Herbicide label
Surmise Herbicide Label
Surmise (EPA 42750-258) is a Group 10 glufosinate herbicide labeled for 8 crops. The label lists 124 controlled weeds, plus partial-control, suppression, and partner-control categories.
“SURMISE® is a contact herbicide and requires proper nozzles with uniform thorough spray coverage to achieve optimum weed control.”
Surmise label facts
- Product Surmise
- EPA Reg. No. 42750-258
- Registrant Albaugh, LLC
- Active ingredient glufosinate
- MOA group 10
Crops on the Surmise label
Surmise is labeled for these 8 crops and uses, per the EPA label.
Weeds on the Surmise label
The Surmise label names 134 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 control124- alfalfa
- amaranth, palmer
- 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
- bursage, woolyleaf
- volunteer canola
- carpetweed
- chickweed, common
- chickweed, mouseear
- clover, red
- cocklebur, common
- copperleaf, hophornbeam
- corn, volunteer
- cotton, volunteer
- crabgrass, large
- crabgrass, smooth
- croton, tropic
- croton, woolly
- cupgrass, woolly
- devilsclaw
- dogbane, hemp
- eclipta
- fleabane, annual
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, robust purple
- foxtail, yellow
- galinsoga, hairy
- galinsoga, smallflower
- geranium, cutleaf
- goosegrass
- groundcherry, cutleaf
- hempnettle
- horsenettle
- jimsonweed
- johnsongrass, seedling
- junglerice
- knotweed
- kochia
- ladysthumb
- lambsquarters, common
- mallow, common
- mallow, venice
- horseweed
- marshelder, annual
- black medic
- milkweed, honeyvine
- millet, proso volunteer
- millet, wild-proso
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, pitted
- morningglory, sharppod
- morningglory, smallflower
- morningglory, tall
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- nutsedge, purple
- nutsedge, yellow
- wild oats
- orchardgrass
- panicum, fall
- panicum, texas
- pennycress, field
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, spiny
- pigweed, tumble
- pokeweed, common
- puncturevine
- purslane, common
- pusley, florida
- quackgrass
- ragweed, common
- ragweed, giant
- red rice
- rice, volunteer
- sandbur, field
- senna, coffee
- sesbania, hemp
- shattercane
- shepherd's-purse
- sicklepod
- sida, prickly
- signalgrass, broadleaf
- smartweed, pennsylvania
- smellmelon
- sorghum, volunteer
- volunteer soybean
- sowthistle, annual
- sowthistle, perennial
- sprangletop
- spurge, prostrate
- spurge, spotted
- starbur, bristly
- stinkgrass
- sunflower, annual
- sunflower, prairie
- sunflower
- thistle, canada
- thistle, russian
- velvetleaf
- waterhemp, common
- volunteer wheat
- witchgrass
- wormwood, biennial
Suppression
suppression10- dandelion
- dock, smooth
- goldenrod, gray
- rhizome johnsongrass
- milkweed, common
- muhly, wirestem
- nightshade, silverleaf
- poinsettia, wild
- thistle, bull
- timothy
Surmise 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.
Surmise FAQ
What weeds does Surmise control?
The Surmise label names 134 weeds, including alfalfa, palmer amaranth, spurred anoda, barley, common barnyardgrass, and catchweed bedstraw. Control varies by crop, rate, and timing.
What crops is Surmise labeled for?
Surmise is labeled for 8 crops and uses, including field corn, soybeans, cotton, sugar beet, and canola.
What is the active ingredient in Surmise? Is it a generic?
Surmise'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.
Sources
Last updated 2026-09-30.