CORN (FIELD, POP) - PREPLANT, PREEMERGENCE

General Information

USE INFORMATION
This product is a herbicide intended for the control of many Broadleaf weeds, herbaceous Perennials and woody plants susceptible to 2,4-D in various crops including cereal grains (Barley, Millet, Oats, Rye, Wheat), Corn (Field, Pop, Sweet), fallow land and crop stubble, Potatoes, Sorghum and Soybeans (pre-plant and burndown applications only), forests, rangeland and established pastures including Conservation Reserve Program (CRP) acres, non-cropland, grasses grown for seed or Sod and Ornamental turf.

Apply this product as water or oil-water spray during warm weather when weeds, brush or woody plants are actively growing. Application under drought conditions often will give poor results. Use low spray pressure to minimize drift. Generally, the lower dosage specified on this label will be satisfactory for young, succulent growth of sensitive weed species. For less sensitive species and under conditions where control is more difficult, the higher dosage will be needed. Deep-rooted Perennial weeds such as Canada thistle and Field bindweed and many woody plants usually require repeated applications for maximum control. Note: If there are uncertainties concerning special local use situations or specific crop variety tolerances to 2,4-D, consult your State Agricultural Experiment Station or Local Extension Service weed specialist for advice.

WEED RESISTANCE MANAGEMENT

This product is a Group 4 herbicide. Any weed population may contain or develop plants naturally resistant to this product and other Group 4 herbicides. Weed species with acquired resistance to Group 4 may eventually dominate the weed population if Group 4 herbicides are used repeatedly in the same field or in successive years as primary method of control for targeted species. This may result in partial or total loss of control of those species by this product or other Group 4 herbicides.

To delay herbicide resistance, consider:
- Avoiding the consecutive use of this product or other target site of action Group 4 herbicides that have a similar target site of action on the same weed species.
- Using tank-mixtures or pre-mixes with herbicides from different target site of action Groups as long as the involved products are all registered for the same use, have different sites of action and are both effective at the tank-mix or pre-pack rate on the weed(s) of concern.
- Basing herbicide use on a comprehensive IPM program.
- Monitoring treated weed populations for loss of field efficacy.
- Contacting your local extension specialist, certified crop advisors and/or manufacturer for herbicide resistance management and/or integrated weed management recommendations for specific crops and resistant weed biotypes.

USE RESTRICTION
Chemigation: Do not apply this product through any type of irrigation system.

USE PRECAUTION
Excessive amounts of 2,4-D in the soil may temporarily inhibit seed germination and plant growth.

Susceptible Plants: Do not apply under circumstances where spray drift may occur to food, forage, or other plantings that might be damaged or crops thereof rendered unfit for sale, use, or consumption. Susceptible crops include, but are not limited to, Beans, Cotton, Flowers, Grapes (in growing stage), Fruit trees (foliage), Okra, Ornamentals, Soybeans (vegetative state), Sunflowers, Tobacco, Tomatoes and other Vegetables. Small amounts of spray drift that might not be visible may injure susceptible Broadleaf plants.

Other State and Local Requirements: Applicators must follow all state and local pesticide drift requirements regarding application of 2,4-D herbicides. Where states have more stringent regulations, they must be observed.

Equipment: All aerial and ground application equipment must be properly maintained and calibrated using appropriate carriers or surrogates.

Additional Requirements for Aerial Application: The boom length must not exceed 75% of the wingspan or 90% of the rotor blade diameter.

Release spray at the lowest height consistent with efficacy and flight safety. Do not release spray at a height greater than 10 feet above the crop canopy unless a greater height is required for aircraft safety. This requirement does not apply to forestry or rights-of-way applications. When applications are made with a crosswind, the swath will be displaced downwind. The applicator must compensate for this by adjusting the path of the aircraft upwind.

Additional Requirements for Ground Boom Application: Do not apply with a nozzle height greater than 4 feet above the crop canopy. 2,4-D esters may volatize during conditions of low humidity and high temperatures. Do not apply during conditions of low humidity and high temperatures.

Oil Spray: Use only as directed on the label distributed for this product. Fill clean spray tank about one-half to two-thirds full with diesel oil, fuel oil, stove oil, or other suitable oil. Add required amount of product with agitation turned on. Continue agitation while adding balance of oil. The resulting mixture is a solution and will generally remain uniform without agitation once mixed. However, agitation is suggested if available. Do not allow any water to get into the spray mixture to avoid formation of an invert emulsion (mayonnaise consistency).

Water Spray with Oil: Use only as directed on the label distributed for this product. Where a combination of water and oil diluent is specified, use emulsifiable crop oil or crop oil concentrate with mild agitation. Mix in the sequence of water, product and oil. If diesel or other non-emulsified oils listed above under “Oil Spray” are desired for use with water, add no more than 1 quart of such oil per 1 gallon of water and agitate vigorously until tank is emptied. If possible, pre-mix nonemulsified oil with this product and add this pre-mix to a mostly filled spray tank with agitation on. Follow these procedures carefully to avoid formation of an invert emulsion (mayonnaise consistency).

