Author Archives: inputsandinsights

Herbicide Lessons Lessen Farmers’ Concerns

Growing knowledge about the Enlist weed control system remains vital as Corteva Agriscience, Agriculture Division of DowDuPont, continues to prepare the market for the large-scale commercialization of Enlist E3 soybeans.

Corteva Agriscience will broadly license Enlist E3 soybeans following Chinese import approval of the Enlist E3 soybean trait. Making this trait widely available to farmers requires seamless collaboration with seed companies: The technology must be available in the best genetics over a wide range of maturities. That’s why the company is engaging now with seed companies that plan to add Enlist E3 soybeans to their product lineups.

Ensuring the Enlist technology is in elite soybean (as well as corn and cotton) genetics will help farmers, applicators and retailers who evaluate the Enlist trait be more profitable and successful. 

As this technology gets into the hands of more farmers – and the retailers they trust – it builds comfort with the system and prepares for continued expansion of Enlist crop acreage.

Part of this effort is continued access to education and tools that help users get more out of the Enlist system. Field planning, best management practices, application education and advice help farmers position Enlist crops to perform as promised. This includes on-target application, excellent weed control, exemplary crop tolerance and the opportunity for top yield.

Education from the start
From the beginning, education and product stewardship have been critical pillars of this technology. As a key part of the Enlist weed control system, the Enlist Ahead management resource provides an array of tools to help retailers, farmers, and applicators understand how to use this technology — including Enlist herbicides — appropriately and effectively.

As individual Enlist crops come to market, the emphasis on education, training and stewardship expands. Committing resources to these efforts allows the company to launch these crops in a careful, responsible and measured way.

“When we work with farmers, we emphasize field planning, a program approach and adherence to all label requirements, including downwind buffers,” says Andy Asbury, a field specialist for Illinois. “Farmers are seeing how this system works in their fields.”

Specialists such as Asbury provide tools and training to help ensure farmers can use this technology confidently.

“We can help farmers understand label requirements for our products,” says Steve Snyder, a field specialist who covers the upper Midwest. “In addition, we offer online resources so growers in the field can get quick access to information on their tablets or smartphones.”

Customers are gaining experience with Enlist crops. Enlist Ahead tools provide a wealth of information to help users feel secure when using this much-needed and extremely effective weed control technology. Learn more about the Enlist Ahead management resource by visiting Enlist.com

Enlist education efforts

Continuing education efforts highlight the growth of the Enlist weed control system. Collaboration with seed companies and in-the-field training are helping growers, applicators and retailers understand how to use this technology most effectively and successfully.

®™Trademarks of Dow AgroSciences, DuPont or Pioneer and their affiliated companies or respective owners. Enlist E3 soybeans were jointly developed by Dow AgroSciences and MS Technologies. Enlist soybeans are approved for cultivation in the U.S. and have also received import approval in a number of importing countries. Dow AgroSciences continues to pursue import approvals in additional countries, including in China, for Enlist E3 soybean products, in accordance with Excellence Through Stewardship® product launch guidance. ®Excellence Through Stewardship is a registered trademark of Excellence Through Stewardship. ©2018 Dow AgroSciences LLC

Three steps to identify a proven nitrogen stabilizer

Nitrogen stabilizers are one option to protect nitrogen; however, the market is saturated with products that claim to protect nitrogen. With fall purchasing decisions around the corner, Corteva Agriscience, Agriculture Division of DowDuPont, has identified key criteria to help farmers select a proven nitrogen stabilizer that is right for them.

Weeding through the myriad of stabilizer products can be tricky, and timely factors like commodity prices, trade negotiations and nutrient management regulations make finding the best option even more important. Corteva Agriscience recommends that farmers use three criteria in determining the right nitrogen stabilizer to use:

  1. Leverage University-supported research
    Use stabilizers that have been rigorously tested and proven by universities. Farmers should ask their retailers to share academic research that supports the claims that are being touted.
  2. Check labeling to ensure it meets EPA registration guidelines
    Use stabilizers that also follow EPA registration guidelines. These guidelines require robust documentation and research to support claims that relate to the effectiveness of a nitrogen stabilizer product.
  3. Prioritize value
    The current economics of farming may not be as rewarding as a few years ago, so every penny matters. Stabilizers can be viewed as an insurance policy to protect crop yield and preserve a farmer’s investments. Whether you’re concerned about nitrogen being a yield-limiting factor or concerned about nitrogen loss impacting water quality, nitrogen should always be protected.

