Herbicide label
Treflan 4 EC Herbicide Label
Treflan 4 EC (EPA 5905-532) is a Group 3 trifluralin herbicide labeled for 23 crops. The label lists 37 controlled weeds, plus partial-control, suppression, and partner-control categories.
Treflan 4 EC label facts
- Product Treflan 4 EC
- EPA Reg. No. 5905-532
- Registrant Helena Agri-Enterprises, LLC, d/b/a Helena Chemical Comp
- Active ingredient trifluralin
- MOA group 3
Crops on the Treflan 4 EC label
Treflan 4 EC is labeled for these 23 crops and uses, per the EPA label.
Weeds on the Treflan 4 EC label
The Treflan 4 EC label names 38 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- barley
- barnyardgrass, common
- bindweed, field
- brachiaria
- canarygrass
- carpetweed
- cheat
- chickweed
- crabgrass
- cupgrass, woolly
- goosefoot
- guineagrass
- rhizome johnsongrass
- johnsongrass, seedling
- junglerice
- knotweed
- kochia
- lambsquarters, common
- stinging nettle
- panicum, fall
- panicum, texas
- pigweed
- puncturevine
- purslane, common
- pusley, florida
- sandbur
- shattercane
- sprangletop
- stinkgrass
- thistle, russian
- blackgrass
- bluegrass, annual
- bromegrass species
- fiddleneck
- henbit
- ryegrass, italian
- foxtail
Partial control
partial1- red rice
Treflan 4 EC 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.
Treflan 4 EC FAQ
What weeds does Treflan 4 EC control?
The Treflan 4 EC label names 38 weeds, including barley, common barnyardgrass, field bindweed, brachiaria, canarygrass, and carpetweed. Control varies by crop, rate, and timing.
What crops is Treflan 4 EC labeled for?
Treflan 4 EC is labeled for 23 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.
What is the active ingredient in Treflan 4 EC? Is it a generic?
Treflan 4 EC's active ingredient is trifluralin (MOA Group 3). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Sources
Last updated 2026-09-30.