Herbicide label
PowerFlex HL
PowerFlex HL (EPA 62719-643) is a Group 2 pyroxsulam herbicide labeled for 2 crops. The label lists 42 controlled weeds, plus partial-control, suppression, and partner-control categories.
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PowerFlex HL label facts
- Product PowerFlex HL
- EPA Reg. No. 62719-643
- Registrant Corteva Agriscience
- Active ingredient pyroxsulam
- MOA group 2
Crops on the PowerFlex HL label
PowerFlex HL 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 PowerFlex HL label
The PowerFlex HL label names 50 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 control42- barnyardgrass, common
- blackgrass
- bluegrass, bulbous
- brome, downy
- brome, japanese
- brome, ripgut
- cheat
- chess, hairy
- corn, volunteer
- foxtail, yellow
- wild oats
- ryegrass, italian
- windgrass, common
- bedstraw, catchweed
- bittercress, hairy
- burclover, spotted
- buttercup, smallflower
- volunteer canola
- chickweed, common
- chickweed, mouseear
- clover, white
- falseflax, smallseed
- fiddleneck
- flixweed
- carolina geranium
- gromwell, corn
- hempnettle, common
- henbit
- lambsquarters, common
- mustard, black
- mustard, blue
- mustard, tumble
- mustard, wild
- pennycress, field
- pepperweed, virginia
- pigweed, redroot
- shepherd's-purse
- smartweed
- tansymustard, pinnate
- thistle, russian
- vetch, hairy
- wallflower, bushy
Suppression
suppression8- foxtail barley
- canarygrass, hood
- canarygrass, littleseed
- foxtail, green
- quackgrass
- rescuegrass
- coreopsis, plains
- evening-primrose, cutleaf
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
PowerFlex HL 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.
PowerFlex HL FAQ
What weeds does PowerFlex HL control?
The PowerFlex HL label names 50 weeds, including common barnyardgrass, blackgrass, bulbous bluegrass, downy brome, japanese brome, and ripgut brome. Control varies by crop, rate, and timing.
What crops is PowerFlex HL labeled for?
PowerFlex HL is labeled for 2 crops and uses, including winter wheat and triticale.
What is the active ingredient in PowerFlex HL? Is it a generic?
PowerFlex HL's active ingredient is pyroxsulam (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 PowerFlex HL?
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.
Build a program →Can I tank-mix PowerFlex HL?
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.
Build a program →Plan in minutes, not hours.
Start with PowerFlex HL and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and checked against the label.
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Sources
Last updated 2026-07-14.