Tag Archives: Industry News

Be inspired by the Power to Do More winners

The Power to Do More contest recognizes worthy farmers not only for what they produce in their fields but also for their exceptional commitment to the communities in which they farm. Farmers often spend as much time and effort working with local organizations as they do ensuring their cornfields stay clean through harvest.

In 2018 we asked farmers to submit photos that embody what gives them the power to do more on their farms. Online voting determined the top three winners, who each saw donations made to their nonprofit of choice from the corn herbicides portfolio of Corteva Agriscience, Agriculture Division of DowDuPont.

These inspiring documentaries show how these three families have the power to do more — in their fields and in their communities. Click the links below to meet the Schroeders from Iowa, the Krauses from Minnesota and the Gutterys from Kansas.

Corteva Agriscience is proud to showcase these winners and to support all American farmers with a lineup of corn herbicides dedicated to delivering the power to do more every season:
Resicore® herbicideSureStart® II herbicideDuPont Realm® Q herbicideDuPont Cinch® ATZ herbicide and Keystone® NXT herbicide.

™®Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. Cinch ATZ and Keystone NXT are Restricted Use Pesticides. Keystone NXT is not available for sale, distribution or use in all states. Resicore and SureStart II are not registered for sale or use in all states. Keystone NXT, Resicore and SureStart II are not registered 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. ©2019 Dow AgroSciences LLC

Timely Residual and Enlist™ Herbicide Applications Foil Weeds

They say timing is everything. When it comes to weed control, that’s close to the truth. Timing certainly is important.

Farmers who put together a successful weed control program need to make timely herbicide applications from before planting through their postemergence applications. Retailers can help their customers make plans that allow for these timely applications.

Into the field earlier
Changes in planting dates may require changes in traditional herbicide application dates, says Shawna Hubbard, Product Manager for Corteva Agriscience, Agriculture Division of DowDuPont.

“As we plant earlier and earlier, farmers need to adjust their herbicide applications,” Hubbard says. Any operation applying growth regulators – such as glyphosate, 2,4-D or dicamba – early in the year needs to ensure the temperatures are warm enough that weeds are actually growing. If they’re not actively growing, these herbicides will be less effective.

“We also need to get residual herbicides on before weeds can gain a foothold,” Hubbard says. “Because we’re applying residuals earlier, we may need to consider using higher rates: We’re often asking them to control weeds an extra two, three or four weeks before we apply postemergence treatments.”

Weeds dictate application timing
Timing is critical for postemergence applications as well. Hubbard suggests applicators base treatments on the size of the weeds, not the calendar.

“It’s better to go a little earlier than you traditionally would,” she says. “For instance, with Enlist One or Enlist Duo herbicides, we should be applying when weeds are no more than 4 to 6 inches tall. If you’re worried about a second flush of weeds after your postemergence application, you have a couple of solutions.”

Adding a qualified residual herbicide to your postemergence tank mix can extend protection. Qualified herbicides for tank-mixing with Enlist One and Enlist Duo® herbicides are listed at EnlistTankMix.com. In addition, if farmers apply postemergence herbicides a bit early, they can always come back with another round of an Enlist herbicide or glufosinate over Enlist cotton or Enlist soybeans.

“Don’t wait for late flushes of weeds to make your first postemergence application,” Hubbard says. “Weather could delay that application and put a lot of pressure on your residuals to hold the fort.”

Spring delays in 2018 meant some growers never got a residual down. That, in turn, required early postemergence applications. Wet field conditions meant some of these applications couldn’t be made until weeds were considerably larger than ideal for complete control.

Time to start planning
For 2019, Hubbard cites four goals that can help make a weed control program more successful:

  • Start with a clean field at planting.
  • Use residual herbicides that feature more than a single mode of action.
  • Make timely applications of postemergence herbicides. For Enlist herbicides, this means spraying before weeds reach 4 to 6 inches.
  • Add an appropriate residual herbicide to your postemergence product to extend the efficacy of this application.

Farmers who keep weeds under wraps all season long reap benefits in the fall. A weed-free field at harvest not only makes it easier to combine the crop but also limits the spread of weed seed.

