Herbicide label

Willowood Propanil 4EC

Willowood Propanil 4EC (EPA 87290-32) is a Group 5 propanil herbicide labeled for 1 crops. The label lists 22 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Willowood Propanil 4EC label facts

Crops on the Willowood Propanil 4EC label

Willowood Propanil 4EC is labeled for these 1 crops and uses, per the EPA label.

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Weeds on the Willowood Propanil 4EC label

The Willowood Propanil 4EC label names 22 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 control22
  • sedge, annual
  • barnyardgrass, common
  • beakrush
  • signalgrass, broadleaf
  • crabgrass
  • dock, curly
  • foxtail
  • goosegrass
  • cockspur, gulf
  • sesbania, hemp
  • hoorahgrass
  • junglerice
  • Mexicanweed
  • paragrass
  • pigweed, redroot
  • redweed
  • flatsedge, rice
  • umbrella plant, smallflower
  • spikerush
  • panicum, texas
  • watergrass
  • croton, woolly

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Willowood Propanil 4EC 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.

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Plant-back and rotation

Your interval depends on your application rate, the rotational crop, and your state, region, and rainfall — some intervals differ in AR, FL, LA, MO, MS, SC, TN, and TX.

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 Propanil 4EC FAQ

What weeds does Willowood Propanil 4EC control?

The Willowood Propanil 4EC label names 22 weeds, including annual sedge, common barnyardgrass, beakrush, broadleaf signalgrass, crabgrass, and curly dock. Control varies by crop, rate, and timing.

What crops is Willowood Propanil 4EC labeled for?

Willowood Propanil 4EC is labeled for 1 crops and uses, including rice.

What is the active ingredient in Willowood Propanil 4EC? Is it a generic?

Willowood Propanil 4EC's active ingredient is propanil (MOA Group 5). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

What's the plant-back interval after Willowood Propanil 4EC?

It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal gives you the exact interval for your rotation from the label line, so you can verify it.

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Can I tank-mix Willowood Propanil 4EC?

It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and gives the condition on each, so you can verify it.

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Sources

Last updated 2026-07-14.