Monthly Archives: May 2019

Help farmers stay the course even in challenging conditions

By: Jeff Moon, market development specialist, Corteva Agriscience, Agriculture Division of DowDuPont        

Last fall’s weather conditions and late harvest had a big impact on soybean farmers. Combine that impact with current economic issues, and they are likely feeling the pinch of limited dollars for inputs this spring. While the temptation for many is to rethink or even cut back on weed control plans, retailers should be ready to help farmers stay the course to keep yield potential intact.

That’s especially true as weed pressure in many areas is as strong as ever, thanks to an influx of tough winter annuals like marestail. Germinating during last fall’s favorable conditions, they’ve overwintered to reemerge in force this spring. To make matters worse, this spring has seen another round of cool, wet conditions to further saturate soils in many areas — pushing back planting and allowing weeds extra time to grow into problems.

Having a strategic weed control plan in place that accounts for potentially challenging conditions allows you and your customers to make adjustments instead of rash decisions. For example, fewer input dollars or a tighter planting window might tempt some farmers to skip preemergence herbicide applications and concentrate only on a postemergence program. But many of today’s toughest weeds are very difficult to control with only postemergence applications. As the season progresses, farmers will be unable to catch up with these weeds, and the real pain could come at harvest.

Instead, developing a strategic weed control plan and then staying the course provides the best opportunity for maximum yield at season’s end. Consider starting with a preemergence herbicide in early spring to keep weeds small and easier to control. In soybeans, Sonic® herbicide when applied as a preemergence provides broad-spectrum, residual control, making postemergence applications more effective. And Sonic is flexible enough to be applied either pre- or postplant. This helps growers plant whenever the field is fit.

When cool, wet spring conditions make it difficult to apply early season herbicides, another effective option is Trivence® herbicide, which combines burndown of emerging weeds with residual control that lasts through crop emergence.

Farmers should then layer residual herbicides to help keep fields clean longer, typically through crop canopy closure. In soybeans, follow Sonic herbicide with a postemergence product, such as DuPont EverpreX® herbicide, and consider adding glyphosate or fomesafen for even more modes of action.

Sound advice is the bedrock of your customer relationships. Having a strategic weed control plan in place allows you to more easily guide farmers through conditions like we’re seeing this season and serves to solidify those relationships. Weeds are relentless year after year, and the ability to act early and often against them keeps farmers ahead during the season, all the way to harvest.

™®Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. Arylex is a registered active ingredient. Elevore and Sonic 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. EverpreX is not registered in all states. See your DuPont retailer or representative for availability in your state. Always read and follow label directions. ©2019 Dow AgroSciences LLC

Get the facts to maximize your nitrogen knowledge

As the old saying goes, “you learn something new every day.” One good place for retailers to do that is MaxFacts.com. It’s a new online resource with which you can learn more about nitrogen application, nutrient management and the portfolio of nitrogen stabilizers, including N-Serve® and Instinct®, from Corteva Agriscience, Agriculture Division of DowDuPont. The goal of Max Facts is to help you better serve your customers.

Expand your knowledge
Within Max Facts, you’ll find helpful information from agronomic blogs, how-tos and Q&As with experts from the field. You can use learning modules to earn continuing education units. Max Facts is a one-stop-shop where you will learn more and put that education to the test.

Make your job easier
You’ll then be able to give your customers even better advice than before. Farmers rely on retailers like you for the latest and best guidance to ensure successful growing seasons year after year.

“When should my customers apply nitrogen? Which nitrogen stabilizers will best protect that investment?” These are just a couple of the questions Max Facts can help you answer. Max Facts can help you more confidently guide your farmers through their toughest nitrogen-related issues and questions. The result is a better bottom line for the farmer, which is a win for you, too.

Exclusive for retailers
Max Facts is an exclusive website just for retailers, and it’s easy to sign up. All you need to do is provide a few pieces of information: your name, state, ZIP code and retailer name. Visit MaxFacts.com to get started.

MaxFacts.com

™®Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their 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. ©2019 Dow AgroSciences LLC

Hit the application “sweet spot” for exceptional weed control

Hit the sweet spot with postemergence application of Enlist herbicides to get control of stubborn and persistent weeds.

No matter how carefully farmers plan their herbicide applications, it seems Mother Nature manages to create obstacles. Although it can be tough to overcome the weather, retailers can help farmers by reminding them to try to take advantage of herbicide application opportunities before weeds get too big.

