crop-chem-docs/corpus/epa_ppls/524-549.md

RD 1617 HERBICIDE

• EPA Reg No: 524-549
• Registrant: BAYER CROPSCIENCE, LLC
• Signal word: Caution
• Active ingredients: Glyphosate, potassium salt (48.7%)
• Label accepted: 2023-04-06
• Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000524-00549-20230406.pdf

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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, DC 20460 OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION

Fast Track Label Acceptable v.20220527 April 6, 2023

Gaganpreet Kaur Senior Regulatory Affairs Manager Bayer CropScience LP 800 N. Lindbergh Blvd. St. Louis, MO 63167

Subject: Label Amendment – Extend expi ration date of supplemental labels Product Name: RD 1617 Herbicide EPA Registration Number: 524-549 Application Date: March 28, 2023 Decision Numbers: 591129, 591130, 591131

Dear Gaganpreet Kaur:

The amended label referred to above, submitted in connection with registration under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), as amended, is acceptable. This approval does not affect any conditions that were previously imposed on this registration. You continue to be subject to existing conditions on your registration and any deadlines connected with them.

A stamped copy of your labeling is enclosed for your records. This labeling supersedes all previously accepted labeling. You must submit one copy of the final printed labeling before you release the product for shipment with the new labeling. In accordance with 40 CFR 152.130(c), you may distribute or sell this product under the previously approved labeling for 18 months from the date of this letter. After 18 months, you may only distribute or sell this product if it bears this new revised labeling or subsequently approved labeling. “To distribute or sell” is defined under FIFRA section 2(gg) and its implementing regulation at 40 CFR 152.3.

Should you wish to add/retain a reference to the company’s website on your label, then please be aware that the website becomes labeling under FIFRA and is subject to review by the Agency. If the website is false or misleading, the product would be misbranded and unlawful to sell or distribute under FIFRA section 12(a)(1)(E). 40 CFR 156.10(a)(5) lists examples of statements EPA may consider false or misleading. In addition, regardless of whether a website is referenced on your product’s label, claims made on the website may not substantially differ from those claims approved through the registration process. Therefore, should the Agency find or if it is brought to our attention that a website contains false or misleading statements or claims substantially differing from the EPA approved registration, the website will be referred to the EPA’s Office of Enforcement and Compliance.

Page 2 of 2 EPA Reg. No. 524-549 Decision No. 591129, 591130, 591131

Your release for shipment of the product constitutes acceptance of these conditions. If these conditions are not complied with, the registration will be subject to cancellation in accordance with FIFRA section 6.

If you have any questions, please contact Emily Schmid by phone at 202-566-2893, or via email at schmid.emily@epa.gov.

Enclosure

Sincerely,

Emily Schmid, Product Manager 25 Herbicide Branch Registration Division (7505P) Office of Pesticide Pro grams

Supplemental Labeling 524-549 Page 1 of 3 SUPPLEMENTAL LABELING This supplemental label expires on March 31, 2026 and must not be used or distributed after this date. READ THE ENTIRE LABEL FOR [INSERT BRAND NAME] BEFORE PROCEEDING WITH THE USE DIRECTIONS CONTAINED IN THIS SUPPLEMENTAL LABELING. Primary Brand Name: RD 1617 Herbicide Alternate Brand Name: Roundup PowerMAX® Herbicide EPA Reg. No. 524-549 USE WITH ENLIST E3™ SOYBEAN Keep out of reach of children CAUTION In case of an emergency involving this product, call collect, day or night, (314) 694-4000. DIRECTIONS FOR USE It is a violation of Federal law to use this product in any manner inconsistent with its labeling. This label must be in the possession of the user at the time of herbicide application. Read the label affixed to the [INSERT BRAND NAME] container of before applying. Use of [INSERT BRAND NAME] according to this labeling is subject to the use precautions and limitations imposed by the label affixed to the [INSERT BRAND NAME] container. AVOID CONTACT OF HERBICIDE WITH FOLIAGE, GREEN STEMS, EXPOSED NON-WOODY ROOTS OR FRUIT OF CROPS, EXCEPT AS DIRECTED FOR USE ON ROUNDUP READY  AND OTHER GLYPHOSATE-TOLERANT CROPS, DESIRABLE PLANTS AND TREES, AS SEVERE PLANT INJURY OR DESTRUCTION COULD RESULT. See “PRODUCT INFORMATION” and “MIXING” sections of the [INSERT BRAND NAME] labeling for essential product information. TYPES OF APPLICATION: Preplant; At-Planting; Preemergence; Postemergence (In-crop); Preharvest; Post-Harvest Maximum Application Rates Combined total per year for all applications 5.3 quarts per acre Total for all Preplant, At-Planting, Preemergence applications 3.3 quarts per acre Total for all In-crop applications from cracking through flowering (R2 stage soybean) 64 fluid ounces per acre Maximum Preharvest application rate 22 fluid ounces per acre Preplant, At-Planting, Preemergence USE INSTRUCTIONS: This product may be applied before, during or after planting Enlist E3 soybean. 4/6/2023 524-549

