Herbicide Systems Define Weed Control For 2012

From waterhemp, to worries, to workable solutions, multiple modes of action are key to weed control and gaining that extra bushel per acre in the coming growing season. Historic commodity prices and sizzling land values should make additional input investments profitable. Experts across the country weigh in with developing insight on weed resistance management, new products and crop strategies.

Lessons learned from 2011 will help you make the best recommendations to your growers. New products, practices, perspectives and crop protection management are among the issues that help you build profit margins and maximize grower yields. Sit back and read on to see what key industry players are thinking.

University Findings, Perspectives

“For the Midwest, our biggest problem is growing weed resistance to herbicides such as glyphosate. We’re seeing more waterhemp resistance regardless of what we try to do,” says Dr. Kevin Bradley, associate professor, Division of Plant Sciences, University of Missouri. “In the Bootheel and southern portions of the Midwest, we’re seeing much more Palmer pigweed with resistance as well.

“Our biggest driver is waterhemp, and it’s affecting yields. Although waterhemp is not as competitive as Palmer pigweed, giant ragweed and many others, waterhemp exists in almost all of our fields in Missouri at harvest. Combines do a perfect job spreading resistant seeds around for next year in these fields,” explains Bradley.

“We’ve also seen resistant Palmer pigweed in the river bottoms around Jefferson City in Central Missouri and in river bottoms north of Kansas City,” reports Bradley.

“This year we saw more adoption of pre-emergence residual herbicides than ever before, but we still have more problems,” he says. As we move forward, I suggest these new considerations: First, it’s a given we need to apply a pre-emergence herbicide, but we don’t have to apply a foundation rate of that herbicide. In fields where you know you have resistant weeds present, consider full label rates of a pre-emergence residual herbicide to get as long of control as possible.”

Another suggestion Bradley makes is to apply a residual herbicide with your postemergence treatment. “I’ve called this ‘overlapping residuals,’” he says. “It may not be for every acre, but particularly in fields with resistant waterhemp or Palmer pigweed. Either of these species can come up in July and August, and continue emerging with rain occurrences.” Presentations on this topic may be found at Website www.weedsciencemissouri.edu.

Dr. Bryan Young, professor, Dept. of Plant, Soil and Agricultural Systems, Southern Illinois University, recently addressed some key questions for planning 2012 herbicide systems.

“We used to talk about preventing weed resistance, but glyphosate resistance is here. The time to take action is now,” says Young. “Glyphosate remains an important tool, but the bulk of our efforts should rely on integration of several herbicides and modes of action. The complexity of weed management has risen dramatically because knowing what other herbicides are needed. Applying them in a timely fashion presents a significant challenge.”

Young recommends this thought process as growers make herbicide decisions:

  • Examine your weed spectrum (including resistant weeds).
  • Look at the components in your herbicide program and ask yourself: Do they control the weeds I’m targeting? Do they create a diverse program with multiple modes of action? Do they provide residual activity for season-long control?

Young adds that growers should take a systems approach to weed management and develop the mindset of managing weeds 12 months a year.

“The most prudent investment for weed management is the beginning of the growing season to start with weed-free fields and provide the residual herbicides necessary to enable an effective post application. Holding off on investing more on postemergence options can be risky,” says Young.

Viewpoints, Offerings

“Parallel Plus herbicide for corn is new in 2012 it has a super, new formulation that combines metachlor and atrazine, which is a mainstay product. Due to mixtures, you need to be less concerned in corn than in soybeans,” says David Feist, development project manager, MANA Crop Protection. “Because the herbicide’s two modes of action within the product, the chemistry works particularly well for waterhemp species. However, vigilance is prudent, and resistance management practices such as changing modes of action, tillage and additional products in burndown or postemergence which allow three passes or four control passes will manage proactively and control susceptible and potentially resistant weeds, not just resistant ones.”

In 2012, MANA offers its Protected Acre Program which is a comprehensive pro-active approach to a season-long crop protection program to strengthen use of input dollars with the inclusion of off-patent herbicides, insecticides and fungicides. “Traditionally, growers budget how much they can spend on crop protection. With the Protected Acre Program, growers take their current budgeted dollars and exceed their former standard level of protection during every stage of the crop’s lifecycle. By adopting off-patent product alternatives, growers can stretch their input dollars to do more with the same amount,” explains Feist.

Pending EPA registration, Valent is launching Fierce herbicide for 2012 which contains a premix of fluminoxazin and pyroxasulfone,” which adds an additional mode of action for managing weed resistance and controlling weeds such as pigweed, waterhemp and common ragweed.

“With the trouble growers faced trying to manage weeds in past years and still trying to stay profitable, retailers and university experts are recommending a powerful, long pre-emergence residual herbicide with two modes of action,” says John Pawlak, product development manager for Valent. “No matter what type of weed pressures a grower is facing, the most important thing is to have a solid weed strategy program that includes different modes of action and using residuals such as Valor or Fierce and postemergence products such as Cobra or Select Max.”

