Herbicide label
Simazine 4L
Simazine 4L (EPA 19713-60) is a Group 5 simazine herbicide labeled for 2 crops. The label lists 47 controlled weeds, plus partial-control, suppression, and partner-control categories.
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Simazine 4L label facts
- Product Simazine 4L
- EPA Reg. No. 19713-60
- Registrant Drexel Chemical Company
- Active ingredient simazine
- MOA group 5
Crops on the Simazine 4L label
Simazine 4L is labeled for these 2 crops and uses, per the EPA label.
Need the rate or timing for one of these? Filter every label by your crop, free.
Weeds on the Simazine 4L label
The Simazine 4L label names 51 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 control47- alyssum
- bluegrass, annual
- morning glory, annual
- ryegrass, annual
- barnyardgrass, common
- burclover
- carelessweed
- carpetweed
- chickweed, common
- crabgrass
- brome, downy
- panicum, fall
- fiddleneck
- filaree, broadleaf
- fireweed
- bassia, fivehook
- paintbrush, flora's
- pusley, florida
- foxtail
- goosegrass
- groundsel, common
- henbit
- junglerice
- knawel
- lambsquarters, common
- nightshade, black
- pepperweed
- pigweed
- pineapple-weed
- prickly lettuce
- purslane, common
- ragweed, giant
- rattail fescue
- redmaids
- thistle, russian
- shepherd's-purse
- signalgrass
- hairgrass, silver
- smartweed
- needles, spanish
- speedwell
- tansymustard
- mustard, wild
- wild oats
- witchgrass
- pepperweed, yellowflower
- quackgrass
Controls with a tank-mix partner
needs partner4- velvetleaf
- nutsedge
- bermudagrass
- shattercane
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Simazine 4L 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.
Get the rate for your field: build a program and FieldMarshal cites the exact per-acre rate for your crop to 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 cites the exact plant-back for your rotational crop to the label line.
Simazine 4L FAQ
What weeds does Simazine 4L control?
The Simazine 4L label names 51 weeds, including alyssum, annual bluegrass, annual morning glory, annual ryegrass, common barnyardgrass, and burclover. Control varies by crop, rate, and timing.
What crops is Simazine 4L labeled for?
Simazine 4L is labeled for 2 crops and uses, including field corn and sweet corn.
What is the active ingredient in Simazine 4L? Is it a generic?
Simazine 4L's active ingredient is simazine (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 Simazine 4L?
It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal cites the exact interval for your rotation to the label line, so you can verify it.
Build a program →Can I tank-mix Simazine 4L?
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 cites the condition on each, so you can verify it.
Build a program →Plan in minutes, not evenings.
Start with Simazine 4L and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and cited.
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Sources
Last updated 2026-07-11.