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
Milan Kucerak, president/CEO, West Central
CropLife 100West Central Cooperative And Its New President Are A Match Made In Deviation
June 29, 2015
To appreciate just how unique West Central Cooperative is in the world of ag retail, an observer need only consider Read More
Winter Wheat
CropLife 100South Dakota Co-op Member Owners Vote No On Unification
June 26, 2015
The Boards of Directors for North Central Farmers Elevator (NCFE) and Wheat Growers (WG) have announced that member-owners have voted Read More
CropLife 100The Andersons Acquires South Dakota Plant Nutrient Manufacturer Kay-Flo
May 20, 2015
The Andersons, Inc., ranked No. 22 on the CropLife 100, has purchased Kay Flo Industries of North Sioux City, SD. “This Read More
CropLife 100North Central Farmers Elevator, Wheat Growers Unification Approved By Board, Still Awaits Member Approval
May 13, 2015
The Boards of Directors for North Central Farmers Elevator (NCFE) and Wheat Growers (WG) have voted to approve the Unification Read More
CropLife 100AgGateway’s Barcoding Initiative Progressing Nicely
May 8, 2015
According to legend (or Wikipedia), the first step towards modern bar codes came back in 1948, when Bernard Silver, a Read More
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
Latest News
The McGregor Co. fertilizer loadout
Retail FacilitiesThe McGregor Co. Partners With Kahler Automation To Cre…
June 30, 2015
Kahler Automation helped The McGregor Co. expand its Clarkston, WA, operation with unstaffed loadout technology that enables customers to pick Read More
Dry and Liquid Plant
Retail FacilitiesKahler Automation Helps CHS Dakota Ag Cooperative Build…
June 30, 2015
CHS Dakota Ag Cooperative in Mooreton, ND, wanted a liquid/dry blender system that could meet the needs of its customers Read More
Crop InputsLand O’Lakes, United Suppliers To Merge Crop Inpu…
June 29, 2015
Land O’Lakes, Inc. and United Suppliers, Inc. of Ames, IA, today announced their intent to merge their crop inputs businesses. Read More
FungicidesHelena To Distribute Unique Summit Agro Fungicide
June 29, 2015
RANMAN 400 SC fungicide, the only fungicide with a FRAC group 21 designation, is now part of the innovative Summit Read More
Eric SfiligojIARC Targets 2,4-D In Latest Report
June 29, 2015
The International Agency for Research on Cancer (IARC) has struck again. Earlier this year in March, this agency of the Read More
Milan Kucerak, president/CEO, West Central
CropLife 100West Central Cooperative And Its New President Are A Ma…
June 29, 2015
To appreciate just how unique West Central Cooperative is in the world of ag retail, an observer need only consider Read More
EquipmentCase IH Launches New Precision Air 5 Series Carts
June 29, 2015
Case IH recently introduced its new Precision Air 5 series air carts, developed to get the most from every plant’s Read More
InsecticidesVestaron Biopesticide Approved In California
June 29, 2015
Vestaron Corporation, a developer of insect control products derived from naturally occurring peptides, today announced that its VST-006330-EP biopesticide has received Read More
InsecticidesValent’s Zeal SC Miticide Receives EPA Approval
June 29, 2015
Valent U.S.A. Corporation announced today that Zeal SC Miticide has been registered by EPA with a new liquid formulation that Read More
Retail FacilitiesUnited Prairie Increased Plant Productivity With Junge …
June 29, 2015
Since 1979, Junge Control continues to provide ag retailers with highly accurate fluid and dry ingredient measuring, mixing and tracking Read More
Winter Wheat
CropLife 100South Dakota Co-op Member Owners Vote No On Unification
June 26, 2015
The Boards of Directors for North Central Farmers Elevator (NCFE) and Wheat Growers (WG) have announced that member-owners have voted Read More
ManagementAsmark Training Center Visit & A Merger No Go
June 25, 2015
CropLife Editor Eric Sfiligoj talks about a visit to the Ford B. West Training Center and the failure of the Read More
Crop InputsWinField: Here’s What We’re Seeing So Far T…
June 25, 2015
One of the most important things you can do throughout the season to help increase yield potential is to ensure Read More
Valent, Commodity Classic 2015
Industry NewsValent Garners FFA Honor
June 23, 2015
Valent U.S.A. Corporation today announced it has been named a 5-star member of the National FFA Foundation. This includes an Read More
Nester Ag intern Brad Nester
Crop InputsOhio NRCS’ New Conservation Practice Standard For Gypsu…
June 22, 2015
Ohio farmers wishing to use gypsum to improve soil quality now have access to technical information and possible financial assistance Read More
Industry NewsWest Central Creates New Executive Team
June 22, 2015
West Central Distribution, LLC officially announced the development of an executive team comprised of Dale Engan, chief executive officer; Michael Read More
MicronutrientsVerdesian Life Sciences Invests In People, Agricultural…
June 22, 2015
In mid-February, the USDA released its new 10-year agriculture projections. While the numbers are new, the theme was consistent. The Read More
Young corn plants
Crop InputsStudy: Crop Rotation Has Positive Impact On Soil Microb…
June 22, 2015
A study authored by Michigan State University (MSU) Department of Plant, Soil and Microbial Sciences assistant professor Lisa Tiemann is Read More