SOYBEAN - REDUCED RATE PROGRAMS - MEDIUM SOIL (1.0-2.0% S.O.M.)
Authority MTZ DF Herbicide is a dry flowable formulation to be mixed with water and sprayed for selective preemergence or preplant incorporated weed control in soybeans and sugarcane. When applied according to the instructions on the label, Authority MTZ DF Herbicide will control listed broadleaf, and sedge weeds, and provide grass suppression.
Authority MTZ DF Herbicide may be applied in the fall or spring. When applied at recommended rates in the fall, corn or soybeans can be planted in the spring.
The mode of action of Authority MTZ DF Herbicide involves uptake by weed roots and shoots. Preemergence and preplant incorporated applications of Authority MTZ DF Herbicide require rainfall or irrigation to activate the herbicide. The amount of rainfall or irrigation required for activation following application depends on existing soil moisture, organic matter content and soil texture. If adequate moisture (1/2” to 1”) is not received within 7 to 10 days after the Authority MTZ DF Herbicide treatment, a shallow cultivation may be needed to obtain desired weed control. When sufficient moisture is received after dry conditions, Authority MTZ DF Herbicide will provide control of susceptible germinating weeds.
Proper handling instructions: This product may not be mixed or loaded within 50 feet of any wells (including abandoned wells and drainage wells), sink holes, perennial or intermittent streams and rivers, and natural or impounded lakes and reservoirs. This setback does not apply to properly capped or plugged abandoned wells and does not apply to impervious pads or properly diked mixing/loading areas. Operations that involve mixing, loading rinsing, or washing of this product into or from pesticide handling or application equipment or containers within 50 feet of any well are prohibited unless conducted on an impervious pad constructed to withstand the weight of the heaviest load that may be positioned on or moved across the pad. Such a pad shall be designed and maintained to contain any product spills or equipment leaks, container or equipment rinse or washwater, and rainwater that may fall on the pad. Surface water shall not be allowed to either flow over or from the pad, which means the pad must be self contained. The pad shall be sloped to facilitate material removal. An unroofed pad shall be of sufficient capacity to contain at a minimum 110% of the capacity of the largest pesticide container or application equipment on the pad. A pad that is covered by a roof of sufficient size to completely exclude precipitation from contact with the pad shall have a minimum containment capacity 100% of the largest pesticide container or application equipment on the pad. Containment capacities as described above shall be maintained at all times. The above specific minimum containment capacities do not apply to vehicles when delivering pesticide shipments to the mixing/loading site. States may have in effect additional requirements regarding wellhead setbacks and operation containment.
GENERAL APPLICATION INFORMATION
Authority MTZ DF Herbicide is labeled for use on soybeans and sugarcane. DO NOT use on any other crops.
Utilize a boom and nozzle sprayers equipped with the appropriate nozzles, and screens and adjusted to provide optimum spray distribution and coverage at the appropriate operating pressures. Utilize nozzles that produce minimal amounts of fine spray droplets to avoid spray drift or inadequate foliar and soil coverage. Apply a minimum of 10 gallons of finished spray per acre. Be aware that overlaps and slower ground speeds while starting, stopping, or turning while spraying may result in excessive application and subsequent response.
Sprayer must be accurately calibrated before application. Check sprayer during application to be sure it is working properly.
Water or liquid fertilizer must be used as the carrier for Authority MTZ DF Herbicide, when applied alone, or when tank mixed with other soybean or sugarcane herbicides. A jar test for compatibility of liquid fertilizer and Authority MTZ DF Herbicide tank mix is recommended if the compatibility of the liquid fertilizer and Authority MTZ DF Herbicide is unknown.
Continuous agitation during application is required. Avoid overlap. Shut off spray booms while turning, slowing, or stopping, as over application may result. Do not store the sprayer overnight or for any extended period of time with the Authority MTZ DF Herbicide spray mixture remaining in the tank.
Do not premix Authority MTZ DF Herbicide solutions in nurse tanks.
Authority MTZ DF Herbicide has been tested on a number of soybean cultivars, however, it has not been tested on all soybean varieties. The vast majority of cultivars tested when used according to label guidelines have demonstrated tolerance to Authority MTZ DF Herbicide. A limited number of soybean cultivars have shown some level of injury when used according to label guidelines and should not be planted when an Authority MTZ DF Herbicide program is planned.