Every herbicide label offers directions on when to make applications for best results. Paying attention to weed size will enhance weed control.

For customers planting Enlist E3 soybeans or Enlist corn, applications will deliver optimum weed control when farmers spray weeds before they get larger than 6 inches and when weeds are actively growing.

Walking fields, finding weeds
Scouting fields regularly can help growers pinpoint the best time to spray. Retailers can help their customers hit the target by reminding them to scout or actively walking fields with them.

Making the application when weeds are more vulnerable leads to greater success and cleaner fields. Farmers who are using Enlist herbicides are seeing this on their acres.

“Four inches is the tallest I ever want to see any weed,” says Grant Strom, an Illinois farmer who grows Enlist E3 soybeans. He applies Enlist One® herbicide before activity can wear off from his residual application and allow weeds to start growing again. By hitting weeds where and when it hurts, he’s keeping his soybean fields much cleaner.

Ohio farmer Kevin Miller echoes the principles of keeping weeds under control early. He started his weed control program in 2018 with a burndown using 2,4-D plus a residual product featuring three modes of action. Before the residual activity waned, Miller followed with a tank mix featuring Enlist One herbicide. He says he then can monitor the crop and, if necessary, come back with a second postemergence application featuring glufosinate.

Stay on top of weeds
“Don’t wait until weeds are taking over the field to make your first postemergence application,” suggests Shawna Hubbard, Trait Herbicides Product Manager for Corteva Agriscience, Agriculture Division of DowDuPont. “For really tough weed pressure early in the postemergence window, consider tank-mixing a residual with a postemergence herbicide such as Enlist One and Enlist Duo for longer-lasting control to get you to canopy.”

Learn more about postemergence applications of Enlist One and Enlist Duo® herbicides by talking to a Corteva Agriscience territory manager, by going to Enlist.com or by using Enlist Ahead resources. Also check out the YouTube channel or Twitter at @EnlistOnline.

™®Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. Enlist E3 soybean technology is jointly developed by Dow AgroSciences LLC and MS Technologies LLC.” 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

Show off #CortevaClean fields this season

A field free of weeds? We call that #CortevaClean. Now through Sunday, June 30, your customers can submit a picture of their clean fields for a chance to win 1 of 8 Yeti coolers! We want to see pictures showing off clean fields that used products from Corteva Agriscience, Agriculture Division of DowDuPont.

We’re looking for pictures from a variety of fields that used products from Corteva Agriscience, including: corn, soybean, wheat and even rice. We want to see your customers’ fields and share their successes with others.

How to enter
This contest is open to farmers now through Sunday, June 30.

To enter, farmers can share their photo one of three ways:

  • Tweet a photo with hashtag #CortevaClean.
  • Instagram a photo with hashtag #CortevaClean.
  • Submit a photo on the contest website.

This field is #CortevaClean.

No matter how your customers choose to participate, they MUST visit the website to fill out a short entry form to let Corteva Agriscience know where to look for the photo.

The Prizes
Corteva Agriscience will choose eight winners. Winners will receive a Yeti Tundra Haul Cooler, valued at $399.99 MSRP, to keep beverages cool in the field on those hot days.

Have Fun
Encourage your customers to get creative with their photos, have fun and shoot a dynamic image! Corteva Agriscience also invites you to check out the other submissions on the website and on social media. Get your friends and family involved and ask them to like and share your customers’ photos.

Go to the #CortevaClean contest website now to get started. We can’t wait to see photos from your area!

Strike out weeds with multiple herbicide modes of action

On a baseball field, few pitchers can keep hitters at bay throwing only one pitch. The most successful pitchers know how to change things up and keep hitters off balance. The same concept applies in farmers’ fields when it comes to weed control.

Successful weed control – both now and in the future – depends on attacking weeds with multiple herbicide modes of action. Retailers can help their customers develop smart game plans and adopt weed management technologies that allow them to keep weeds off balance and in check all growing season long.

The key? Develop a program approach that takes advantage of different herbicide modes of action. For instance, the Enlist weed control system is designed for burndown applications, preemergence residual applications and postemergence applications enabling the use of three or more modes of action to every field. Helping customers identify and use multiple modes of action gives them the opportunity for clean, weed-free fields.

