Herbicide label

Vail ATZ Herbicide Label

Vail ATZ (EPA 89167-9-91395) is a Group 5 and 15 atrazine and metolachlor herbicide labeled for 4 crops. The label lists 38 controlled weeds, plus partial-control, suppression, and partner-control categories.

“This product is a selective herbicide that can be applied before planting, before or after emergence (see directions) for control of most annual grasses and broadleaf weeds in Field corn, popcorn and Sweet corn.”

— Vail ATZ EPA label, Reg. No. 89167-9-91395

Vail ATZ label facts

Crops on the Vail ATZ label

Vail ATZ is labeled for these 4 crops and uses, per the EPA label.

Weeds on the Vail ATZ label

The Vail ATZ label names 49 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 control38
  • barnyardgrass, common
  • carpetweed
  • chickweed
  • cocklebur, common
  • crabgrass
  • crowfootgrass
  • cupgrass, prairie
  • cupgrass, southwestern
  • flixweed
  • foxtail, giant
  • foxtail, green
  • foxtail, yellow
  • galinsoga
  • goosegrass
  • henbit
  • jimsonweed
  • kochia
  • lambsquarters
  • foxtail, millet
  • morningglory
  • mustard
  • nightshade, black
  • nutsedge, yellow
  • panicum, browntop
  • panicum, fall
  • pigweed
  • purslane, common
  • pusley, florida
  • ragweed, common
  • ragweed, giant
  • red rice
  • sida, prickly
  • signalgrass
  • smartweed
  • velvetleaf
  • waterhemp, common
  • wheat, winter
  • witchgrass

Partial control

partial6
  • cupgrass, woolly
  • johnsongrass, seedling
  • sandbur
  • shattercane
  • sicklepod
  • sorghum, volunteer

Controls with a tank-mix partner

needs partner5
  • alfalfa
  • bromegrass species
  • orchardgrass
  • cereal rye
  • timothy

Vail ATZ 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.

Vail ATZ FAQ

What weeds does Vail ATZ control?

The Vail ATZ label names 49 weeds, including common barnyardgrass, carpetweed, chickweed, common cocklebur, crabgrass, and crowfootgrass. Control varies by crop, rate, and timing.

What crops is Vail ATZ labeled for?

Vail ATZ is labeled for 4 crops and uses, including field corn, popcorn, sweet corn, and corn silage.

What is the active ingredient in Vail ATZ? Is it a generic?

Vail ATZ's active ingredient is atrazine and metolachlor (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.