Mixing with Liquid Nitrogen Fertilizer: This product may be combined with liquid nitrogen fertilizer suitable for foliar application to accomplish Broadleaf weed control and fertilization of Corn, small grains or pastures in a single operation. Use this product in accordance with directions for these crops provided in this label. Use liquid fertilizer at rates specified by the supplier or Extension Service Specialist. Test for mixing compatibility by mixing spray ingredients in correct proportions in a clear glass jar before mixing in spray tank. A compatibility aid may be needed in some situations. Compatibility is best with liquid fertilizer solutions containing only nitrogen. Mixing with N-P-K solutions may not be satisfactory, even with the addition of a compatibility aid. Pre-mixing this product with 1 to 4 parts water may help in situations when mixing difficulty occurs.

Adjuvants for Pre-emergence and Pre-plant Applications: A nonionic surfactant or a crop oil concentrate may be added to the spray solution when this product is applied pre-emergence or pre-plant to increase control of large or hard-to-control weeds. Crop oil concentrate must contain at least 17% emulsifier and be used at 0.25% v/v (2 pints per 100 gallons of spray solution).

APPLICATION INSTRUCTIONS

Volume of Spray: Apply this product with calibrated spray equipment by ground or air using sufficient spray volume to provide adequate coverage of target weeds or as otherwise directed in specific use directions.

For broadcast application, apply the specified rate of this product by air in a minimum of 2 gallons of spray per acre and 10 gallons of spray per acre by ground. Use low-pressure sprays to minimize drift.

Where states have regulations that specify minimum spray volumes, they should be observed. In general, spray volume should be increased as crop canopy, height and weed density increase in order to obtain adequate spray coverage. Do not apply less than 2 gallons total spray volume per acre.

Rates of Application: Generally, lower rates in specified rate ranges will be satisfactory for more sensitive weeds species, when weeds are small and when environmental conditions are favorable for rapid growth. Use higher rates in the specified rate range for less sensitive species and under less favorable growing conditions. For crop uses, do not mix with oil or other adjuvants unless specifically directed on this label.

Spot Treatments: To prevent misapplication, apply spot treatments with a calibrated boom or with hand sprayers using a fixed spray volume per 1000 square feet as indicated below.

Hand-held Sprayers: This product may be applied using hand-held sprayers for spot applications. Apply the spray uniformly at a rate equivalent to a broadcast application. Rates in the below “Rate Conversion Table for Spot Treatments” are based on the application rate for an area of 1000 square feet.
Mix the amount of this product (fl. oz. or ml) corresponding to the desired broadcast rate in 1 to 3 gallons of spray. To calculate the amount of this product required for larger areas, multiply the value in the table (fl. oz. or ml) by the thousands of square feet to be treated. An area of 1000 square feet is approximately 10.5 x 10.5 yards (strides) in size.

Band Application: This product may be applied as a band treatment. Use the formula below to determine the appropriate rate and volume per treated acre.

Limitations, Restrictions, and Exceptions

Use Instructions

For best results, growth conditions should be favorable for active weed growth. Use high rate in rate range for less susceptible weeds, cover crops such as Alfalfa, weeds in advanced stages of development, or under less favorable growth conditions.

Pre-plant: Apply 7 to 14 days before planting Corn to control emerged Broadleaf weed seedlings or existing cover crops.

Pre-emergence: Apply any time after planting, but before Corn emerges to control Broad leaf weed seedlings or existing cover crops. Do not use on light sandy soils.

Use Precautions:
- Pre-plant or pre-emergence applications to light sandy soils are not recommended.
- Corn hybrids vary in tolerance to 2,4-D. Some are easily injured. Apply only to varieties known to be tolerant to 2,4-D. Consult the seed company or your Agricultural Experiment Station or Extension
Service Weed Specialist for this information.
- Corn treated with 2,4-D may exhibit temporary stem brittleness following application. During this time period, the crop is more susceptible to stem breakage from wind or cultivation.

USE RESTRICTIONS FOR FIELD CORN AND POP CORN:
- Pre-harvest Interval (PHI) is 7 days.
- Do not use treated crop as fodder for 7 days following application.
- Do not apply more than 4.3 pints of this product (3 Ibs. a.e.) per acre per crop cycle.
- Pre-plant or Pre-emergence: Limited to 1 pre-plant or pre-emergence application per crop cycle. Maximum of 1.4 pints of this product (1 Ib. a.e.) per acre per application.
- Post-emergence: Limited to 1 post-emergence application per crop cycle. Maximum of 0.7 pint of this product (0.5 Ib. a.e.) per acre per application.
- Pre-harvest: Limited to 1 pre-harvest application per crop cycle. Maximum of 2.1 pints (1.5 Ibs. a.e.) per acre per application.

Pre-Harvest Interval

7 days

Restricted Entry Interval

12 hours