Herbicide label

SHARK EW Herbicide Label

SHARK EW (EPA 279-3242) is a Group 14 carfentrazone-ethyl herbicide labeled for 40 crops. The label lists 96 controlled weeds, plus partial-control, suppression, and partner-control categories.

Download the label PDF

“SHARK EW Herbicide is a contact PPO herbicide.”

— SHARK EW EPA label, Reg. No. 279-3242

SHARK EW label facts

Crops on the SHARK EW label

SHARK EW is labeled for these 40 crops and uses, per the EPA label.

Weeds on the SHARK EW label

The SHARK EW label names 97 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 control96
  • amaranth, palmer
  • amaranth, spiny
  • pigweed
  • anoda, spurred
  • bedstraw, catchweed
  • bindweed, field
  • buckwheat, wild
  • buffalobur
  • burclover
  • buttercup, smallflower
  • carpetweed
  • mallow
  • chickweed
  • cocklebur, common
  • copperleaf, hophornbeam
  • spurry, corn
  • cotton, GMO varieties
  • cotton, volunteer
  • croton, woolly
  • curled dock
  • dayflower
  • devilsclaw
  • eclipta
  • eveningprimrose, cutleaf
  • fiddleneck
  • filaree, broadleaf
  • filaree, redstem
  • filaree, white
  • fleabane, annual
  • flixweed
  • groundcherry, smooth
  • groundcherry, Wright's
  • groundsel, common
  • henbit
  • jimsonweed
  • kochia
  • lambsquarters
  • lambsquarters, common
  • miner's lettuce
  • prickly lettuce
  • mallow, common
  • mallow, venice
  • meadowfoam
  • morningglory, entireleaf
  • morningglory, ivyleaf
  • morningglory, pitted
  • morningglory, scarlet
  • morningglory, spp.
  • mustard, blue
  • mustard, tansy
  • mustard, tumble
  • mustard, wild
  • nettle, burning
  • nightshade, American black
  • nightshade, black
  • nightshade, eastern black
  • nightshade, hairy
  • pennycress, field
  • pepperweed, greenflower
  • pigweed, prostrate
  • pigweed, redroot
  • pigweed, smooth
  • pigweed, triazine resistant
  • pigweed, tumble
  • potato, volunteer
  • primrose, cutleaf
  • primrose, tumble
  • knotweed, prostrate
  • purslane, common
  • radish, wild
  • ragweed, common
  • ragweed, giant
  • rocket, london
  • sage, lanceleaf
  • sesbania, hemp
  • shepherd's-purse
  • smartweed, pennsylvania
  • smartweeds, annual
  • sowthistle
  • sowthistle, annual
  • speedwell
  • speedwell, Virginia
  • dayflower, benghal
  • spurge, prostrate
  • star-of-Bethlehem
  • sunflower, annual
  • sunflower, wild
  • tansymustard
  • tarweed, coast
  • thistle, russian
  • thistles, annual and biennial
  • velvetleaf
  • wallflower, bushy
  • waterhemp, common
  • waterhemp, spp.
  • wild hemp

Controls with a tank-mix partner

needs partner1
  • gromwell, common

Weed indexes featuring this label

SHARK EW 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.

SHARK EW FAQ

What weeds does SHARK EW control?

The SHARK EW label names 97 weeds, including palmer amaranth, spiny amaranth, pigweed, spurred anoda, catchweed bedstraw, and field bindweed. Control varies by crop, rate, and timing.

What crops is SHARK EW labeled for?

SHARK EW is labeled for 40 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.

What is the active ingredient in SHARK EW? Is it a generic?

SHARK EW'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.

Sources

Last updated 2026-09-30.