Prosaro 421 SC
EPA # 0000264-00862-AA-0000000
States Registered: AL AR AZ CO CT DE FL GA IA ID IL IN KS KY LA MA MD ME MI MN MO MS MT NC ND NE NH NJ NM NV NY OH OK OR PA RI SC SD TN TX UT VA VT WA WI WV WY
Always read and follow label instructions. Not all products are registered for use in every state. Please check with Bayer or your local Lead State Agency for product registration status.
PROSARO 421 SC Fungicide is a broad-spectrum systemic fungicide for the control of Ascomycetes, Basidiomycetes and Deuteromycetes diseases in barley, corn (field corn, field corn grown for seed, popcorn, and sweet corn), and wheat. Under conditions conducive to extended infection periods or high disease pressure, another registered fungicide may be needed once this product’s maximum application rates have been reached. Under these conditions use another fungicide registered for the crop/disease.
USE DIRECTIONS FOR SPECIFIC CROPS
PROSARO 421 SC FUNGICIDE provides control or suppression of many important diseases of barley, corn (field corn, field corn grown for seed, popcorn, and sweet corn), and wheat. When reference is made to disease suppression, suppression can mean either erratic control from good to fair or consistent control at a level below that obtained with the best commercial disease control products.
Disease: Fusarium Head Blight (Suppression) (Fusarium spp.). Leaf and Stem Diseases: Net Blotch (Pyrenophora teres); Powdery Mildew (Blumeria graminis f. sp. hordei); Scald (Rhynchosporium secalis); Spot Blotch (Bipolaris sorokiniana); Rusts (Puccinia spp.)
Rate: 6.5 - 8.2 fl oz per acre.
Straw cut after harvest may be fed or used for bedding.
PROSARO 421 SC FUNGICIDE may be applied by either ground, aerial or chemigation application equipment. For ground applications, apply a minimum of 10 gpa spray solution. For aerial applications, apply a minimum of 2 gpa spray solution. When applied through chemigation, large carrier volumes may result in reduced activity against Fusarium head blight.
Fusarium Head Blight (Suppression Only): The optimal time to apply PROSARO 421 SC FUNGICIDE is as a preventative foliar spray when barley heads on the main stem are fully emerged (~ Feekes Growth Stage 10.5). Spray equipment must be set to provide good coverage of barley heads. For thorough coverage of the barley head using ground application equipment, use forward, forward and backward mounted nozzles, or nozzles that have a two-directional spray. Nozzles should be operated within the spray pressure directions suggested by the manufacturer. For aerial applications, apply a minimum of 5 gpa spray solution.
Leaf and Stem Diseases:
Apply PROSARO 421 SC FUNGICIDE as a preventive foliar spray when the earliest disease symptoms appear on the leaves and stems. Barley fields should be observed closely for early disease symptoms, particularly when susceptible varieties are planted and/or under prolonged conditions favorable for disease development.
For optimum disease control, the lowest specified rate of a spray surfactant should be tank-mixed with PROSARO 421 SC FUNGICIDE.
Restrictions: Do not apply more than 8.2 fl oz of Prosaro 421 SC Fungicide per acre per crop year. Do not apply within 30 days of harvest. Grazing livestock or feeding of green forage is only permitted 6 or more days after the last application of PROSARO 421 SC FUNGICIDE.
CORN1 (field corn, field corn grown for seed, popcorn and sweet corn)
Disease: Anthracnose (Colletotrichum graminicola); Eye spot (Aureobasidium zeae); Gray leaf spot (Cercospora zeae-maydis); Northern corn leaf blight (Setosphaeria turcica)*; Northern corn leaf spot (Cochliobolus carbonum)*; Rust (Puccinia spp.); Southern corn leaf blight (Cochliobolus heterostrophus)*.
*The above diseases are also known as Helminthosporium leaf blight
Rate: 6.5 fl oz per acre.
PROSARO 421 SC FUNGICIDE may be applied by either ground, aerial or chemigation application equipment. For ground applications, apply a minimum of 10 gpa spray solution. For aerial applications, apply a minimum of 2 gpa spray solution.
