Herbicide label
ZONE 4F
ZONE 4F (EPA 74530-63) is a Group 14 sulfentrazone herbicide labeled for 8 crops. The label lists 87 controlled weeds, plus partial-control, suppression, and partner-control categories.
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“The active ingredient in ZONE 4F herbicide is a potent inhibitor of the enzyme Protoporpyrinogen Oxidase IX (PPO IX) which is essential for the formation of chlorophyll. Inhibition of PPO IX enzyme results in the liberation of singlet oxygen (0) that, in turn, disrupts cellular membranes and causes cellular injury and leakage.”
ZONE 4F label facts
- Product ZONE 4F
- EPA Reg. No. 74530-63
- Registrant Helm Agro US, Inc.
- Active ingredient sulfentrazone
- MOA group 14
Crops on the ZONE 4F label
ZONE 4F is labeled for these 8 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 ZONE 4F label
The ZONE 4F label names 87 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 control87- amaranth, livid
- amaranth, palmer
- amaranth, powell
- amaranth, spiny
- amaranth, spleen
- anoda, spurred
- bedstraw, catchweed
- buckwheat, wild
- cockle, white
- carpetweed
- chickweed, common
- copperleaf, hophornbeam
- copperleaf, virginia
- crabgrass, large
- crabgrass, smooth
- crabgrass, southern
- croton, tropic
- crownbeard, golden
- cupgrass, woolly
- cyperus, hedgehog
- daisy, american
- devilsclaw
- dock, curly
- eclipta
- filaree, redstem
- flixweed
- galinsoga, hairy
- goosegrass
- groundcherry, clammy
- groundcherry, cutleaf
- groundsel, common
- henbit
- jimsonweed
- knotweed, prostrate
- kochia
- ladysthumb
- lambsquarters, common
- miner's lettuce
- mallow, common
- mayweed, chamomile
- milkweed, honeyvine
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, palmleaf
- morningglory, purple
- morningglory, red
- morningglory, scarlet
- morningglory, smallflower
- morningglory, tall
- mustard, tumble
- nightshade, black
- nightshade, eastern black
- nutsedge, purple
- nutsedge, yellow
- orchardgrass
- panicum, fall
- pansy, field
- pigweed, redroot
- pigweed, smooth
- pineapple-weed
- plantain, blackseed
- plantain, narrow-leaved
- poinsettia, wild
- poorjoe
- porophyllum
- purslane, common
- redmaids
- redweed
- sedge, annual
- senna, coffee
- shepherd's-purse
- sida, prickly
- sida, southern
- signalgrass, broadleaf
- smartweed, pennsylvania
- smellmelon
- sowthistle
- spurry, corn
- starbur, bristly
- stinkgrass
- tassleflower, red
- thistle, russian
- toadflax, yellow
- waterhemp, common
- waterprimrose, winged
- witchgrass
- woodsorrel, yellow
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
ZONE 4F 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 CO, CT, IA, ID, IL, IN, KS, MA, MD, ME, MI, MN, MO, MT, ND, NE, NH, NY, OH, OR, PA, RI, SD, TN, UT, 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.
ZONE 4F FAQ
What weeds does ZONE 4F control?
The ZONE 4F label names 87 weeds, including livid amaranth, palmer amaranth, powell amaranth, spiny amaranth, spleen amaranth, and spurred anoda. Control varies by crop, rate, and timing.
What crops is ZONE 4F labeled for?
ZONE 4F is labeled for 8 crops and uses, including soybeans, sunflower, fallow, sugarcane, and cowpea.
What is the active ingredient in ZONE 4F? Is it a generic?
ZONE 4F's active ingredient is sulfentrazone (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 ZONE 4F?
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 ZONE 4F?
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 ZONE 4F 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.