CORN HYBRIDS WITH ROUNDUP READY 2 TECHNOLOGY - ANNUAL WEEDS
Product Description: This product is a postemergence, systemic herbicide with no soil residual activity. It is generally non-selective and gives broad-spectrum control of many annual weeds, perennial weeds, woody brush and trees. It is formulated as a water-soluble liquid and can be applied using most standard industrial or field sprayers after dilution and thorough mixing with water or other carriers according to label directions.
Time to Symptoms: This product moves through the plant from the point of foliage contact to and into the root system. Visible effects are a gradual wilting and yellowing of the plant that advances to complete browning of above ground growth and deterioration of underground plant parts. Effects are visible on most annual weeds within 2 to 4 days, but on most perennial weeds, effects may not be visible for 7 or more days. Extremely cool or cloudy weather following treatment may slow activity of this product and delay development of visual symptoms.
Stage of Weeds: Annual weeds are easiest to control when they are small. Best control of most perennial weeds is obtained when treatment is made at late growth stages approaching maturity. Refer to the “ANNUAL WEEDS RATE SECTION”, “PERENNIAL WEEDS RATE SECTION” and “WOODY BRUSH AND TREES RATE SECTION” for more information on specific weeds.
Always use the higher product application rate within the given range when weed growth is heavy or dense or when weeds are growing in an undisturbed (non-cultivated) area.
Reduced weed control may result when treating weeds with disease or insect damage, weeds heavily covered with dust, or weeds under poor growing conditions.
Cultural Considerations: Reduced control may result when application is made to annual or perennial weeds that have been mowed, grazed, or cut, and have not been allowed to re-grow to the specified stage for treatment.
Rainfastness: Heavy rainfall soon after application may wash this product off of the foliage and a repeat application may be required for adequate weed control.
Spray Coverage: For best results, spray coverage must be uniform and complete. Do not spray foliage to the point of runoff.
Mode of Action: The active ingredient in this product inhibits an enzyme found only in plants and microorganisms that is essential to the formation of specific amino acids.
No Soil Activity: Weeds must be emerged at the time of application to be controlled by this product. Weeds germinating from seed after application will not be controlled.
Plants arising from unattached underground rhizomes or root stocks of perennials that had not yet emerged at the time of application of this product will not be affected and will continue to grow.
Biological Degradation: Degradation of this product is primarily a biological process carried out by soil microbes.
Maximum Application Rates: The maximum application or use rates stated throughout this product’s labeling are given in units of volume (fluid ounces, pints, or quarts) of this product per acre. However, the maximum allowed application rates apply to this product combined with the use of any and all other herbicides containing the active ingredient glyphosate, whether applied separately or as tank mixtures, on a basis of total pounds of glyphosate (acid equivalents) per acre. If more than one glyphosate-containing product is applied to the same site within the same year, you must ensure that the total use of glyphosate does not exceed the maximum allowed. See the “INGREDIENTS” section of the label for necessary product information.
Except as otherwise specified in a crop section of the label, the combined total of all treatments must not exceed 8 quarts of this product (6 pounds of glyphosate acid) per acre per year. For applications in non-crop sites or in tree, vine, or shrub crops, the combined total of all treatments must not exceed 10.6 quarts of this product (8 pounds of glyphosate acid) per acre per year.
NOTE: Use of this product in any manner not consistent with the label may result in injury to persons, animals or crops, or have other unintended consequences.
WEED RESISTANCE MANAGEMENT
Glyphosate, the active ingredient in this product, is a Group 9 herbicide based on the mode of action classification system of the Weed Science Society of America. Any weed population may contain plants naturally resistant to Group 9 herbicides. Weed species resistant to Group 9 herbicides may be effectively managed utilizing another herbicide from a different Group or by using other cultural or mechanical practices.
Weed Management Practices
To minimize the occurrence of glyphosate-resistant biotypes observe the following weed management practices:
- Scout your fields before and after herbicide application.
- Start with a clean field, using either a burndown herbicide application or tillage.
- Control weeds early when they are relatively small.
- Add other herbicides (e.g. a selective and/or a residual herbicide) and cultural practices (e.g. tillage or crop rotation) where appropriate.
- One method for adding other herbicides into a continuous Roundup Ready system is to rotate to other Roundup Ready crops.
- Use the application rate for the most difficult to control weed in your field. Avoid tank mixtures with other herbicides that reduce the efficacy of this product (through antagonism), or with ones that encourage application rates of this product below those specified on the label.
- Control weed escapes and prevent weeds from setting seeds.
- Clean equipment before moving from field to field to minimize the spread of weed seed or plant parts.
- Use new commercial seed that is as free of weed seed as possible.
- Report any incidence of repeated non-performance of this product on a particular weed to your Monsanto representative, local retailer, or county extension agent.
Management of Glyphosate-Resistant Biotypes
Note : Appropriate testing is critical in order to determine if a weed is resistant to glyphosate. Call 1-800-ROUNDUP (1-800-768-6387) or contact your Monsanto representative to determine if resistance in any particular weed biotype has been confirmed in your area, or visit on the Internet www.weedresistancemanagement.com or www.weedscience.org. For more information see the “ANNUAL WEEDS RATE SECTION” and “PERENNIAL WEEDS RATE SECTION” of the label.
Directions for the control of biotypes confirmed to be resistant to glyphosate are made available on separately published supplemental labeling or Fact Sheets for this product and can be obtained from your local retailer or Monsanto representative.
Since the occurrence of new glyphosate-resistant weeds cannot be determined until after product use and scientific confirmation, Monsanto Company is not responsible for any losses that may result from the failure of this product to control glyphosate-resistant weed biotypes.