Adjuvants: Under some conditions, the lowest specified labeled rate of a spray adjuvant may be tank-mixed with PROSARO 421 SC FUNGICIDE to improve performance. Disease Control: Apply PROSARO 421 SC FUNGICIDE when disease first appears. In sweet corn, continue applications on a 5- to 14-day interval if favorable conditions for disease development persist. In all other corn, continue applications on a 7- to 14-day interval if favorable conditions for disease development persist. Application of PROSARO 421 SC FUNGICIDE is not recommended at times when corn is under severe environmental stress conditions.
Restrictions: Do not apply more than 26 fl oz of PROSARO 421 SC FUNGICIDE per acre per crop season. For field corn, field corn grown for seed and popcorn, do not apply within 21 days before the harvest of forage and 36 days before the harvest of grain or fodder. For sweet corn, do not apply within 7 days before harvest of ears or forage and 49 days before the harvest of fodder. Do not use adjuvants if PROSARO 421 SC FUNGICIDE is applied between corn growth stages V8 (8 leaf collar) and VT (lowest branch of the tassel is visible but silks have not emerged).
1 Not for use on corn in New York.
WHEAT (spring, durum, and winter)
Disease: Fusarium Head Blight (Fusarium spp.) Leaf and Stem Diseases: Powdery Mildew (Blumeria graminis f. sp. tritici); Rusts (Puccinia spp.); Septoria Leaf and Glume Blotch (Septoria tritici); Stagonospora Blotch (Stagonospora nodorum); Tan Spot (Pyrenophora tritici-repentis).
Rate: 6.5 - 8.2 fl oz per acre.
Application Directions: Straw may be fed or used for bedding.
Spray Equipment/Volumes: PROSARO 421 SC FUNGICIDE may be applied by either ground, aerial or chemigation application equipment. For ground applications, apply a minimum of 10 gpa spray solution. For aerial applications, apply a minimum of 2 gpa spray solution. When applied through chemigation, large carrier volumes may result in reduced activity against Fusarium head blight.
Fusarium Head Blight:
The optimal time to apply PROSARO 421 SC FUNGICIDE is as a preventative foliar spray at early flower (Feekes Growth Stage 10.51). Spray equipment must be set to provide good coverage to wheat heads. For thorough coverage of the wheat head using ground application equipment, use forward, forward and backward mounted nozzles, or nozzles that have a two-directional spray. Operate nozzles within the spray pressure directions suggested by the manufacturer. For aerial applications, apply a minimum of 5 gpa spray solution.
Leaf and Stem Diseases:
Apply PROSARO 421 SC FUNGICIDE as a preventive foliar spray when the earliest disease symptoms appear on the leaves and stems. Wheat fields should be observed closely for early disease symptoms, particularly when susceptible varieties are planted and/or under prolonged conditions favorable for disease development.
For optimum disease control, the lowest specified rate of a spray surfactant should be tank-mixed with PROSARO 421 SC FUNGICIDE.
Restrictions: Do not apply more than 8.2 fl oz of PROSARO 421 SC FUNGICIDE applied per acre per crop year. Do not apply within 30 days of harvest. Do not allow livestock to graze or feed green forage to livestock prior to 6 days after treatment with PROSARO 421 SC FUNGICIDE.
OBSERVE THE FOLLOWING RESTRICTIONS WHEN SPRAYING IN THE VICINITY OF AQUATIC AREAS SUCH AS LAKES, RESERVOIRS, RIVERS, PERMANENT STREAMS, MARSHES OR NATURAL PONDS, AND ESTUARIES.
Apply only during alternate years in fields adjacent to aquatic areas listed above.
Do not apply by ground or air within 100 feet of aquatic areas listed above.
Do not cultivate within 10 feet of an aquatic area to allow growth of a vegetative filter strip.
Spray Drift Management: For aerial applications, the spray boom should be mounted on the aircraft so as to minimize drift caused by wing tip vortices. The minimum practical boom length should be used, and must not exceed 75% of the wingspan or rotor diameter.
