Herbicide label
Credit 41 Extra Herbicide Label
Credit 41 Extra (EPA 71368-20) is a Group 9 glyphosate herbicide labeled for 42 crops. The label lists 176 controlled weeds, plus partial-control, suppression, and partner-control categories.
“This product may also be used for weed control or growth regulation on Christmas tree farms, farmsteads, production nurseries, and sod farms and turfgrass seed farms.”
Credit 41 Extra label facts
- Product Credit 41 Extra
- EPA Reg. No. 71368-20
- Registrant Nufarm, Inc.
- Active ingredient glyphosate
- MOA group 9
Crops on the Credit 41 Extra label
Credit 41 Extra is labeled for these 42 crops and uses, per the EPA label.
- field corn
- soybean
- wheat
- cotton
- sunflower
- potato
- peanut
- sugar beet
- canola
- barley
- sorghum
- rice
- alfalfa
- buckwheat
- proso millet
- oats
- cereal rye
- triticale
- wild rice
- popcorn
- seed corn
- corn silage
- sweet corn
- fallow
- flax
- mustard
- safflower
- sesame
- sugarcane
- radish
- sweet potato
- turnip
- chickpea
- cowpea
- lentil
- field pea
- dry edible bean
- spinach
- clover
- grass seed
- mint
- durum wheat
Weeds on the Credit 41 Extra label
The Credit 41 Extra label names 192 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 control176- alfalfa
- ammannia, purple
- anoda, spurred
- jerusalem artichoke
- bahiagrass
- barley
- barley, little
- barnyardgrass, common
- bassia, fivehook
- beggarweed, florida
- bermudagrass
- bermudagrass, water
- bindweed, field
- bittercress
- blackberry
- blackgum
- bluegrass, annual
- bluegrass, bulbous
- bluegrass, kentucky
- blueweed, texas
- brome, downy
- brome, japanese
- bromegrass, smooth
- buckwheat, wild
- burcucumber
- buttercup
- canarygrass, reed
- carpetweed
- cattail
- chamise
- cheat
- chervil
- chickweed
- clover, red
- clover, white
- cocklebur, common
- cogongrass
- copperleaf, hophornbeam
- copperleaf, virginia
- coreopsis, plains
- corn, volunteer
- crabgrass
- crowfootgrass
- cupgrass, woolly
- dallisgrass
- dandelion
- dwarf dandelion
- false dandelion
- devilsclaw
- dock, curly
- dodder
- dogbane, hemp
- eclipta
- eucalyptus
- eveningprimrose, cutleaf
- falseflax, smallseed
- fescue
- fescue, tall
- fiddleneck
- filaree, broadleaf
- fleabane, annual
- fleabane, hairy
- fleabane, rough
- foxtail, bristly
- foxtail, carolina
- foxtail, giant
- foxtail, green
- foxtail, yellow
- carolina geranium
- goatgrass, jointed
- goosegrass
- groundcherry
- groundsel, common
- groundsel, cressleaf
- guineagrass
- hazel
- poison hemlock
- henbit
- honeysuckle
- horsenettle
- horseradish
- horseweed
- poison ivy
- jimsonweed
- johnsongrass
- johnsongrass, seedling
- junglerice
- knapweed
- knotweed
- kochia
- lambsquarters
- lespedeza
- prickly lettuce
- mannagrass, eastern
- mayweed
- milkweed, common
- millet, wild-proso
- morning glory, annual
- muhly, wirestem
- mullein, common
- mustard, blue
- mustard, tansy
- mustard, tumble
- mustard, wild
- needles, spanish
- nightshade, black
- nightshade, hairy
- nightshade, silverleaf
- nutsedge, purple
- nutsedge, yellow
- oats
- orchardgrass
- pampasgrass
- panicum, browntop
- panicum, fall
- panicum, texas
- paragrass
- pennycress, field
- pepperweed, virginia
- pigweed
- amaranth, palmer
- pokeweed, common
- purslane
- pusley, florida
- quackgrass
- ragweed, common
- ragweed, giant
- reed, giant
- red rice
- rocket, london
- rocket, yellow
- cereal rye
- rye, volunteer
- ryegrass
- ryegrass, perennial
- sage, black
- sandbur, field
- sandbur, longspine
- sesbania, hemp
- shattercane
- shepherd's-purse
- sicklepod
- sida, prickly
- signalgrass, broadleaf
- smartweed, ladysthumb
- smartweed, pennsylvania
- smartweed, swamp
- grain sorghum
- sowthistle, annual
- sowthistle, perennial
- speedwell, corn
- speedwell, purslane
- sprangletop
- spurge, prostrate
- spurge, spotted
- spurry, umbrella
- starthistle, yellow
- stinkgrass
- sunflower
- sweetgum
- swinecress
- thistle, canada
- thistle, russian
- timothy
- torpedograss
- trumpetcreeper
- vaseygrass
- velvetgrass
- velvetleaf
- virginia creeper
- waterhemp, common
- wheat
- wheat, overwintered
- wheatgrass, western
- wild oats
- witchgrass
Partial control
partial11- alligatorweed
- bearmat
- buckwheat, california
- catsclaw
- hasardia
- monkey flower
- phragmites
- sage, white
- sweet potato, wild
- thistle, artichoke
- waxmyrtle, southern
Suppression
suppression2- bentgrass
- redvine
Controls with a tank-mix partner
needs partner3- bursage, woolly-leaf
- mallow
- spurge, leafy
Credit 41 Extra 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.
Credit 41 Extra FAQ
What weeds does Credit 41 Extra control?
The Credit 41 Extra label names 192 weeds, including alfalfa, purple ammannia, spurred anoda, jerusalem artichoke, bahiagrass, and barley. Control varies by crop, rate, and timing.
What crops is Credit 41 Extra labeled for?
Credit 41 Extra is labeled for 42 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.
What is the active ingredient in Credit 41 Extra? Is it a generic?
Credit 41 Extra'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.