Two options that meet this criteria set are Instinct® and N-Serve® nitrogen stabilizers. Instinct and N-Serve maximize nitrogen by extending its availability for up to eight weeks, during critical growth stages for corn and wheat, helping crops deliver the maximum yield at harvest. To learn more, visit MaxInMaxOut.com, or contact your local Corteva Agriscience territory manager.

®™Trademark of Dow AgroSciences, DuPont or Pioneer and their affiliated companies or respective owners. Instinct is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Do not fall-apply anhydrous ammonia south of Highway 16 in the state of Illinois. Always read and follow label directions. ©2018 Dow AgroSciences

Key trends and learnings: Farm Progress Show 2018

On Aug. 28-30 in Boone, Iowa the newly formed Corteva Agriscience, Agriculture Division of DowDuPont, made its presence known at the 65th annual Farm Progress Show with two show-stopping exhibits, four eye-catching sponsorships and a Guinness World Record. The Corteva Agriscience crop protection brands focused on topics to help farmers address their most common in-field issues, nitrogen management plans and weed-specific questions.

Soybean Herbicides
Soybean herbicide representatives shared with attendees the importance of implementing a fall burndown treatment to start with clean fields in the spring. Attendees learned how Elevore® uses a systemic approach that works to kill a broad range of weeds from the inside out, including actively growing marestail up to 8 inches tall.

In addition, Chris Pritchett, U.S. product manager, soybean herbicides; Kent Bennis, U.S. market development specialist; Autumn Patishall, territory manager, northwest Iowa; and Andy Fordice, category lead, Enlist and Xtend herbicides, spoke on an expert panel, answering attendees’ questions about field conditions, tough weeds, inputs and industry trends.

An expert panel at the Corteva Agriscience<sup style=

An expert panel at the Corteva Agriscience booth answers in-field questions.

Nitrogen Maximizers
The nitrogen maximizers team shared tips on how to identify and select a proven nitrogen stabilizer. Team members discussed how it is important for farmers to choose nitrogen stabilizers, such as Instinct® and N-Serve®, that meet key criteria including university research, meeting guidelines from the U.S. Environmental Protection Agency and prioritizing value.

Kenny Johnson, CCA U.S. product manager, nitrogen stabilizers, at Corteva Agriscience™, Agriculture Division of DowDuPont, DowAgroSciences, discusses key criteria for selecting a proven nitrogen stabilizer.

Kenny Johnson, CCA U.S. product manager, nitrogen stabilizers, at Corteva Agriscience, Agriculture Division of DowDuPont, DowAgroSciences, discusses key criteria for selecting a proven nitrogen stabilizer.

Enlist Weed Control System
Corteva Agriscience representatives for the Enlist weed control system talked with visitors about the continued importance of information and educational tools for farmers, applicators and retailers. Andy Fordice, category leader for the Enlist system, led an informational session during the show. Presentations like this support the classroom and field training technology specialists host throughout the year.

Andy Fordice, Enlist™ category leader, speaks with U.S. Secretary of Agriculture Sonny Perdue about the Enlist weed control system.

Andy Fordice, Enlist category leader, speaks with U.S. Secretary of Agriculture Sonny Perdue about the Enlist weed control system.

Andy Fordice, Enlist™ category leader, addresses a crowd at Farm Progress Show, discussing the Enlist weed control system.

Andy Fordice, Enlist category leader, addresses a crowd at Farm Progress Show, discussing the Enlist weed control system.

®™Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. ®XtendiMax is a registered trademark of Monsanto Technology LLC. XtendiMax is a federally Restricted Use Pesticide. Enlist Duo® and Enlist One herbicides are not registered for sale or use in all states or counties. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your area. Enlist Duo and Enlist One herbicides are the only 2,4-D products authorized for use in Enlist crops. Consult Enlist herbicide labels for weed species controlled. Instinct is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Do not fall-apply anhydrous ammonia south of Highway 16 in the state of Illinois. Always read and follow label directions. ©2018 Dow AgroSciences LLC

Weed of the Month: Palmer Amaranth

  • Palmer AmaranthCommon name: Palmer pigweed
  • Scientific name: Amaranthus palmeri 1
  • Grass or broadleaf: Annual broadleaf
  • Native to the Southwestern desert regions of the United States, Palmer amaranth has expanded rapidly across the Southeast and can be found in multiple Midwestern states.1
  • Germination timing: Palmer amaranth emergence is from early May until mid-September. This long emergence period forces farmers to manage the weed throughout the year, unlike other summer annual weeds that are typically managed only through early summer.1
  • Competitiveness: Known as the most competitive and aggressive pigweed species, Palmer amaranth can lead to soybean yield loss up to 79 percent and corn yield loss up to 91 percent in some states. It also can significantly increase production costs.2
  • Palmer amaranth grows fast – as much as 2 to 3 inches per day – and commonly reaches 6 to 8 feet.2
  • Farm equipment, specifically combines, and wildlife can spread Palmer amaranth seed into new, previously uninfected fields.1

