7 MIN READ
Soybean Weed Control System Comparison - NE
January 14, 2020
TRIAL OBJECTIVE
This trial compared the effect of four different weed control systems, LibertyLink® GT27™ soybeans, Enlist E3® soybeans, Roundup Ready 2 Xtend® soybeans, and XtendFlex® soybeans on glyphosate-resistant (GR) Palmer amaranth control, soybean injury, and soybean yield potential.
RESEARCH SITE DETAILS
(seeds/acre) 160K Tillage Type Conventional
- For each trait system, three soybean products were planted in strips that were four rows wide and 200 feet long per soybean product.
- LibertyLink® GT27™ soybean product RMs ranged from 2.2 to 2.9, Enlist E3® soybean product RMs ranged from 2.4 to 3.0, Roundup Ready 2 Xtend® soybean product RMs ranged from 2.4 to 3.2, and XtendFlex® soybean product RMs ranged from 2.3 to 2.7.
- Each soybean product for a given trait received the same herbicide treatments (Table 1).
- Preemergence (PRE) treatments were applied one day after soybean planting and postemergence (POST) treatments were applied at the V3 soybean growth stage when Palmer amaranth plants were four to six inches tall.
- Plots were visually evaluated for percent GR palmer amaranth control and soybean injury.
UNDERSTANDING THE RESULTS
- At 42 days after the PRE treatments, Palmer amaranth control ranged from 30 to 50% across systems (Figure 4), which led to heavy pressure at the POST application timing at this location.
- No soybean injury was observed from the PRE treatments, but soybean injury from the POST treatments was significantly (p<0.001) higher in the Enlist E3® soybean system compared to other 3 systems at this location (Figure 5).
- At 37 days after the POST treatments, Palmer amaranth control was significantly (p<0.001) higher in the Roundup Ready 2 Xtend® (98%) and XtendFlex® (97%) soybean systems compared to the Enlist E3® (78%) or LibertyLink® GT27™ (50%) soybean systems (Figure 6).
- Roundup Ready 2 Xtend® and XtendFlex® soybean yields were significantly higher than LibertyLink® GT27™at this location (p<0.001) (Figure 7).
KEY LEARNINGS
- To manage tough-to-control weeds like Glyphosate-resistant Palmer amaranth, it is essential to choose a herbicide program that provides effective foliar and residual control.
- Glyphosate resistant Palmer amaranth control was significantly higher in the Roundup Ready 2 Xtend® and XtendFlex® soybean systems than in the Enlist E3® and LibertyLink® GT27™ soybean systems at this location in 2019.
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Seed Brands & Traits
Crop Protection
Disclaimer
Disclaimers
- always read and follow pesticide label directions, insect resistance management requirements (where applicable), and grain marketing and all other stewardship practices. to review additional important information, click to open the menu below.expand_more
No dicamba may be used in-crop with seed with Roundup Ready® Xtend Technology, unless and until approved or specifically permitted, and no dicamba formulations are currently registered for such use in the 2024 season. Please follow www.roundupreadyxtend.com/xtendimaxupdates for status updates
Based on Court ruling and EPA Existing Stocks Order* on XtendiMax® Herbicide registration, Bayer has stopped its sale and distribution of XtendiMax® Herbicide. Visit our XtendiMax herbicide updates page to learn the latest www.roundupreadyxtend.com/xtendimaxupdates.
*Low-volatility dicamba products subject to the ruling include XtendiMax® herbicide with VaporGrip® Technology, Engenia® herbicide and Tavium® Plus VaporGrip® Technology herbicide.
The Preceon™ Smart Corn System, including short stature corn developed through traditional breeding, is expected to be available, subject to final commercialization decisions, for planting in the 2024 growing season.
Short stature corn developed through biotechnology is not currently available for commercial sale or commercial planting. Commercialization is dependent on multiple factors, including successful conclusion of the regulatory process.
