Herbicide label

Permit Plus

Permit Plus (EPA 81880-26-10163) is a Group 2 halosulfuron-methyl and thifensulfuron herbicide labeled for 4 crops. The label lists 49 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“PERMIT PLUS can be absorbed through roots, shoots and foliage and is translocated within the plant.”

— Permit Plus EPA label, Reg. No. 81880-26-10163

Permit Plus label facts

Crops on the Permit Plus label

Permit Plus is labeled for these 4 crops and uses, per the EPA label.

Need the rate or timing for one of these? Filter every label by your crop, free.

Weeds on the Permit Plus label

The Permit Plus label names 68 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 control49
  • amaranth, spiny
  • arrowhead, California
  • chickweed, common
  • cocklebur, common
  • spurry, corn
  • groundcherry, cutleaf
  • dayflower
  • dayflower, spreading
  • deadnettle, purple
  • devilsclaw
  • ducksalad
  • eclipta
  • flatsedge, rice
  • fleabane, Philadelphia
  • galinsoga
  • galinsoga, hairy
  • crownbeard, golden
  • goosefoot
  • groundsel, common
  • horseweed
  • jimsonweed
  • jointvetch
  • kochia
  • ladysthumb
  • lambsquarters, common
  • prickly lettuce
  • mallow, common
  • mallow, venice
  • mayweed, chamomile
  • mustard, wild
  • nutsedge, yellow
  • nutsedge, purple
  • passionflower, maypop
  • pigweed, redroot
  • pigweed, smooth
  • plantain
  • pokeweed, common
  • radish, wild
  • ragweed, common
  • ragweed, giant
  • ammannia, purple
  • bulrush, ricefield
  • sesbania, hemp
  • smartweed, annual
  • sunflower
  • texasweed
  • velvetleaf
  • willowherb
  • yellowcress, creeping

Suppression

suppression18
  • alligatorweed
  • barnyardgrass, common
  • bindweed, hedge
  • burcucumber
  • henbit
  • horsetail
  • milkweed, common
  • milkweed, honeyvine
  • morningglory, ivyleaf
  • morningglory, tall
  • pennycress, field
  • pepperweed, field
  • pepperweed, virginia
  • purslane
  • shepherd's-purse
  • sida, prickly
  • smallflower umbrella sedge
  • smartweed, pennsylvania

Controls with a tank-mix partner

needs partner1
  • foxtail

Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.

Permit Plus 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.

Permit Plus FAQ

What weeds does Permit Plus control?

The Permit Plus label names 68 weeds, including spiny amaranth, california arrowhead, common chickweed, common cocklebur, corn spurry, and cutleaf groundcherry. Control varies by crop, rate, and timing.

What crops is Permit Plus labeled for?

Permit Plus is labeled for 4 crops and uses, including field corn, soybeans, rice, and fallow.

What is the active ingredient in Permit Plus? Is it a generic?

Permit Plus's active ingredient is halosulfuron-methyl and thifensulfuron (MOA Group 2). 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 Permit Plus?

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 Permit Plus?

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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Plan in minutes, not hours.

Start with Permit Plus and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and checked against the label.

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Sources

Last updated 2026-07-14.