Herbicide label

Willowood Mesotrione 4SC Herbicide Label

Willowood Mesotrione 4SC (EPA 87290-61) is a Group 27 mesotrione herbicide labeled for 10 crops. The label lists 43 controlled weeds, plus partial-control, suppression, and partner-control categories.

“Willowood Mesotrione 4SC is a systemic pre-emergence and post-emergence herbicide for selective contact and residual control of broadleaf weeds in field corn, seed corn, yellow popcorn, sweet corn, sorghum (grain and sweet), sugarcane and other listed crops.”

— Willowood Mesotrione 4SC EPA label, Reg. No. 87290-61

Willowood Mesotrione 4SC label facts

Crops on the Willowood Mesotrione 4SC label

Willowood Mesotrione 4SC is labeled for these 10 crops and uses, per the EPA label.

Weeds on the Willowood Mesotrione 4SC label

The Willowood Mesotrione 4SC label names 50 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 control43
  • amaranth, palmer
  • amaranth, powell
  • amaranth, spiny
  • atriplex
  • signalgrass, broadleaf
  • buffalobur
  • burcucumber
  • carpetweed
  • carrot, wild
  • chickweed, common
  • cocklebur, common
  • crabgrass, large
  • galinsoga
  • hemp
  • horsenettle
  • horseweed
  • jimsonweed
  • kochia
  • lambsquarters, common
  • mallow, venice
  • mannagrass
  • morningglory, entireleaf
  • morningglory, ivyleaf
  • morningglory, pitted
  • mustard, wild
  • nightshade, black
  • nightshade, eastern black
  • nightshade, hairy
  • pigweed, redroot
  • pigweed, smooth
  • pigweed, tumble
  • potatoes, volunteer
  • pusley, florida
  • ragweed, common
  • ragweed, giant
  • sesbania, hemp
  • sida, prickly
  • smartweed, ladysthumb
  • smartweed, pale
  • smartweed, pennsylvania
  • sunflower, annual
  • velvetleaf
  • waterhemp, common

Partial control

partial7
  • buckwheat, wild
  • dandelion
  • dock, curly
  • knotweed, prostrate
  • nutsedge, yellow
  • pokeweed, common
  • thistle, canada

Willowood Mesotrione 4SC 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.

Willowood Mesotrione 4SC FAQ

What weeds does Willowood Mesotrione 4SC control?

The Willowood Mesotrione 4SC label names 50 weeds, including palmer amaranth, powell amaranth, spiny amaranth, atriplex, broadleaf signalgrass, and buffalobur. Control varies by crop, rate, and timing.

What crops is Willowood Mesotrione 4SC labeled for?

Willowood Mesotrione 4SC is labeled for 10 crops and uses, including field corn, sorghum, seed corn, popcorn, and sweet corn.

What is the active ingredient in Willowood Mesotrione 4SC? Is it a generic?

Willowood Mesotrione 4SC's active ingredient is mesotrione (MOA Group 27). 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.