Herbicide label
Shadow 3EC Herbicide Label
Shadow 3EC (EPA 66330-414) is a Group 1 clethodim herbicide labeled for 25 crops. The label lists 54 controlled weeds, plus partial-control, suppression, and partner-control categories.
Shadow 3EC label facts
- Product Shadow 3EC
- EPA Reg. No. 66330-414
- Registrant Arysta Lifescience North America LLC
- Active ingredient clethodim
- MOA group 1
Crops on the Shadow 3EC label
Shadow 3EC is labeled for these 25 crops and uses, per the EPA label.
Weeds on the Shadow 3EC label
The Shadow 3EC 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 control54- barley
- barnyardgrass, common
- bentgrass
- bermudagrass
- bluegrass, annual
- bluegrass, kentucky
- bluegrass, roughstalk
- brome, california
- brome, downy
- brome, ripgut
- canarygrass
- cheat
- crabgrass, hairy
- crabgrass, large
- crabgrass, smooth
- crabgrass, southern
- crowfootgrass
- cupgrass, southwestern
- cupgrass, woolly
- fescue, tall
- foxtail barley
- foxtail, giant
- foxtail, green
- foxtail, yellow
- goosegrass
- grain sorghum, volunteer
- rhizome johnsongrass
- johnsongrass, seedling
- junglerice
- foxtail, millet
- millet, wild-proso
- muhly, wirestem
- oats
- wild oats
- orchardgrass
- panicum, fall
- panicum, texas
- quackgrass
- rabbitsfootgrass
- red rice
- rye, volunteer
- ryegrass, hardy
- ryegrass, italian
- sandbur, field
- shattercane
- signalgrass, broadleaf
- sprangletop, amazon
- sprangletop, bearded
- sprangletop, mexican
- sprangletop, red
- stinkgrass
- volunteer wheat
- witchgrass
- corn, volunteer
Shadow 3EC 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.
Shadow 3EC FAQ
What weeds does Shadow 3EC control?
The Shadow 3EC label names 54 weeds, including barley, common barnyardgrass, bentgrass, bermudagrass, annual bluegrass, and kentucky bluegrass. Control varies by crop, rate, and timing.
What crops is Shadow 3EC labeled for?
Shadow 3EC is labeled for 25 crops and uses, including field corn, soybeans, cotton, sunflower, and potato.
What is the active ingredient in Shadow 3EC? Is it a generic?
Shadow 3EC's active ingredient is clethodim (MOA Group 1). 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.