Herbicide label

Stadia Herbicide Label

Stadia (EPA 91234-31) is a Group 2 halosulfuron-methyl herbicide labeled for 12 crops. The label lists 61 controlled weeds, plus partial-control, suppression, and partner-control categories.

Stadia label facts

Crops on the Stadia label

Stadia is labeled for these 12 crops and uses, per the EPA label.

Weeds on the Stadia label

The Stadia label names 68 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 control61
  • amaranth, spiny
  • barnyardgrass, common
  • bindweed, hedge
  • crownbeard, golden
  • cupgrass, woolly
  • foxtail, bristly
  • foxtail, giant
  • foxtail, green
  • foxtail, yellow
  • galinsoga
  • goosefoot
  • groundsel, common
  • horsenettle
  • horseweed
  • jimsonweed
  • johnsongrass
  • ladysthumb
  • millet, wild-proso
  • nightshade, black
  • oats
  • panicum, fall
  • panicum, texas
  • pigweed, smooth
  • quackgrass
  • ryegrass, italian
  • sandbur
  • shattercane
  • shepardspurse
  • signalgrass, broadleaf
  • sorghum almum
  • spurry, corn
  • thistle, canada
  • arrowhead, california
  • bulrush, ricefield
  • dayflower
  • eclipta
  • flatsedge, rice
  • jointvetch
  • ammannia, purple
  • sesbania, hemp
  • sida, prickly
  • umbrellaplant, smallflower
  • burcucumber
  • cocklebur, common
  • fleabane, philadelphia
  • kochia
  • lambsquarter, common
  • mallow, venice
  • milkweed, honeyvine
  • nutsedge, purple
  • nutsedge, yellow
  • passionflower, maypop
  • pigweed, redroot
  • pokeweed, common
  • ragweed, common
  • ragweed, giant
  • smartweed, pennsylvania
  • sunflower, annual
  • velvetleaf
  • mustard, wild
  • radish, wild

Suppression

suppression7
  • dogbane, hemp
  • horsetail
  • morningglory, ivyleaf
  • morningglory, tall
  • purslane
  • milkweed, common
  • morningglory

Stadia 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.

Stadia FAQ

What weeds does Stadia control?

The Stadia label names 68 weeds, including spiny amaranth, common barnyardgrass, hedge bindweed, golden crownbeard, woolly cupgrass, and bristly foxtail. Control varies by crop, rate, and timing.

What crops is Stadia labeled for?

Stadia is labeled for 12 crops and uses, including field corn, soybeans, cotton, sorghum, and rice.

What is the active ingredient in Stadia? Is it a generic?

Stadia's active ingredient is halosulfuron-methyl (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 2026-09-30.