Use the largest droplet size consistent with pest control. Formation of very small droplets may be minimized by appropriate nozzle selection, by orienting nozzles away from the air stream as much as possible and by avoiding excessive spray boom pressure. Apply in a minimum of 5 gallons of spray solution per acre by aircraft spray equipment.
Spray should be released at the lowest possible height consistent with good pest control and flight safety. Applications more than 10 feet above the crop canopy should be avoided.
Make aerial or ground applications when wind velocity favors on-target product deposition (approximately 3 to 10 mph). Do not apply when wind velocity exceeds 15 mph. Avoid applications when wind gusts approach 15 mph.
Risk of exposure to sensitive aquatic areas can be reduced by avoiding applications when wind direction is toward the aquatic area.
Low humidity and high temperatures increase the evaporation rate of spray droplets and therefore the likelihood of spray drift to aquatic areas. Avoid spraying during conditions of low humidity and/or high temperature.
Do not make aerial or ground applications during temperature inversions. Inversions are characterized by stable air and increasing temperatures with height above the ground. Mist or fog may indicate the presence of an inversion in humid areas. The applicator may detect the presence of an inversion by producing smoke and observing a smoke layer near the ground surface.
DIRECTIONS FOR USE
It is a violation of federal law to use this product in a manner inconsistent with its labeling.
Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulation.
AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR part 170. This Standard contains requirements for the protection of agricultural workers on farms, forests, nurseries, and greenhouses, and handlers of agricultural pesticides. It contains requirements for training, decontamination, notification, and emergency assistance. It also contains specific instructions and exceptions pertaining to the statements on this label about personal protective equipment (PPE) and restricted-entry interval (REI). The requirements in this box only apply to uses of this product that are covered by the Worker Protection Standard. Do not enter or allow worker entry into treated areas during the REI of 12 hours.
PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that involves contact with anything that has been treated, such as plants, soil, or water is:
• Chemical-resistant gloves made of any waterproof material.
• Shoes plus socks
Resistance Management Statement
PROSARO 421 SC Fungicide is a Group 3 fungicide, which exhibits no known cross-resistance to other fungicide groups. However, fungal pathogens are known to develop resistance to products with the same mode of action when used repeatedly. Any fungal population may contain or develop individuals that are resistant to PROSARO 421 SC and other Group 3 fungicides. If Group 3 fungicides are used repeatedly in the same field or in successive years as the primary method of control for targeted diseases, the resistant isolates may eventually dominate the fungal population. Because resistance development cannot be predicted, the use of this product should conform to resistance management strategies established for the crop and use area. Such strategies may include rotation and /or tank mixing with products having different modes of action or limiting the total number of applications per season. Contact your local extension specialist, certified crop advisor, and/or manufacturer for fungicide resistance management and/or integrated disease management directions for specific crops and pathogen populations. Bayer CropScience encourages responsible resistance management to ensure effective long-term control of the fungal diseases on this label.
PROSARO 421 SC FUNGICIDE may be applied by either ground, aerial and/or chemigation application equipment. Equipment must be properly calibrated before use.
For ground application, apply in a minimum of 10 gallons of spray solution per acre. For aerial application, apply in a minimum of 2 gallons of spray solution per acre unless stated differently in the USE DIRECTIONS FOR SPECIFIC CROPS section. Check equipment calibration frequently. Complete coverage and uniform application are essential for the most effective results, especially when lower spray volumes are applied. If necessary, increase the spray volume per acre for complete crop coverage. Mixing Procedures
Prepare no more spray mixture than is necessary for the immediate operation. Thoroughly clean spray equipment before using this product. Maintain maximum agitation throughout the spray operation. Do not let the spray mixture stand overnight in the spray tank. Flush the spray equipment thoroughly following each use and apply the rinsate to the previously treated area or dispose of the rinsate according to local regulations. Do not tank mix with products containing a prohibition against tank mixing. Follow the most restrictive labeling requirements of any tank mix product.
PROSARO 421 SC FUNGICIDE Alone: Add 1/2 of the required amount of water to the mix tank. With the agitator running, add the PROSARO 421 SC FUNGICIDE to the tank. Continue agitation while adding the remainder of the water. Begin application of the solution after the product has completely and uniformly dispersed into the mix water. Maintain agitation until all of the mixture has been applied.
