Herbicide label
Quelex Herbicide Label
Quelex (EPA 62719-661) is a Group 2 and 4 florasulam and halauxifen-methyl herbicide labeled for 5 crops. The label lists 37 controlled weeds, plus partial-control, suppression, and partner-control categories.
Quelex label facts
- Product Quelex
- EPA Reg. No. 62719-661
- Registrant Corteva Agriscience
- Active ingredient florasulam and halauxifen-methyl
- MOA group 2 and 4
Crops on the Quelex label
Quelex is labeled for these 5 crops and uses, per the EPA label.
Weeds on the Quelex label
The Quelex label names 45 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 control37- bedstraw, catchweed
- buckwheat, wild
- buttercup, smallflower
- volunteer canola
- chamomile, corn
- chamomile, false
- mayweed, chamomile
- chamomile, wild
- chickweed, common
- deadnettle, purple
- filaree, redstem
- flixweed
- volunteer flax
- fumitory
- carolina geranium
- groundsel, cressleaf
- hawksbeard, narrowleaf
- hempnettle, common
- henbit
- horseweed
- lambsquarters, common
- mustard, black
- mustard, blue
- mustard, tansy
- mustard, treacle
- mustard, tumble
- mustard, wild
- pennycress, field
- pepperweed, virginia
- pigweed, redroot
- ragweed, common
- ragweed, giant
- rocket, london
- shepherd's-purse
- smartweed
- volunteer soybean
- vetch, hairy
Suppression
suppression8- bindweed, field
- dandelion
- kochia
- prickly lettuce
- sowthistle, annual
- sowthistle, perennial
- sunflower, annual
- thistle, canada
Quelex 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.
Quelex FAQ
What weeds does Quelex control?
The Quelex label names 45 weeds, including catchweed bedstraw, wild buckwheat, smallflower buttercup, volunteer canola, corn chamomile, and false chamomile. Control varies by crop, rate, and timing.
What crops is Quelex labeled for?
Quelex is labeled for 5 crops and uses, including wheat, barley, winter wheat, durum wheat, and triticale.
What is the active ingredient in Quelex? Is it a generic?
Quelex's active ingredient is florasulam and halauxifen-methyl (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.