Herbicide label

Starane Flex

Starane Flex (EPA 62719-604) is a Group 2 and 4 florasulam and fluroxypyr 1-methylheptyl ester herbicide labeled for 7 crops. The label lists 32 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Starane Flex label facts

Product Starane Flex
EPA Reg. No. 62719-604
Registrant Corteva Agriscience
Active ingredient florasulam and fluroxypyr 1-methylheptyl ester
MOA group 2 and 4

Crops on the Starane Flex label

Starane Flex is labeled for these 7 crops and uses, per the EPA label.

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Weeds on the Starane Flex label

The Starane Flex 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 control32

buckwheat, wild
volunteer canola
chamomile, corn
chamomile, false
mayweed, chamomile
chamomile, wild
chickweed, common
cleavers
volunteer flax
flixweed
knotweed
kochia
mallow, venice
morningglory
mustard, black
mustard, blue
mustard, tansy
mustard, treacle
mustard, tumble
mustard, wild
pennycress, field
pineapple-weed
prickly lettuce
puncturevine
purslane, common
ragweed, common
rocket, london
shepherd's-purse
smartweed, green
ladysthumb
smartweed, pennsylvania
sunflower

Suppression

suppression12

bindweed, field
canola, volunteer (clearfield)
dandelion
hempnettle
horseweed
mallow, common
marshelder
nightshade, black
pigweed, redroot
sowthistle, annual
sowthistle, perennial
thistle, russian

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Starane Flex 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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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.

Starane Flex FAQ

What weeds does Starane Flex control?

The Starane Flex label names 44 weeds, including wild buckwheat, volunteer canola, corn chamomile, false chamomile, chamomile mayweed, and wild chamomile. Control varies by crop, rate, and timing.

What crops is Starane Flex labeled for?

Starane Flex is labeled for 7 crops and uses, including wheat, barley, spring wheat, winter wheat, and oats.

What is the active ingredient in Starane Flex? Is it a generic?

Starane Flex's active ingredient is florasulam and fluroxypyr 1-methylheptyl ester (MOA Group 2 and 4). 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 Starane Flex?

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 Starane Flex?

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.