Supplemental Labeling 524-549 Page 2 of 3 TANK MIXTURES: This product may be tank-mixed with 2,4-D and applied prior to planting only. This product may be tank-mixed with one or more products containing the active ingredients listed below and applied prior to crop emergence. Refer to the individual label of all products used in the tank mixture for approved uses and application rates. Read and follow all label directions. It is the responsibility of the pesticide user to ensure that the intended use is included on the label of all products added to a tank mixture. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture. acetochlor; carfentrazone-ethyl; chlorimuron ethyl; clethodim; clomazone; cloransulam-methyl; dimethenamid; dimethenamid-p; fluazifop-p-butyl; flufenacet; flumetsulam; flumiclorac pentyl ester; flumioxazin; fluthiacet-methyl; fomesafen; imazaquin; imazethapyr; lactofen; linuron; metolachlor; s-metolachlor; metribuzin; pendimethalin; pyroxasulfone; saflufenicil; quizalofop-p-ethyl; saflufenacil; sulfentrazone; thifensulfuron; tribenuron methyl; trifluralin RESTRICTIONS: Maximum quantity of this product that may be applied for all preplant, at-planting and preemergence applications combined is 3.3 quarts per acre per season. Postemergence (In-crop) USE INSTRUCTIONS: This product may be used to control annual grasses and broadleaf weeds in Enlist E3 soybean from emergence (cracking) through flowering (R2 stage soybean). R2 stage soybean ends when a pod 5 millimeters (3/16 inch) long appears at one of the four uppermost nodes on the main stem with a fully developed leaf (R3 stage). Refer to the “ANNUAL WEEDS RATE SECTION” of the [ INSERT BRAND NAME] label for application rates for specific annual weeds. An initial application of 22 fluid ounces of this product per acre will control or suppress most 2 to 8-inch tall weeds, which are normally found approximately 2 to 5 weeks after planting. If the initial application is delayed and weeds are larger, apply a higher rate of this product. This product may be applied up to 44 fluid ounces per acre as a single, in-crop application for control of annual weeds and where dense weed populations exist. Application of 22 to 44 fluid ounces of this product per acre (single or multiple applications) will control or suppress perennial weeds, including bermudagrass, Canada thistle, common milkweed, field bindweed, hemp dogbane, horsenettle, marestail (horseweed), nutsedge, quackgrass, rhizome johnsongrass, redvine, trumpetcreeper, swamp smartweed and wirestem muhly. For enhanced results, allow perennial weed species to achieve at least 6 inches of growth before applying this product. Under adverse growing conditions, including drought, hail or wind damage, or a poor soybean stand that slows or delays canopy closure, a sequential application of this product might be necessary to control late flushes of weeds. IN THE SOUTHERN STATES, A SEQUENTIAL APPLICATION OF THIS PRODUCT WILL BE REQUIRED TO CONTROL NEW FLUSHES OF WEEDS IN THE ENLIST E3 SOYBEAN CROP. To control giant ragweed, apply 22 fluid ounces of this product per acre when the weed is 8 to 12 inches tall to increase control and possibly avoid the need for a sequential application. PRECAUTIONS: In-crop applications made alone or with the addition of other crop chemical products could result in a crop response. Contact your seed trait provider for more information. RESTRICTIONS: The combined total application of this product from crop emergence through harvest must not exceed 64 fluid ounces per acre. The maximum rate for any single in-crop application is 44 fluid ounces per acre. The maximum combined total amount of this product that may be applied during flowering (R2 stage soybean) is 44 fluid ounces per acre. Preharvest USE INSTRUCTIONS: Up to 22 fluid ounces of this product per acre may be applied to Enlist E3 soybean for weed control prior to harvest after pods have set and lost all green color. Take care to avoid excessive seed shatter loss due to ground application equipment. RESTRICTIONS: Allow a minimum of 14 days between application and harvest of soybean grain or feeding of soybean grain, forage or hay.

