Herbicide label

Suffice Herbicide Label

Suffice (EPA 83529-174) is a Group 1 quizalofop-p-ethyl herbicide labeled for 1 crops. The label lists 17 controlled weeds, plus partial-control, suppression, and partner-control categories.

“Suffice is a selective post-emergence herbicide that controls emerged annual and perennial grasses in Quizalofop-p-ethyl resistant rice.”

— Suffice EPA label, Reg. No. 83529-174

Suffice label facts

Crops on the Suffice label

Suffice is labeled for these 1 crops and uses, per the EPA label.

Weeds on the Suffice label

The Suffice label names 17 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 control17
  • barnyardgrass, common
  • corn, volunteer
  • crabgrass, large
  • crabgrass, smooth
  • goosegrass
  • johnsongrass, seedling
  • junglerice
  • panicum, fall
  • panicum, texas
  • red rice
  • rice, volunteer
  • shattercane
  • signalgrass, broadleaf
  • sprangletop
  • witchgrass
  • bermudagrass
  • rhizome johnsongrass

Suffice 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.

Suffice FAQ

What weeds does Suffice control?

The Suffice label names 17 weeds, including common barnyardgrass, volunteer corn, large crabgrass, smooth crabgrass, goosegrass, and seedling johnsongrass. Control varies by crop, rate, and timing.

What crops is Suffice labeled for?

Suffice is labeled for 1 crops and uses, including rice.

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

Suffice's active ingredient is quizalofop-p-ethyl (MOA Group 1). 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.