Herbicide label
Strelius II Herbicide Label
Strelius II (EPA 91234-50) is a Group 15 metolachlor herbicide labeled for 18 crops. The label lists 31 controlled weeds, plus partial-control, suppression, and partner-control categories.
Strelius II label facts
- Product Strelius II
- EPA Reg. No. 91234-50
- Registrant Atticus, LLC
- Active ingredient metolachlor
- MOA group 15
Crops on the Strelius II label
Strelius II is labeled for these 18 crops and uses, per the EPA label.
Weeds on the Strelius II label
The Strelius II label names 82 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 control31- amaranth, palmer
- amaranth, powell
- barnyardgrass, common
- carpetweed
- crabgrass, large
- crabgrass, smooth
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, millet
- foxtail, yellow
- galinsoga, hairy
- galinsoga, smallflower
- goosegrass
- nightshade, eastern black
- nutsedge, yellow
- panicum, fall
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- pusley, florida
- red rice
- ryegrass, italian
- signalgrass, broadleaf
- dayflower, benghal
- waterhemp, common
- witchgrass
Partial control
partial23- beggarweed, florida
- bentgrass
- bluegrass, annual
- bluegrass, kentucky
- bluegrass, roughstalk
- brome, california
- brome, downy
- cupgrass, woolly
- eclipta
- fine fescue
- rattail fescue
- fescue, tall
- johnsongrass, seedling
- millet, wild-proso
- nightshade, hairy
- orchardgrass
- panicum, texas
- purslane, common
- ryegrass, perennial
- sandbur, field
- sandbur, southern
- shattercane
- sorghum, volunteer
Controls with a tank-mix partner
needs partner28- bindweed, field
- cocklebur, common
- jimsonweed
- kochia
- lambsquarters
- morningglory
- mustard
- panicum, browntop
- ragweed, giant
- sida, prickly
- smartweed
- velvetleaf
- coffeeweed
- junglerice
- malva
- wild oats
- groundcherry
- mallow, venice
- mustard, wild
- sesbania, hemp
- stinging nettle
- spurge, annual
- sicklepod
- spurge, hyssop
- spurge, nodding
- spurge, prostrate
- spurge, spotted
- starbur, bristly
Strelius II 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.
Strelius II FAQ
What weeds does Strelius II control?
The Strelius II label names 82 weeds, including palmer amaranth, powell amaranth, common barnyardgrass, carpetweed, large crabgrass, and smooth crabgrass. Control varies by crop, rate, and timing.
What crops is Strelius II labeled for?
Strelius II is labeled for 18 crops and uses, including field corn, soybeans, cotton, sunflower, and potato.
What is the active ingredient in Strelius II? Is it a generic?
Strelius II'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.
Sources
Last updated 2026-09-30.