New Herbicides Ready

The newest batch of herbicides are out in the marketplace, and as always, your grower-customers rely on you to help them determine what products are best for their situation.

This means you need to have a pretty good understanding of these products yourself, but finding the time to talk with each manufacturer representative isn’t easy. That’s why Reid W. Acker, our fictional but competent in-house herbicide advisor, is back. He cornered several well-respected weed experts — Bill Johnson from Purdue University, Chris Boerboom at the University of Wisconsin, Ohio State University’s Mark Loux, Aaron Hager of the University of Illinois at Champaign-Urbana, and Iowa State University’s Bob Hartzler — to help sort through your key questions and concerns.

Dear Reid: Is there anything new this year that I should be excited about?

There are two new active ingredients, according to my Extension comrades. One is the fluthiacet-methyl in FMC’s Cadet, which actually came out in April and I talked about briefly in my mid-year 2008 review (see “Just Getting Better”). The other is thiencarbazone, which can be found in Bayer CropScience’s Corvus, a preemergence premix that also contains Balance plus a safener to provide two modes of action to fight glyphosate- and triazine-resistant weeds. Bob Hartzler notes that while both are from established families of herbicides, Corvus contains a new ALS (acetolactate synthase) inhibitor and Cadet is a new PPO (polyphenol oxidase) inhibitor.

But to be honest, it’s a new seed technology that these weed specialists are talking about: LibertyLink soybeans will be launched this year. Mark Loux notes that we already have a lot of good corn herbicides, but LibertyLink soybeans offer a new option for soybean growers, especially for those who have started to have real problems with glyphosate and Roundup Ready soybeans.

As Bill Johnson says, this technology is going to give your growers another tool for managing glyphosate-resistant weeds.

Dear Reid: Since you’ve brought up the topic, how do the new herbicides fit into a glyphosate resistance management program?

Every expert stresses that your growers need to use the herbicides, especially glyphosate, in a multi-faceted approach to avoid resistance.

For example, FMC’s Cadet tackles glyphosate-resistant biotypes, and Valent’s Valor is part of the preemergence herbicide trend, which can reduce the need for glyphosate later.

Aaron Hager says the heyday of using Roundup alone is over in many areas and many fields, especially soybean fields. He cites three reasons: glyphosate-resistant volunteer corn; glyphosate by itself simply not being as strong on some annual broadleaf species, such as morningglories, if application is not properly timed; and glyphosate-resistant weeds.

Chris Boerboom points to FMC’s Authority Assist as one of those preemergence herbicide options as a way to add another mode of action to soybean herbicide programs. By reducing the number of weeds subsequently sprayed with glyphosate, your growers and staff applicators reduce the risk of early season yield loss — and increase the flexibility in spray timing, a critical factor as many growers’ farms get larger.

Hartzler says most growers are looking for something to provide greater flexibility and increased consistency with their Roundup Ready program, and existing products do this very well. However, he adds, in areas of the country where a glyphosate-resistant weed has become a major problem (primarily the Southeast with Palmer’s amaranth), there is a bigger need for new chemicals.

Dear Reid: My growers are concerned about input costs. Any advice?

Boerboom says he promotes preemergence herbicides in both corn and soybeans. That’s because he feels a preemergence herbicide could replace one of the two postemergence glyphosate applications that are needed in many fields — and he says they would cost about the same price.

Certainly we all remember Monsanto’s announcement earlier this year that the cost of Roundup was increasing. Johnson says that could increase the use of other herbicides, just because the issue of disparity in cost is reduced.

Loux says he doesn’t really see any differences in performance between glyphosate products, so he tells growers to use whatever they want.

Can you give us some other pointers on some of the other new herbicides?

Sure. Hager points out that Ignite from Bayer CropScience is actually an old cotton formulation of glufosinate-ammonium that’s getting new life as a replacement for the company’s Liberty herbicide in corn and soybeans.

I read that Rotam North America’s new Primero for corn contains nicosulfuron; you’re probably familiar with that active ingredient from Accent. It can be used in all types of corn and is especially effective in controlling escaped grasses.