Supplemental Labeling 524-549 Page 3 of 3 Post-Harvest USE INSTRUCTIONS: This product may be applied for weed control after harvest of Enlist E3 soybean. Higher rates might be needed for control of large weeds that were growing in the field at the time of harvest. RESTRICTIONS: Application of this product must be made a minimum of 30 days prior to the planting of any crop not listed on this label. Read the “Limit of Warranty and Liability” on the [INSERT BRAND NAME] product labeling before using. These terms apply to this supplemental labeling. If these terms are not acceptable, return the product unopened at once. [INSERT BRAND NAME] and Roundup Ready are [registered] trademarks of Bayer Group. Enlist E3 is a [registered] trademark of Corteva Company. [YEAR] BAYER CROPSCIENCE LP 800 N. LINDBERGH BLVD. ST. LOUIS, MISSOURI 63167 [INSERT DATE] [PRINT PLATE NUMBER]

Supplemental Labeling 524-549 Page 1 of 3 SUPPLEMENTAL LABELING This supplemental label expires on March 31, 2026 and must not be used or distributed after this date. READ THE ENTIRE LABEL FOR [INSERT BRAND NAME] BEFORE PROCEEDING WITH THE USE DIRECTIONS CONTAINED IN THIS SUPPLEMENTAL LABELING. Primary Brand Name: RD 1617 Herbicide Alternate Brand Name: Roundup PowerMAX® Herbicide EPA Reg. No. 524-549 USE WITH AGRISURE® GT CORN Keep out of reach of children CAUTION In case of an emergency involving this product, Call Collect, day or night, (314) 694-4000. DIRECTIONS FOR USE It is a violation of Federal law to use this product in any manner inconsistent with its labeling. This label must be in the possession of the user at the time of herbicide application. Read the label affixed to the [INSERT BRAND NAME] container before applying. Use of [INSERT BRAND NAME] according to this labeling is subject to the use precautions and limitations imposed by the label affixed to the [INSERT BRAND NAME] container. AVOID CONTACT OF THIS HERBICIDE WITH FOLIAGE, GREEN STEMS, EXPOSED NON-WOODY ROOTS OR FRUIT OF CROPS, EXCEPT AS DIRECTED FOR USE ON ROUNDUP READY  AND OTHER GLYPHOSATE-TOLERANT CROPS, DESIRABLE PLANTS AND TREES, AS SEVERE PLANT INJURY OR DESTRUCTION COULD RESULT. See “PRODUCT INFORMATION” and “MIXING” sections of the [INSERT BRAND NAME] labeling for essential product information. TYPES OF APPLICATION: Preplant; At-Planting; Preemergence; Postemergence (In-crop); Spot Treatment; Preharvest; Post-Harvest Maximum Application Rates Combined total per year for all applications 5.3 quarts per acre Total for all Preplant, At-Planting, Preemergence applications 3.3 quarts per acre Maximum single In-crop application rate up to V8 stage or 30-inch corn 22 fluid ounces per acre Total for all In-crop applications from emergence through V8 stage or 44 fluid ounces per acre Maximum Preharvest application rate after maximum kernel fill is complete and the crop is physiologically mature (black layer formation) until 7 days before harvest 22 fluid ounces per acre Preplant, At-Planting, Preemergence 4/6/2023 524-549

