Herbicide label

Credit 41 Extra

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.

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Official EPA label (PDF)

“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 EPA label, Reg. No. 71368-20

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.

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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

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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.

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Plant-back and rotation

Your interval depends on your application rate, the rotational crop, and your state or region.

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.

What's the plant-back interval after Credit 41 Extra?

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 Credit 41 Extra?

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.