Loux says Balance Flexx (isoxaflutole + safener) is a “step forward” for Bayer because it contains a safener that prevents Balance from injuring corn. That allows it to be applied early postemergence to provide residual when mixed with other herbicides that control emerged weeds. At presstime, it was still awaiting EPA approval, but Bayer expects it very soon.

Dear Reid: Any other future products you can tell us about?

My Extension friends are really anticipating BASF’s Kixor, which is expected to be available in 2010. Some of them have already had the opportunity to test it. Kixor utilizes saflufenacil as its active ingredient and can be used alone or tank-mixed with glyphosate for fast burndown of weeds, including glyphosate- and ALS-resistant types, or as a preemergence treatment in corn. Hager says to expect the soil-applied PPO inhibitor to be pre-mixed with Outlook in corn and Pursuit in soybeans.

Another product I’m hearing a lot about is Bayer’s Capreno, which contains Laudis plus thiencarbazone plus a safener for postemergence broadleaf and grass control in corn. That might be available in 2010.

Bayer also has a preemergence premix containing thiencarbazone-methyl plus Balance plus a safener for corn that could be approved in 2009. The company also has a couple other new active ingredients, tembotrione and pyrasulfotole, that are scheduled for U.S. launch in the near future.
Boerboom says he heard DuPont Crop Science is bringing Steadfast Q and Accent Q to the market in 2009. Both are safened versions of existing products. He also heard that Syngenta may get its Flexstar GT, containing Flexstar and glyphosate, approved in 2009.

