Herbicide label

Locksley

Locksley (EPA 2749-631) is a Group 14 carfentrazone-ethyl herbicide labeled for 42 crops. The label lists 63 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“Carfentrazone-ethyl is a contact herbicide.”

— Locksley EPA label, Reg. No. 2749-631

Locksley label facts

Crops on the Locksley label

Locksley is labeled for these 42 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 Locksley label

The Locksley label names 112 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 control63
  • amaranth, palmer
  • amaranth, spiny
  • anoda, spurred
  • arrowhead, annual
  • arrowhead, california
  • bedstraw, catchweed
  • buffalobur
  • bulrush, ricefield
  • carpetweed
  • mallow
  • cocklebur, common
  • copperleaf, hophornbeam
  • cotton, GMO varieties
  • cotton, volunteer
  • eclipta
  • fiddleneck
  • filaree, broadleaf
  • filaree, redstem
  • filaree, white
  • flixweed
  • groundcherry, cutleaf
  • groundcherry, smooth
  • groundcherry, wright's
  • water hyssop
  • jimsonweed
  • jointvetch, indian
  • jointvetch, northern
  • kochia
  • lambsquarters, common
  • prickly lettuce
  • mallow, common
  • mallow, venice
  • meadowfoam
  • morningglory, entireleaf
  • morningglory, ivyleaf
  • morningglory, pitted
  • morningglory, scarlet
  • nettle, burning
  • nightshade, american black
  • nightshade, black
  • nightshade, eastern black
  • nightshade, hairy
  • pennycress, field
  • pigweed, prostrate
  • pigweed, redroot
  • pigweed, smooth
  • pigweed, tumble
  • purslane, common
  • redmaids
  • redweed
  • rocket, london
  • sesbania, hemp
  • shepherd's-purse
  • smartweed, pennsylvania
  • speedwell, virginia
  • dayflower, benghal
  • spurge, prostrate
  • spurry, corn
  • tansymustard
  • thistle, russian
  • velvetleaf
  • wallflower, bushy
  • waterhemp, common

Partial control

partial5
  • bindweed, field
  • burclover
  • dayflower
  • sage, lanceleaf
  • sowthistle

Suppression

suppression10
  • alligatorweed
  • ammannia, purple
  • ammannia, redstem
  • burrweed, giant
  • dayflower, spreading
  • ducksalad
  • flatsedge, rice
  • texasweed
  • umbrellaplant, smallflower
  • water plantain

Controls with a tank-mix partner

needs partner35
  • bindweed, field
  • buckwheat, wild
  • buttercup, smallflower
  • chickweed
  • croton, woolly
  • dandelion, common
  • devilsclaw
  • dock, curled
  • eveningprimrose, cutleaf
  • fleabane, annual
  • gromwell, common
  • groundsel, common
  • hemp, wild
  • henbit
  • knotweed, prostrate
  • miner's lettuce
  • horseweed
  • mustard, blue
  • mustard, tansy
  • mustard, tumble
  • mustard, wild
  • pepperweed, greenflower
  • pigweed, triazine resistant
  • potato, volunteer
  • primrose, tumble
  • radish, wild
  • ragweed, common
  • ragweed, giant
  • sowthistle, annual
  • speedwell
  • star-of-bethlehem
  • sunflower, annual
  • sunflower, wild
  • tarweed, coast
  • thistles, annual and biennial

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

Locksley 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, the rotational crop, and your state, region, and rainfall — some intervals differ in CA.

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.

Locksley FAQ

What weeds does Locksley control?

The Locksley label names 112 weeds, including palmer amaranth, spiny amaranth, spurred anoda, annual arrowhead, california arrowhead, and catchweed bedstraw. Control varies by crop, rate, and timing.

What crops is Locksley labeled for?

Locksley is labeled for 42 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.

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

Locksley's active ingredient is carfentrazone-ethyl (MOA Group 14). 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 Locksley?

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 Locksley?

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.