Herbicide label

Optogen

Optogen (EPA 100-1465) is a Group 27 bicyclopyrone herbicide labeled for 1 crops. The label lists 16 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“Optogen is a systemic preemergence and postemergence herbicide for the selective contact and residual control of broadleaf weeds.”

— Optogen EPA label, Reg. No. 100-1465

Optogen label facts

Product Optogen
EPA Reg. No. 100-1465
Registrant Syngenta Crop Protection, LLC
Active ingredient bicyclopyrone
MOA group 27

Crops on the Optogen label

Optogen is labeled for these 1 crops and uses, per the EPA label.

sweet potato

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Weeds on the Optogen label

The Optogen label names 33 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 control16

carpetweed
galinsoga, hairy
henbit
jimsonweed
kochia
lambsquarters, common
nightshade, eastern black
pigweed, prostrate
pigweed, redroot
pigweed, smooth
purslane, common
purslane, horse
ragweed, common
ragweed, giant
thistle, russian
velvetleaf

Partial control

partial17

amaranth, palmer
barnyardgrass, common
chickweed, common
cocklebur, common
crabgrass, large
crabgrass, smooth
foxtail, giant
foxtail, yellow
goosegrass
ladysthumb
mallow, venice
morningglory, entireleaf
morningglory, ivyleaf
mustard, wild
panicum, fall
smartweed, pennsylvania
waterhemp, common

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Optogen 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 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.

Optogen FAQ

What weeds does Optogen control?

The Optogen label names 33 weeds, including carpetweed, hairy galinsoga, henbit, jimsonweed, kochia, and common lambsquarters. Control varies by crop, rate, and timing.

What crops is Optogen labeled for?

Optogen is labeled for 1 crops and uses, including sweet potato.

What is the active ingredient in Optogen? Is it a generic?

Optogen's active ingredient is bicyclopyrone (MOA Group 27). 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 Optogen?

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 Optogen?

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.