Herbicide label
Shafen Star
Shafen Star (EPA 83529-25) is a Group 14 fomesafen herbicide labeled for 4 crops. The label lists 60 controlled weeds, plus partial-control, suppression, and partner-control categories.
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“Shafen Star is a selective herbicide which may be applied pre-plant, pre-emergence or post-emergence for control or suppression of broadleaf weeds, grasses, and sedges in cotton, dry beans, potatoes, snap beans, and soybeans.”
Shafen Star label facts
- Product Shafen Star
- EPA Reg. No. 83529-25
- Registrant Sharda USA LLC
- Active ingredient fomesafen
- MOA group 14
Crops on the Shafen Star label
Shafen Star is labeled for these 4 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 Shafen Star label
The Shafen Star label names 72 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 control60- amaranth, palmer
- amaranth, spiny
- anoda, spurred
- balloonvine
- barnyardgrass, common
- carpetweed
- citron (wild watermelon)
- cocklebur, common
- copperleaf, hophornbeam
- copperleaf, virginia
- crabgrass
- crotalaria, showy
- croton, tropic
- cucumber, volunteer
- eclipta
- foxtail, giant
- foxtail, green
- foxtail, yellow
- galinsoga spp.
- goosegrass
- groundcherry, cutleaf
- hemp
- jimsonweed
- johnsongrass, seedling
- ladysthumb
- lambsquarters, common
- mallow, venice
- mexicanweed
- morningglory, cypressvine
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, palmleaf
- morningglory, pitted
- morningglory, purple moonflower
- morningglory, red
- morningglory, smallflower
- morningglory, tall
- mustard, wild
- nightshade, black
- nightshade, eastern black
- panicum, fall
- panicum, texas
- pigweed, redroot
- pigweed, smooth
- poinsettia, wild
- purslane, common
- pusley, florida
- ragweed, common
- ragweed, giant
- rocket, yellow
- sesbania, hemp
- sida, prickly
- signalgrass, broadleaf
- smartweed, pennsylvania
- smellmelon
- starbur, bristly
- sunflower, annual
- velvetleaf
- waterhemp, common
- witchweed
Partial control
partial2- nightshade, hairy
- nutsedge, yellow
Suppression
suppression10- bindweed, field
- bindweed, hedge
- horsenettle
- milkweed, climbing
- milkweed, honeyvine
- redweed
- sicklepod
- spurge, prostrate
- spurge, spotted
- trumpet creeper
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Shafen Star 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 AL, AR, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, and WV.
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.
Shafen Star FAQ
What weeds does Shafen Star control?
The Shafen Star label names 72 weeds, including palmer amaranth, spiny amaranth, spurred anoda, balloonvine, common barnyardgrass, and carpetweed. Control varies by crop, rate, and timing.
What crops is Shafen Star labeled for?
Shafen Star is labeled for 4 crops and uses, including soybeans, cotton, potato, and dry edible bean.
What is the active ingredient in Shafen Star? Is it a generic?
Shafen Star's active ingredient is fomesafen (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 Shafen Star?
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 Shafen Star?
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 Shafen Star 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.