Category Archives: Guest Column

More farmers learning benefits of Enlist™ soybeans this summer

Jonathan Siebert

Jonathan Siebert
Enlist field sales leader
Dow AgroSciences

A mild winter and a wet spring may be providing weeds an ideal opportunity to get established early this growing season. These conditions also may be giving some farmers an ideal opportunity to learn about Enlist Duo® herbicide in their own fields.

This summer, seed production growers are raising Enlist soybeans under the Dow AgroSciences Field Forward program. They’re getting a first-hand look at this novel weed control technology before it is commercially available.

Like other farmers who’ve planted Enlist soybeans, they’re anticipating excellent control of even the toughest weeds. You can follow some of these soybean producers throughout the growing season on Experiencing Enlist as they apply Enlist Duo herbicide in their fields and share their experiences with this new technology.

Enlist Duo is a proprietary blend of glyphosate and 2,4-D choline. It provides excellent postemergence weed control in Enlist crops: soybeans, corn and cotton. Dow AgroSciences is prepared to launch Enlist soybeans once necessary import approvals are obtained.

Visit Experiencing Enlist to see what farmers are saying about the new technology. These timely reports will help you and your customers learn more about the Enlist weed control system. Also check out our YouTube channel or follow us on Twitter at @EnlistOnline.

Enlist soybeans

Farmers from around the Midwest are growing Enlist soybeans for seed production under the Field Forward program. See their stories on Experiencing Enlist throughout the growing season.

®™DOW Diamond, Colex-D, Enlist, Enlist Duo and the Enlist Logo are trademarks of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Enlist Duo herbicide is 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. Always read and follow label directions. ©2017 Dow AgroSciences LLC 

Stacked herbicide resistance progresses across Midwest

Dave Ruen
Field Scientist
Dow AgroSciences

For nearly two decades, herbicide-resistant weeds have swept across the Midwest. Today, more fields than ever are facing weeds with resistance to multiple modes of action. With new postemergence technologies entering the market, farmers need to remain vigilant and avoid repetitive use of one active ingredient by using residual herbicides in a program approach to control their tough weeds multiple ways.

We’re trying to manage the expansion of glyphosate-resistant weeds — marestail, waterhemp and giant ragweed, for example. There’s no question in my mind that we’ve slowed the advance of glyphosate resistance due to the resurgent use of soil-applied herbicides, such as Sonic® herbicide in soybeans.

Some weeds, such as tall waterhemp, are developing resistance to multiple modes of action, an issue farmers must keep their eyes on.

In Kansas, some tall waterhemp plants are now resistant to HPPD inhibitors, ALS inhibitors and atrazine. Meanwhile in Illinois, tall waterhemp is documented with multiple resistance to PPO inhibitors, ALS inhibitors and atrazine.

In the last few years, we’ve seen a slow expansion of herbicide-resistant weeds, particularly in the upper Midwest. It’s important that we continue to increase the use of residual herbicides and not skimp on rates.

To stop weeds from robbing yield, carefully scout soybean fields and use a targeted program approach this season. Start with a clean field by applying a broad-spectrum, preemergence herbicide that has powerful activity on the Amaranthus species, including pigweeds, waterhemps, and Palmer and Powell amaranth. With two nonglyphosate modes of action, Sonic herbicide is proven to provide 94 percent control of waterhemp and 93 percent control of Palmer amaranth.

For more information about how your customers can take control of herbicide-resistant weeds in their soybean fields, visit OperationCleanFields.com.

®Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Sonic 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. ©2017 Dow AgroSciences LLC

Get power to do more in your community

Lyndsie Kaehler
Corn Herbicides
Product Manager
Dow AgroSciences

When farmers achieve power over weeds with Resicore® herbicide, they spend less time worrying about yield-robbing waterhemp, marestail or ragweed and have the power to do more. That’s why Resicore is sponsoring a contest to give farmers the chance to visit their dream sports field and $10,000 to donate to a local sports field or community space. Three farmers will win!

Entering is easy — all your customers need to do is submit a photo that demonstrates the power on their farm and answer a few simple questions at PowerToDoMore.com by March 12, 2017. The photo might include their fields, family, friends, pets, equipment, livestock or whatever else represents power to the farmer.

