Herbicide label

Helmet MTZ Herbicide Label

Helmet MTZ (EPA 74530-98) is a Group 5 and 15 metolachlor and metribuzin herbicide labeled for 2 crops. The label lists 41 controlled weeds, plus partial-control, suppression, and partner-control categories.

“Helmet MTZ is a selective herbicide for the control/suppression of annual grasses and selected broadleaf weeds in soybeans.”

— Helmet MTZ EPA label, Reg. No. 74530-98

Helmet MTZ label facts

Crops on the Helmet MTZ label

Helmet MTZ is labeled for these 2 crops and uses, per the EPA label.

Weeds on the Helmet MTZ label

The Helmet MTZ label names 56 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 control41
  • anoda, spurred
  • barnyardgrass, common
  • beggarweed, florida
  • bluegrass, annual
  • carpetweed
  • cocklebur, common
  • copperleaf, hophornbeam
  • crabgrass
  • crowfootgrass
  • foxtail
  • galinsoga
  • goosegrass
  • jimsonweed
  • johnsongrass, seedling
  • junglerice
  • knotweed
  • lambsquarters
  • mallow, venice
  • mustard, wild
  • nightshade, black
  • nutsedge, yellow
  • panicum, fall
  • pigweed
  • purslane
  • pusley, florida
  • ragweed, common
  • redweed
  • red rice
  • sesbania
  • shepherd's-purse
  • sicklepod
  • sida, prickly
  • signalgrass, broadleaf
  • smartweed
  • spurge, spotted
  • starbur, bristly
  • sunflower
  • thistle, russian
  • velvetleaf
  • witchgrass
  • buffalobur

Suppression

suppression1
  • kochia

Controls with a tank-mix partner

needs partner15
  • barley
  • chickweed, common
  • dandelion, common
  • henbit
  • horseweed
  • ladysthumb
  • prickly lettuce
  • morningglory
  • pennycress, field
  • ragweed, giant
  • sandbur, field
  • shattercane
  • waterhemp, common
  • volunteer wheat
  • kochia

Helmet MTZ 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.

Helmet MTZ FAQ

What weeds does Helmet MTZ control?

The Helmet MTZ label names 56 weeds, including spurred anoda, common barnyardgrass, florida beggarweed, annual bluegrass, carpetweed, and common cocklebur. Control varies by crop, rate, and timing.

What crops is Helmet MTZ labeled for?

Helmet MTZ is labeled for 2 crops and uses, including soybeans and potato.

What is the active ingredient in Helmet MTZ? Is it a generic?

Helmet MTZ's active ingredient is metolachlor and metribuzin (MOA Group 5 and 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.