Herbicide label

GCS Atrazine 90DF

GCS Atrazine 90DF (EPA 94730-25) is a Group 5 atrazine herbicide labeled for 5 crops. The label lists 39 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

GCS Atrazine 90DF label facts

Product GCS Atrazine 90DF
EPA Reg. No. 94730-25
Registrant Generic Crop Science, LLC
Active ingredient atrazine
MOA group 5

Crops on the GCS Atrazine 90DF label

GCS Atrazine 90DF is labeled for these 5 crops and uses, per the EPA label.

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Weeds on the GCS Atrazine 90DF label

The GCS Atrazine 90DF label names 44 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 control39

amaranth
amaranth, spiny
barnyardgrass, common
brome, downy
buckwheat, wild
carpetweed
cocklebur, common
crabgrass
crabgrass, large
dock, seedling
fireweed
foxtail
foxtail, green
foxtail, yellow
groundcherry
henbit
jimsonweed
junglerice
kochia
lambsquarters
lambsquarters, common
morning glory, annual
mustard
nightshade, black
panicum, fall
pellitory weed
pigweed
purslane
ragweed, giant
smartweed
sunflower
thistle, annual
thistle, russian
velvetleaf
volunteer wheat
wild lettuce
wild oats
wild sunflower
wiregrass

Partial control

partial9

barnyardgrass, common
cocklebur, common
crabgrass, large
foxtail, giant
foxtail, green
foxtail, yellow
sicklepod
velvetleaf
witchgrass

Suppression

suppression1

volunteer wheat

Controls with a tank-mix partner

needs partner2

bermudagrass
johnsongrass

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GCS Atrazine 90DF 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 and your soil texture.

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Plant-back and rotation

Your interval depends on your application rate, the rotational crop, and your state, region, and rainfall — some intervals differ in CO, IA, IL, IN, KS, KY, LA, MN, MO, MT, ND, NE, OK, OR, SD, TX, WI, and WY.

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GCS Atrazine 90DF FAQ

What weeds does GCS Atrazine 90DF control?

The GCS Atrazine 90DF label names 44 weeds, including amaranth, spiny amaranth, common barnyardgrass, downy brome, wild buckwheat, and carpetweed. Control varies by crop, rate, and timing.

What crops is GCS Atrazine 90DF labeled for?

GCS Atrazine 90DF is labeled for 5 crops and uses, including field corn, sorghum, sweet corn, sugarcane, and fallow.

What is the active ingredient in GCS Atrazine 90DF? Is it a generic?

GCS Atrazine 90DF's active ingredient is atrazine (MOA Group 5). 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 GCS Atrazine 90DF?

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 GCS Atrazine 90DF?

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.