Herbicide label

Diuron 4L

Diuron 4L (EPA 9779-329) is a Group 5 diuron herbicide labeled for 14 crops. The label lists 49 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Diuron 4L label facts

Product Diuron 4L
EPA Reg. No. 9779-329
Registrant WinField Solutions, LLC
Active ingredient diuron
MOA group 5

Crops on the Diuron 4L label

Diuron 4L is labeled for these 14 crops and uses, per the EPA label.

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Weeds on the Diuron 4L label

The Diuron 4L label names 61 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

ageratum
bluegrass, annual
buckwheat, wild
chickweed
crabgrass
crowfootgrass
dayflower
dogfennel
rattail fescue
fiddleneck
foxtail
goosegrass
gromwell
groundcherry, annual
hawksbeard
horseweed
johnsongrass, seedling
knawel
kochia
kyllinga
lambsquarters
lettuce, wild
lovegrass, annual
marigold
mustard, tansy
mustard, wild
orchardgrass
paintbrush, flora's
pennycress, field
peppergrass
pigweed
pineapple-weed
pokeweed, common
purslane
rabbit tobacco
radish, wild
ragweed, giant
ricegrass
ryegrass, annual
sandbur
shepherd's-purse
smartweed, annual
sowthistle, annual
speedwell, corn
sprangletop, red
spurry, corn
velvetgrass
velvetleaf
vernalgrass, annual sweet

Partial control

partial11

cocklebur, common
guineagrass
horsenettle
maidencane
morning glory, annual
nutsedge
pangolagrass
quackgrass
sesbania
sicklepod
sida, prickly

Suppression

suppression2

rattail fescue
windgrass, common

Controls with a tank-mix partner

needs partner1

johnsongrass, seedling

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Diuron 4L 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 and your soil texture.

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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.

Diuron 4L FAQ

What weeds does Diuron 4L control?

The Diuron 4L label names 61 weeds, including ageratum, annual bluegrass, wild buckwheat, chickweed, crabgrass, and crowfootgrass. Control varies by crop, rate, and timing.

What crops is Diuron 4L labeled for?

Diuron 4L is labeled for 14 crops and uses, including field corn, cotton, barley, sorghum, and alfalfa.

What is the active ingredient in Diuron 4L? Is it a generic?

Diuron 4L's active ingredient is diuron (MOA Group 5). 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 Diuron 4L?

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 Diuron 4L?

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.