PROSARO 421 SC FUNGICIDE + Tank-Mix Partners: Add 1/2 of the required amount of water to the mix tank. Start the agitator running before adding any of the tank-mix partners. In general, tank-mix partners should be added in this order: products packaged in water-soluble packaging*, wettable powders, wettable granules (dry flowables), liquid flowables, liquids, and emulsifiable concentrates. Always allow each tank-mix partner to become fully and uniformly dispersed before adding the next product. Provide sufficient agitation while adding the remainder of the water. Maintain agitation until all of the mixture has been applied.
* Note: When using PROSARO 421 SC FUNGICIDE in tank mixtures, all products in water-soluble packaging should be added to the tank before any other tank-mix partner, including PROSARO 421 SC FUNGICIDE. Allow the water-soluble packaging to completely disperse before adding any other tank-mix partner to the tank.
If using PROSARO 421 SC FUNGICIDE in a tank mixture, observe all directions for use, crop/sites, use rates, dilution ratios, precautions, and limitations; which appear on the tank-mix product label. No label dosage rate must be exceeded, and the most restrictive label precautions and limitations must be followed. This product must not be mixed with any product that prohibits such mixing. Tank mixtures or other applications of products referenced on this label are permitted only in those states in which the referenced products are registered.
PROSARO 421 SC FUNGICIDE is compatible with most insecticide, fungicide, herbicide, and foliar nutrient products. However, the physical compatibility of PROSARO 421 SC FUNGICIDE with tank-mix partners should be tested before use. To determine the physical compatibility of PROSARO 421 SC FUNGICIDE with other products, use a jar test, as described below.
Using a quart jar, add the proportionate amounts of the products to 1 qt. of water. Add wettable powders and water-dispersible granular products first, then liquids and emulsifiable concentrates last. After thoroughly mixing, let stand for at least 5 minutes. If the combination remains mixed or can be remixed readily, it is physically compatible. Once compatibility has been proven, use the same procedure for adding required ingredients to the spray tank. For further information, contact your local Bayer CropScience representative.
The crop safety of all potential tank mixes including additives and other pesticides on all crops has not been tested. Before applying any tank mixture not specified on this label, the safety to the target crop should be confirmed. To test for crop safety, apply PROSARO 421 SC FUNGICIDE to the target crop in a small area and in accordance with label instructions for the target crop.
Aerial Application: Avoid application under conditions when uniform coverage cannot be obtained or when excessive spray drift may occur. Aerial application is prohibited in New York State.
Chemigation Application: Apply PROSARO 421 SC FUNGICIDE through irrigation equipment only to crops for which chemigation is specified on this label.
PROSARO 421 SC FUNGICIDE alone or in combination with other pesticides, which are registered for application through irrigation systems, may be applied through irrigation systems. Apply this product only through center pivot, solid set, hand move, or moving wheel irrigation systems. Do not apply this product through any other type of irrigation system. Illegal pesticide residues in the crop can result from nonuniform distribution of treated water. If you have questions about calibration, you should contact State Extension Service specialists, equipment manufacturers, or other experts. Do not connect an irrigation system (including greenhouse systems) used for pesticide application to a public water system, unless the pesticide label-prescribed safety devices for public water systems are in place. A person knowledgeable of the chemigation system and responsible for its operation, or under the supervision of the responsible person, shall shut the system down and make necessary adjustments should the need arise.
1. The system must contain a functional check-valve, vacuum relief valve, and low-pressure drain appropriately located on the irrigation pipeline to prevent water-source contamination from backflow.
2. The pesticide injection pipeline must contain a functional, automatic, quick-closing check-valve to prevent the flow of fluid back toward the injection pump.
3. The pesticide injection pipeline must also contain a functional, normally closed, solenoid-operated valve located on the intake side of the injection pump and connected to the system interlock to prevent fluid from being withdrawn from the supply tank when the irrigation system is either automatically or manually shut down.
4. The system must contain functional interlocking controls to automatically shut off the pesticide injection pump when the water pump motor stops.