Authority MTZ DF Herbicide is not recommended for use on the following soybean varieties: Altona, AP55, AP 71, Asgrow 6520, Burlison, Coker 102, Coker 156, Dassel, GL 3202, Govan, Maple Amber, NB 3665, NKS 1884, Paloma 350, Portage, Regal, Semmes, Terra-Vig 505, Terra-Vig 606, Tracy, Vansoy, and Vinton 81. For further information regarding soybean tolerance to an Authority MTZ DF Herbicide treatment consult University or Extension weed management specialists for additional information on specific local varieties or cultivars and any other pertinent information on Authority MTZ DF Herbicide under specific local conditions prior to applying product.
If cool/cold weather or heavy rainfall occurs immediately following an Authority MTZ DF Herbicide application, soybean stunting or stand loss could occur. Yields have not been affected where early season stunting has occurred. Injury to soybeans can also occur under the following conditions: (1) excessive rate for soil type, (2) boom overlap, (3) improper sprayer calibration, (4) error in mixing procedures, (5) when soils have a calcareous surface area or pH greater than 7.5, (6) soil incorporation deeper than recommended, (7) when applied with organophosphate pesticides, (8) when heavy rains occur after application, especially in poorly drained areas, (9) when soybeans are planted less than 1 1/2 inches deep, (10) on any soil with less than 0.5% organic matter.
BAND TREATMENT APPLICATIONS
For band treatments, apply the broadcast equivalent rate and volume per treated acre. To determine these, please refer in the formula given in the label.
When applied in accordance with the General Application information and the specific crop use directions, Authority MTZ DF Herbicide applied alone or in recommended tank mixtures will provide control of the listed weeds.
GRASSES (Suppression Only): Broadleaf signalgrass; Crabgrass, large; Crabgrass, smooth; Goosegrass; Johnsongrass, seedling; Orchardgrass; Panicum, fall; Panicum, Texas
SEDGES (Provide suppression only): Nutsedge, purple; Nutsedge, yellow; Sedge, annual
Utilize a boom and nozzle ground sprayer equipped with the appropriate nozzles, spray tips and screens and adjusted to provide optimum spray distribution and coverage at the appropriate operating pressures. Utilize nozzles that produce minimal amounts of fine spray droplets to avoid spray drift or inadequate foliar and/or soil coverage. Apply a minimum of 10 gallons of finished spray per acre by ground. Be aware that overlaps and slower ground speeds while starting, stopping or turning while spraying may result in excessive application and subsequent crop response.
Do not apply when wind speed favors drift beyond the area intended for treatment.
Use nozzle types and arrangements that will provide optimum coverage while producing a minimal amount of fine droplets. Apply sufficient spray volume to achieve adequate coverage. Apply a minimum of 5 gallons of finished spray per acre.
Do not apply when wind speed favors drift beyond the area intended for treatment.
Authority MTZ DF Herbicide may be applied as a fall treatment to the stubble of harvested crops for the burndown of existing vegetation and preemergence control of labeled weeds the following spring in no-till and conservation tillage production systems. Authority MTZ DF Herbicide can be applied to the stubble of a harvested crop in no-till or to the soil surface of conservation tillage fields after harvest when the sustained soil temperature is 55 degrees F and falling at a soil depth of 4 inches. Apply after September 30 in those areas North of Interstate 90 and after October 15 in those areas North of Interstate 40. To obtain adequate weed control in all areas soils must have sustained temperature of 55 degrees F or lower. Applications to ridge till production systems must be made after the formation of ridges or beds.
If weeds are emerged at the time of application, utilize a tank mixture with a suitable burndown herbicide at labeled rates. Fall applied burndown treatments should be made with a minimum of 15 gallons per acre to achieve adequate coverage of the weeds being treated. Gallonage should be increased where weed density is high or heavy crop residue levels are present. When making burndown applications to emerged weeds, the addition of adjuvants such as COC or MSO to the spray mixture can be used to enhance the burndown activity of the application. If weeds are present at time of Authority MTZ DF Herbicide application apply with appropriate burndown herbicides for improved control of existing weeds. Refer to product labels for use rates and instructions.