If one of your customers is a winner, you, as the retailer, will win a $500 gift card. All you need to do is encourage your customers to enter.

Powerful performance in 2016 field trials

In 2016 Dow AgroSciences field trials across the Midwest, Resicore herbicide provided excellent control of the toughest weeds found in corn, such as lambsquarters, common ragweed, giant foxtail, glyphosate-resistant waterhemp and glyphosate-resistant Palmer amaranth. Seven to nine weeks after application, Resicore controlled 100 percent of lambsquarters, common ragweed and giant foxtail, plus 96 percent control of waterhemp. When tank-mixed with atrazine, Resicore controlled 93 percent of Palmer amaranth and increased waterhemp control to 99 percent.

With three unique modes of action, Resicore® herbicide controls more than 70 broadleaf weeds and grasses, including herbicide-resistant species. Resicore is powerful enough to be sprayed alone and it can also be tank-mixed with atrazine, glyphosate and other corn herbicides.

To learn more about how your customers can use Resicore to control tough weeds this season, visit PowerOverWeeds.com.

®Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Resicore is not registered for sale or use in all states. Resicore is 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. ©2017 Dow AgroSciences LLC

Helping growers choose effective herbicides that stay on target

Haley Nabors,Enlist field specialistDow AgroSciences

Haley Nabors
Enlist field specialist
Dow AgroSciences

Growers are anticipating new postemergence herbicide options for troublesome weeds. It may seem difficult to understand which technologies provide which benefits. The Enlist weed control system is designed to offer excellent weed control along with other advantages.

The Enlist system allows growers to use Enlist Duo® herbicide featuring Colex-D® technology in corn and soybeans. This technology is the real difference-maker for this landmark formulation. Colex-D technology enables growers to control weeds with less concern about drift and volatility than other potential solutions.

Enlist Duo is a combination of new 2,4-D choline and glyphosate, providing two valuable modes of action and four key benefits:

  • Minimized potential for physical drift: Compared with a tank mix of traditional 2,4-D and glyphosate, Enlist Duo herbicide with Colex-D technology reduces physical drift by up to 90 percent when applied with a low-drift nozzle.
  • Near-zero volatility: With new 2,4-D choline, volatility is reduced by 96 percent compared with 2,4-D ester.
  • Low odor: Users report there’s very little odor, a definite improvement on traditional 2,4-D formulations.
  • Improved handling characteristics: No salting out in the tank and better cold temperature stability for winter storage. And tank cleanout is simple: Growers can rinse with water — 10 percent of the sprayer volume — when moving to glyphosate-tolerant corn. For all other crops, all that’s required is a triple rinse with water.

Enlist Duo works in the real world. For instance, the label features manageable buffer requirements. There is no field separation needed when applying Enlist Duo next to fields with corn or soybeans that do not contain the Enlist trait. The registered label for Enlist Duo® herbicide includes a 30-foot downwind buffer for sensitive areas.

We continue to have a grower-friendly federal label, registered by the Environmental Protection Agency for use on Enlist corn and soybeans, which makes Enlist Duo an easier-to-use herbicide for growers. We’ve seen that when growers experience the weed control, ease of use and lack of off-target movement, they prefer the Enlist system.

Enlist Duo offers valuable flexibility. Growers can choose from 23 approved nozzles for application. In addition, there are nearly 140 tank-mix products available for use with Enlist Duo.

Retailers can provide additional benefits to customers by understanding these advantages and helping growers make decisions that will control tough weeds and preserve peace of mind in these days when herbicide movement is creating increasing concern.

Visit Enlist.com to learn more about the technology in the Enlist weed control system, including Enlist traits and Enlist Duo herbicide with Colex-D technology. You also can visit our YouTube channel or follow us on Twitter at @Enlist Online.

Enlist Duo® herbicide with Colex-D® technology delivers a 90 percent reduction in drift potential when applied with approved low-drift nozzles.

Enlist Duo® herbicide with Colex-D® technology delivers a 90 percent reduction in drift potential when applied with approved low-drift nozzles.

