Herbicide label

League

League (EPA 59639-166) is a Group 2 imazosulfuron herbicide labeled for 2 crops. The label lists 24 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“League Herbicide is a selective herbicide which provides contact and residual control of susceptible weeds in labeled crops.”

— League EPA label, Reg. No. 59639-166

League label facts

Product League
EPA Reg. No. 59639-166
Registrant Valent U. S. A. LLC
Active ingredient imazosulfuron
MOA group 2

Crops on the League label

League is labeled for these 2 crops and uses, per the EPA label.

potato
rice

Need the rate or timing for one of these? Filter every label by your crop, free.

Weeds on the League label

The League label names 36 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 control24

buckwheat, wild
croton, woolly
dayflower
ducksalad
eclipta
flatsedge, rice
galinsoga, hairy
gourd, texas
groundcherry, cutleaf
sesbania, hemp
horseweed
jointvetch, indian
jointvetch, northern
lambsquarters, common
morningglory
morningglory, pitted
nutsedge, yellow
pigweeds (except livid)
purslane, common
ragweed, common
ammannia, purple
ricefield bulrush
texasweed
turnip, wild

Suppression

suppression12

barnyardgrass, common
nettle, burning
crabgrass, large
foxtail, giant
groundsel, common
mayweed
nightshade, black
nutsedge, purple
shepherd's-purse
smartweed, pennsylvania
sowthistle
thistle, russian

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League 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.

Get the rate for your field: build a program and FieldMarshal gives you the exact per-acre rate for your crop from 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 gives you the exact plant-back for your rotational crop from the label line.

League FAQ

What weeds does League control?

The League label names 36 weeds, including wild buckwheat, woolly croton, dayflower, ducksalad, eclipta, and rice flatsedge. Control varies by crop, rate, and timing.

What crops is League labeled for?

League is labeled for 2 crops and uses, including potato and rice.

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

League's active ingredient is imazosulfuron (MOA Group 2). 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 League?

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 League?

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.