Herbicide label
Keystone NXT Herbicide Label
Keystone NXT (EPA 62719-671) is a Group 5 and 15 acetochlor and atrazine herbicide labeled for 5 crops. The label lists 41 controlled weeds, plus partial-control, suppression, and partner-control categories.
“Keystone NXT is a preemergence herbicide for which spray adjuvants have little or no effect on performance.”
Keystone NXT label facts
- Product Keystone NXT
- EPA Reg. No. 62719-671
- Registrant Corteva Agriscience
- Active ingredient acetochlor and atrazine
- MOA group 5 and 15
Crops on the Keystone NXT label
Keystone NXT is labeled for these 5 crops and uses, per the EPA label.
Weeds on the Keystone NXT label
The Keystone NXT label names 53 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 control41- barnyardgrass, common
- beggarweed, florida
- carpetweed
- cocklebur, common
- crabgrass spp.
- crowfootgrass
- cupgrass, southwestern
- foxtail, giant
- foxtail, green
- foxtail, robust (purple, white)
- foxtail, yellow
- galinsoga
- goosegrass
- groundcherry, annual
- groundcherry, cutleaf
- henbit
- jimsonweed
- kochia
- lambsquarters, common
- foxtail, millet
- morningglory
- mustard spp.
- nightshade, black
- nightshade, hairy
- nutsedge, yellow
- wild oats
- panicum, browntop
- panicum, fall
- pigweed spp.
- purslane, common
- pusley, florida
- ragweed, common
- red rice
- sida, prickly
- signalgrass, broadleaf
- smartweed
- sprangletop, red
- velvetleaf
- waterhemp, common
- volunteer wheat
- witchgrass
Partial control
partial9- cupgrass, woolly
- johnsongrass, seedling
- millet, wild-proso
- panicum, texas
- ragweed, giant
- sandbur, field
- shattercane
- sicklepod
- sunflower, annual
Controls with a tank-mix partner
needs partner5- lambsquarters
- pigweed
- ragweed, giant
- sunflower, annual
- crabgrass
Keystone NXT 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.
Keystone NXT FAQ
What weeds does Keystone NXT control?
The Keystone NXT label names 53 weeds, including common barnyardgrass, florida beggarweed, carpetweed, common cocklebur, crabgrass spp., and crowfootgrass. Control varies by crop, rate, and timing.
What crops is Keystone NXT labeled for?
Keystone NXT is labeled for 5 crops and uses, including field corn, corn silage, seed corn, sweet corn, and popcorn.
What is the active ingredient in Keystone NXT? Is it a generic?
Keystone NXT's active ingredient is acetochlor and atrazine (MOA Group 5 and 15). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Sources
Last updated 2026-09-30.