Herbicide label
OxyStar 4L
OxyStar 4L (EPA 42750-199) is a Group 14 oxyfluorfen herbicide labeled for 6 crops. The label lists 95 controlled weeds, plus partial-control, suppression, and partner-control categories.
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“OxyStar® 4L herbicide is a selective herbicide for postemergence and preemergence residual weed control in labeled crops.”
OxyStar 4L label facts
- Product OxyStar 4L
- EPA Reg. No. 42750-199
- Registrant Albaugh, LLC
- Active ingredient oxyfluorfen
- MOA group 14
Crops on the OxyStar 4L label
OxyStar 4L is labeled for these 6 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 OxyStar 4L label
The OxyStar 4L label names 99 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 control95- amaranth, palmer
- amaranth, spiny
- barnyardgrass, common
- bedstraw, catchweed
- bluegrass, annual
- buckwheat, wild
- carpetweed
- carrot, wild
- mallow
- chickweed, common
- clover, hop
- clover, white
- cocklebur, common
- copperleaf, hophornbeam
- copperleaf, virginia
- crabgrass, large
- crabgrass, smooth
- croton, tropic
- cudweed
- daisy, English
- dandelion
- devilsclaw
- eclipta
- fiddleneck
- filaree, redstem
- filaree, whitestem
- fleabane, hairy
- foxtail, giant
- foxtail, green
- foxtail, yellow
- carolina geranium
- goosefoot, nettleleaf
- groundcherry
- groundsel, common
- henbit
- horseweed
- jimsonweed
- knotweed, prostrate
- kochia
- lambsquarters, common
- prickly lettuce
- rocket, london
- lovegrass species
- mallow, little
- mayweed
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, pitted
- morningglory, tall
- mullein, common
- mustard, black
- mustard, Jim Hill
- mustard, tumble
- mustard, wild
- nettle, burning
- nightshade, black
- nightshade, hairy
- oxtongue, bristly
- panicum, fall
- panicum, texas
- pepperweed, virginia
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- plantain, broadleaf
- poinsettia, wild
- pokeweed, common
- puncturevine
- purslane, common
- pusley, florida
- ragweed, common
- ragweed, giant
- sandbur, field
- sesbania, hemp
- shepherd's-purse
- sida, prickly
- signal grass, broadleaf
- smartweed, ladysthumb
- smartweed, pennsylvania
- sowthistle, annual
- spurge, prostrate
- spurge, spotted
- stinging nettle
- sunflower, annual
- velvetleaf
- witchgrass
- bluegrass, kentucky
- fescue
- orchardgrass
- ryegrass, annual
- ryegrass, italian
- timothy
- bentgrass, colonial
- bentgrass, creeping
Partial control
partial1- sicklepod
Suppression
suppression3- bentgrass
- brome, california
- ryegrass, perennial
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
OxyStar 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.
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 AZ, CA, ID, IN, MI, MT, NC, ND, NV, OR, SC, SD, UT, WA, and WI.
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.
OxyStar 4L FAQ
What weeds does OxyStar 4L control?
The OxyStar 4L label names 99 weeds, including palmer amaranth, spiny amaranth, common barnyardgrass, catchweed bedstraw, annual bluegrass, and wild buckwheat. Control varies by crop, rate, and timing.
What crops is OxyStar 4L labeled for?
OxyStar 4L is labeled for 6 crops and uses, including field corn, soybeans, cotton, mint, and fallow.
What is the active ingredient in OxyStar 4L? Is it a generic?
OxyStar 4L's active ingredient is oxyfluorfen (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 OxyStar 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.
Build a program →Can I tank-mix OxyStar 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.
Build a program →Plan in minutes, not hours.
Start with OxyStar 4L and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and checked against the label.
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Sources
Last updated 2026-07-14.