5. The irrigation line or water pump must include a functional pressure switch, which will stop the water pump motor when the water pressure decreases to the point where pesticide distribution is adversely affected.
6. Systems must use a metering pump, such as a positive displacement injection pump (e.g., diaphragm pump), effectively designed, and constructed of materials that are compatible with pesticides and capable of being fitted with a system interlock.
7. Do not apply when wind speed favors drift beyond the area intended for treatment.
Center Pivot Irrigation Equipment
Notes: (1) Use only with drive systems, which provide uniform water distribution. (2) Do not use end guns when chemigating PROSARO 421 SC FUNGICIDE through center pivot systems because of non-uniform application.
Determine the size of the area to be treated. Determine the time required to apply 1/8-1/2 inch of water over the area to be treated when the system and injection equipment are operated at normal pressures as recommended by the equipment manufacturer. When applying PROSARO 421 SC FUNGICIDE through irrigation equipment use the lowest obtainable water volume while maintaining uniform distribution. Run the system at 80-95% of the manufacturer’s rated capacity. Using water, determine the injection pump output when operated at normal line pressure. Determine the amount of PROSARO 421 SC FUNGICIDE required to treat the area covered by the irrigation system. Add the required amount of PROSARO 421 SC FUNGICIDE and sufficient water to meet the injection time requirements to the solution tank. Make sure the system is fully charged with water before starting injection of the PROSARO 421 SC FUNGICIDE solution. Time the injection to last at least as long as it takes to bring the system to full pressure. Maintain constant solution tank agitation during the injection period. Continue to operate the system until the PROSARO 421 SC FUNGICIDE Fungicide solution has cleared the sprinkler head.
Solid Set, Hand Move, and Moving Wheel Irrigation Equipment
When applying PROSARO 421 SC FUNGICIDE through irrigation equipment use the lowest obtainable water volume while maintaining uniform distribution. Determine the amount of PROSARO 421 SC FUNGICIDE required to treat the area covered by the irrigation system. Add the required amount of PROSARO 421 SC FUNGICIDE into the same quantity of water used to calibrate the injection period. Operate the system at the same pressure and time interval established during the calibration. Stop injection equipment after treatment is completed. Continue to operate the system until the PROSARO 421 SC FUNGICIDE solution has cleared the last sprinkler head.
Adjuvants: PROSARO 421 SC FUNGICIDE is recommended to be used with a registered non-ionic surfactant at the lowest specified labeled rate for most uses. Refer to the USE DIRECTIONS FOR SPECIFIC CROPS for adjuvant recommendations on corn.
Spray Drift Directions
Do not make applications when conditions favor drift beyond the target application area. When drift may be a problem, take measures to reduce drift, including:
1. Do not spray if wind speeds are or become excessive. Do not spray if wind speed is 15 mph or greater. If non-target crops are located downwind, use caution when spraying if wind is present. Do not spray if winds are gusty. 2. Use caution when conditions are favorable for drift (high temperatures, drought, and low relative humidity). 3. Do not apply when temperature inversion exists. If inversion conditions are suspected, consult with local weather services before making an application. ROTATIONAL RESTRICTIONS Treated areas may be replanted with dry beans, peanuts and soybeans as well as any crop specified on this label as soon as practical after last application. For additional crops, do not plant back within 120 days of last application.
STORAGE AND DISPOSAL
Do not contaminate water, food, or feed by storage or disposal.
Pesticide Storage: Store in a cool, dry place and in such a manner as to prevent cross contamination with other pesticides, fertilizers, food, and feed. Store in original container and out of the reach of children, preferably in a locked storage area.
Handle and open container in a manner as to prevent spillage. If container is leaking, invert to prevent leakage. If the container is leaking or material is spilled for any reason or cause, carefully dam up spilled material to prevent runoff. Refer to Precautionary Statements on label for hazards associated with the handling of this material. Do not walk through spilled material. Absorb spilled material with absorbing type compounds and dispose of as directed for pesticides below. In spill or leak incidents, keep unauthorized people away.