Find out more by talking to a Corteva Agriscience field rep, by going to Enlist.com or by using the Enlist Ahead resource. Also check out the YouTube channel or Twitter at @EnlistOnline.

dead weed

Timely herbicide applications, from preplanting to postemergence, can help put tough weeds in their place.

™®Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their 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 are the only 2,4-D products authorized for use with Enlist crops. Consult Enlist herbicide labels for weed species controlled. Always read and follow label directions. ©2019 Dow AgroSciences LLC

A clean spring starts with a preemergence herbicide

As your customers evaluate this season’s yield and adjust their weed control plans for next season, reinforce the value of a preemergence herbicide with them for a clean start. By relying only on postemergence applications, waterhemp, marestail and other common weeds can start robbing corn and soybean yield right after planting.

Spring is a vulnerable time for crops as they require a strong start to thrive for the rest of the season. In an April poll on OperationCleanFields.com, most retailers — 58 percent — selected waterhemp as their customers’ most challenging weed followed by marestail at 23 percent.

Marestail is generally considered the most difficult weed to control if it can overwinter into the spring. When this happens, marestail grows rapidly as temperatures warm, robbing soil of two critical inputs: moisture and nitrogen. Since marestail can germinate throughout the entire year, it’s important for retailers and farmers to scout for it year-round and identify it early in the rosette stage for effective control.

The photos below were taken in McLean, Nebraska, on July 9, 2018. McLean is in the Northeast part of the state and where marestail is one of the biggest weed challenges. The fields shown received spring applications of Sonic® herbicide in soybeans and Resicore® herbicide in corn to allow the crops to grow with less weed competition.

“To reduce the spread of resistant weed populations, such as marestail and waterhemp, farmers should plan their herbicide control and crop rotation for more than a single year at a time,” says Dave Roome, customer technical specialist, Corteva Agriscience, Agriculture Division of DowDuPont. “The most important tip for farmers fighting these weeds in their corn or soybean fields is to act early by starting with a preemergence herbicide to keep weeds small and easier to control.”

Talk with your Corteva Agriscience territory manager about how you can help your customers get a jump on weeds in corn and soybean fields next spring. For more information about Resicore and Sonic, visit PowerOverWeeds.com and BattleWeeds.com, respectively.

Nebraska soybean field protected by Sonic herbicide.

A Nebraska soybean field is protected by a preemergence application of Sonic® herbicide.

Nebraska cornfield protected by Resicore herbicide

Resicore® herbicide gave this Nebraska cornfield a powerful start against yield-robbing weeds, such as marestail and waterhemp.

®™Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. Resicore and Sonic are not registered for sale or use in all states. Resicore is not registered 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.

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

Encourage maximum yield with a fine eye for nitrogen deficiency

Realizing maximum yield in the fall begins with a holistic approach to nutrient management. This includes making sure phosphorus (P), potassium (K) and nitrogen (N) levels are adequate to support growth throughout the entire season and knowing how to visually identify those levels in the corn crop.

Applied nitrogen is particularly vulnerable to leaching, meaning the loss of nitrates into the groundwater, and denitrification, the escape of greenhouse gases into the environment. If a plant can’t absorb enough nitrogen through the soil, it will cannibalize its own internal sources of nitrogen — draining strength from its stalk and leaves. When that happens, weakened cornstalks, stalk rot and significantly reduced yield can result.

Three signs of nitrogen deficiency in corn to look for are:

  • Firing of leaves (yellowing begins at the leaf tip and progresses along the midrib)
  • Pale green plants
  • Stunted growth and spindly stalks

Fields at the highest risk of nitrogen loss include fall- and preplant-applied nitrogen fields, those composed of sandy soils and fields with poor drainage.

Take time now to scout fields, evaluate your customers’ nutrient management programs and consider changes to maximize efficient nitrogen by protecting applications with a nitrogen stabilizer such as Instinct® or N-Serve®. Instinct and N-Serve help ensure that applied nitrogen is still available in the root zone for plant uptake, especially if heavy rains occurred after nitrogen was applied.

Corn displaying signs of nitrogen deficiency

®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. Do not fall-apply anhydrous ammonia south of Highway 16 in the state of Illinois. Always read and follow label directions. ©2018 Corteva Agriscience

Weed control Q&A

Operation: Clean Fields is a retailer-exclusive website designed to help retailers learn more about soybean topics that matter to them and their customers. Throughout the year, retailers have sent in their own questions about soybean herbicides and field experts have answered several online.

