CorvusRegistration expired
BAYER - Herbicide

EPA # 0000264-01066-AA-0000000

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
Read entire label before using this product.

CORVUS® Herbicide is a selective herbicide for the control of important broadleaf and grass weeds in field corn, seed corn, corn grown for silage.
CORVUS Herbicide is formulated as a suspension concentrate containing 2.63 pounds of active ingredients per gallon [0.75 lbs Thiencarbazone-methyl a.i., 1.88 lbs isoxaflutole a.i.]. It also contains 1.25 pounds per gallon of the new corn safener Cyprosulfamide. CORVUS Herbicide will provide its most effective weed control when applied and subsequently moved into the soil by rainfall, sprinkler irrigation or mechanical tillage prior to weed emergence.
CORVUS Herbicide has multiple modes of actions: the first, inhibiting of enzymes that are essential to the protection of chlorophyll in plant leaves, and a second blocking the plant’s synthesis of certain amino acids/ protein synthesis. CORVUS Herbicide is effective in controlling glyphosate-, triazine-, PPO-, ALS- and plant growth regulant- herbicide resistant populations of weed species.

Performance of CORVUS Herbicide is not affected by the presence of weed biotypes resistant to glyphosate-, triazine-, PPO-, ALS- or growth-regulant herbicide modes of action. To help prevent the development of resistance to CORVUS Herbicide, always use the full labeled rates as shown on the label. If applying another solo postemergence HPPD herbicide (such as Laudis®, ArmezonTM, Impact® or Callisto®) following an previous Corvus Herbicide application, (two pass program), always include an additional effective mode of action herbicide(s) as a tank mix partner.

CORVUS Herbicide may be integrated into an overall weed and pest management strategy whenever the use of a herbicide is required. Practices known to reduce weed development (tillage, crop competition) and herbicide use (weed scouting, proper application timing) should be followed wherever possible. Consult local agricultural and weed authorities for additional IPM strategies established for your area.

Rotational crops vary in their response to low concentrations of CORVUS Herbicide remaining in the soil. The amount of CORVUS Herbicide that may be present in the soil depends on soil moisture, soil temperature, application rate, elapsed time since application and other environmental factors. When CORVUS Herbicide is used in combination with other products, always follow the most restrictive rotational crop requirements. The following rotational crops (refer to Table 2) may be planted after applying CORVUS Herbicide.

To reduce the potential of spray drift to non-target areas, apply this product using nozzles which deliver a coarse or larger spray droplet as defined by ASAE standard S-572 and as shown in nozzle manufacturer’s catalogs. Only apply this product when the potential for drift to adjacent non-target areas is minimal (e.g., when the wind is 10 MPH or less and is blowing away from sensitive areas). To avoid potential adverse effects to non-target areas, maintain a 25 foot buffer between the point of direct application and the closest downwind edge of sensitive terrestrial habitats (such as grasslands, forested areas, shelter belts, woodlots, hedgerows, riparian areas and shrub lands), sensitive freshwater habitats (such as lakes, rivers, sloughs, ponds, creeks, marshes, streams, reservoirs and wetlands) and estuarine/marine habitats.

CORVUS Herbicide may be used in either conventional, conservation tillage, or no-till crop management systems and may be applied preplant [surface–applied or incorporated (less than 2” deep)], preemergence or early postemergence. Corvus Herbicide will provide its most effective weed control when applied and subsequently moved into the soil by rainfall, sprinkler irrigation or mechanical tillage prior to weed emergence.
Refer to the ‘Specific Crop Use Recommendation’ section of the label for application timing information specific from each registered use of CORVUS Herbicide.
CORVUS Herbicide may be applied using either water or sprayable grade fluid fertilizer as a liquid carrier. CORVUS Herbicide may be applied by ground application only. Aerial application is not permitted.
CORVUS Herbicide may be applied as either a broadcast spray or as a band application.
As a broadcast spray, apply CORVUS Herbicide either alone or in tank mixtures in a minimum of 10 gallons of spray mixture per acre. Uniform, thorough spray coverage is important to achieve consistent weed control. Keep the spray boom at the lowest possible spray height above the target surface. Refer to the nozzle manufacturer’s recommendations for proper nozzle, pressure setting and sprayer speed for optimum product performance and minimal spray drift. Uneven application, sprayers not properly calibrated, or improper incorporation may decrease the level of weed control and/or increase the level of adverse crop response. Maintain a constant ground speed while applying this product to ensure proper distribution. Do not overlap spray patterns beyond equipment manufacturers recommendations as excessive rates may result in adverse crop responses and potential stand loss. Maintain adequate agitation at all times, including momentary stops.
When CORVUS Herbicide is applied as a band application, the application equipment must be carefully calibrated to prevent crop exposure to concentrations of CORVUS Herbicide that exceed the labeled rate for the soil type. It is critical to insure that the calibrated band width equates to actual band width realized in field applications. Bands actually delivered at a width narrower than targeted will concentrate the product and increase the risk for crop response.
Even flat spray tip nozzles and a band width of no less than 12” must be used.

If CORVUS Herbicide is to be tank mixed with liquid fertilizers or other pesticides, compatibility should be tested prior to mixing. To test for compatibility, use a small container and mix a small amount (0.5 to 1 qt) of spray, combining all ingredients in the same ratio as the anticipated use. If any indications of physical incompatibility develop, do not use this mixture for spraying. Indications of incompatibility usually will appear within 5-15 minutes after mixing. Read and follow all parts of the label of each tank-mix product.

Application with water or liquid fertilizer as a carrier: Fill the spray tank 1/4 to 1/2 of the required volume of water or liquid fertilizer prior to the addition of CORVUS Herbicide. Add the proper amount of CORVUS Herbicide, then add the rest of the water or liquid fertilizer to the desired level. Maintain sufficient agitation to ensure a uniform spray mixture during application. If CORVUS Herbicide is applied in a tank mixture with other pesticides, add CORVUS Herbicide to the spray tank first and ensure it is thoroughly dispersed before adding other pesticides. Continue to fill the tank with carrier to the desired volume while agitating. CONTINUE AGITATION DURING APPLICATION TO ENSURE A UNIFORM SPRAY MIXTURE.
Re-suspending SC Products in Spray Solution: Like other suspension concentrates (SC’s), CORVUS Herbicide will settle if left standing without agitation. If the spray solution is allowed to settle for one hour or more, reagitate the spray solution for a minimum of 10 minutes before application.

Application: Do not exceed maximum labeled rate for soil type. Spray overlaps produce areas of over application which increase the potential for crop damage.
In corn, the following Corvus components must not exceed per acre per 365 day period from all   sources:
0.04 pounds Thiencarbazone-methyl, 0.094 pounds Isoxaflutole, or 0.20 pounds Cyprosulfamide
Do not use CORVUS Herbicide in the same season as certain soil-applied organophosphate or carbamate insecticides (refer to the ‘Seed/Soil-Applied Insecticide Interaction Information’ section of the label).
Do not use CORVUS Herbicide on popcorn, or sweet corn.
Do not irrigate CORVUS Herbicide into coarse soils at planting time when soils are  saturated.
Do not apply solo HPPD inhibitor postmergence herbicides (Laudis®, ArmezonTM, Impact®, Callisto®) to corn that has been treated with CORVUS Herbicide in the same growing season.
Do not harvest field corn forage within 45 days of application of CORVUS Herbicide.

Do not contaminate water, food or feed by storage or disposal.

Store in a cool, dry secured storage area.

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. All such risks shall be assumed by the user or buyer.

CropsBBCHRegistred normPreharvest Interval
Corn, maize0 - 03.33 - 5.645