®™DOW Diamond, Colex-D, Enlist, Enlist Duo and the Enlist Logos are trademarks of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Enlist Duo 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. ©2016 Dow AgroSciences LLC

A burndown now can mean a clean slate later

Jeff Ellis, Field Scientist, Dow AgroSciences

Jeff Ellis, Field Scientist
Dow AgroSciences

Help your customers take action this fall to start with a clean slate in spring. Tough weeds, such as marestail, can cause problems year-round, often necessitating a fall burndown application in soybean fields.

A burndown application can set no-till or reduced-till growers up for success when spring planting rolls around by eliminating weed pressure that causes issues at planting.

Scouting fields for weeds is the first step to determine if a fall burndown application is right for your customers. Should scouting uncover winter annual weeds, such as marestail, chickweed or henbit, a fall burndown application can help eliminate potential weed competition.

In Midwest fields, marestail is becoming an increasing problem as it can emerge in fall or early spring. Fall-emerged marestail becomes dormant over the winter and rapidly emerges in early spring, begins to flower in July, sets and disperses seed from August to October and then dies.1 This growth pattern coupled with its rapid seed production can cause serious issues for growers because marestail can significantly diminish yield when present at planting.

A fall application of a preemergence herbicide tank-mixed with 2,4-D or glyphosate can be an effective way to ensure fields will start clean in the spring. Sonic® and Surveil® herbicides from Dow AgroSciences are two preemergence options that offer residual control to keep fields cleaner longer.

Pending registration from the U.S. Environment Protection Agency, Elevore herbicide will give growers a chance to elevate their burndown applications. Elevore will provide thorough control of labeled broadleaf weeds, including ALS- and glyphosate-resistant species, plus marestail up to 8 inches tall. Elevore has an anticipated registration of 2017.

Set your customers up for success this season. For more information on fall burndown applications, visit BattleWeeds.com.

1Michigan State University Weed Science website. 2016. Horseweed (Marestail) (Conyza canadensis (L.) Cronq.). http://www.msuweeds.com/worst-weeds/marestail/

®™DOW Diamond, Elevore, Sonic and Surveil are trademarks of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Elevore is not yet registered with the U.S. EPA. Federal registration is pending. This presentation is intended to provide technical information only and is not an offer for sale of product. Sonic and Surveil are 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. ©2016 Dow AgroSciences LLC

Resicore® herbicide impresses corn growers in the first season

Lyndsie Kaehler
Product Manager, Corn Herbicides
Dow AgroSciences

Keeping cornfields clean until the crop reaches canopy closure is an important step for maximum yield potential at harvest. In the first season, Resicore® corn herbicide is helping growers across the Midwest achieve this vital goal with impressive power over weeds.

Though Resicore is in its infancy, growers and ag retailers across the Midwest, including Nebraska, Illinois and Missouri, are seeing long-awaited results in weed control. Because of the extended residual control and multiple modes of action, growers and retailers are reporting contained weed pressure several weeks after application.

Corn and soybean grower Steve Plambeck from Kenesaw, Nebraska, custom-applied Resicore at the end of April. With resistance issues and tough weeds like waterhemp and Palmer amaranth, Plambeck said he was in need of a product with multiple modes of action that is effective on these broadleaf species. Resicore not only worked, but it also kept his fields clean until the corn reached canopy.

“I kept watching the fields, and you always expect a few escapes, and this was really staying clean,” Plambeck says. “It’s really impressive, and it’s great to not have to go back and rescue anything.”

In the first season, Resicore has exceeded expectations by providing power over troublesome weed species. Dow AgroSciences field trials have shown 97 percent control of Palmer amaranth, waterhemp and giant ragweed, which are significant results for growers consistently plagued by heavy weed pressure.*

Resicore® herbicide is a novel formulation of three active ingredients with three nonglyphosate and nonatrazine modes of action to control more than 70 broadleaf weeds and grasses. With the combination of acetochlor, mesotrione and clopyralid, Resicore gives growers the power over weeds they need for resounding yield potential at harvest.

See the power of Resicore in more clean cornfields across the Midwest at PowerOverWeeds.com/From-the-Field.

