Herbicide label

Harness Xtra

Harness Xtra (EPA 524-480) is a Group 5 and 15 acetochlor and atrazine herbicide labeled for 5 crops. The label lists 42 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Harness Xtra label facts

Product Harness Xtra
EPA Reg. No. 524-480
Registrant Bayer CropScience
Active ingredient acetochlor and atrazine
MOA group 5 and 15

Crops on the Harness Xtra label

Harness Xtra is labeled for these 5 crops and uses, per the EPA label.

field corn
corn silage
seed corn
sweet corn
popcorn

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Weeds on the Harness Xtra label

The Harness Xtra label names 50 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 control42

barnyardgrass, common
panicum, browntop
crabgrass, smooth
panicum, fall
crabgrass, large
red rice
cupgrass, woolly
signalgrass, broadleaf
foxtail, giant
sprangletop, red
foxtail, green
foxtail, robust purple
foxtail, robust white
foxtail, yellow
volunteer wheat
wild oats
goosegrass
witchgrass
beggarweed, florida
carpetweed
cocklebur, common
galinsoga
mustard
nightshade, black
nightshade, hairy
pigweed
groundcherry, annual
purslane
groundcherry, cutleaf
pusley, florida
henbit
ragweed, common
sida, prickly
jimsonweed
kochia
smartweed, pennsylvania
ladysthumb
lambsquarters, common
velvetleaf
morning glory, annual
waterhemp, common
nutsedge, yellow

Partial control

partial8

johnsongrass, seedling
millet, wild-proso
panicum, texas
sandbur
shattercane
ragweed, giant
sicklepod
sunflower, annual

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Harness Xtra 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 and the rotational crop.

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

Harness Xtra FAQ

What weeds does Harness Xtra control?

The Harness Xtra label names 50 weeds, including common barnyardgrass, browntop panicum, smooth crabgrass, fall panicum, large crabgrass, and red rice. Control varies by crop, rate, and timing.

What crops is Harness Xtra labeled for?

Harness Xtra is labeled for 5 crops and uses, including field corn, corn silage, seed corn, sweet corn, and popcorn.

What is the active ingredient in Harness Xtra? Is it a generic?

Harness Xtra's active ingredient is acetochlor and atrazine (MOA Group 5 and 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 Harness Xtra?

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 Harness Xtra?

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.