Herbicide label

Thistrol Herbicide Label

Thistrol (EPA 71368-5) is a Group 4 mcpb herbicide labeled for 2 crops. The label lists 6 controlled weeds, plus partial-control, suppression, and partner-control categories.

Thistrol label facts

Crops on the Thistrol label

Thistrol is labeled for these 2 crops and uses, per the EPA label.

Weeds on the Thistrol label

The Thistrol label names 21 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 control6
  • lambsquarters, common
  • morningglory
  • pigweed
  • smartweed
  • sowthistle
  • thistle, canada

Suppression

suppression1
  • bindweed, field

Controls with a tank-mix partner

needs partner14
  • cocklebur, common
  • purslane, common
  • ragweed, common
  • pepperweed, field
  • ragweed, giant
  • henbit
  • jimsonweed
  • marshelder
  • sida, prickly
  • shepherd's-purse
  • velvetleaf
  • mustard, wild
  • radish, wild
  • sunflower, wild

Thistrol 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.

Thistrol FAQ

What weeds does Thistrol control?

The Thistrol label names 21 weeds, including common lambsquarters, morningglory, pigweed, smartweed, sowthistle, and canada thistle. Control varies by crop, rate, and timing.

What crops is Thistrol labeled for?

Thistrol is labeled for 2 crops and uses, including field pea and mint.

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

Thistrol's active ingredient is mcpb (MOA Group 4). 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.