Herbicide label
Parallel Herbicide Label
Parallel (EPA 66222-87) is a Group 15 metolachlor herbicide labeled for 11 crops. The label lists 26 controlled weeds, plus partial-control, suppression, and partner-control categories.
Parallel label facts
- Product Parallel
- EPA Reg. No. 66222-87
- Registrant Makhteshim Agan of North America, Inc. d/b/a ADAMA
- Active ingredient metolachlor
- MOA group 15
Crops on the Parallel label
Parallel is labeled for these 11 crops and uses, per the EPA label.
Weeds on the Parallel label
The Parallel 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 control26- barnyardgrass, common
- foxtail, bristly
- carpetweed
- waterhemp, common
- crabgrass
- crowfootgrass
- nightshade, eastern black
- panicum, fall
- pusley, florida
- foxtail, millet
- galinsoga
- foxtail, giant
- goosegrass
- foxtail, green
- pigweed
- cupgrass, prairie
- red rice
- foxtail, robust purple
- foxtail, robust white
- signalgrass
- cupgrass, southwestern
- millet, wild-proso
- witchgrass
- cupgrass, woolly
- foxtail, yellow
- nutsedge, yellow
Partial control
partial9- purslane, common
- eclipta
- beggarweed, florida
- nightshade, hairy
- sandbur
- johnsongrass, seedling
- shattercane
- panicum, texas
- sorghum, volunteer
Controls with a tank-mix partner
needs partner33- panicum, browntop
- cocklebur, common
- purslane, common
- nightshade, hairy
- lambsquarters
- morningglory
- ragweed, giant
- smartweed
- velvetleaf
- jimsonweed
- kochia
- mustard
- sida, prickly
- junglerice
- wild oats
- morning glory, annual
- groundcherry
- mallow
- coffeeweed
- spurge, spotted
- spurge, hyssop
- spurge, nodding
- spurge, prostrate
- panicum, texas
- sandbur, field
- johnsongrass, seedling
- spurge, annual
- sesbania, hemp
- mallow, venice
- mustard, wild
- stinging nettle
- goosegrass, DNA-resistant
- bindweed, field
Parallel 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.
Parallel FAQ
What weeds does Parallel control?
The Parallel label names 64 weeds, including common barnyardgrass, bristly foxtail, carpetweed, waterhemp, crabgrass, and crowfootgrass. Control varies by crop, rate, and timing.
What crops is Parallel labeled for?
Parallel is labeled for 11 crops and uses, including field corn, soybeans, cotton, potato, and peanut.
What is the active ingredient in Parallel? Is it a generic?
Parallel'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.