Karmex DF

CaroVail · EPA Reg 66222-51 · Herbicide Document last checked 2026-05-30

According to the label From the product label

These details were extracted from this product's label PDF. The label is the law. Confirm every rate, site, restriction and safety requirement against the label before mixing or applying. Check for a state supplemental label; a product may be restricted or prohibited in a state or site even when a rate appears below. · EPA registration data for Reg. 66222-51 →

Karmex DF is a Group 7 herbicide containing 80.0% Diuron (3-(3,4-dichlorophenyl)-1,1-dimethyurea) by weight. It is designed for the control of many annual and perennial grasses and herbaceous weeds. The product can be used as a preemergence herbicide to control germinating weeds or as a postemergence herbicide to control established weeds. It is suitable for use on various crops including alfalfa, barley, cotton, sugarcane, and certain fruit and nut crops, though specific limitations apply to orchards and groves. Application methods include ground application, aerial application, and tank mixing with other herbicides. When using as a postemergence application, adding a surfactant is recommended for best results on certain weeds. Users must be aware of drift management, especially during temperature inversions or high winds, to avoid damage to non-target areas. Handling requires specific Personal Protective Equipment (PPE), including long-sleeved shirts, long pants, chemical-resistant gloves, and potentially a NIOSH-approved respirator depending on the application method. A restricted-entry interval (REI) of 12 hours applies to agricultural uses.

Pests covered (2)

annual and perennial grasses and herbaceous weedsPerennial Grasses

Areas treatable (1)

alfalfa, barley, cotton, sugarcane, fruit and nut crops

How to treat each type of area 1

alfalfa, barley, cotton, sugarcane, fruit and nut crops

Target pest	Location	Rate	Unit	Label notes
annual and perennial grasses and herbaceous weeds	Outdoor	varies	lbs/Acre	Preemergence and postemergence use available.

Mixing instructions 1

Label notes
May be tank mixed with other herbicides registered for crop or noncrop use.

Worker safety

Re-entry interval (REI) 12

PPE required Long-sleeved shirt and long pants; shoes plus socks; chemical-resistant gloves made of any waterproof material $\ge$ 14 mils; NIOSH approved particulate filtering respirator equipped with N, R, or P class filter media (for pilots, flaggers, and groundboom applicators).

Timing & weather

Avoid application during temperature inversions.
Avoid application when wind may cause drift to non-target areas.

Use restrictions 4

Do not apply directly to water or areas where surface water is present.
Do not apply when weather conditions favor drift.
Do not apply to fruit and nut crops in a way that contacts foliage or fruit with spray or mist.
Avoid application during temperature inversions.

Label SDS

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Document text and citations

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Reference only. Always read and follow the most current EPA-approved label on the product container. State and local restrictions may apply that are not reflected in this digitised copy. Verify the EPA registration number and revision date before use.