Herbicide label
Medal II EC Herbicide Label
Medal II EC (EPA 100-818) is a Group 15 metolachlor herbicide labeled for 17 crops. The label lists 36 controlled weeds, plus partial-control, suppression, and partner-control categories.
Medal II EC label facts
- Product Medal II EC
- EPA Reg. No. 100-818
- Registrant Syngenta Crop Protection, LLC
- Active ingredient metolachlor
- MOA group 15
Crops on the Medal II EC label
Medal II EC is labeled for these 17 crops and uses, per the EPA label.
Weeds on the Medal II EC label
The Medal II EC label names 48 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 control36- amaranth, palmer
- amaranth, powell
- barnyardgrass, common
- bluegrass, annual
- bluegrass, doughstalk
- brome, california
- brome, downy
- carpetweed
- crabgrass, large
- crabgrass, smooth
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- rattail fescue
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, millet
- foxtail, yellow
- galinsoga, hairy
- galinsoga, smallflower
- goosegrass
- nightshade, eastern black
- nutsedge, yellow
- panicum, fall
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- pusley, florida
- red rice
- ryegrass, italian
- signalgrass, broadleaf
- dayflower, benghal
- waterhemp, common
- witchgrass
Partial control
partial12- beggarweed, florida
- cupgrass, woolly
- eclipta
- johnsongrass, seedling
- millet, wild-proso
- nightshade, hairy
- panicum, texas
- purslane, common
- sandbur, field
- sandbur, southern
- shattercane
- sorghum, volunteer
Medal II EC 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.
Medal II EC FAQ
What weeds does Medal II EC control?
The Medal II EC label names 48 weeds, including palmer amaranth, powell amaranth, common barnyardgrass, annual bluegrass, doughstalk bluegrass, and california brome. Control varies by crop, rate, and timing.
What crops is Medal II EC labeled for?
Medal II EC is labeled for 17 crops and uses, including field corn, soybeans, cotton, sunflower, and potato.
What is the active ingredient in Medal II EC? Is it a generic?
Medal II EC's active ingredient is metolachlor (MOA Group 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.