Herbicide-resistant weed biotypes in the Unites States, 1987-2012.
Figures are generally photos, graphs and static images that would be represented in traditional pdf publications.
Herbicide resistant weed biotypes documented in the United States between 1987 to 1999 (circles) and between 2000 to 2012 (triangles). Glyphosate-resistant cultivars reached 50% of US soybean acreage in 2000. This figure illustrates trends in herbicide resistant weeds before and after widespread adoption of glyphosate-resistant cultivars. Resistance to glyphosate (glycines) increased significantly after adoption of glyphosate-resistant crops, but the rate of resistance development to all other herbicide modes of action slowed significantly. Data from: Heap, I. The International Survey of Herbicide Resistant Weeds. Online. Internet. Monday, November 03, 2014 . Available www.weedscience.org.