Michigan retailer Chad submitted the following question to Operation: Clean Fields and will receive a $250 gift card as a reward. Corteva Agriscience, Agriculture Division of DowDuPont, market development specialist Kent Bennis has the answer.

Q: When layering a preemergence program on soybeans, what is the best method to follow it with postemergence?

A: Thank you for your question, Chad. DuPont EverpreX herbicide is an excellent postemergence herbicide to follow a layered preemergence program. We recommend applying EverpreX at the second to third trifoliate stage in 15-inch or narrower soybean rows. For 30-inch rows, we recommend targeting the fourth to fifth trifoliate stage for residual applications of EverpreX. This application timing allows EverpreX to be absorbed into the soil earlier, which opens the window for additional post applications.

Visit here for more information about EverpreX.

Read more Q&A’s and send in your questions for a chance to receive a $250 gift card by visiting OperationCleanFields.com.

®™Trademarks of Dow AgroSciences, DuPont or Pioneer and their affiliated companies or respective owners. DuPont EverpreX herbicide 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. Always read and follow label directions.

Don’t get trapped by a temperature inversion

A thin layer of fog sits atop a young crop in the early morning hours. It has a peaceful appearance, but these conditions may provoke horizontal movement of surface-level air, causing any trapped particles — such as pesticides — to move into neighboring fields.

What you see may be a temperature inversion. A layer of warm air covers a layer of cooler air and acts like a lid, preventing the cooler air from rising and mixing with the upper atmosphere.

According to the National Oceanic and Atmospheric Administration (NOAA), temperature inversions commonly form when the air near the ground cools at night. Calm winds, clear skies and long nights increase the likelihood of a temperature inversion occurring.

Gases trapped near the surface can’t mix with the warmer air above and dissipate naturally, so they hover near the ground and often drift sideways. Pesticides hanging in this layer of air can move into neighboring fields, lawns and gardens with unintended consequences.

“We want a light wind — 3 to 10 miles per hour — when making a herbicide application,” says Haley Nabors, Enlist field specialist. Within a temperature inversion, applied products can move great distances. “Furthermore, the direction the trapped air will move is unpredictable.”

Warn growers about temperature inversions
You can remind customers or anyone applying crop protection products to watch for common conditions that create temperature inversions. If these conditions occur, avoid applying any herbicides until the environment is favorable for a successful, on-target application.

Temperature inversions are most likely to occur when wind speeds are less than 3 mph and/or if the temperature is within five degrees of the nighttime low. That’s why spraying in wind conditions of zero to 3 mph is never recommended.

Technology helps identify conditions
All applicators should plan to check local weather conditions before making any herbicide application.

“If you identify a temperature inversion, do not make an application,” Nabors says. “The spray particles may never hit the intended surface, which makes the application less effective for your crop. If it doesn’t reach the weeds, you’re wasting your herbicide dollars.”

In addition, you run the risk of damaging susceptible plants in nearby fields, lawns and gardens.

Nabors urges you to check conditions before every application and even during applications. Weather apps for smartphones and tablets can be useful tools to monitor changing weather throughout a herbicide application. Always monitor conditions while you are in the field. In addition to weather apps or websites, an inexpensive windsock shows wind direction. An anemometer provides wind speed. A quick check of the temperature also is a good idea.

If you prefer a visual sign, releasing smoke or powder can indicate particle movement. The smoke or powder should drift gently with the wind. If it gathers in a stationary, suspended cloud, that indicates a temperature inversion, which may cause an application to move far and wide.

“With Enlist herbicides, we recommend a minimum wind speed of 3 mph,” Nabors says. “This allows some stirring in the atmosphere to dissipate any potential inversion layer.”

Remember, a complete lack of wind is a warning. Do not apply herbicides. Wait until later in the day and check again for a more favorable application environment.

Trademark of The Dow Chemical Company (“Dow”) or E. I. du Pont de Nemours and Company (“DuPont”) or affiliated companies of Dow or DuPont. Enlist 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 herbicides are the only 2,4-D products authorized for use in Enlist crops. Always read and follow label directions. ©2018 Dow AgroSciences LLC