Herbicide label

SURMISE 5

SURMISE 5 (EPA 42750-401) is a Group 10 glufosinate herbicide labeled for 8 crops. The label lists 115 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

SURMISE 5 label facts

Crops on the SURMISE 5 label

SURMISE 5 is labeled for these 8 crops and uses, per the EPA label.

Need the rate or timing for one of these? Filter every label by your crop, free.

Weeds on the SURMISE 5 label

The SURMISE 5 label names 127 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 control115
  • alfalfa
  • amaranth, palmer
  • amaranth, tall waterhemp
  • amaranth, waterhemp common
  • anoda, spurred
  • barley
  • barnyardgrass, common
  • bedstraw, catchweed
  • beggarweed, florida
  • bermudagrass
  • bindweed, field
  • bindweed, hedge
  • bluegrass, annual
  • bluegrass, kentucky
  • blueweed, texas
  • bromegrass, smooth
  • buckwheat, wild
  • buffalobur
  • burcucumber
  • burdock
  • burgrass, woollyleaf
  • volunteer canola
  • carpetweed
  • chickweed, common
  • chickweed, mouse-ear
  • clover, red
  • cocklebur, common
  • copperleaf, hophornbeam
  • corn, volunteer
  • cotton, volunteer
  • croton, prostrate
  • croton, woolly
  • cupgrass, woolly
  • devil's claw
  • dogbane, hemp
  • eclipta
  • panicum, fall
  • filaree, redstem
  • fleabane, annual
  • foxtail, bristly
  • foxtail, giant
  • foxtail, green
  • foxtail, purple
  • foxtail, yellow
  • galinsoga, hairy
  • galinsoga, smallflower
  • carolina geranium
  • goosegrass
  • groundcherry, cutleaf
  • hempnettle
  • horseweed, carolina
  • jimsonweed
  • johnsongrass, seedling
  • kochia
  • knotweed
  • ladysthumb
  • lambsquarters, common
  • mallow, common
  • mallow, venice
  • marshelder, annual
  • milkweed, honeyvine
  • morningglory, entireleaf
  • morningglory, ivyleaf
  • morningglory, pitted
  • morningglory, sharp-pod
  • morningglory, smallflower
  • morningglory, tall
  • mustard, wild
  • nightshade, black
  • nightshade, eastern black
  • nightshade, hairy
  • nutsedge, purple
  • nutsedge, yellow
  • wild oats
  • orchardgrass
  • panicum, texas
  • pennycress, field
  • pigweed, redroot
  • pigweed, smooth
  • pigweed, spiny
  • pigweed, tumble
  • pigweed, waterhemp
  • pokeweed, common
  • puncturevine
  • purslane, common
  • quackgrass
  • ragweed, common
  • ragweed, giant
  • red rice
  • rice, volunteer
  • senna, coffee
  • sesbania, hemp
  • shattercane
  • shepherd's-purse
  • sicklepod
  • sida, prickly
  • signalgrass, broadleaf
  • smallmelon
  • smartweed, pennsylvania
  • sorghum, volunteer
  • volunteer soybean
  • spangletop
  • spurge, prostrate
  • spurge, spotted
  • starbur, bristly
  • stinkgrass
  • sunflower, annual
  • sunflower, prairie
  • sunflower, volunteer
  • thistle, canada
  • sowthistle, perennial
  • velvetleaf
  • volunteer wheat
  • witchgrass
  • wormwood, biennial

Suppression

suppression12
  • dandelion
  • dock, smooth
  • goldenrod, gray
  • rhizome johnsongrass
  • horseweed
  • milkweed, common
  • muhly, wirestem
  • nightshade, silverleaf
  • poinsettia, wild
  • sandbur, field
  • thistle, bull
  • timothy

Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.

SURMISE 5 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, the rotational crop, and your state, region, and rainfall — some intervals differ in CA.

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.

SURMISE 5 FAQ

What weeds does SURMISE 5 control?

The SURMISE 5 label names 127 weeds, including alfalfa, palmer amaranth, tall waterhemp amaranth, waterhemp common amaranth, spurred anoda, and barley. Control varies by crop, rate, and timing.

What crops is SURMISE 5 labeled for?

SURMISE 5 is labeled for 8 crops and uses, including field corn, soybeans, cotton, sugar beet, and canola.

What is the active ingredient in SURMISE 5? Is it a generic?

SURMISE 5's active ingredient is glufosinate (MOA Group 10). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

What's the plant-back interval after SURMISE 5?

It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal gives you the exact interval for your rotation from the label line, so you can verify it.

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Can I tank-mix SURMISE 5?

It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and gives the condition on each, so you can verify it.

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Sources

Last updated 2026-07-14.