Herbicide label
DuPont GR2 Herbicide Label
DuPont GR2 (EPA 352-921) is a Group 2 pyroxsulam herbicide labeled for 4 crops. The label lists 42 controlled weeds, plus partial-control, suppression, and partner-control categories.
DuPont GR2 label facts
- Product DuPont GR2
- EPA Reg. No. 352-921
- Registrant Corteva Agriscience
- Active ingredient pyroxsulam
- MOA group 2
Crops on the DuPont GR2 label
DuPont GR2 is labeled for these 4 crops and uses, per the EPA label.
Weeds on the DuPont GR2 label
The DuPont GR2 label names 54 weeds and rates each by how the product handles it: full control, partial control, suppression, or control with a tank-mix partner. A weed can fall at more than one level, because control varies by crop, rate, and timing.
Controls
full control42- barnyardgrass, common
- blackgrass
- bluegrass, bulbous
- brome, japanese
- brome, ripgut
- cheat
- chess, hairy
- corn, volunteer
- darnel, persian
- foxtail, yellow
- wild oats
- ryegrass, italian
- windgrass, common
- bedstraw, catchweed
- bittercress, hairy
- burclover, spotted
- buttercup, smallflower
- volunteer canola
- chickweed, common
- chickweed, mouseear
- clover, white
- falseflax, smallseed
- fiddleneck
- flixweed
- carolina geranium
- gromwell, corn
- hempnettle, common
- lambsquarters, common
- mustard, black
- mustard, blue
- mustard, tumble
- mustard, wild
- mustard, wormseed
- pennycress, field
- pepperweed, virginia
- pigweed, redroot
- shepherd's-purse
- smartweed, annual
- tansymustard, pinnate
- thistle, russian
- vetch, hairy
- wallflower, bushy
Suppression
suppression12- foxtail barley
- brome, downy
- canarygrass, hood
- canarygrass, littleseed
- rattail fescue
- foxtail, green
- quackgrass
- rescuegrass
- buckwheat, wild
- coreopsis, plains
- evening-primrose, cutleaf
- henbit
DuPont GR2 rates and plant-back
The label answers both with a table, not a single number. Here is what drives each answer.
Application rate
Your rate depends on your crop.
Get the rate for your field: build a program and FieldMarshal gives you the exact per-acre rate for your crop from the label line.
Plant-back and rotation
Your interval depends on your application rate and the rotational crop.
Get the interval for your rotation: build a program and FieldMarshal gives you the exact plant-back for your rotational crop from the label line.
DuPont GR2 FAQ
What weeds does DuPont GR2 control?
The DuPont GR2 label names 54 weeds, including common barnyardgrass, blackgrass, bulbous bluegrass, japanese brome, ripgut brome, and cheat. Control varies by crop, rate, and timing.
What crops is DuPont GR2 labeled for?
DuPont GR2 is labeled for 4 crops and uses, including spring wheat, winter wheat, triticale, and durum wheat.
What is the active ingredient in DuPont GR2? Is it a generic?
DuPont GR2's active ingredient is pyroxsulam (MOA Group 2). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Sources
Last updated 2026-09-17.