Jeff Springsteen, Bayer CropSci­ence corn and soybean selective herbicide manager, notes HPPD’s were the last mode of action to be discovered and brought to the market. “The only new products coming to the market in the next few years are premixes of older chemistries or additional products from existing mode-of-action families. We have to get smart and preserve the chemistry we have today,” he says.

Arlene Cotie, Bayer CropScience product manager, says they will recommend the Respect the Rotation program again in 2012, which encourages rotation of crops, herbicide modes of action and herbicide-tolerant traits. The LibertyLink trait with Ignite herbicide offer the most reliable solution for weed management by enabling rotation of selective and non-selective herbicides. “Also, pre-emergence residual herbicides are a must,” says Cotie.

“In corn, a product such as Corvus, a one-pass, pre-emergence herbicide, helps hold back weeds and helps reduce the pressure of coming back over the field should weather delay progress in the field. Capreno one-pass post herbicide can control weed escapes or late-germinating weeds through canopy,” Springsteen adds.

At Monsanto, Dr. Rick Cole, weed management implementation manager, says the Roundup Ready Plus incentives program is a tool to provide a broad range of choices and incentives. “Start early and use multiple modes of action,” he says. “We offer incentives to use residuals such as Impact from AMVAC, Cobra from Valent and additional products from other manufacturers such FMC, MANA and Syngenta.”

Cole adds that retailers should advise their customers to choose the best seed for their situation.

Dow AgroSciences is working ahead on the new Enlist Weed Control System, which will provide growers control of tough and glyphosate-resistant weeds in corn, soybeans and cotton. It will include new Enlist Duo herbicide offered as a post product for over the top of Enlist crops. The new Enlist Weed Control System is poised for a 2013 introduction in corn.

Damon Palmer, U.S. commercial leader, explains Enlist Duo will feature glyphosate and a new 2,4-D product. The herbicide features Colex-D Technology processes that will reduce the product’s low volatility and potential to drift.

For 2012, DuPont Crop Protection offers Delta and Southern growers new LeadOff herbicide for preplant use in corn, soybeans and cotton. “The product gives these growers the ability to control weeds early, react to changing weather conditions and take advantage of last-minute market opportunities to make their final planting decisions,” says Jeff Carpenter, DuPont corn herbicide portfolio manager.  

Again for 2012, the company offers Prequel herbicide for use in corn, preplant through pre-emergence for burndown and residual control. Other corn products include Realm Q applied post for broadleaf weed control, and new Basis Blend for fall or spring burndown in field corn. For soybeans, DuPont has Envive herbicide for foundation control of broadleaves. Residual product use has grown significantly, both pre and post in corn and soybeans. These products are “flying off the shelves,” says Carpenter.

Bryan Perry, BASF Kixor and Zidua marketing manager, reports that the company has two new herbicide innovations for 2012 — Zidua and OpTill Pro.

Zidua provides residual control of small-seed broadleaf weeds and grasses, including glyphosate-resistant Palmer amaranth and waterhemp. In­­i­tially, Zidua is anticipated to be labeled for use in corn and soybeans. Future label expansions may include uses in wheat, cotton, sunflowers, peanuts and to other crops as well.

“Growers want new solutions and new products spark interest. Zidua reduces risk through flexibility, two modes of action and works well on ‘emotional’ weeds,” says Perry.

“Our other new offering is OpTill Pro. The ‘Pro’ in this new BASF soybean herbicide stands for ‘premium residual option’,” Perry explains. “It’s powered by Kixor herbicide technology and contains the soybean herbicide’s three sites of action for an enhanced burndown with premium residual control of difficult weeds, including glyphosate-resistant waterhemp. “We also offer Verdict, launched last year for corn and soybeans, and Headline for corn application at V5/tassle. So it’s a systems approach,” he says.

Perry adds that it’s important to remember that a herbicide system is only one leg of the stool in crop protection management, which needs to be treated holistically.

At Syngenta, new cereal products are being launched, reports John Foresman, herbicide asset lead. “Axial Star controls both annual grass and broadleaf weeds in spring wheat (excluding durum), winter wheat and barley. Axial Star combines the industry-leading grass control of pinoxaden with fluroxypyr, the leader in kochia control,” he says. “Sierra herbicide is another cross-spectrum product and provides wheat growers with an additional resistance management tool to combat ACCase-resistant wild oat and green foxtail.

“With commodity prices strong, growers want to incorporate more efficiencies into their operations by using flexible products, additives and tank-mix options,” Foresman explains. “Cross-spectrum products like Axial Star and Sierra help by enabling growers to manage their grass and broadleaf weeds in one pass.”

