Herbicide label

Helmquat 3SL

Helmquat 3SL (EPA 74530-48) is a Group 22 paraquat herbicide labeled for 28 crops. The label lists 22 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“HELMQUAT 3SL is a contact herbicide that desiccates all green plant tissue.”

— Helmquat 3SL EPA label, Reg. No. 74530-48

Helmquat 3SL label facts

Product Helmquat 3SL
EPA Reg. No. 74530-48
Registrant Helm Agro US, Inc.
Active ingredient paraquat
MOA group 22

Crops on the Helmquat 3SL label

Helmquat 3SL is labeled for these 28 crops and uses, per the EPA label.

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Weeds on the Helmquat 3SL label

The Helmquat 3SL label names 43 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

barley
bluegrass, annual
brome, downy
brome, rescue
chickweed
dogfennel
fiddleneck
foxtail
groundsel, common
henbit
maids, red
wild oats
pigweed
rocket, london
rye, volunteer
ryegrass, italian
shepherd's-purse
sowthistle
spikeweed
tansymustard
volunteer wheat
witchweed

Partial control

partial17

barnyardgrass, common
cocklebur, common
horseweed
knotweed
kochia
lambsquarters
prickly lettuce
mallow
morningglory
panicum, fall
ragweed, giant
sicklepod
sida, prickly
signalgrass, broadleaf
smartweed, pennsylvania
starbur, bristly
velvetleaf

Suppression

suppression4

bindweed, hedge
dandelion
sedge
thistle, canada

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Helmquat 3SL 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 AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, and WY.

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.

Helmquat 3SL FAQ

What weeds does Helmquat 3SL control?

The Helmquat 3SL label names 43 weeds, including barley, annual bluegrass, downy brome, rescue brome, chickweed, and dogfennel. Control varies by crop, rate, and timing.

What crops is Helmquat 3SL labeled for?

Helmquat 3SL is labeled for 28 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.

What is the active ingredient in Helmquat 3SL? Is it a generic?

Helmquat 3SL's active ingredient is paraquat (MOA Group 22). 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 Helmquat 3SL?

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 Helmquat 3SL?

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.