Herbicide label
Cornerstone Plus Herbicide Label
Cornerstone Plus (EPA 33270-18-1381) is a Group 9 glyphosate herbicide labeled for 44 crops. The label lists 175 controlled weeds, plus partial-control, suppression, and partner-control categories.
“This product is a postemergence, systemic, non-selective herbicide and will control many annual weeds, perennial weeds, woody brush and trees.”
Cornerstone Plus label facts
- Product Cornerstone Plus
- EPA Reg. No. 33270-18-1381
- Distributor WinField Solutions, LLC
- Active ingredient glyphosate
- MOA group 9
Crops on the Cornerstone Plus label
Cornerstone Plus is labeled for these 44 crops and uses, per the EPA label.
- field corn
- soybean
- wheat
- cotton
- sunflower
- potato
- peanut
- sugar beet
- canola
- barley
- sorghum
- rice
- alfalfa
- buckwheat
- pearl millet
- proso millet
- oats
- cereal rye
- triticale
- wild rice
- seed corn
- corn silage
- sweet corn
- popcorn
- fallow
- mint
- flax
- mustard
- rapeseed
- safflower
- sesame
- sugarcane
- chickpea
- lentil
- dry edible bean
- field pea
- cowpea
- radish
- sweet potato
- turnip
- spinach
- clover
- grass seed
- durum wheat
Weeds on the Cornerstone Plus label
The Cornerstone Plus label names 194 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 control175- ammannia, purple
- anoda, spurred
- barley
- barnyardgrass, common
- bassia, fivehook
- beggarweed, florida
- bittercress
- bluegrass, annual
- bluegrass, bulbous
- brome, downy
- brome, japanese
- panicum, browntop
- buckwheat, wild
- burcucumber
- buttercup
- carolina geranium
- carpetweed
- cheat
- chervil
- chickweed
- cocklebur, common
- copperleaf, hophornbean
- copperleaf, virginia
- coreopsis, plains
- corn, volunteer
- speedwell, corn
- crabgrass
- crowfootgrass
- eveningprimrose, cutleaf
- devilsclaw
- dwarfdandelion
- mannagrass, eastern
- eclipta
- panicum, fall
- falsedandelion
- falseflax, smallseed
- fiddleneck
- pennycress, field
- filaree, broadleaf
- fleabane, annual
- fleabane, hairy
- fleabane, rough
- pusley, florida
- foxtail, giant
- foxtail, bristly
- foxtail, yellow
- foxtail, carolina
- foxtail, green
- goatgrass, jointed
- goosegrass
- grain sorghum
- groundcherry
- groundsel, common
- sesbania, hemp
- henbit
- horseweed
- jimsonweed
- johnsongrass, seedling
- junglerice
- knotweed
- kochia
- lambsquarters
- barley, little
- rocket, london
- mayweed
- morning glory, annual
- mustard, blue
- mustard, tansy
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, hairy
- oats
- amaranth, palmer
- pigweed
- prickly lettuce
- purslane, common
- ragweed, common
- ragweed, giant
- red rice
- rye, volunteer
- cereal rye
- ryegrass
- sandbur, field
- sandbur, longspine
- shattercane
- shepherd's-purse
- sicklepod
- signalgrass, broadleaf
- smartweed, ladysthumb
- smartweed, pennsylvania
- sowthistle, annual
- needles, spanish
- speedwell, purslane
- sprangletop
- spurge, prostrate
- spurge, spotted
- spurry, umbrella
- stinkgrass
- sunflower
- swinecress
- sida, prickly
- panicum, texas
- thistle, russian
- velvetleaf
- pepperweed, virginia
- waterhemp, common
- wheat
- wheat, overwintered
- wild oats
- millet, wild-proso
- witchgrass
- cupgrass, woolly
- rocket, yellow
- alfalfa
- bahiagrass
- bermudagrass
- bermudagrass, water
- bindweed, field
- bluegrass, kentucky
- blueweed, texas
- bromegrass, smooth
- bursage, woolly-leaf
- canarygrass, reed
- cattail
- clover, red
- clover, white
- cogongrass
- dallisgrass
- dandelion
- dock, curly
- dogbane, hemp
- fescue
- fescue, tall
- guineagrass
- horsenettle
- horseradish
- jerusalem artichoke
- johnsongrass
- kikuygrass
- knapweed
- lespedeza
- milkweed, common
- muhly, wirestem
- mullein, common
- nightshade, silverleaf
- nutsedge, purple
- nutsedge, yellow
- orchardgrass
- pampasgrass
- paragrass
- poison hemlock
- pokeweed, common
- quackgrass
- reed, giant
- ryegrass, perennial
- smartweed, swamp
- sowthistle, perennial
- starthistle, yellow
- thistle, canada
- timothy
- torpedograss
- trumpetcreeper
- vaseygrass
- velvetgrass
- wheatgrass, western
- blackberry
- blackgum
- eucalyptus
- hazel
- honeysuckle
- poison ivy
- sage brush, california
- sweetgum
- virginia creeper
Partial control
partial14- alligatorweed
- phragmites
- sweet potato, wild
- thistle, artichoke
- bearmat
- buckwheat, california
- catsclaw
- chamise
- peppertree, brazilian
- hasardia
- monkey flower
- sage, black
- sage, white
- waxmyrtle, southern
Suppression
suppression4- bentgrass
- dodder
- redvine
- spurge, leafy
Controls with a tank-mix partner
needs partner1- mallow
Cornerstone Plus 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.
Cornerstone Plus FAQ
What weeds does Cornerstone Plus control?
The Cornerstone Plus label names 194 weeds, including purple ammannia, spurred anoda, barley, common barnyardgrass, fivehook bassia, and florida beggarweed. Control varies by crop, rate, and timing.
What crops is Cornerstone Plus labeled for?
Cornerstone Plus is labeled for 44 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.
What is the active ingredient in Cornerstone Plus? Is it a generic?
Cornerstone Plus's active ingredient is glyphosate (MOA Group 9). 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.