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
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

Trending Articles

EquipmentAdvance Your Technology IQ At MAGIE
August 13, 2014
The Midwest AG Industries Exposition (August 20-21) is the place you need to be to see, study and evaluate how new advances in the equipment, operations, crop protection and fertility sectors can help your business prosper. Read More
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
StewardshipMichigan Agriculture Leaders On Toledo Water Ban: We Want To Be Part Of The Conversation
August 8, 2014
Leaders of Michigan agricultural organizations said Thursday that the government should not have a “knee-jerk reaction” based on last weekend’s water ban in Toledo due to fertilizer run-off in Lake Erie. Read More
CropLife 100BRANDT Acquires Lemon Ag Services
August 4, 2014
The acquisition of Lemon Ag fits BRANDT’s aggressive corporate strategy of providing superior agronomic advice and services for customers in central Illinois. Read More
Eric SfiligojThe Resurgence Of Crop Protection
August 4, 2014
Plenty of new offerings over the next few years should see a rebirth for the crop protection products category in terms of market share. Read More
LegislationUSDA Implements Key Farm Bill Crop Insurance Provision
July 30, 2014
The new Supplemental Coverage Option, available through the federal crop insurance program and set to begin with the 2015 crop year, is designed to help protect producers from yield and market volatility. Read More

Latest News

SprayersUniversity Of Illinois Introduces New Spray App
August 18, 2014
University of Illinois Extension has released a new smartphone app for making sprayer-related calculations. Pesticide Spray Calculator, or Spray Calc, Read More
Crop InputsSyngenta Names New Manager Of Federal Government Relati…
August 18, 2014
Laura Wood Peterson has joined Syngenta as manager of federal government relations, based in Washington, DC. Read More
ManagementExpert To Discuss Farmland Value, Rent At Farm Science …
August 18, 2014
While cropland values in Ohio increased in the past two years, they have remained flat in 2014, declining in some cases, according to an Ohio State University agricultural economist. Read More
EquipmentDeere Announces Factory Layoffs
August 18, 2014
Deere & Co. has announced it will reduce the size of its manufacturing workforce at some agricultural equipment factories in response to current market demand for its products. Read More
HerbicidesNew DuPont Afforia Herbicide Gives Crops A Clean Start
August 18, 2014
DuPont Afforia is a preplant herbicide for soybeans and other field crops that provides excellent burndown and residual control of many challenging weeds, such as marestail and waterhemp. Read More
Equipment21 Products Showcased At MAGIE 2014
August 18, 2014
The annual Midwest AG Industries Exposition is upon us. Here is CropLife IRON's look at some of the products visitors can expect to see at this week's event. Read More
EquipmentAGCO Seeks Nominations For 2014 Operator Of The Year
August 15, 2014
Ag retailers throughout the U.S. and Canada are encouraged to nominate their best applicators. Read More
EquipmentAdvance Your Technology IQ At MAGIE
August 13, 2014
The Midwest AG Industries Exposition (August 20-21) is the place you need to be to see, study and evaluate how new advances in the equipment, operations, crop protection and fertility sectors can help your business prosper. Read More
ManagementCropLife’s Buyers’ Guide Issue Now Availabl…
August 13, 2014
One of our most read issues of the year — the August Buyers' Guide — is ready to download on the iPad. This popular issue features equipment for "In The Field," "At The Plant" and "In The Office." Read More
WebinarsWebinars On Demand
August 13, 2014
Register for one of our upcoming Webinars or access our archive of past Webinars to view recordings of presentations that may be of interest to you. Read More
HerbicidesBASF: Fall Burndown Benefits Go Beyond Weed Control
August 12, 2014
While unpredictable weather may delay application timing of spring herbicides, more growers are adding a burndown application in the fall Read More
HerbicidesScouting Key To Next Season’s Soybean Herbicide P…
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
StewardshipNitrogen Efficiency Supports Environmental Stewardship
August 12, 2014
As growers prepare for another harvest, it’s important to consider how nitrogen stabilization not only supports healthy plant growth but also fosters environmental stewardship. Read More
Seed/BiotechMycogen Seeds Introduces 19 New Corn Hybrids For 2015
August 12, 2014
Many of the new hybrids feature Mycogen's SmartStax Refuge Advanced technology for maximum protection of the genetic potential and planting convenience. Read More
HerbicidesDow AgroSciences Introduces Enlist Ahead App For Enlist…
August 12, 2014
Designed for use with the Enlist Weed Control System, the app is a precision agriculture tool for maximizing weed control performance, managing weed resistance and making responsible applications of Enlist Duo herbicide with Colex-D Technology. Read More
CropLife 100CHS Announces Senior Leadership Team Changes
August 12, 2014
Current CHS strategic leadership team member Shirley Cunningham will assume a new role as executive vice president and chief operating officer, Ag Business and Enterprise Strategy. Read More
ManagementFormulation Chemist Enhances Capabilities For AgriThori…
August 11, 2014
AgriThority has added accomplished formulation chemist Roy Chen to its team of associates supporting new and emerging biotechnologies and conventional chemistries. Read More
Crop InputsPurdue Creating Center To Support Soybean ‘Value …
August 8, 2014
Purdue University is establishing a center that will combine the broad-based expertise of dozens of faculty and staff members coordinating research, Extension and education to advance the production and use of soybeans. Read More