Table 7 Changes in selected U.S. EPA glyphosate tolerance levels (ppm)
From: Trends in glyphosate herbicide use in the United States and globally
1993 | 1999 | 2012 | 2015 | |
|---|---|---|---|---|
Soybeans | ||||
Grain | 20 | 20 | 20 | 40 |
Hay | 15 | 200 | 200 | 100 |
Forage | 15 | 100 | 100 | 100 |
Maize | ||||
Corn grain | 0.1 | 0.1 | 5 | 5 |
Corn stover | NT | NT | 6 | 100 |
Sweetcorn | 0.2 | 0.2 | 3.5 | 3.5 |
Oats | ||||
Grain | 0.1 | 0.1 | 0.1 | 30 |
Wheat | ||||
Grain | 0.1 | 5 | 5 | 30 |
Straw | 0.1 | 85 | 85 | 100 |
Edible beans | 0.2 | 0.2 | 5 | 5 |
Alfalfa | ||||
Dry hay | 0.2 | 200 | 200 | 400 |
Silage | 0.2 | 75 | 75 | 400 |