Herbicide label

Medal EC

Medal EC (EPA 100-816) is a Group 15 metolachlor herbicide labeled for 17 crops. The label lists 41 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Medal EC label facts

Product Medal EC
EPA Reg. No. 100-816
Registrant Syngenta Crop Protection, LLC
Active ingredient metolachlor
MOA group 15

Crops on the Medal EC label

Medal EC is labeled for these 17 crops and uses, per the EPA label.

field corn
soybean
cotton
sunflower
potato
peanut
sugar beet
sorghum
popcorn
seed corn
sweet corn
dry edible bean
field pea
cowpea
chickpea
lentil
safflower

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Weeds on the Medal EC label

The Medal EC label names 51 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 control41

amaranth, palmer
amaranth, powell
barnyardgrass, common
bentgrass, volunteer seedling
bluegrass, annual
bluegrass, doughstalk
bluegrass, kentucky volunteer seedling
brome, california
brome, downy
carpetweed
crabgrass, large
crabgrass, smooth
crowfootgrass
cupgrass, prairie
cupgrass, southwestern
fescue, fine volunteer seedling
rattail fescue
fescue, tall volunteer seedling
foxtail, bristly
foxtail, giant
foxtail, green
foxtail, millet
foxtail, yellow
galinsoga, hairy
galinsoga, smallflower
goosegrass
nightshade, eastern black
nutsedge, yellow
orchardgrass, volunteer seedling
panicum, fall
pigweed, redroot
pigweed, smooth
pigweed, tumble
red rice
ryegrass, italian
ryegrass, perennial volunteer seedling
signalgrass, broadleaf
sorghum, volunteer
spiderwort, tropical
waterhemp, common
witchgrass

Partial control

partial10

beggarweed, florida
cupgrass, woolly
eclipta
johnsongrass, seedling
millet, wild-proso
nightshade, hairy
panicum, texas
sandbur, field
sandbur, southern
shattercane

Suppression

suppression1

nutsedge, yellow

Controls with a tank-mix partner

needs partner1

ryegrass, italian

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Medal 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 and your soil texture.

Get the rate for your field: build a program and FieldMarshal cites the exact per-acre rate for your crop to 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, AZ, CA, CO, FL, GA, IA, ID, IL, KS, LA, MN, MO, MS, NC, ND, NE, NM, OK, OR, SC, SD, TN, TX, VA, WA, and WI.

Get the interval for your rotation: build a program and FieldMarshal cites the exact plant-back for your rotational crop to the label line.

Medal EC FAQ

What weeds does Medal EC control?

The Medal EC label names 51 weeds, including palmer amaranth, powell amaranth, common barnyardgrass, volunteer seedling bentgrass, annual bluegrass, and doughstalk bluegrass. Control varies by crop, rate, and timing.

What crops is Medal EC labeled for?

Medal EC is labeled for 17 crops and uses, including field corn, soybeans, cotton, sunflower, and potato.

What is the active ingredient in Medal EC? Is it a generic?

Medal 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.

What's the plant-back interval after Medal EC?

It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal cites the exact interval for your rotation to the label line, so you can verify it.

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Can I tank-mix Medal EC?

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 cites the condition on each, so you can verify it.