Authority MTZ DF Herbicide may be applied up to 30-45 days prior to planting (Early Preplant) in no-till or minimum till cropping systems. For applications earlier than 30 days prior to planting, the high rate in the rate range may be needed for extended residual. Authority MTZ DF Herbicide provides limited burndown of small weeds. For complete burndown, a companion burndown herbicide labeled for use in soybeans should be used at labeled rates. The addition of crop oil concentrate at 1 quart per acre or non-ionic surfactant at 0.25% will increase the burndown effectiveness of Authority MTZ DF Herbicide.
Authority MTZ DF Herbicide may be applied preplant incorporated prior to planting soybeans. Authority MTZ DF Herbicide may be applied alone or in combination with other preplant incorporated herbicides labeled for soybeans. Do not incorporate deeper than 2 inches. Improper soil incorporation may result in erratic weed control and/or crop injury. Authority MTZ DF Herbicide may be followed by labeled postemergence soybean herbicides for increased control of grass and broadleaf weeds. Always follow the most restrictive label when tank mixing.
Authority MTZ DF Herbicide can be applied from 30 days before planting and up to 3 days after planting, but before the crop seed germinate to prevent injury to emerging crop seedlings. Authority MTZ DF Herbicide applied after crop emergence will cause severe injury to the crop. Please refer to section 13 for more information regarding soybean tolerance Authority MTZ DF Herbicide can be applied alone or in combination with other labeled soybean herbicides for preemergence grass control. Authority MTZ DF Herbicide can be applied preemergence following the use of a preplant incorporated grass herbicide labeled for use on soybeans. If weeds are present at time of Authority MTZ DF Herbicide application apply with appropriate burndown herbicides for improved control of existing weeds. Refer to product labels for use rates and instructions. Properly closed planter seed furrows are required before Authority MTZ DF Herbicide application to avoid crop injury.
Authority MTZ DF Herbicide may be tank mixed with other products containing metribuzin as long as the total seasonal amount of metribuzin is not exceeded.
Reduced Rate Programs (Soybeans)
Fall, Early Pre-Plant, Pre-plant Incorporated, Preemergence
Conservation or Conventional Tillage
(Reduced Rates for the Suppression of Weeds Listed to Reduce Early Season Weed Competition in Glyphosate Tolerant Soybean Systems)
- For fall applications use the higher rate for the appropriate soil texture and organic matter. Use the higher rate for suppression of grasses and sedges.
- Do not apply to soils with less than 1% organic matter.
Adverse crop response can occur on soils with pH greater than 7.5. To reduce adverse crop response, use the minimum rate for the appropriate % organic matter and soil texture on soils with pH greater than 7.5.
REDUCED RATE Authority MTZ DF Herbicide PROGRAMS FOLLOWED BY POSTEMERGENCE HERBICIDE TREATMENTS (RATE TABLE 2)
Authority MTZ DF Herbicide may be applied as an early preplant, preplant incorporated or preemergence treatment followed by labeled postemergence soybean herbicides for increased control of grass and broadleaf weeds. Authority MTZ DF Herbicide may also be followed by a postemergence applications of a glyphosate product to glyphosate tolerant soybeans. Apply the recommended application rate of Authority MTZ DF Herbicide for suppression of weeds in glyphosate tolerant soybeans, maintaining control with sequential applications of registered postemergence herbicides. Refer to the partner product labels for specific use directions, weed control claims, precautionary statements, and restrictions.
If initial planting of soybeans fails to produce a stand due to adverse environmental conditions, only soybeans may be replanted in fields treated with Authority MTZ DF Herbicide. Do not retreat field with a second application of Authority MTZ DF Herbicide or crop injury may occur. Do not replant treated fields with any crop at intervals that are inconsistent with the Rotational Crop Guidelines found on the label for Authority MTZ DF Herbicide. When recommended tank mix combinations are used, consult the product label for replanting and recropping instructions and observe the directions that are the most restrictive.
Do not apply Authority MTZ DF Herbicide after soybeans have emerged. Severe injury will occur when Authority MTZ DF Herbicide applications are made after soybean emergence.
Do not apply more than 33 ounces (0.928 lbs active) per acre of Authority MTZ DF Herbicide per twelve month season. The twelvemonth period is considered to begin upon the initial Authority MTZ DF Herbicide application.
Do not apply to soils classified as Sand, which have less than 1% organic matter.
Do not apply Authority MTZ DF Herbicide to frozen soil.
Do not incorporate deeper than 2 inches.
Do not graze treated soybean or harvest for forage or hay.