General Information


SOIL TEXTURE: As used on the label, “Coarse soils” are loamy sand or sandy loam soils. “Medium soils” are loam, silt loam, silt, sandy clay, or sandy clay loam. “Fine soils” are silty clay, silty clay loam, clay, or clay loam. Silty clay loam soils are transitional soils and may be classified as medium textured soils in some regions of the U.S.


Do not allow sprays to drift on to adjacent desirable plants.

Apply this product only as specified on the label.

Do not use on other crops grown for food or forage. Observe all cautions and limitations on labeling of all products used in mixtures.

Do not rotate any crop not listed on the label for 18 months following application of TriCor DF.

For all uses: Low-pressure and high-volume hand-wand equipment is prohibited.


Use a standard low pressure (20 to 40 psi.) herbicide boom sprayer equipped with suitable nozzles and screens no finer than 50-mesh in nozzle and in-line strainers. Agitate thoroughly before and during application with bypass agitation.

GROUND APPLICATION: Apply the proper rate of TriCor DF in a minimum of 10 to 40 gallons of spray mixture per acre broadcast.

Banded Application: Use proportionally less TriCor DF per acre in a band versus a broadcast application. For band application use 1/4 to 1 gallon of spray mix per inch of band width regardless of row spacing.

EXAMPLES: (1) To treat a 15-inch band on rows 30 inches apart, use one-half of the broadcast rate of TriCor DF. (2) To treat a 14-inch band on rows 42 inches apart, use one-third of the broadcast rate of TriCor DF.

AERIAL APPLICATION: Where permitted, apply specified rate in a minimum of 2 to 10 gallons of spray mixture per acre.

Do not apply aerially when wind speed is greater than 10 mph.

NOTE: Do not apply aerially when TriCor DF is tank-mixed with Lasso.

For All Applications of TriCor DF: Sprayer must be accurately calibrated before applying TriCor DF. Check sprayer during application to be sure it is working properly and delivering a uniform spray pattern. As the volume of spray mixture decreases per acre, the importance of accurate calibration and uniform application increases. Avoid other application, misapplication, and boom and spray swath overlapping that will increase spray dosage. (Crop injury may occur as a result). Avoid spray skips and gaps which allow weeds to grow in untreated soil. Do not apply when weather conditions favor spray drift and/or when sensitive or cool season crops, such as cole crops, onions, peas, or strawberries are present in adjacent fields or in areas where wheat is growing in coarse textured soils.

Refer in the label for tank mix information.

Limitations, Restrictions, and Exceptions

BURNDOWN WEED CONTROL - Field Corn and Soybeans

TriCor DF can be used as part of a herbicide program for burndown of existing vegetation prior to crop emergence in conservation tillage systems. TriCor DF may be tank-mixed with 2,4-D low volatile ester (LVE), Gramoxone Inteon, or Roundup/Roundup Ultra/Touchdown for control of emerged weeds prior to field corn or soybean emergence. TriCor DF tank-mixes with 2,4-DB, Fusion, Poast Plus or Select may also be used in soybeans for control of emerged weeds prior to crop emergence. TriCor DF burndown tank-mixes can be applied before planting or prior to crop emergence in the following areas:

Field Corn:

Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, Ohio, South Dakota, and Wisconsin.


All areas for all products except Fusion tank-mixes — see Fusion section of the label for allowed states.

Application: TriCor DF may be applied up to 30 days prior to planting or pre-emergence. Apply only by ground equipment when TriCor DF is used for burndown of existing vegetation in conservation tillage systems. TriCor DF and tank-mix partner burndown rates are listed in the following three tables.

SPECIAL PRECAUTIONS: Do not apply these treatments after crop emergence. Observe all precautions and limitations on the labeling of all products used in tank-mixtures. Refer to the “General Information” section of the label for additional information, precautions, and limitations.

Field Corn:

1. Do not apply on coarse textured soils with less than 1.5% organic matter.

2. Do not apply more than 4 oz of TriCor DF per acre on soils with less than 2% organic matter.

3. Do not apply on soils having pH 7.0 or greater.

4. Do not apply more than 5-1/3 ounces TriCor DF (0.25 pound active ingredient) per acre per growing season.

5. Corn seed should be planted a minimum of 1-1/2 inches deep.

6. TriCor DF may only be used in hybrid seed corn production fields if both inbred parents are known to be tolerant to TriCor DF.


1. Apply only 2,4-D low volatile ester formulations which are registered and labeled for preplant or burndown use in soybeans.

2. Do not apply tank-mixtures containing 2,4-D LVE if wind is blowing toward desired susceptible plants (i.e., cotton, tobacco, tomato, etc.) or when wind speeds exceed 6 miles per hour.

FEEDING RESTRICTIONS: Corn treated with TriCor DF may be harvested for silage or grain 60 days after treatment.

Soybean vines or hay treated with TriCor DF may be grazed or fed to livestock 40 days after application. Do not feed hay, forage, fodder or graze 2,4-D, Select, or Fusion treated vegetation. Follow the most restrictive preharvest interval of all products used in a tank-mixture.

Restricted Entry Interval

12 hours

Exception: If the product is soil-injected or soil-incorporated, the Worker Protection Standard, under certain circumstances, allows workers to enter the treated area if there will be no contact with anything that has been treated.