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*Commercialization is dependent on multiple factors, including successful conclusion of the regulatory process. The information presented herein is provided for educational purposes only, and is not and shall not be construed as an offer to sell, or a recommendation to use, any unregistered pesticide for any purpose whatsoever. It is a violation of federal law to promote or offer to sell an unregistered pesticide.
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XtendiMax® herbicide with VaporGrip® Technology has been classified as pesticide and must be used with VaporGrip® Xtra Agent (or an equivalent volatility reduction adjuvant). For approved tank-mix products (including VRAs and DRAs), nozzles and other important label information visit XtendiMaxApplicationRequirements.com. Applicators must check XtendiMaxApplicationRequirements.com no more than 7 days before application of this product for additional labeling, including state restrictions. Where applicable, users must comply with additional requirements found on this website.
ALWAYS READ AND FOLLOW PESTICIDE LABEL DIRECTIONS. Not all products are registered for use in all states and may be subject to use restrictions. The distribution, sale, or use of an unregistered pesticide is a violation of federal and/or state law and is strictly prohibited. Check with your local dealer or representative for the product registration status in your state.
Product Use Statement: Enlist E3® soybeans contain the Enlist E3 trait that provides crop safety for use of labeled over-the-top applications of glyphosate, glufosinate and 2,4-D herbicides featuring Colex-D® technology when applied according to label directions. Following burndown, the only 2,4-D containing herbicide products that may be used with Enlist® crops are products that feature Colex-D technology and are expressly labeled for use on Enlist crops. 2,4-D products that do not contain Colex-D technology are not authorized for use in conjunction with Enlist E3 soybeans. Warning: Enlist E3 soybeans are tolerant of over-the top applications of glyphosate, glufosinate, and 2,4-D. Accidental application of incompatible herbicides to this variety could result in total crop loss. When using 2,4-D herbicides, grower agrees to only use 2,4-D products that contain Colex-D technology authorized for use in conjunction with Enlist E3 soybeans. Always read and follow herbicide label directions prior to use.
YOU MUST SIGN A TECHNOLOGY AGREEMENT, READ THE PRODUCT USE GUIDE PRIOR TO PLANTING AND FOLLOW HERBICIDE RESISTANCE MANAGEMENT (HRM) REQUIREMENTS.
The transgenic soybean event in the Enlist E3® soybeans is jointly developed and owned by Corteva Agriscience and M.S. Technologies, L.L.C. ®™ Enlist, Enlist E3, the Enlist E3 logo and Colex-D are trademarks Corteva Agriscience and its affiliate companies.
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ALWAYS READ AND FOLLOW PESTICIDE LABEL DIRECTIONS. FOR COTTON TREATED FOR MARKET YEAR 2024, EACH ACCELERON® SEED APPLIED SOLUTIONS OFFERING is a combination of separate individually registered products containing the active ingredients: BASIC Offering: fluoxastrobin, prothioconazole, metalaxyl, myclobutanil, and penflufen. STANDARD Offering: fluoxastrobin, prothioconazole, metalaxyl, myclobutanil, penflufen, and imidacloprid. ELITE plus Copeo® Offering: fluoxastrobin, prothioconazole, metalaxyl, myclobutanil, penflufen, imidacloprid, and fluropyram.
FOR COTTON TREATED FOR MARKET YEAR 2022 OR PRIOR, EACH ACCELERON® SEED APPLIED SOLUTIONS OFFERING is a combination of separate individually registered products containing the active ingredients: BASIC Offering: fluxapyroxad, pyraclostrobin, metalaxyl, and myclobutanil. STANDARD Offering: fluxapyroxad, pyraclostrobin, metalaxyl, myclobutanil, and imidacloprid. ELITE plus Poncho®/VOTiVO® Offering: fluxapyroxad, pyraclostrobin, metalaxyl, myclobutanil, imidacloprid, clothianidin, and Bacillus Firmus I-1582.
