Herbicide label
Hamper II Herbicide Label
Hamper II (EPA 55467-19) is a Group 15 metolachlor herbicide labeled for 19 crops. The label lists 42 controlled weeds, plus partial-control, suppression, and partner-control categories.
“Hamper II Herbicide is a selective herbicide for use as a preplant surface-applied, preplant incorporated, or preemergence treatment in water or fluid fertilizer for control of most annual grasses and certain broadleaf weeds in labeled crops.”
Hamper II label facts
- Product Hamper II
- EPA Reg. No. 55467-19
- Registrant Tenkoz Inc
- Active ingredient metolachlor
- MOA group 15
Crops on the Hamper II label
Hamper II is labeled for these 19 crops and uses, per the EPA label.
Weeds on the Hamper II label
The Hamper 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 control42- amaranth, palmer
- amaranth, powell
- barnyardgrass, common
- bentgrass
- bluegrass, annual
- bluegrass, kentucky
- bluegrass, roughstalk
- brome, california
- brome, downy
- carpetweed
- crabgrass, large
- crabgrass, smooth
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- fine fescue
- rattail fescue
- fescue, tall
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, millet
- foxtail, yellow
- galinsoga, hairy
- galinsoga, smallflower
- goosegrass
- nightshade, eastern black
- nutsedge, yellow
- orchardgrass
- panicum, fall
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- pusley, florida
- red rice
- ryegrass, italian
- ryegrass, perennial
- signalgrass, broadleaf
- dayflower, benghal
- waterhemp, common
- witchgrass
Partial control
partial12- beggarweed, florida
- cupgrass, woolly
- eclipta
- johnsongrass, seedling
- millet, wild-proso
- nightshade, hairy
- panicum, texas
- purslane, common
- 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
- groundcherry
- junglerice
- mallow
- wild oats
- mallow, venice
- mustard, wild
- sesbania, hemp
- sicklepod
- spurge, annual
- stinging nettle
- spurge, hyssop
- spurge, nodding
- spurge, prostrate
- spurge, spotted
- starbur, bristly
Hamper 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.
Hamper II FAQ
What weeds does Hamper II control?
The Hamper II label names 82 weeds, including palmer amaranth, powell amaranth, common barnyardgrass, bentgrass, annual bluegrass, and kentucky bluegrass. Control varies by crop, rate, and timing.
What crops is Hamper II labeled for?
Hamper II is labeled for 19 crops and uses, including field corn, soybeans, cotton, sunflower, and potato.
What is the active ingredient in Hamper II? Is it a generic?
Hamper 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.