Herbicide label
Smackdown Herbicide Label
Smackdown (EPA 34704-1094) is a Group 2, 4, and 15 acetochlor, clopyralid, and flumetsulam herbicide labeled for 2 crops. The label lists 64 controlled weeds, plus partial-control, suppression, and partner-control categories.
“This product is a preemergence herbicide for which spray adjuvants have little or no influence on performance.”
Smackdown label facts
- Product Smackdown
- EPA Reg. No. 34704-1094
- Registrant Loveland Products, Inc.
- Active ingredient acetochlor, clopyralid, and flumetsulam
- MOA group 2, 4, and 15
Crops on the Smackdown label
Smackdown is labeled for these 2 crops and uses, per the EPA label.
Weeds on the Smackdown label
The Smackdown label names 64 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 control64- barnyardgrass, common
- crabgrass
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- cupgrass, woolly
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, robust (purple, white)
- foxtail, yellow
- goosegrass
- johnsongrass, seedling
- foxtail, millet
- millet, wild-proso
- nutsedge, yellow
- panicum, browntop
- panicum, fall
- panicum, texas
- red rice
- sandbur, field
- shattercane
- signalgrass, broadleaf
- sprangletop, red
- witchgrass
- amaranth, palmer
- beggarweed, florida
- buckwheat, wild
- carpetweed
- chickweed, common
- clover, red
- cocklebur, common
- galinsoga
- henbit
- horseweed
- jimsonweed
- kochia
- ladysthumb
- lambsquarters, common
- mallow, venice
- morningglory, ivyleaf
- morningglory, tall
- mustard, wild
- nightshade, black
- pigweed, redroot
- pigweed, smooth
- poinsettia, wild
- puncturevine
- purslane, common
- pusley, florida
- ragweed, common
- ragweed, giant
- shepherd's-purse
- sicklepod
- sida, prickly
- smartweed, pennsylvania
- spurge, nodding
- spurge, prostrate
- spurge, spotted
- sunflower, annual
- thistle, canada
- velvetleaf
- waterhemp, common
- wormwood, biennial
Smackdown 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.
Smackdown FAQ
What weeds does Smackdown control?
The Smackdown label names 64 weeds, including common barnyardgrass, crabgrass, crowfootgrass, prairie cupgrass, southwestern cupgrass, and woolly cupgrass. Control varies by crop, rate, and timing.
What crops is Smackdown labeled for?
Smackdown is labeled for 2 crops and uses, including field corn and corn silage.
What is the active ingredient in Smackdown? Is it a generic?
Smackdown's active ingredient is acetochlor, clopyralid, and flumetsulam (MOA Group 2, 4, 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.