Supplemental Labeling 524-549 Page 2 of 3 USE INSTRUCTIONS: This product may be applied alone or in a tank mixture before, during or after planting Agrisure GT corn. TANK MIXTURES: This product may be tank-mixed with one or more products containing the active ingredients listed below. Apply these tank mixtures in 10 to 20 gallons of water, or 10 to 60 gallons of nitrogen solution, per acre. Refer to the individual label of all products used in the tank mixture for approved uses and application rates. Read and follow all label directions. It is the responsibility of the pesticide user to ensure that the intended use is included on the label of all products added to a tank mixture. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture. 2,4-D; acetochlor; atrazine; bicyclopyrone; carfentrazone-ethyl; clopyralid; dicamba; diflufenzopyr; dimethenamid; dimethenamid-P; flufenacet; flumetsulam; flumiclorac pentyl ester; fluthiacet- methyl; isoxaflutole; linuron; mesotrione; metolachlor; s-metolachlor; metribuzin; pendimethalin; pyroxasulfone; rimsulfuron; saflufenacil; simazine; tembotrione; thiencarbazone-methyl RESTRICTIONS: Maximum quantity of this product that may be applied for all preplant, at-planting and preemergence applications combined is 3.3 quarts per acre per season. Application of 2,4-D or dicamba must be made a minimum of 7 days prior to planting corn. NOTE: For maximum weed control, make a postemergence (in-crop) application of this product following the use of a preemergence residual product listed above. Postemergence (In-crop) USE INSTRUCTIONS: This product may be applied alone or in a tank-mix over the top of Agrisure GT corn from emergence through the V8 stage (8 leaves with collars), or until corn plant height reaches 30 inches (freestanding), whichever comes first, unless otherwise directed. Maximum single in-crop application rate of this product is 22 fluid ounces per acre. Total in-crop application of this product from corn plant emergence through the V8 stage or 30 inches in height must not exceed 44 fluid ounces per acre. When applied as directed, this product will control annual grasses and broadleaf weeds listed on the [INSERT BRAND NAME] label. Many perennial grasses and broadleaf weeds will be controlled or suppressed with one or more applications of this product. Make a postemergence application of 16 to 22 fluid ounces of this product per acre before weeds exceed 4 inches in height (before they become competitive with the crop). Repeat this application before new flushes of weeds exceed 4 inches in height. TANK MIXTURES: This product may be tank-mixed with a product containing the active ingredient acetochlor or atrazine. Ensure that the product used is labeled for application postemergence (in-crop) to field corn. Refer to the individual label of all products used in the tank mixture for approved uses and application rates. Read and follow label directions for all products in the tank mixture. It is the responsibility of the pesticide user to ensure that the intended use is included on the label of all products added to a tank mixture. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture. PRECAUTIONS: In-crop applications made alone or with the addition of other crop chemical products could result in a crop response. Contact your seed trait provider for more information. RESTRICTIONS: Allow a minimum of 10 days between in-crop applications of this product. Allow a minimum of 50 days between application of this product and harvest of corn forage or grain. Preharvest USE INSTRUCTIONS: Up to 22 fluid ounces of this product per acre may be applied for annual and perennial weed control prior to harvest when kernel fill is complete, and the corn is physiologically mature (black layer formed) and grain moisture is 35 percent or less. RESTRICTIONS: Allow a minimum of 7 days between application and harvest or feeding of corn stover or grain. Post-Harvest

