Herbicide label
FIRSTSHOT SG Herbicide Label
FIRSTSHOT SG (EPA 279-9609) is a Group 2 thifensulfuron and tribenuron-methyl herbicide labeled for 10 crops. The label lists 46 controlled weeds, plus partial-control, suppression, and partner-control categories.
“FIRSTSHOT SG herbicide is absorbed primarily through the foliage of plants, rapidly inhibiting the growth of susceptible weeds.”
FIRSTSHOT SG label facts
- Product FIRSTSHOT SG
- EPA Reg. No. 279-9609
- Registrant FMC Corporation
- Active ingredient thifensulfuron and tribenuron-methyl
- MOA group 2
Crops on the FIRSTSHOT SG label
FIRSTSHOT SG is labeled for these 10 crops and uses, per the EPA label.
Weeds on the FIRSTSHOT SG label
The FIRSTSHOT SG label names 70 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 control46- chamomile, false
- mayweed, chamomile
- chickweed, common
- chickweed, field
- chickweed, stinking
- dock, broadleaf
- dock, curly
- falseflax, smallseed
- fiddleneck
- fiddleneck, tarweed
- filaree, redstem
- filaree, Texas
- flixweed
- groundsel, common
- knawel, annual
- knotweed, prostrate
- lambsquarters, common
- lambsquarters, narrowleaf
- lambsquarters, slimleaf
- lentil, volunteer
- miner's lettuce
- marshelder
- mustard, black
- mustard, blue
- mustard, Jim Hill
- mustard, purple
- mustard, tumble
- mustard, wild
- pea, volunteer
- pennycress, field
- pigweed, prostrate
- pigweed, redroot
- pineapple-weed
- radish, common
- redmaids
- rocket, london
- shepherd's-purse
- smartweed, green
- smartweed, pennsylvania
- sowthistle, annual
- spurry, corn
- sunflower, annual
- sunflower
- swinecress
- tansymustard
- wallflower, bushy
Partial control
partial10- bedstraw, catchweed
- eveningprimrose, cutleaf
- ladysthumb
- mallow, common
- mallow, little
- horseweed
- nightshade, cutleaf
- nightshade, hairy
- vetch
- vetch, hairy
Controls with a tank-mix partner
needs partner17- alligatorweed
- arrowhead, lanceleaf
- aster, narrowleaf
- hyssop
- juncus
- ludwigia, red
- spikerush
- cocklebur, common
- garlic, wild
- prickly lettuce
- horseweed
- ragweed, common
- radish, wild
- vetch
- vetch, hairy
- carolina geranium
- henbit
FIRSTSHOT SG 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.
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 and the rotational crop.
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.
FIRSTSHOT SG FAQ
What weeds does FIRSTSHOT SG control?
The FIRSTSHOT SG label names 70 weeds, including false chamomile, chamomile mayweed, common chickweed, field chickweed, stinking chickweed, and broadleaf dock. Control varies by crop, rate, and timing.
What crops is FIRSTSHOT SG labeled for?
FIRSTSHOT SG is labeled for 10 crops and uses, including field corn, soybeans, wheat, cotton, and peanut.
What is the active ingredient in FIRSTSHOT SG? Is it a generic?
FIRSTSHOT SG's active ingredient is thifensulfuron and tribenuron-methyl (MOA Group 2). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Sources
Last updated 2026-09-30.