Fast facts

  • Palmer amaranth has dioecious reproduction, meaning plants are either male or female, which forces outcrossing and genetic diversity.1 This makes it more difficult to control.
  • Each plant can produce 100,000 or more seeds when it competes with a crop. In noncompetitive scenarios, each plant can produce nearly a half million seeds.
  • According to WeedScience.org, the first confirmation of glyphosate-resistant Palmer amaranth in Midwest corn, cotton and soybean fields occurred in Missouri in 2008.
  • To identify Palmer amaranth, look for smooth green leaves arranged in an alternate pattern that grows symmetrically around the stem. The leaves are oval to diamond-shaped. There may be a small, sharp spine at the leaf tip.2
  • Palmer amaranth seeds are small and thrive in no-till or minimum-tillage fields.1

Weed management tips1

  • Rotate crops: this allows farmers to use herbicides with additional modes of action in the field.
  • Practice deep tillage: this will bury the small Palmer amaranth seed below its preferred emergence depth.
  • Plant a cereal rye cover crop: this crop can provide a mulch that will suppress Palmer amaranth emergence.
  • Harvest heavily infested fields last: because machinery so easily spreads Palmer amaranth seeds from one field to another, consider harvesting fields or parts of field with infestations last to limit seeds to that area.

Resistance Statistics*

  • According to WeedScience.org, herbicide-resistant Palmer amaranth has been documented in corn and soybean fields in 24 states: Alabama, Arkansas, California, Delaware, Florida, Georgia, Illinois, Kansas, Kentucky, Louisiana, Maryland, Michigan, Missouri, Nebraska, New Jersey, New Mexico, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Texas, Virginia and Wisconsin.

*Resistance confirmation does not include all weeds and may vary among different areas of each state.

Corteva Agriscience, Agriculture Division of DowDuPont, offers the following weed control solutions:

Corn

DuPont Cinch® ATZ herbicide
Durango® DMA® herbicide
Elevore herbicide
Enlist Duo® herbicide, as part of the Enlist weed control system
Enlist One herbicide, as part of the Enlist weed control system
FulTime® NXT herbicide
Keystone® LA NXT herbicide
Keystone® NXT herbicide
DuPont Realm® Q herbicide
Resicore® herbicide
SureStart® II herbicide

Soybean

Durango® DMA® herbicide
Elevore herbicide
Enlist Duo® herbicide, as part of the Enlist weed control system
Enlist One herbicide, as part of the Enlist weed control system
DuPont EverpreX® herbicide
FirstRate® herbicide
Sonic® herbicide
Surveil® herbicide
DuPont Trivence® herbicide

Additional information:

For more information, read these weed science resources:

Sources:
1Purdue University Extension 2013. Palmer Amaranth Biology, Identification, and Management. https://www.extension.purdue.edu/extmedia/WS/WS-51-W.pdf
2Minnesota Department of Agriculture 2018. Palmer Amaranth in Minnesota. https://mda.state.mn.us/plants-insects/palmer-amaranth-minnesota

®™Trademark of The Dow Chemical Company (“Dow”) or E. I. du Pont de Nemours and Company (“DuPont”) or affiliated companies of Dow or DuPont. Cinch ATZ, FulTime NXT, Keystone LA NXT and Keystone NXT are federally Restricted Use Pesticides. Cinch ATZ, Durango DMA, Elevore, EverpreX, FulTime NXT, Keystone LA NXT, Keystone NXT, Realm, Resicore, Sonic, SureStart II, Surveil and Trivence are not registered for sale or use in all states. FulTime NXT, Keystone LA NXT, Keystone NXT, Resicore and SureStart II are not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Enlist Duo and Enlist One herbicides are not registered for sale or use in all states or counties. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your area. Enlist Duo and Enlist One herbicides are the only 2,4-D products authorized for use in Enlist crops. Always read and follow label directions. ©2018 Dow AgroSciences LLC

Education: From the start, a key pillar for Enlist™ weed control system

David Hillger

David Hillger,
Ph.D., herbicide trait field specialist

Retailers understand that successful herbicide application means not just controlling weeds but also taking care when applying near surrounding crops and gardens.

From the beginning, education has been one of the keys to launching the Enlist weed control system. We always realized the importance of committing resources to help users understand this technology and use it correctly. We’re continuing these efforts to reach retailers, applicators and, of course, farmers.

