Herbicide label

Tri-Con 80/20

Tri-Con 80/20 (EPA 11220-46) is a chloropicrin and methyl bromide herbicide labeled for 2 crops. The label lists 2 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Tri-Con 80/20 label facts

Crops on the Tri-Con 80/20 label

Tri-Con 80/20 is labeled for these 2 crops and uses, per the EPA label.

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Weeds on the Tri-Con 80/20 label

The Tri-Con 80/20 label names 2 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 control2
  • grass seeds
  • weed seeds

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Tri-Con 80/20 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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Tri-Con 80/20 FAQ

What weeds does Tri-Con 80/20 control?

The Tri-Con 80/20 label names 2 weeds, including grass seeds and weed seeds. Control varies by crop, rate, and timing.

What crops is Tri-Con 80/20 labeled for?

Tri-Con 80/20 is labeled for 2 crops and uses, including potato and sweet potato.

What is the active ingredient in Tri-Con 80/20? Is it a generic?

Tri-Con 80/20's active ingredient is chloropicrin and methyl bromide. Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

Can I tank-mix Tri-Con 80/20?

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.

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Sources

Last updated 2026-07-14.