Herbicide label

Purestand Herbicide Label

Purestand (EPA 71368-38) is a Group 2 metsulfuron-methyl herbicide labeled for 8 crops. The label lists 38 controlled weeds, plus partial-control, suppression, and partner-control categories.

“This product is absorbed through the foliage of broadleaf weeds, rapidly inhibiting their growth.”

— Purestand EPA label, Reg. No. 71368-38

Purestand label facts

Crops on the Purestand label

Purestand is labeled for these 8 crops and uses, per the EPA label.

Weeds on the Purestand label

The Purestand label names 51 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
  • buttercup, bur
  • catchfly, conical
  • chamomile, false
  • mayweed, chamomile
  • chickweed, common
  • coreopsis, plains
  • cowcockle
  • falseflax, smallseed
  • fiddleneck
  • filaree, broadleaf
  • flixweed
  • groundsel, common
  • henbit
  • kochia
  • lambsquarters, common
  • lambsquarters, slimleaf
  • miner's lettuce
  • prickly lettuce
  • mustard, blue
  • mustard, jim hill
  • mustard, purple
  • mustard, tansy
  • mustard, treacle
  • mustard, tumble
  • mustard, wild
  • pennycress, field
  • pigweed, redroot
  • pigweed, smooth
  • pigweed, tumble
  • purslane, common
  • shepherd's-purse
  • smartweed, green
  • smartweed, ladysthumb
  • smartweed, pale
  • speedwell, snow
  • sunflower
  • thistle, russian
  • waterpod

Suppression

suppression6
  • buckwheat, wild
  • gromwell, corn
  • knotweed, prostrate
  • sowthistle, annual
  • sunflower, annual
  • thistle, canada

Controls with a tank-mix partner

needs partner8
  • cocklebur, common
  • horseweed
  • sunflower, annual
  • sunflower, wild
  • wild oats
  • pigweed
  • velvetleaf
  • puncturevine

Purestand 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.

Purestand FAQ

What weeds does Purestand control?

The Purestand label names 51 weeds, including bur buttercup, conical catchfly, false chamomile, chamomile mayweed, common chickweed, and plains coreopsis. Control varies by crop, rate, and timing.

What crops is Purestand labeled for?

Purestand is labeled for 8 crops and uses, including wheat, barley, sorghum, spring wheat, and winter wheat.

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

Purestand's active ingredient is metsulfuron-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.