General Information

Poor weed control and/or crop injury may result if directions are not followed. Uneven application or over-application can result in erratic weed control or injury to the treated or rotational crops.

Do not graze or forage crop grown in treated soil or cut for hay or silage.

Do not apply Curbit EC Herbicide to soils which are wet, cloddy, or subject to prolonged periods of flooding because poor weed control or crop injury may result.

Do not apply to any area not specified on the label.


If replanting is required, replant only crops listed on this or other ethalfluralin labels.

Sugar Beets or Red Beets
Do not plant sugar beets or red beets within 13 months following an application of 3.0 pints or more per acre of Curbit EC Herbicide.

Where less than 3.0 pints of Curbit EC Herbicide have been applied, sugar beets or red beets may be planted 8 months after an application of Curbit EC Herbicide, if the Curbit EC Herbicide treated soil is moldboard plowed to a depth of a least 12 inches prior to planting.

Spinach or Oats
In California, Arizona, and Texas, do not plant spinach or oats within 8 months following an application of 3.0 pints per acre or more of Curbit EC Herbicide.

Do not incorporate Curbit EC Herbicide prior to planting as crop loss will occur. Do not use Curbit EC Herbicide under or over row covers, hot caps, plastic mulches, or other plant covers as severe crop injury will occur. Do not make broadcast application to transplants.

Do not plant in a furrow.

Under cool temperature conditions that can delay early seedling emergence or growth, Curbit EC Herbicide can cause plant injury or crop failure. Be especially cautious during first planting of the season when this condition is likely to occur.

Curbit EC Herbicide is a preemergence herbicide that controls many annual grasses and broadleaf weeds. Curbit EC Herbicide controls weeds as they germinate. Curbit EC Herbicide will not control established weeds.

Start with a clean spray tank. Fill sprayer 1/3 to 1/2 full with clean water. Start agitation. Add correct quantity of Curbit EC Herbicide, continue agitation and finish filling the tank. Do not mix this product with fertilizer.

Apply Curbit EC Herbicide using any properly calibrated, low pressure herbicide sprayer that will apply the spray uniformly. Do not apply this product through any type of irrigation system.

IRRIGATED AGRICULTURE: Where overhead sprinkler irrigation (solid set, center pivot or continuous flow lateral move) is used, activate Curbit EC Herbicide with a minimum of 1/2" of irrigation water within 2 days after application. For flood or furrow irrigation, refer to Non-Irrigated Agriculture activation directions below. Irrigated fields may be shallowly cultivated without loss of Curbit EC Herbicide activity.

NON-IRRIGATED AGRICULTURE: A single, 1/2" rainfall within 5 days of application is necessary to activate Curbit EC Herbicide. If a single 1/2" rainfall is not received, a shallow cultivation will activate Curbit EC Herbicide. Rainfall activated Curbit EC Herbicide may be shallowly cultivated without loss of activity.

NOTE: Heavy rainfall and/or excessive irrigation soon after application of Curbit EC Herbicide may cause crop injury. This potential injury can be enhanced if seeding depth is too shallow.

A firm seedbed that is trash and clod free is desirable for a surface application of Curbit EC Herbicide. Crop residues, existing weeds and cloddy conditions may interfere with the performance of Curbit EC Herbicide. Bedded culture is preferable to flat culture because of better drainage. Do not plant in a furrow.

BAND TREATMENT: Curbit EC Herbicide may also be used as a banded spray between rows of direct seeded or transplanted cucumbers, melons or watermelons grown on plastic mulch.

CALIFORNIA: In coarser soils, activation of Curbit EC Herbicide may occur with as little as 1/8" of rainfall or irrigation. As a guideline, 1/4" is suggested in such areas instead of the 1/2" normally recommended on this label.

Limitations, Restrictions, and Exceptions

PREEMERGENCE WEED CONTROL: Curbit EC Herbicide should be used only as a postplant surface applied herbicide prior to weed emergence. Apply to seeded crop prior to its emergence, or apply as a banded spray between rows after crop emergence or transplanting. Refer to the section titled "ACTIVATION DIRECTIONS."

For broadcast application on direct-seeded crop, apply Curbit EC Herbicide to the soil surface at seeding, or no later than 2 days after seeding. DO NOT SOIL INCORPORATE CURBIT EC HERBICIDE PRIOR TO PLANTING AS CROP LOSS WILL OCCUR.

*Certain crop varieties may have potential for injury or loss due to use of this herbicide. Consult your agricultural experiment station, or other qualified crop advisors for information pertaining to crop varieties grown in your area.

These recommendations are given as the broadcast rates of Curbit EC Herbicide per acre. Where a rate range is shown, use the lower rate for coarser textured soils or soils with lower organic matter. Use the higher rate, where a rate range is shown, on soils containing more than 5% organic matter. Where soil texture is variable within the same field, let the finest soil texture which predominates in that field determine the use rate (see SOIL TEXTURE GUIDE). Curbit EC Herbicide is not recommended for use on soils containing more than 10% organic matter.

Broadcast the rates in at least 20.0 gallons of water per acre by ground equipment only.

Restricted Entry Interval

24 hours