Cover all the bases
A good weed control program starts will a clean field at planting. Burndown applications are important, even when weather issues delay planting. Retailers can help customers by recommending effective burndown herbicides such as Elevore®, Enlist One® or Enlist Duo® herbicides.

After planting, preemergence herbicides can add another mode of action. This can pick off weeds that have escaped or resisted the burndown treatment. Throwing a curve ball at weeds can subdue them and help the crop get off to a good, strong start.

“We need to get residual herbicides on the crop to suppress weeds, even when weather may tempt us to skip our preemergence applications,” says Shawna Hubbard, Trait Herbicides Product Manager for Corteva Agriscience, Agriculture Division of DowDuPont. “Be consistent in using appropriate rates for weed pressure in the field. This ensures we’re helping prolong control of weeds until we’re ready to make postemergence applications.”

Remind customers to consider preemergent herbicides that offer solid residual activity AND offer a different mode of action than their burndown or postemergence herbicides. For instance, Sonic® herbicide offers two modes of action while Trivence® herbicide delivers three modes of action.

A good scouting report
Once the crop has emerged, farmers need to scout their fields and act promptly when weeds begin to appear. Follow label directions; however, it’s generally best to hit weeds when they’re small and more likely to succumb to the postemergence treatment.

Timing is critical to maximize control of any postemergence application. Make sure customers are basing decisions on the size of the weeds and not the calendar alone.

“Sometimes, we may need to make an initial postemergence herbicide application earlier than we had planned,” Hubbard says. “With Enlist One or Enlist Duo herbicides, farmers should apply when weeds are no more than 6 inches tall.”

Get the bullpen ready
If you need to follow up with a second postemergence application due to a later flush of weeds, the Enlist weed control system gives you flexibility. The wider application window helps hit weeds when they are vulnerable. In addition, both Enlist herbicides feature 2,4-D choline with inherently low volatility. For two modes of action, choose either Enlist Duo with glyphosate or tank mix Enlist One with glufosinate.

Farmers who learn to change up their herbicide modes of action can keep striking out weeds all summer long. The result can be a sweet victory celebration at harvest.

Learn more about the Enlist weed control system at Enlist.com or by using the Enlist Ahead resource. Also check out the YouTube channel or Twitter at @EnlistOnline.

Using an array of herbicides that offer multiple modes of action goes a long way in producing a farmer’s “field of dreams.”

™®Elevore, Enlist Duo, Enlist One, Sonic and Trivence are 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. 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. ©2019 Dow AgroSciences LLC

Q&A: Herbicide resistance in the Upper Midwest

Herbicide-resistant weeds are top threats to corn and soybean yield potential. Jeff Moon, market development specialist with Corteva Agriscience, Agriculture Division of DowDuPont, recently shared insights on the state of resistant weeds and herbicide options. Moon works with retailers and territory managers with Corteva Agriscience in Minnesota and Wisconsin. Read the Q&A below for Moon’s advice to control resistant weeds this season.

  1. What are the top three herbicide-resistant weeds affecting corn and soybean farmers in your area?
    Waterhemp, giant ragweed and lambsquarters, in that order. Waterhemp is in the pigweed family, which has known resistance issues, so it seems to be the focus of conversations right now.
  2. Which herbicide-resistant weeds have most recently shown up?
    The further west you go, kochia becomes an issue. We’re also having discussions about Palmer amaranth moving in and the concerns about that. In the heart of corn and soybean country, the herbicide-resistant weeds we mostly see are waterhemp, giant and common ragweed and lambsquarters.
  3. When new resistance is found in your area, what is the first step to combating it?
    It starts with a discussion between the retailer and farmer. They both pay attention to local conditions, agronomy news and university research. Farmers are on the look-out for new threats and will make an adjustment if needed. Before changing products, they might just tweak their current program to make it better. This means they might change herbicide rates or if they’re doing one pass, they’ll adjust to a two-pass or change the tank mix.
  4. Which herbicides are particularly effective on these herbicide-resistant species?
    We are fortunate to have several residual and burndown products from Corteva Agriscience, Agriculture Division of DowDuPont, that fit the way growers want to farm.

    If your customers are using a multi-product approach in corn, one of the best ways to control resistant weeds is to use SureStart® II herbicide or Resicore® herbicide pre- or postemergence. I’ve seen farmers have success putting Surpass® NXT herbicide or Keystone® NXT herbicide down first, then use SureStart II or Resicore over the top on the second pass to control remaining weeds and add a residual layer. This is a great one-two punch to get corn to canopy.