Farmers who’ve applied Enlist herbicides according to the label have controlled their toughest weed challenges and, thanks to Colex-D® technology, seen the value of lower potential for physical drift and near-zero volatility.

Three key pillars of Enlist technology
Stewardship education has been a strong foundation in the development of the Enlist technology. Three important pillars support the Enlist system:

  1. The Enlist trait, which allows farmers to apply Enlist herbicides postemergence on Enlist cotton, corn and soybeans.
  2. Enlist herbicides — Enlist Duo® and Enlist One herbicides — which control tough broadleaf weeds that increasingly challenge farmers. Both feature Colex-D technology to help herbicides stay where they’re sprayed when applied according to the label.
  3. The Enlist Ahead management resource, which is designed to help farmers succeed while promoting the responsible use of the Enlist system.

We developed Enlist Ahead with extensive input from farmers and other key stakeholders. This management resource has been a vital part of our Enlist system since 2012, well before Enlist crops and herbicides were in any farmer’s fields.

Enlist Ahead resources focus on the proactive management of weed resistance, minimizing potential for off-target movement of Enlist herbicides and promoting trait stewardship.

Enlist Ahead training combines in-field training experiences, classroom-style instructor-led sessions and online training. We support training with robust literature and reference materials on Enlist.com, as well as access to our team of in-field experts to help advise about field planning, sprayer setup and application planning.

When I’m visiting with farmers, one of the first things I like to do is understand where they plan to plant their Enlist crops. Together, we’ll look at what crops are in neighboring fields, weed pressure and types of weeds in the field. Then we can tailor a plan using Enlist Ahead resources, including the Enlist Ahead app.

Enlist representatives have worked with and trained tens of thousands of farmers, applicators and retailers at in-field demonstrations across the entire Corn Belt and Cotton Belt.

Retailers can take advantage of many online tools, including the Product Use Guide, sprayer cleanout guide, application guide and the Enlist Ahead detailer, which includes information on the Enlist Ahead app, incentives and other benefits.

Also check out our educational videos on our YouTube channel, visit Experiencing Enlist and follow us on Twitter at @EnlistOnline.

About the author: David Hillger, Ph.D., is herbicide traits field specialist who covers the eastern Corn Belt. He brings his weed science expertise to farmers and retailers who want to know more about Enlist technology, weed control and on-target application. 

®™Trademarks of Dow AgroSciences, DuPont or Pioneer and their affiliated companies or respective owners. Enlist Duo and Enlist One herbicides are not registered for sale or use in all states or counties. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your area. Enlist Duo and Enlist One herbicides are the only 2,4-D products authorized for use in Enlist crops. Always read and follow label directions. ©2018 Corteva Agriscience

Maximize your customers’ profit potential with Instinct® and manure

Across the Midwest, manure is becoming an increasingly important fertilizer type for cornfields during spring and fall. To maximize yield, growers invest their time, labor, machinery and fuel costs to apply liquid manure as an effective nitrogen source. And while there’s much to gain, just like with other nitrogen sources, there is also susceptibility to loss through leaching and denitrification.

To extend nitrogen availability in the soil for up to eight weeks, Instinct® nitrogen stabilizer can be easily mixed directly into deep pits and lagoons. This makes nitrogen available and ready when the crop needs it most: during critical growth stages.

How do manure and Instinct® nitrogen stabilizer work together?              

Mixing Instinct into a manure pit and spreading onto fields will extend nitrogen availability for corn and result in overall higher yield. Spreading manure as a fertilizer type is an effective practice and a natural source of nitrogen but may cause leaching and denitrification. Instinct gives farmers the opportunity to increase yield by 10 to 12 bushels per acre* and reduce leaching into groundwater and denitrification by keeping nitrogen at the root zone for a longer period. For maximum crop growth, Instinct provides available nitrogen up to eight weeks longer in key growth stages for corn.

A straightforward approach

When using common agitation procedures, Instinct can be evenly distributed in the entire manure pit and will not cause damage to pit walls due to being alkaline in nature. Once incorporated with the soil, Instinct® nitrogen stabilizer will release the active ingredient, allowing corn to reach its maximum yield potential. Overall, Instinct provides an average revenue increase of $21 per acre,** proving beneficial to add to any farmer’s operation.

For more information, visit NitrogenMaximizers.com/MaximizeManure/ or contact your Corteva Agriscience™ sales representative.

*Vetsch, J., and J. Lamb. 2011. Applying Instinct as a nitrogen stabilizer for fall applied manure http://blog-crop-news.extension.umn.edu/2011/10/applying-instinct-as-nitrogen.html?m=1.