Supplemental Labeling 524-549 Page 3 of 3 USE INSTRUCTIONS: This product may be applied for weed control after crop harvest. Higher rates might be needed for control of large weeds that were growing in the field at the time of harvest. Tank mixtures with 2,4-D or dicamba may be used. Ensure that the product used is labeled for post-harvest application in field corn. Read and follow label directions for all products in the tank mixture. RESTRICTIONS: Allow a minimum of 7 days between application and harvest or the feeding of vegetation within the application area. Application must be made a minimum of 30 days prior to the planting of any crop not listed on this label. Read the “Limit of Warranty and Liability” on the [INSERT BRAND NAME] product labeling before using. These terms apply to this supplemental labeling. If these terms are not acceptable, return the product unopened at once. [INSERT BRAND NAME] and Roundup Ready are [registered] trademarks of Bayer Group. Agrisure is a [registered] trademark of a Syngenta Group Company. [YEAR] BAYER CROPSCIENCE LP 800 N. LINDBERGH BLVD. ST. LOUIS, MISSOURI 63167 [INSERT DATE] [PRINT PLATE NUMBER]

Supplemental Labeling 524-549 Page 1 of 3 SUPPLEMENTAL LABELING This supplemental label expires on March 31, 2026 and must not be used or distributed after this date. READ THE ENTIRE LABEL FOR [INSERT BRAND NAME] BEFORE PROCEEDING WITH THE USE DIRECTIONS CONTAINED IN THIS SUPPLEMENTAL LABELING. Primary Brand Name: RD 1617 Herbicide Alternate Brand Name: Roundup PowerMAX® Herbicide EPA Reg. No. 524-549 USE WITH GT27 SOYBEAN Keep out of reach of children CAUTION In case of an emergency involving this product, call collect, day or night, (314) 694-4000. DIRECTIONS FOR USE It is a violation of Federal law to use this product in any manner inconsistent with its labeling. This label must be in the possession of the user at the time of herbicide application. Read the label affixed to the [INSERT BRAND NAME] container before applying. Use of [INSERT BRAND NAME] according to this labeling is subject to the use precautions and limitations imposed by the label affixed to the [INSERT BRAND NAME] container. AVOID CONTACT OF THIS HERBICIDE WITH FOLIAGE, GREEN STEMS, EXPOSED NON-WOODY ROOTS OR FRUIT OF CROPS, EXCEPT AS DIRECTED FOR USE ON ROUNDUP READY  AND OTHER GLYPHOSATE-TOLERANT CROPS, DESIRABLE PLANTS AND TREES, AS SEVERE PLANT INJURY OR DESTRUCTION COULD RESULT. See “PRODUCT INFORMATION” and “MIXING” sections of the [INSERT BRAND NAME] labeling for essential product information. TYPES OF APPLICATION: Preplant; At-Planting; Preemergence; Postemergence (In-crop); Preharvest; Post-Harvest Maximum Application Rates Combined total per year for all applications 5.3 quarts per acre Total for all Preplant, At-Planting, Preemergence applications 3.3 quarts per acre Total for all In-crop applications from cracking through flowering (R2 stage soybean) 64 fluid ounces per acre Maximum Preharvest application rate 22 fluid ounces per acre Preplant, At-Planting, Preemergence USE INSTRUCTIONS: This product may be applied before, during or after planting GT27 soybean. 04/06/2023 524-549

