6 billion kilograms of glyphosate active ingredient have been applied, or 19 % of estimated global use of glyphosate (8.6 billion kilograms). Globally, glyphosate use has risen almost 15-fold since so-called "Roundup Ready," genetically engineered glyphosate-tolerant crops were introduced in 1996. Two-thirds of the total volume of glyphosate applied in the U.S. from 1974 to 2014 has been sprayed in just the last 10 years. The corresponding share globally is 72 %. In 2014, farmers sprayed enough glyphosate to apply ~1.0 kg/ha (0.8 pound/acre) on every hectare of U.S.-cultivated cropland and nearly 0.53 kg/ha (0.47 pounds/acre) on all cropland worldwide. CONCLUSIONS: Genetically engineered herbicide-tolerant crops now account for about 56 % of global glyphosate use. In the U.S., no pesticide has come remotely close to such intensive and widespread use. This is likely the case globally, but published global pesticide use data are sparse. Glyphosate will likely remain the most widely applied pesticide worldwide for years to come, and interest will grow in quantifying ecological and human health impacts. Accurate, accessible time-series data on glyphosate use will accelerate research progress.

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  1. [27]Benbrook CM Trends in glyphosate herbicide use in the united states and globally: Supporting data Environ Sci Eur 2016 PMC5044953 27752438

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Authors
Benbrook, C. M.
Corresponding author
Benbrook, Charles M.
Venue
Environmental Sciences Europe
Published
2016-02-02
Volume
28
Issue
1
Pages
3-3
ISSN
  • 2190-4715 (ISSN-L)
  • 2190-4707
OpenAlex
W2255447065
Cited by
1,890
References
56
Citations by year
2026: 163 · 2025: 177 · 2024: 191 · 2023: 264 · 2022: 234 · 2021: 235 · 2020: 227 · 2019: 166 · 2018: 127 · 2017: 77 · 2016: 26 · 2015: 1
FWCI
71.97
Type
journal article
Language
en
Open access
Locations
  • Environmental Sciences Europe (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Ceres Trust
Topics
  • Physical Sciences › Environmental Science › Pollution › Pesticide and Herbicide Environmental Studies
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Weed Control and Herbicide Applications
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Pesticide Exposure and Toxicity
Keywords
glyphosate, Roundup Ready crops, herbicide-tolerant crops, genetically modified crops, agricultural pesticide application

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