*2014-15 Dow AgroSciences field trials, average weed control eight weeks after application of Resicore herbicide at 1x label rate for soil type.

guest-illinoisfield

This northern Illinois field tends to face infestations of herbicide-resistant waterhemp. After an application of 2.5 qt./A Resicore® herbicide and 1 pt./A atrazine, the field stayed clean through canopy closure.

Nebraska field seven weeks after an application of 2.5 qt./A Resicore® herbicide herbicide with 1 qt. atrazine.

Nebraska field seven weeks after an application of 2.5 qt./A Resicore® herbicide herbicide with 1 qt. atrazine.

Missouri field four weeks after an application of 2.5 qt./A Resicore® herbicide.

Missouri field four weeks after an application of 2.5 qt./A Resicore® herbicide.

®Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Resicore is not registered for sale or use in all states. Resicore is 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. ©2016 Dow AgroSciences LLC

Preparation makes herbicide application more efficient and effective

Jonathan Siebert, Ph.D
Enlist field sales leader
Dow AgroSciences

Jonathan Siebert, Ph.D.

Applicators who follow basic principles can make their herbicide applications more effective, efficient and on target. From sprayer preparation to cleanup, diligence pays big dividends. Take the time to address a few important steps to save time, money and headaches while getting the greatest performance and value from the herbicides you apply.

The Enlist weed control system allows growers and applicators to use Enlist Duo® herbicide in corn and soybeans, which can help simplify postemergence application efforts. Enlist Duo is not yet registered for use on Enlist cotton.

It’s critical to follow label directions and be aware of neighboring crops and sensitive areas. Pay attention to wind speed and direction as well as adhere to product buffer requirements.

Know when to go
Timing is important for making the most positive impact with your postemergence herbicide application. Be aware of the crop stage and treat weeds when they’re small — preferably under 4 inches tall. Monitor the weather and try to make applications in as timely a manner as possible. When you do get into the field, it’s important to keep the boom height at the lowest approved setting to minimize drift potential.

Of course, it’s important to recommend to growers the herbicides that will control the weeds that are troubling a specific field.  For instance, growers facing tough-to-control or glyphosate-resistant weeds need a herbicide that can handle those weeds. Enlist Duo, which combines glyphosate and new 2,4-D choline, offers two modes of action to control a long list of troublesome weed species in Enlist crops.

If you’re mixing other products in the tank, make sure they’re compatible with the herbicide and that you’re using nozzles that are approved for all products you’re applying. The only permitted tank-mix partners for Enlist Duo are listed at EnlistTankMix.com.

Select appropriate nozzles
Nozzles are not designed to last the lifetime of a sprayer. Each brand and model has a different effective life span. Make sure the nozzles you use are appropriate for the herbicide you’re applying. For instance, the label for Enlist Duo lists 23 nozzles with approved spray pressure ranges.

With a wide array of approved nozzles, Enlist Duo® herbicide provides growers some added flexibility. You may be able to select a nozzle that’s appropriate for multiple purposes. This can save some time during the busy application season.

When applying Enlist Duo, adjust spray pressure to an approved setting to ensure adequate plant coverage and to minimize drift potential.

Cleaning sprayer equipment
Cleanup is extremely important to avoid unintentional contamination of your next chemical load. Most applicators understand the importance of tank cleanout. Make sure to follow product label directions on tank cleanout after herbicide application.

But don’t stop with the tank: Make sure to clean hoses, filters, screens and nozzles. Residue can collect in tiny spaces in these components. These can be easy to overlook, but neglecting them can lead to damage of susceptible crops when you enter another field.

Applicators can be more successful with a postemergence herbicide application when they prep their equipment, choose nozzles carefully, monitor weather and growing conditions, follow recommended application timing and thoroughly clean their entire sprayer components. It can help save time and money while providing peace of mind.

Visit Enlist.com to learn more about the latest herbicide technology and understand the benefits of the Enlist weed control system.

herbicide application

®™DOW Diamond, Enlist, Enlist Duo and the Enlist Logo are trademarks of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Enlist Duo herbicide is not yet registered for use on Enlist cotton. Enlist Duo 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. ©2016 Dow AgroSciences LLC