Pesticide Disposal: Wastes resulting from the use of this product may be disposed of on site or at an approved waste disposal facility.
Non-Seed Treatment Products in Non-Refillable Containers
Rigid, Non-refillable containers (equal to or less than 5 gallons)
Non-refillable container. Do not reuse or refill this container. Offer for recycling, if available. Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple rinse as follows: Empty the remaining contents into application equipment or a mix tank and drain for 10 seconds after the flow begins to drip. Fill the container 1/4 full with water and recap. Shake for 10 seconds. Pour rinsate into application equipment or a mix tank or store rinsate for later use or disposal. Drain for 10 seconds after the flow begins to drip. Repeat this procedure two more times.
Pressure rinse as follows: Empty the remaining contents into application equipment or a mix tank and continue to drain for 10 seconds after the flow begins to drip. Hold container upside down over application equipment or mix tank or collect rinsate for later use or disposal. Insert pressure rinsing nozzle in the side of the container, and rinse at about 40 PSI for at least 30 seconds. Drain for 10 seconds after the flow begins to drip.
Once container is rinsed, offer for recycling if available or puncture and dispose of in a sanitary landfill.
Rigid Non-refillable Containers that are too large to shake (i.e., with capacities greater than 5 gallons or 50 lbs)
Non-refillable container. Do not reuse or refill this container. Refer to Bottom Discharge IBC information as follows.
Bottom Discharge IBC (e.g. – Schuetz Caged IBC or Snyder Square Stackable)
Pressure rinsing the container before final disposal is the responsibility of the person disposing of the container. To pressure rinse the container before final disposal, empty the remaining contents from the IBC into application equipment or mix tank. Raise the bottom of the IBC by 1.5 inches on the side which is opposite of the bottom discharge valve to promote more complete product removal. Completely remove the top lid of the IBC. Use water pressurized to at least 40 PSI to rinse all interior portions. Continuously pump or drain rinsate into application equipment or rinsate collection system while pressure rinsing. Continue pressure rinsing for 2 minutes or until rinsate becomes clear. Replace the lid and close bottom valve.
Once container is rinsed, offer for recycling if available or puncture and dispose of in a sanitary landfill or by incineration.
IMPORTANT: READ BEFORE USE
Read the entire Directions for Use, Conditions, Disclaimer of Warranties and Limitations of Liability before using this product. If terms are not acceptable, return the unopened product container at once.
By using this product, user or buyer accepts the following Conditions, Disclaimer of Warranties and Limitations of Liability.
CONDITIONS: The directions for use of this product are believed to be adequate and must be followed carefully. However, it is impossible to eliminate all risks associated with the use of this product. Crop injury, ineffectiveness or other unintended consequences may result because of such factors as weather conditions, presence of other materials, or the manner of use or application, all of which are beyond the control of Bayer CropScience. To the extent consistent with applicable law, all such risks shall be assumed by the user or buyer.
DISCLAIMER OF WARRANTIES: TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, BAYER CROPSCIENCE MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE, THAT EXTEND BEYOND THE STATEMENTS MADE ON THIS LABEL. No agent of Bayer CropScience is authorized to make any warranties beyond those contained herein or to modify the warranties contained herein. TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, BAYER CROPSCIENCE DISCLAIMS ANY LIABILITY WHATSOEVER FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT.
LIMITATIONS OF LIABILITY: TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, THE EXCLUSIVE REMEDY OF THE USER OR BUYER FOR ANY AND ALL LOSSES, INJURIES OR DAMAGES RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT, WHETHER IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, SHALL NOT EXCEED THE PURCHASE PRICE PAID, OR AT BAYER CROPSCIENCE’S ELECTION, THE REPLACEMENT OF PRODUCT.
|Registered for cultures||Rate||Preharvest Interval|
|Spring barley||6.5 - 8.2 fl oz||30|
|Winter barley||6.5 - 8.2 fl oz||30|
|Corn||6.5 fl oz||36|
|Sweet corn||6.5 fl oz||49|
|Winter wheat||6.5 - 8.2 fl oz||30|
|Spring wheat||6.5 - 8.2 fl oz||30|