Herbicide label
Parallel PCS Herbicide Label
Parallel PCS (EPA 66222-86) is a Group 15 metolachlor herbicide labeled for 10 crops. The label lists 25 controlled weeds, plus partial-control, suppression, and partner-control categories.
Parallel PCS label facts
- Product Parallel PCS
- EPA Reg. No. 66222-86
- Registrant Makhteshim Agan of North America, Inc. d/b/a ADAMA
- Active ingredient metolachlor
- MOA group 15
Crops on the Parallel PCS label
Parallel PCS is labeled for these 10 crops and uses, per the EPA label.
Weeds on the Parallel PCS label
The Parallel PCS label names 65 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 control25- barnyardgrass, common
- carpetweed
- crabgrass
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- cupgrass, woolly
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, robust
- foxtail, yellow
- galinsoga
- goosegrass
- foxtail, millet
- millet, wild-proso
- nightshade, eastern black
- nutsedge, yellow
- panicum, fall
- pigweed
- pusley, florida
- red rice
- signalgrass
- waterhemp, common
- witchgrass
Partial control
partial9- beggarweed, florida
- eclipta
- johnsongrass, seedling
- nightshade, hairy
- panicum, texas
- purslane, common
- sandbur
- shattercane
- sorghum, volunteer
Controls with a tank-mix partner
needs partner35- junglerice
- wild oats
- morning glory, annual
- groundcherry
- nightshade, hairy
- lambsquarters
- mallow
- mustard
- sida, prickly
- purslane
- ragweed, giant
- cocklebur, common
- coffeeweed
- spurge, spotted
- spurge, hyssop
- spurge, nodding
- spurge, prostrate
- panicum, texas
- sandbur, field
- johnsongrass, seedling
- kochia
- spurge, annual
- smartweed
- starbur, bristly
- sicklepod
- morningglory
- sesbania, hemp
- velvetleaf
- mallow, venice
- mustard, wild
- jimsonweed
- stinging nettle
- purslane, common
- bindweed, field
- goosegrass, DNA-resistant
Parallel PCS 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 PCS FAQ
What weeds does Parallel PCS control?
The Parallel PCS label names 65 weeds, including common barnyardgrass, carpetweed, crabgrass, crowfootgrass, prairie cupgrass, and southwestern cupgrass. Control varies by crop, rate, and timing.
What crops is Parallel PCS labeled for?
Parallel PCS is labeled for 10 crops and uses, including soybeans, cotton, potato, peanut, and sorghum.
What is the active ingredient in Parallel PCS? Is it a generic?
Parallel PCS'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.