**Based on 452 Dow AgroSciences field trials from 2010-16, resulting in an average increase of 6.1 bu./A at $3.50/bu.

Including Instinct® nitrogen stabilizer into a nitrogen management program will allow corn to have access to available nitrogen during key growth stages

®™Trademarks of Dow AgroSciences, DuPont or Pioneer and their affiliated companies or respective owners. Instinct is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Federal law does not require any person who applies or supervises the use of Instinct to be certified in accordance with EPA regulations and state, territorial and tribal laws. Some states may have additional requirements related to liquid manure and nitrogen stabilizers. Be sure to consult your state or local Extension service to understand your requirements. When applying Instinct to deep pits, appropriate manure agitation safety steps should be followed: Instinct should be applied directly to the deep pit prior to pumping the pit; a thorough agitation system must be operating in order to evenly distribute Instinct within the deep pit; applicators and handlers of Instinct and manure treated with Instinct are required to use proper protective equipment as stated on the product label; air ventilation systems must be operational inside barns. Always read and follow label directions. ©2018 Corteva Agriscience

Farmers face waterhemp halfway through growing season

While there are dozens of common weeds that threaten yield each season, many Midwest farmers who grow corn or soybeans are facing off with waterhemp now.

This demanding weed is leading the conversation and building strength against herbicides halfway through 2018. It’s crucial to scout diligently, implement a diverse action plan and use a program herbicide approach with multiple modes of action to combat increasingly resistant waterhemp and other common broadleaf weeds.

“New cases of resistant waterhemp are daunting to those of us in the ag industry because it threatens the already-delicate ROI ratio,” says Dave Roome, customer technical specialist, Corteva Agriscience, Agriculture Division of DowDuPont. “But waterhemp can grow stronger each year. We have to stay aggressive at reducing the waterhemp seedbank to protect fall yield and get a head start on next season.”

Roome shares five tips to help farmers manage waterhemp for the remainder of this season and to limit additional resistance development:

  1. Scout diligently. Identify waterhemp early and continue to check your fields now, during midsummer. Ongoing scouting helps farmers plan timely postemergence herbicide applications and identify potential problem fields for the following year. It can be difficult to identify waterhemp in early growth stages because it looks similar to Palmer amaranth and other pigweed species. Waterhemp leaves are generally longer and more lance-shaped than other pigweeds.
  2. Layer residual herbicides. Layering residual herbicides keeps fields clean longer, typically through crop canopy closure, to manage the waterhemp seedbank. In corn, farmers can apply three unique modes of action with SureStart® II herbicide preemergence followed by an additional unique mode of action from Resicore® herbicide early postemergence. In soybeans, Sonic® herbicide provides two modes of action preemergence followed by DuPont EverpreX herbicide for an additional mode of action postemergence. Farmers may also add atrazine to their corn programs and glyphosate to corn and soybean programs, in areas where waterhemp isn’t resistant, to increase the number of different modes of action.
  3. Plant narrower rows. Narrow row spacing can help suppress waterhemp growth by allowing crops to reach canopy closure quicker. Also, tillage is an enemy of waterhemp, Roome says. Tillage can help lower waterhemp populations because the seeds must germinate in the top part of the soil; however, tillage may not be a viable method of control on land prone to erosion.
  4. Prevent weeds from going to seed. Just a few waterhemp weeds left in a field can present significant problems for the next season. Waterhemp that goes to seed in corn or soybean fields can potentially cross-pollinate with a population in another field and build additional resistance.
  5. Maximize application technology. Pay close attention to herbicide labels to maximize the efficacy of the product. Not every herbicide can be applied in the same manner with the same nozzles, water volumes, pressures, and adjuvants. Waterhemp requires herbicide control and effective cultural practices, such as rotating crops, which should be planned for more than a single year at a time, Roome says. When rotating crops, think beyond just rotating corn and soybeans to what you can do in that system. Rotating crops also allows farmers to rotate modes of action and adjust tilling plans for corn and soybean fields.

For more information about controlling waterhemp in corn, visit PowerOverWeeds.com. For waterhemp control in soybeans, visit BattleWeeds.com.

1Heap, I. 2018. The International Survey of Herbicide Resistant Weeds. www.weedscience.org

Palmer amaranth vs. Waterhemp

Waterhemp and Palmer amaranth look similar, but waterhemp leaves are generally longer and more lance-shaped than other pigweeds.

®™Trademarks of Dow AgroSciences, DuPont or Pioneer and their affiliated companies or respective owners.  DuPont EverpreX herbicide, Resicore, Sonic and SureStart II are not registered for sale or use in all states. Resicore and SureStart II are not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. ©2018 Corteva Agriscience