The following good agronomic practices can reduce the spread of confirmed glyphosate-resistant biotypes:
- If a naturally occurring resistant biotype is present in your field, this product can be tank-mixed or applied sequentially with an appropriately labeled herbicide with a different mode of action to achieve control.
- Cultural and mechanical control practices (e.g. crop rotation or tillage) can also be used as appropriate.
- One method for adding other herbicides into a continuous Roundup Ready system is to rotate to other Roundup Ready crops.
- Scout treated fields after herbicide application and control weed escapes, including resistant biotypes, before they set seed.
- Thoroughly clean equipment before leaving fields known to contain resistant biotypes.
Refer to Supplemental label for more additional informations FOR COTTON WITH THE ROUNDUP READY GENE
CORN HYBRIDS WITH ROUNDUP READY 2 TECHNOLOGY
Corn hybrids with Roundup Ready 2 Technology include Roundup Ready Corn 2 and seed products displaying the Roundup Ready 2 Technology logo.
USE INSTRUCTIONS: Refer to the following table for maximum application rates of this product with corn hybrids with Roundup Ready 2 Technology.
Maximum Application Rates
Combined total per year for all applications: 8 quarts per acre
Total of all Preplant, At-Planting, Preemergence applications: 5 quarts per acre
Total of all In-crop applications from emergence through 48-inch corn: 3 quarts per acre
Maximum Preharvest application rate after maximum kernel fill is complete and the crop is physiologically mature (black layer formed) until 7 days before harvest*: 1 quart per acre
*See PRECAUTIONS, RESTRICTIONS section for Preharvest application.
PRECAUTIONS, RESTRICTIONS: See the “ROUNDUP READY CROPS” section of the label for precautionary instructions regarding the use of this product in Roundup Ready crops. See the “PRODUCT INFORMATION” section of the label for more information on Maximum Application Rates. The use of the in-crop (over-the-top) rates described in these instructions on other than corn hybrids with Roundup Ready 2 Technology may cause crop injury and reduced yields.
Preplant, At-Planting, Preemergence
USE INSTRUCTIONS: This product may be applied alone or in a tank mixture before, during or after planting.
PRECAUTIONS, RESTRICTIONS: Maximum quantity of this product that may be applied for all preplant, at-planting and preemergence applications combined is 5 quarts per acre per season. Refer to individual tank-mix product label for restrictions and precautions; use according to the most restrictive precautionary statements for each product in the tank mixture.
NOTE: For maximum weed control, make a postemergence (in-crop) application of this product following the use of the preemergence residual products listed above.
For Annual Weeds:
When water carrier volumes are between 16 and 40 gallons per acre for ground applications
and between 6 and 15 gallons per acre for aerial applications, the following use rates will control the annual weeds listed in the table.
-1 quart per acre—grass and broadleaf annual weeds less than 6 inches in height or circumference and vines less than 3 inches in length.
-3 pints per acre—grass and broadleaf annual weeds 6 to 12 inches in height or circumference and vines 3 to 6 inches in length.
-2 quarts per acre—grass and broadleaf annual weeds greater than 12 inches in height or circumference and vines greater than 6 inches in length.
WHEN WATER CARRIER VOLUMES ARE BETWEEN 3 AND 15 GALLONS PER ACRE FOR GROUND APPLICATIONS AND BETWEEN 3 AND 5 GALLONS PER ACRE FOR AERIAL APPLICATIONS, USE THE RATES SPECIFIED FOR INDIVIDUAL WEEDS AS FOLLOW IN THE “ANNUAL WEEDS RATE TABLE (Alphabetically by Species)”.
Apply to actively growing annual weeds. Annual weeds are generally easiest to control when they are small.
Older, mature (hardened) annual weed species may require higher rates even if they meet the size requirements.
Maximum size refers to the maximum plant height, length of runners for vines, or circumference of rosette plants in inches.
Do not tank mix with soil residual herbicides when using these rates unless otherwise specified.
For weeds that have been mowed, grazed or cut, allow regrowth to occur prior to treatment.
This product may be used up to 64 fluid ounces per acre where heavy weed densities exist.
For details regarding recommended rates (in fl oz/acre) at different weed heights/lengths, please refer to the table in the label.
-For control of downy brome in no-till systems, use 24 fluid ounces per acre.
-Performance is better if application is made before this weed reaches the boot stage of growth.
-Use 24 fluid ounces per acre of this product to control wild buckwheat in the cotyledon to 2-leaf stage. Use 32 fluid ounces per acre to control 2- to 4-leaf wild buckwheat. For improved control of wild buckwheat over 2 inches in size, use sequential treatments of 32 fluid ounces followed by 32 fluid ounces of this product per acre.
-Do not treat kochia in the button stage.
-Control of Russian thistle may vary based on environmental conditions and spray coverage.
Whenever possible, a tank mixture with 2,4-D as described may improve control.
Annual Weeds—Hand-Held or Backpack Equipment
For control of weeds listed in the “ANNUAL WEEDS RATE TABLE” above, apply a 0.5-percent solution of this product to weeds less than 6 inches in height or runner length. Apply prior to seedhead formation in grass or bud formation in broadleaf weeds.
For annual weeds over 6 inches tall, or unless otherwise specified, use a 1-percent solution.
For best results, use a 2-percent solution on harder-to-control perennials, such as bermudagrass, dock, field bindweed, hemp dogbane, milkweed and Canada thistle.
When using application methods that result in less than complete coverage, use a 5-percent solution for annual and perennial weeds, and a 5 to 10-percent solution for woody brush and trees.