Herbicide label
Headwin Herbicide Label
Headwin (EPA 83529-70) is a Group 5 and 15 metolachlor and metribuzin herbicide labeled for 2 crops. The label lists 67 controlled weeds, plus partial-control, suppression, and partner-control categories.
“Headwin is a selective herbicide for the control or suppression of certain grass, broadleaf and sedge weeds in potatoes, tomatoes, and soybeans.”
Headwin label facts
- Product Headwin
- EPA Reg. No. 83529-70
- Registrant Sharda USA LLC
- Active ingredient metolachlor and metribuzin
- MOA group 5 and 15
Crops on the Headwin label
Headwin is labeled for these 2 crops and uses, per the EPA label.
Weeds on the Headwin label
The Headwin label names 79 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 control67- amaranth, palmer
- buffalobur
- dandelion, common
- horseweed
- morningglory
- morningglory, pitted
- morningglory, smallflower
- ragweed, giant
- volunteer wheat
- anoda, spurred
- barley
- barnyardgrass, common
- bluegrass, annual
- carpetweed
- chickweed, common
- cocklebur, common
- copperleaf, hophornbeam
- crabgrass
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, millet
- foxtail, robust
- foxtail, yellow
- galinsoga
- goosegrass
- henbit
- jimsonweed
- junglerice
- knotweed
- kochia
- ladysthumb
- lambsquarters
- lambsquarters, common
- prickly lettuce
- mallow, venice
- mustard
- mustard, wild
- nightshade, black
- nutsedge, yellow
- panicum, fall
- pennycress, field
- pepperweed, virginia
- pigweed
- pigweed spp.
- purslane
- purslane, common
- pusley, florida
- ragweed, common
- redweed
- red rice
- sicklepod
- sida, prickly
- sida, prickly/teaweed
- signalgrass, broadleaf
- smartweed, pennsylvania
- spurge, spotted
- starbur, bristly
- sunflower, annual
- thistle, russian
- velvetleaf
- waterhemp, common
- witchgrass
- wheat, winter
Partial control
partial6- beggarweed, florida
- johnsongrass, seedling
- nightshade, hairy
- sandbur
- shattercane
- sorghum, volunteer
Suppression
suppression2- panicum, texas
- sandbur spp.
Controls with a tank-mix partner
needs partner4- sunflower, wild
- morningglory, ivyleaf
- morningglory, tall
- sunflower
Headwin 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.
Headwin FAQ
What weeds does Headwin control?
The Headwin label names 79 weeds, including palmer amaranth, buffalobur, common dandelion, horseweed, morningglory, and pitted morningglory. Control varies by crop, rate, and timing.
What crops is Headwin labeled for?
Headwin is labeled for 2 crops and uses, including soybeans and potato.
What is the active ingredient in Headwin? Is it a generic?
Headwin's active ingredient is metolachlor and metribuzin (MOA Group 5 and 15). 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.