Please review each seed tag to determine active ingredients in the product offering on the seed. The distribution, sale, or use of an unregistered pesticide is a violation of federal and/or state law and is strictly prohibited. Not all products are approved in all states.
ALWAYS READ AND FOLLOW PESTICIDE LABEL DIRECTIONS. FOR SOYBEANS SEED TREATMENT PRODUCTS APPLIED DOWNSTREAM, EACH ACCELERON® SEED APPLIED SOLUTIONS OFFERING is a combination of separate individually registered products containing the active ingredients: BASIC Offering: metalaxyl, penflufen and prothioconazole. STANDARD Offering: metalaxyl, penflufen, prothioconazol and imidacloprid. FOR UPSTREAM TREATED SOYBEANS, EACH ACCELERON® SEED APPLIED SOLUTIONS OFFERINGis a combination of separate individually registered products containing the active ingredients: BASIC Offering: metalaxyl, fluxapyroxad, and pyraclostrobin. STANDARD Offering: metalaxyl, fluxapyroxad, pyraclostrobin and imidacloprid. The distribution, sale, or use of an unregistered pesticide is a violation of federal and/or state law and is strictly prohibited. Not all products are approved in all states.
ALWAYS READ AND FOLLOW PESTICIDE LABEL DIRECTIONS. FOR CORN, EACH ACCELERON® SEED APPLIED SOLUTIONS OFFERING is a combination of separate individually registered products containing the active ingredients: BASIC plus Poncho®/VOTiVO® Offering for corn: metalaxyl, ethaboxam, prothioconazole, fluoxastrobin, clothianidin, Bacillus firmus I-1582. ELITE plus Poncho®/VOTiVO® Offering for corn: metalaxyl, ethaboxam, clothianidin, and Bacillus firmus I-1582; prothioconazole and fluoxastrobin at rates that suppress additional diseases. BASIC Offering for corn: metalaxyl, prothioconazole, fluoxastrobin, ethaboxam, and clothianidin. ELITE Offering for corn: metalaxyl, ethaboxam, and clothianidin; and prothioconazole and fluoxastrobin at rates that suppress additional diseases. BioRise® Corn Offering is included seamlessly across offerings on all class of 2017 and newer products. The distribution, sale, or use of an unregistered pesticide is a violation of federal and/or state law and is strictly prohibited. Not all products are approved in all states.
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ONLY USE FORMULATIONS THAT ARE SPECIFICALLY LABELED FOR SUCH USES AND APPROVED FOR SUCH USE IN THE STATE OF APPLICATION. Contact the U.S. EPA and your state pesticide regulatory agency with any questions about the approval status of dicamba herbicide products for in-crop use with products with XtendFlex® Technology.
ALWAYS READ AND FOLLOW PESTICIDE LABEL DIRECTIONS. It is a violation of federal and state law to use any pesticide product other than in accordance with its labeling. NOT ALL formulations of dicamba or glyphosate are approved for in-crop use with Roundup Ready 2 Xtend® soybeans. NOT ALL formulations of dicamba, glyphosate or glufosinate are approved for in-crop use with products with XtendFlex® Technology.
Roundup Ready® Technology contains genes that confer tolerance to glyphosate. Roundup Ready® 2 Technology contains genes that confer tolerance to glyphosate. LibertyLink® Technology contains genes that confer tolerance to glufosinate. Roundup Ready® Flex Technology contains genes that confer tolerance to glyphosate. Roundup Ready technology contains genes that confer tolerance to glyphosate, an active ingredient in Roundup® brand agricultural herbicides. Roundup Ready 2 Xtend® soybeans contain genes that confer tolerance to glyphosate and dicamba. Products with XtendFlex® Technology contains genes that confer tolerance to glyphosate, glufosinate and dicamba. Plants that are not tolerant to glyphosate, dicamba, and/or glufosinate may be damaged or killed if exposed to those herbicides. Contact your seed brand dealer or refer to the Bayer Technology Use Guide for recommended weed control programs.
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