    In soybeans, it starts with a strong preemerge. Sonic® and Surveil® herbicides are great options to control broadleaf weeds early. In a burndown situation, DuPont Enlite® herbicide can burndown emerged weeds and provide residual activity. Another burndown option is Elevore® herbicide, which prevents regrowth of many resistant weeds, including marestail. Elevore has a low use rate and fits well in reduced or no-till systems.

Talk with your local territory manager from Corteva Agriscience or go to Corteva.US to learn more about corn and soybean herbicides that can help your customers control herbicide-resistant weeds.

™®Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. Keystone NXT is a Restricted Use Pesticide. Keystone NXT is not registered for sale, distribution or used in all states. Elevore, Resicore, Sonic, SureStart II, Surpass NXT and Surveil are not registered for sale or use in all states. Keystone NXT, Resicore, SureStart II and Surpass NXT 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

Weed of the Month: Cocklebur

  • Common name: Common cocklebur
  • Scientific name: Xanthium strumarium1
  • Life cycle: Summer annual1
  • Seedlings: Stem is purple in color with large cotyledons.
  • Leaf arrangement: Early leaves are arranged in an opposite pattern; mature leaves are arranged in an alternate pattern.

Fast facts

  • Common cocklebur can grow between 2 to 4 feet tall.2
  • Common cocklebur can be found in agricultural fields, on roadsides, in ditches, in pastures, in orchards and in unmanaged places.2
  • Each bur contains two seeds — with one larger than the other.1
  • Cocklebur seeds and seedlings can be fatal to livestock if the animal ingests 1% or more of its body weight.2
  • Mature plants have thick stems with purple or black spots.2
  • The leaves of the mature plant have a distinct scent.2
  • Male flowers are red and form in clusters with female flowers below on the stalk. Cocklebur flowers during the months of July to October.2
  • The cocklebur seeds are brown, egg-shaped and prickly.1

Resistance statistics*

  • According to WeedScience.org, herbicide-resistant common cocklebur has been discovered in 15 states:* Alabama, Arkansas, Illinois, Iowa, Kansas, Louisiana, Maryland, Minnesota, Mississippi, Missouri, North Carolina, Ohio, Oklahoma, South Carolina and Tennessee.

*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 Herbicides

DuPont Cinch® ATZ herbicide
DuPont Realm® Q 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
Resicore® herbicide
SureStart® II herbicide

Soybean Herbicides
Durango® DMA® herbicide
DuPont EverpreX® 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
FirstRate® herbicide
Sonic® herbicide
Surveil® herbicide
DuPontAfforia® herbicide
DuPontEnlite® herbicide
DuPont™ FeXapan™ herbicide Plus VaporGrip® Technology
DuPont Trivence® herbicide


Sources:

1University of Illinois Extension and Outreach, Department of Crop Sciences. 2019. Common Cocklebur. http://extension.cropsciences.illinois.edu/fieldcrops/weeds/common_cocklebur/
2University of California Agriculture and Natural Resources, Statewide Integrated Pest Management. 2019. Common Cocklebur. http://ipm.ucanr.edu/PMG/WEEDS/common_cocklebur.html

Additional Resource:

University of Missouri Division of Plant Sciences, Weed ID Guide. 2018. Common Cocklebur: Xanthium strumarium.https://weedid.missouri.edu/weedinfo.cfm?weed_id=314

Corteva Agriscience, the Corteva Agriscience Logo, Afforia, Cinch, DMA, DuPont, Durango, Elevore, Enlist, Enlist Duo, Enlist One, Enlite, EverpreX, FeXapan, FirstRate, FulTime, Keystone, Realm, Resicore, Sonic, SureStart, Surveil and Trivence are trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. VaporGrip® is a registered trademark of the Bayer Group. Cinch ATZ, FeXapan, FulTime NXT, Keystone LA NXT and Keystone NXT are Restricted Use Pesticides. Durango DMA, Elevore, FeXapan, FulTime NXT, Keystone LA NXT, Resicore, Sonic, SureStart II and Surveil are not registered for sale or use in all states. Keystone NXT is not available for sale, distribution 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. EverpreX is not registered in all states. See your DuPont retailer or representative for availability 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. Consult Enlist herbicide labels for weed species controlled. Always read and follow label directions. ©2019 Dow AgroSciences LLC