Supplemental Labeling 524-549 Page 2 of 3 TANK MIXTURES: This product may be tank-mixed with 2,4-D and applied prior to planting only. This product may be tank-mixed with one or more products containing the active ingredients listed below and applied prior to crop emergence. Refer to the individual label of all products used in the tank mixture for approved uses and application rates. Read and follow all label directions. It is the responsibility of the pesticide user to ensure that the intended use is included on the label of all products added to a tank mixture. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture. acetochlor; carfentrazone-ethyl; chlorimuron ethyl; clethodim; clomazone; cloransulam-methyl; dimethenamid; dimethenamid-p; fluazifop-p-butyl; flufenacet; flumetsulam; flumiclorac pentyl ester; flumioxazin; fluthiacet-methyl; fomesafen; imazaquin; imazethapyr; lactofen; linuron; metolachlor; s-metolachlor; metribuzin; pendimethalin; pyroxasulfone; saflufenicil; quizalofop-p-ethyl; saflufenacil; sulfentrazone; thifensulfuron; tribenuron methyl; trifluralin RESTRICTIONS: Maximum quantity of this product that may be applied for all preplant, at-planting and preemergence applications combined is 3.3 quarts per acre per season. Postemergence (In-crop) USE INSTRUCTIONS: This product may be used to control annual grasses and broadleaf weeds in GT27 soybean from emergence (cracking) through flowering (R2 stage soybean). R2 stage soybean ends when a pod 5 millimeters (3/16 inch) long appears at one of the four uppermost nodes on the main stem with a fully developed leaf (R3 stage). Refer to the “ANNUAL WEEDS RATE SECTION” of the [INSERT BRAND NAME] label for application rates for specific annual weeds. An initial application of 22 fluid ounces of this product per acre will control or suppress most 2 to 8-inch tall weeds, which are normally found approximately 2 to 5 weeks after planting. If the initial application is delayed and weeds are larger, apply a higher rate of this product. This product may be applied up to 44 fluid ounces per acre as a single, in-crop application for control of annual weeds and where dense weed populations exist. Application of 22 to 44 fluid ounces of this product per acre (single or multiple applications) will control or suppress perennial weeds, including bermudagrass, Canada thistle, common milkweed, field bindweed, hemp dogbane, horsenettle, marestail (horseweed), nutsedge, quackgrass, rhizome johnsongrass, redvine, trumpetcreeper, swamp smartweed and wirestem muhly. For enhanced results, allow perennial weed species to achieve at least 6 inches of growth before applying this product. Under adverse growing conditions, including drought, hail or wind damage, or a poor soybean stand that slows or delays canopy closure, a sequential application of this product might be necessary to control late flushes of weeds. IN THE SOUTHERN STATES, A SEQUENTIAL APPLICATION OF THIS PRODUCT WILL BE REQUIRED TO CONTROL NEW FLUSHES OF WEEDS IN THE GT27 SOYBEAN CROP. To control giant ragweed, apply 22 fluid ounces of this product per acre when the weed is 8 to 12 inches tall to increase control and possibly avoid the need for a sequential application. PRECAUTIONS: In-crop applications made alone or with the addition of other crop chemical products could result in a crop response. Contact your seed trait provider for more information. RESTRICTIONS: The combined total application of this product from crop emergence through harvest must not exceed 64 fluid ounces per acre. The maximum rate for any single in-crop application is 44 fluid ounces per acre. The maximum combined total amount of this product that may be applied during flowering (R2 stage soybean) is 44 fluid ounces per acre. Preharvest USE INSTRUCTIONS: Up to 22 fluid ounces of this product per acre may be applied to GT27 soybean for weed control prior to harvest after pods have set and lost all green color. Take care to avoid excessive seed shatter loss due to ground application equipment. RESTRICTIONS: Allow a minimum of 14 days between application and harvest of soybean grain or feeding of soybean grain, forage or hay.

Supplemental Labeling 524-549 Page 3 of 3 Post-Harvest USE INSTRUCTIONS: This product may be applied for weed control after harvest of GT27 soybean. Higher rates might be needed for control of large weeds that were growing in the field at the time of harvest. RESTRICTIONS: Application of this product must be made a minimum of 30 days prior to the planting of any crop not listed on this label. Read the “Limit of Warranty and Liability” on the [INSERT BRAND NAME] product labeling before using. These terms apply to this supplemental labeling. If these terms are not acceptable, return the product unopened at once. [INSERT BRAND NAME] and Roundup Ready are [registered] trademarks of Bayer Group. GT27 is a [registered] trademark of BASF Company. [YEAR] BAYER CROPSCIENCE LP 800 N. LINDBERGH BLVD. ST. LOUIS, MISSOURI 63167 [INSERT DATE] [PRINT PLATE NUMBER]