Herbicide label

Undercover

Undercover (EPA 89168-54-89391) is a Group 27 mesotrione herbicide labeled for 11 crops. The label lists 41 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“This product is a systemic pre-emergence and post-emergence herbicide for selective contact and residual control of broadleaf weeds in labeled crops.”

— Undercover EPA label, Reg. No. 89168-54-89391

Undercover label facts

Product Undercover
EPA Reg. No. 89168-54-89391
Distributor Innvictis Crop Care LLC
Active ingredient mesotrione
MOA group 27

Crops on the Undercover label

Undercover is labeled for these 11 crops and uses, per the EPA label.

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Weeds on the Undercover label

The Undercover label names 54 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
amaranth, spiny
atriplex
buffalobur
carpetweed
carrot, wild
chickweed, common
cocklebur, common
galinsoga
hemp
horsenettle
horseweed
jimsonweed
kochia
lambsquarters, common
mallow, venice
mannagrass
morningglory, entireleaf
morningglory, ivyleaf
morningglory, pitted
mustard, wild
nightshade, black
nightshade, eastern black
nightshade, hairy
pigweed, redroot
pigweed, smooth
pigweed, tumble
pusley, florida
radish, wild
ragweed, common
ragweed, giant
sesbania, hemp
shepherd's-purse
sida, prickly
smartweed, ladysthumb
smartweed, pale
smartweed, pennsylvania
sunflower, annual
velvetleaf
waterhemp, common

Partial control

partial22

amaranth, palmer
signalgrass, broadleaf
buckwheat, wild
burcucumber
carrot, wild
cocklebur, common
crabgrass, large
dandelion
dock, curly
horsenettle
horseweed
knotweed, prostrate
kochia
morningglory, entireleaf
morningglory, ivyleaf
morningglory, pitted
nutsedge, yellow
pokeweed, common
ragweed, common
ragweed, giant
sunflower, annual
thistle, canada

Suppression

suppression3

bentgrass
sharp-point fluellin
toadrush

Controls with a tank-mix partner

needs partner4

burcucumber
dandelion
sida, prickly
thistle, canada

Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.

Undercover 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.

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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.

Undercover FAQ

What weeds does Undercover control?

The Undercover label names 54 weeds, including palmer amaranth, powell amaranth, spiny amaranth, atriplex, buffalobur, and carpetweed. Control varies by crop, rate, and timing.

What crops is Undercover labeled for?

Undercover is labeled for 11 crops and uses, including field corn, soybeans, sorghum, seed corn, and popcorn.

What is the active ingredient in Undercover? Is it a generic?

Undercover's active ingredient is mesotrione (MOA Group 27). 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 Undercover?

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.

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Can I tank-mix Undercover?

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.