Herbicide label

Usha 6 CA Herbicide Label

Usha 6 CA (EPA 83529-147) is a Group 4 2,4-d herbicide labeled for 13 crops. The label lists 45 controlled weeds, plus partial-control, suppression, and partner-control categories.

Usha 6 CA label facts

Crops on the Usha 6 CA label

Usha 6 CA is labeled for these 13 crops and uses, per the EPA label.

Weeds on the Usha 6 CA label

The Usha 6 CA label names 48 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 control45
  • alligatorweed
  • boxelder
  • buckhorn
  • thistle, bull
  • bullrush
  • burdock
  • buttercup
  • carpetweed
  • catnip
  • chickweed
  • chicory
  • cocklebur, common
  • curly indigo
  • geranium
  • goldenrod
  • hemp
  • henbit
  • honeysuckle
  • indigo
  • ironweed
  • jimsonweed
  • lambsquarters
  • locoweed
  • morningglory
  • mullein, common
  • mustard
  • parrot feather
  • pennywort
  • poison ivy
  • poorjoe
  • puncturevine
  • purslane
  • ragweed, giant
  • rush
  • shepherd's-purse
  • sowthistle
  • needles, spanish
  • sunflower
  • thistles
  • water primrose
  • waterlily
  • wild lettuce
  • radish, wild
  • witchweed
  • waterplantain

Partial control

partial3
  • deep-rooted perennials
  • hard-to-control species
  • less susceptible weeds

Usha 6 CA 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.

Usha 6 CA FAQ

What weeds does Usha 6 CA control?

The Usha 6 CA label names 48 weeds, including alligatorweed, boxelder, buckhorn, bull thistle, bullrush, and burdock. Control varies by crop, rate, and timing.

What crops is Usha 6 CA labeled for?

Usha 6 CA is labeled for 13 crops and uses, including field corn, wheat, barley, sorghum, and rice.

What is the active ingredient in Usha 6 CA? Is it a generic?

Usha 6 CA's active ingredient is 2,4-d (MOA Group 4). 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.