Herbicide label

Quinark EW

Quinark EW (EPA 91234-255) is a Group 14 carfentrazone-ethyl herbicide labeled for 40 crops. The label lists 100 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“Carfentrazone-ethyl is a contact herbicide.”

— Quinark EW EPA label, Reg. No. 91234-255

Quinark EW label facts

Product Quinark EW
EPA Reg. No. 91234-255
Registrant Atticus, LLC
Active ingredient carfentrazone-ethyl
MOA group 14

Crops on the Quinark EW label

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

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Weeds on the Quinark EW label

The Quinark EW label names 100 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 control100

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
curled dock
croton, woolly
dandelion, common
dayflower
devilsclaw
eclipta
eveningprimrose, cutleaf
fiddleneck
filaree, broadleaf
filaree, redstem
filaree, white
fleabane, annual
flixweed
gromwell, common
groundcherry, smooth
groundcherry, Wright's
groundsel, common
henbit
jimsonweed
kochia
lambsquarters
lambsquarters, common
miner's lettuce
prickly lettuce
mallow, common
mallow, venice
meadowfoam
morningglory
morningglory, entireleaf
morningglory, ivyleaf
morningglory, pitted
morningglory, scarlet
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
redmaids
rocket, london
sage, lanceleaf
sesbania, hemp
shepherd's-purse
smartweed, pennsylvania
smartweed, PA seedling
smartweeds, annual
sowthistle
sowthistle, annual
speedwell
speedwell, Virginia
spiderwort, tropical
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 partner22

amaranth, palmer
amaranth, spiny
anoda, spurred
buckwheat, wild
cocklebur, common
croton, woolly
devilsclaw
eveningprimrose, cutleaf
knotweed, prostrate
mallow, venice
mustard, blue
pennycress, field
pepperweed, greenflower
potato, volunteer
primrose, cutleaf
primrose, tumble
ragweed, common
ragweed, giant
sunflower, annual
sunflower, wild
tarweed, coast
waterhemp, common

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Quinark 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.

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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.

Quinark EW FAQ

What weeds does Quinark EW control?

The Quinark EW label names 100 weeds, including palmer amaranth, spiny amaranth, pigweed, spurred anoda, catchweed bedstraw, and field bindweed. Control varies by crop, rate, and timing.

What crops is Quinark EW labeled for?

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

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

Quinark 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.

What's the plant-back interval after Quinark EW?

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 Quinark EW?

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.