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Crop roundup: DuPont Pioneer and John Deere partner

Kacey Birchmier 11/08/2013 @ 4:13pm Agronomy & Conservation Editor for Successful Farming and Agriculture.com. I grew up on a fourth-generation farm in central Iowa. Follow me on twitter - @KaceyBirchmier.

DuPont Pioneer and John Deere partner to provide near real-time level data to growers, DuPont Pioneer introduces a new charcoal rot scoring system for customers, Mana extends its Roundup Ready Plus residual herbicide agreement, and Iowa State University compiles a list soybean cyst nematode resistant soybean varieties.

DuPont Pioneer and John Deere Offer Next Level of Decision Services to Growers

DuPont Pioneer and John Deere are collaborating to deliver near real-time field level data to growers. The companies are linking Pioneer Field 360 services, a suite of precision agronomy software, with John Deere Wireless Data Transfer architecture, JDLink and MyJohnDeere.

Pioneer will be among the first to leverage Wireless Data Transfer architecture, making the data exchange process faster and more convenient for growers and enabling them to make important seed, fertilizer and other input purchasing and management decisions with the latest field data. Growers can opt-in to upload their field data directly into Pioneer Field360 Select software from their John Deere GreenStar 3 2630 display through MyJohnDeere. Pioneer Field360 Select software also can be used to generate seeding and fertilizer prescription files and send them directly to the grower’s GreenStar 3 2630 displays in the field.

Pioneer and John Deere plan to make the service widely available in 2014 to anyone who has been equipped by a John Deere dealer for Wireless Data Transfer and has subscribed to the Pioneer Field360 Select software. Each company will market their software and solutions through their existing localized distribution channels.

Mana extends its Roundup Ready Plus residual herbicide agreement
Mana announced that it will extend its collaboration agreement with Monsanto for the inclusion of Cotoran 4L, Direx 4L and Pyrimax 3.2L cotton herbicides under the Roundup Ready PLUS Weed Management Solutions platform through 2016.

In 2014, cotton growers will receive a $2 per acre incentive when using Cotoran 4L, Direx 4L and Pyrimax 3.2L following Roundup Ready PLUS recommendations for glyphosate-resistant and tough-to-control weeds. New to the 2014 Mana/Monsanto partnership will be an expanded geography that includes Texas and Arizona. The Roundup Ready Plus platform will continue to provide options for Southeast and Delta cotton farmers.

Proactive residual herbicide strategies

Specific to resistance management in cotton, experts advise growers to approach every field proactively and use a residual herbicide at the ideal time for peak product performance.

Dave Downing, Mana brand leader, said combating resistance requires a systematic approach in overlapping residual herbicide applications with multiple modes of action, starting at pre-plant/pre-emergence, followed by post-emergence through layby.

“Today, if a field is infested with glyphosate-resistant pigweed, a cotton crop can’t be successfully grown or harvested without season-long use of residual inputs,” says Downing. “Fortunately, some of the best solutions for weed resistance are readily available in proven, time-tested chemistries, including Cotoran, Direx and Pyrimax.”

Cotoran 4L, applied pre-emergence, provides economical control of annual grasses and broadleaf weeds, especially glyphosate-resistant Palmer pigweed. It offers up to two and a half weeks of residual activity and can be tank mixed with other herbicides to broaden control.
Direx 4L is the preferred diuron product for Roundup Ready Plus and one of the best known herbicide performer against glyphosate-resistant Palmer pigweed and marestail (horseweed). Direx 4L can be applied as a pre-plant, pre-emergence or post-directed application from 6-inch cotton to layby. It can deliver up to three and a half weeks of residual activity. Pyrimax 3.2L is a popular glyphosate-resistance management tool with broad flexibility in application methods and timing, which can be used pre-emergence or post-emergence. Pyrimax 3.2L is proven to control a wide spectrum of weeds including Palmer pigweed, and is the preferred tank mix partner with Cotoran 4L to broaden control on fields showing signs of resistance.

DuPont Pioneer Introduces New Charcoal Rot Scoring System

DuPont Pioneer customers dealing with charcoal rot will have a new opportunity in 2014 to make Pioneer brand soybean variety selections with enhanced charcoal rot tolerance scores. These scores are backed with research information about tolerance to the fungus that causes charcoal rot.

This widespread disease normally favors hot, dry conditions and is made worse when drought occurs, causing stress to the plant. It can also occur in fields that experience optimal infection conditions but don’t show significant drought stress through the season. These varied conditions show the need for a score to rate tolerance to the disease independent of field conditions.    

“Just as we provide scores for SCN resistance or SDS tolerance on our soybean products, our current research allows us to provide dependable charcoal rot tolerance scoring for soybean varieties,” explains Les Kuhlman, DuPont Pioneer senior research scientist based in Lawrence, Kansas, who leads the research team studying the drought-related disease.

The introduction of this new score allows growers to select the degree of tolerance they need in a field, based on the expected level of charcoal rot pressure. Scores are based on Pioneer research observations of the comparative ability to tolerate the infection of the charcoal rot pathogen among various soybean varieties. The scores range from 1 to 9 on the Pioneer scale, with 1 being susceptible and 9 being resistant.  This score replaces the older CRDC (charcoal rot drought complex) score seen on previous varieties.    

“Each grower has a different situation when it comes to charcoal rot,” says Kuhlman.  “Some experience it with drought conditions and some do not, and now they can select soybean varieties based on their particular situation, thanks to these tolerance scores.”

While selecting soybean varieties with a charcoal rot tolerance score is very convenient, an integrated management approach is vital for reducing microsclerotia (a diagnostic symptom of charcoal rot) levels in the soil and stresses to the crop.

Hundreds of SCN-resistant Soybean Varieties Available for 2014

The soybean cyst nematode (SCN) is a serious yield-reducing pathogen of soybeans. It is present in many fields throughout the Midwest, wherever soybeans are grown. To produce profitable soybean yields in fields infested with SCN, farmers should grow SCN-resistant soybean varieties. SCN-resistant soybeans can produce high yields while keeping SCN population densities from increasing.

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