Herbicide label
OpenSky Herbicide Label
OpenSky (EPA 62719-721) is a Group 2 and 4 fluroxypyr 1-methylheptyl ester and pyroxsulam herbicide labeled for 4 crops. The label lists 50 controlled weeds, plus partial-control, suppression, and partner-control categories.
OpenSky label facts
- Product OpenSky
- EPA Reg. No. 62719-721
- Registrant Corteva Agriscience
- Active ingredient fluroxypyr 1-methylheptyl ester and pyroxsulam
- MOA group 2 and 4
Crops on the OpenSky label
OpenSky is labeled for these 4 crops and uses, per the EPA label.
Weeds on the OpenSky label
The OpenSky label names 52 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 control50- foxtail barley
- barnyardgrass, common
- bedstraw, catchweed
- blackgrass
- bluegrass, bulbous
- brome, downy
- brome, japanese
- brome, ripgut
- buckwheat, wild
- canarygrass, hood
- canarygrass, littleseed
- volunteer canola
- mayweed, chamomile
- cheat
- chess, hairy
- chickweed, common
- chickweed, mouseear
- corn, volunteer
- darnel, persian
- falseflax, smallseed
- rattail fescue
- flixweed
- foxtail, green
- foxtail, yellow
- gromwell, corn
- hempnettle, common
- henbit
- kochia
- lambsquarters, common
- prickly lettuce
- mallow, common
- mustard, black
- mustard, blue
- mustard, tumble
- mustard, wild
- mustard, wormseed
- wild oats
- pennycress, field
- pigweed, redroot
- ryegrass, italian
- shepherd's-purse
- smartweed, annual
- speedwell, field
- speedwell
- sunflower, annual
- tansymustard, pinnate
- thistle, russian
- violet, field
- wallflower, bushy
- windgrass, common
Suppression
suppression2- quackgrass
- rescuegrass
OpenSky 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.
OpenSky FAQ
What weeds does OpenSky control?
The OpenSky label names 52 weeds, including foxtail barley, common barnyardgrass, catchweed bedstraw, blackgrass, bulbous bluegrass, and downy brome. Control varies by crop, rate, and timing.
What crops is OpenSky labeled for?
OpenSky is labeled for 4 crops and uses, including spring wheat, winter wheat, triticale, and durum wheat.
What is the active ingredient in OpenSky? Is it a generic?
OpenSky's active ingredient is fluroxypyr 1-methylheptyl ester and pyroxsulam (MOA Group 2 and 4). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Sources
Last updated 2026-09-17.