Herbicide label

Pendi H2O Herbicide Label

Pendi H2O (EPA 93809-18) is a Group 3 pendimethalin herbicide labeled for 25 crops. The label lists 63 controlled weeds, plus partial-control, suppression, and partner-control categories.

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“Pendi H2O is a meristematic inhibitor that interferes with the plant's cellular division or mitosis. This and/or other products with the meristematic inhibiting mode of action may not effectively control naturally occurring biotypes of some of the weeds listed on this label.”

— Pendi H2O EPA label, Reg. No. 93809-18

Pendi H2O label facts

Crops on the Pendi H2O label

Pendi H2O is labeled for these 25 crops and uses, per the EPA label.

Weeds on the Pendi H2O label

The Pendi H2O label names 69 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 control63
  • amaranth, palmer
  • barnyardgrass, common
  • bluegrass, annual
  • brome, downy
  • brome, japanese
  • bugloss, small
  • canarygrass
  • carpetweed
  • cheat
  • chess, hairy
  • chickweed, common
  • crabgrass
  • crowfootgrass
  • cupgrass, woolly
  • dodder
  • fescue, volunteer
  • fiddleneck
  • fingergrass, swollen
  • foxtail, giant
  • foxtail, green
  • foxtail, yellow
  • goatgrass, jointed
  • goosegrass
  • guineagrass
  • henbit
  • johnsongrass, seedling
  • junglerice
  • knotweed, prostrate
  • kochia
  • lady's thumb
  • lambsquarters, common
  • lambsquarters, slimleaf
  • lovegrass species
  • millet, wild-proso
  • mustard, black
  • stinging nettle
  • wild oats
  • panicum, browntop
  • panicum, fall
  • panicum, texas
  • pigweed
  • puncturevine
  • purslane
  • pusley, florida
  • red rice
  • rocket, london
  • ryegrass, annual
  • ryegrass, italian
  • ryegrass, volunteer
  • sandbur, field
  • shattercane
  • shepherd's-purse
  • signalgrass
  • smartweed, pennsylvania
  • sprangletop
  • sprangletop, mexican
  • sprangletop, red
  • spurge, annual
  • velvetleaf
  • watergrass, early
  • watergrass, late
  • waterhemp, common
  • witchgrass

Partial control

partial2
  • nightshade, black
  • nightshade, hairy

Suppression

suppression4
  • morningglory
  • ammannia, purple
  • sedge, smallflower umbrella
  • thistle, russian

Weed indexes featuring this label

Pendi H2O 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.

Pendi H2O FAQ

What weeds does Pendi H2O control?

The Pendi H2O label names 69 weeds, including palmer amaranth, common barnyardgrass, annual bluegrass, downy brome, japanese brome, and small bugloss. Control varies by crop, rate, and timing.

What crops is Pendi H2O labeled for?

Pendi H2O is labeled for 25 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.

What is the active ingredient in Pendi H2O? Is it a generic?

Pendi H2O's active ingredient is pendimethalin (MOA Group 3). 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.