Leave a Reply

Herbicides Stories
HerbicidesScouting Key To Next Season’s Soybean Herbicide Program
August 12, 2014
When growing soybeans, growers need to think ahead to stay one step ahead of weeds. That means examining weed threats and evaluating which herbicides work best. Read More
Winter Wheat
HerbicidesArysta Touts Burndown Herbicide For Brome Management In Wheat
June 4, 2014
Arysta LifeScience North America recommends PRE-PARE Burndown Herbicide for effective brome management in winter wheat. Read More
HerbicidesFall Herbicide Applications More Effectively Manage Resistant Italian Ryegrass
May 14, 2014
Field studies show that a fall application of certain herbicides before weed emergence, leads to more successful crop planting and weed control in spring. Read More
Waterhemp in soybean stubble
HerbicidesThe Weed Resistance Problem: A Matter Of Billions
April 1, 2014
Not only is the amount of money being spent to control these yield robbers high, but the toll it has taken on the human population is growing lager by the day. Read More
Top 100 Articles
CropLife 100Pinnacle Agriculture Acquires Minnesota Retailer
April 14, 2015
Pinnacle Agriculture Holdings, LLC, ranked No. 6 on the CropLife 100,  has successfully acquired Liebl Ag, LLC in Ada, MN.  Read More
CropLife 100CHS, Aurora Cooperative Complete Fertilizer Storage, Grain Shuttle Loading Facility
April 13, 2015
CHS Inc., the nation’s leading cooperative and ranked No. 5 on the CropLife 100, and Aurora Cooperative (ranked No. 21) Read More
CropLife 100GROWMARK Acquires Missouri Refined Fuels Terminal
April 2, 2015
Bloomington, IL-based GROWMARK and Magellan Pipeline Co. have entered into an agreement in which GROWMARK will acquire the refined fuels Read More
CropLife 100Wilbur-Ellis Acquires South Dakota Retailer
April 2, 2015
Wilbur-Ellis Co.’s Agribusiness Division, a recognized leader in precision agriculture technology and the distribution and marketing of plant protection, seed Read More
CropLife 100The McGregor Co. Closes Smith-Kem Acquisition
April 2, 2015
The McGregor Co. — ranked No. 16 on the CropLife 100 list of largest U.S. ag retailers — has completed Read More
CropLife 100BRANDT Commemorates National Ag Day
March 20, 2015
The Illinois agriculture community gathered at BRANDT global headquarters on March 18 to celebrate National Ag Day behind this year's theme Sustaining Future Generations. Read More
Latest News
Crop InputsSyngenta Scientist Named 2015 National Inventors Hall O…
May 5, 2015
The National Inventors Hall of Fame (NIHF) announced its 2015 class of inductees. Among the 14 honored is scientist Mary-Dell Read More
Eric SfiligojIARC Glyphosate Report: A Closer Look At ‘Probabl…
May 5, 2015
By now, you’ve probably run across a story or two (probably closer to 100) detailing the ongoing controversy over the Read More
Syngenta
Eric SfiligojWill Monsanto And Syngenta Combine This Time?
May 4, 2015
Under the heading of “never say never,” it sounds as if crop protection/seed giants Monsanto Co. and Syngenta are once Read More
Dr. Bryan Young, Southern Illinois University, shows tour attendees a female Palmer amaranth plant.
Crop InputsPurdue Weed Scientist Publishes Weed Resistance White P…
May 4, 2015
Resistant weeds, the appropriate use of herbicides and integrated weed management strategies are highlighted topics in the new white paper, Read More
Industry NewsMonsanto-Syngenta Mega-Merger Would Drive More Deals
May 4, 2015
A combination of Monsanto Co. and Syngenta AG would set the stage for even more mergers and acquisitions, reports Brooke Read More
InsecticidesAgrian Announces New California Feature
May 4, 2015
Agrian announced today that it has developed a feature within its recommendation writing program that will support the California Department Read More
Storage Tanks at Nachurs
FertilizerNachurs Alpine Solutions: Liquid Fertilizer With Precis…
May 4, 2015
When it comes to fertilizer options in 2015 and beyond, ag retailers are taking a long, hard look at liquid. Read More
West Central Sac City growers
StewardshipIowa Lawsuit Challenges Ag’s Water Quality Efforts
May 3, 2015
Nutrient problems in west-central Iowa’s water supply made national headlines in March when the Des Moines Water Works (DMWW) filed Read More
Tim Hassinger Dow AgroSciences President and CEO
Crop InputsDow AgroSciences: Always About Agriculture
May 2, 2015
When you consider their respective backgrounds, it’s little wonder why Dow AgroSciences and new President/CEO Tim Hassinger ended up together. Read More
Nozzle spray close-up
AdjuvantsSpray Drift Enters More Complex Era
May 1, 2015
Off-target movement of crop protection products has been a problem for decades. The issue got more contentious when glyphosate-tolerant crops Read More
Crop InputsTop 10 Twitter Pics For #Plant15
April 30, 2015
Growers and ag retailers are working feverishly to plant this year’s crop. Fortunately, many of them still have time to Read More
ManagementIowa Retailer Sticks Up For Agriculture and New Spray D…
April 30, 2015
Paul Schrimpf and Eric Sfiligoj talk about how one Iowa ag retailer is working to defend agricultural practices and an Read More
Dow AgroSciences Logo wall
Seed/BiotechNew Soybean Trait Agreement To Use Dow AgroSciencesR…
April 30, 2015
Dow AgroSciences LLC, a wholly owned subsidiary of The Dow Chemical Co., Arcadia Biosciences, Inc. and Bioceres, S.A. have formed an agreement Read More
Confluence of St. Croix and Mississippi Rivers in Minnesota
StewardshipAgricultural Runoff Among Causes Of Water Quality Issue…
April 30, 2015
A new report released April 29 by the Minnesota Pollution Control Agency provides additional evidence that agricultural and urban runoff Read More
EquipmentTop 30 IRON WORKS Cartoons Of All Time
April 29, 2015
When CropLife IRON first started publishing more than a decade ago, long-time Publisher Al Strohmaier decided to start a cartoon Read More
StewardshipCPS-Hillsboro Becomes First ResponsibleAg Certified Fac…
April 29, 2015
Unlike a race where the first finisher takes home a medal or blue ribbon, safety and regulatory compliance doesn’t often Read More
HerbicidesWeed Scientists Offer New Definition For ‘Superwe…
April 28, 2015
The Weed Science Society of America (WSSA) has joined with six sister organizations to recommend a new definition for superweed Read More
Crop InputsValent Announces “Relentless As You’ Contes…
April 28, 2015
Valent U.S.A. Corporation today announced the winners of its national “Relentless As You” contest, which recognized the relentless spirit of Read More