facebook_pixel

Pest Management Help on the Horizon

Looking for Light Web

From Cotton Grower Magazine – April 2016. Second in a series on influences providing optimism for cotton’s future.

 

As growers head to their fields this spring, they may have a certain sense of déjà vu. Despite well fought battles against pigweed and other weeds in 2015, the pests are still lurking and waiting in many fields. Same goes for insects, too.

Over the past few years, the list of products available to fight the fight has gotten shorter due to resistance and, increasingly, regulation and registration issues. It’s the stuff that keeps growers, consultants, entomologists and weed specialists up at night. But, there is some help coming.

New Herbicide Products and Technologies

Larry Steckel can recite the history of weed resistance quickly.

“We lost Treflan in the 1980s,” states Steckel, University of Tennessee Extension weed specialist. “We lost ALS inhibitors in the mid-1990s, and we lost full glyphosate control almost a decade ago. And now, we’re starting to lose PPO products.”

Yet, in spite of the limited choices available, cotton growers in many areas did an admirable job of managing Palmer pigweed in 2015. Growers do have glufosinate (Liberty) as a backstop, since it can be applied over the top on most newer cotton varieties. Yet, as Steckel points out, growers are going to start losing traction with the PPO products.

“We’ll need to start leaning on some of the other herbicides available, like Dual and Warrant,” he says. “Cotoran and Caporal are also still in play.”

Two additional tools for resistant weed control – dicamba products for use with Monsanto’s Bollgard II XtendFlex system, as well as Dow AgroScience’s Enlist Duo (2,4-D Colex-D technology) – are still undergoing regulatory scrutiny. Steckel is hopeful to see clearances on those products this year.

A new recently-registered addition to the pigweed fight is Brake herbicide (fluridone), which will be available in two premix formulations – Brake F16 (fluridone and fomesafen) for the Southeast and Brake FX (fluridone and fluometuron) for the Mid-South and Southwest.

“Brake is a bleaching herbicide that turns pigweed white after they come up,” explains Steckel. “It’s absorbed through the roots, and cotton tolerance is very good. It would also be a very good fit for conventional cotton. It will provide decent, long residual where growers don’t have Liberty available.”

Next Generation of Bt Technologies

Cotton growers rapidly adopted Bt technology after its introduction in 1996. Today, over 95% of all cotton planted in the U.S. contains one of the available technologies.

“Our Bt cottons perform remarkably well,” says Scott Stewart, University of Tennessee Extension entomologist. “Technologies like WideStrike3, Bollgard II and TwinLink provide a lot of protection and are what we have to work with this year.”

Soon, however, the next generations of these traits will be coming to market. And, notes Stewart, that means improved control of bollworm, fall armyworms and other worm pests.

“For example, WideStrike3 is a big step up from the original WideStrike,” he says. “Statistically, we’ve also seen increased plant protection in our 2015 tests for TwinLink Plus and Bollgard III.”

Neither TwinLink Plus nor Bollgard III will be commercially available in 2016, but are on the horizon for upcoming seasons. WideStrike3 is available in certain PhytoGen varieties. Yet in spite of increased efficacy, Stewart reminds growers that none of the technologies are bulletproof, especially under high worm pressure. Two years of field testing still shows significant yield increases from additional insecticide treatments.

“I still feel comfortable using pyrethroids tankmixed with products like orthene to help manage bollworm with our Bt technologies, because we’re also going to be making those applications for plant bugs” says Stewart.

 

Topics: , ,

Leave a Reply

Crop Inputs Stories
PrecisionAg Vision Conference October 10-12, 2017 Phoenix AZ
Precision Technology

See How Technology Will Revolutionize Global Ag Production

September 20, 2017

The final agenda for the PrecisionAg® Vision Conference delivers high-impact keynotes, a track for specialty crops, and an Arizona field tour.

Precision Technology

Cotton Picking Robots?

August 25, 2017

Can an army of small robots change the way cotton is harvested? Dr. Ed Barnes thinks it’s not only possible, but highly probable.

Weed Control

Dicamba’s Defenders

August 22, 2017

Amid a chorus of complaints, many cotton producers express worry over losing an invaluable tool for weed control.

Precision Technology

AMVAC Grants Trimble Global Distribution Rights for SIMPAS

August 22, 2017

AMVAC and Trimble are finalizing an agreement granting Trimble global distribution rights for AMVAC’s patented SIMPAS prescriptive application equipment.

Precision Technology

Precision Ag Southern Style

August 22, 2017

A customer-first focus helps Agri-AFC’s Amy Winstead keep the company's precision programs coordinated, on target…and growing.

Soybeans

Arkansas Researchers Share Dicamba Volatility Studies

August 11, 2017

Work done by University of Arkansas weed scientists has found that every dicamba formulation tested this spring and summer demonstrated a level of volatility.

Insect Control

Looking Ahead to Cutout and Terminating Insect Treatments

August 4, 2017

Although growers are still treating cotton insects, it’s appropriate to look ahead at proper timing for terminating those treatments.

Around The Gin
Product News

Americot Adds Three to Regional Sales Force

September 20, 2017

Americot, Inc. has added three new regional representatives to the company’s sales force.

Product News

Enlist One Herbicide Added to Enlist System

September 13, 2017

Dow AgroSciences adds a straight-goods 2,4-D choline herbicide for additional tank-mix flexibility in Enlist crops.

Product News

Elevore Herbicide Registered for Burndown Use

August 30, 2017

Dow AgroSciences’ Elevore herbicide has received federal registration for use in fall and spring burndown programs for cotton, soybeans and corn.

Product News

Stoneville Legacy Club Honors Charter Members

August 24, 2017

The new Stoneville Legacy Club honored 129 growers who recorded average yields of 1,794 lbs/A or higher on at least 20 acres with Stoneville cotton varieties.

Product News

Improved Bollworm Management Expected in 2018

August 23, 2017

Southeast Texas cotton farmers should have new tools available in 2018 to better manage bollworms and other potentially damaging pests.

Product News

Maximizer Club Honors Top FiberMax Dryland Growers

August 17, 2017

The FiberMax Maximizer Club honored 121 growers who yielded at least 1,000 lb/A on dryland acres with FiberMax varieties in 2016.

Product News

Monsanto, Valent Expand Roundup Ready PLUS Partnership

August 7, 2017

Monsanto and Valent U.S.A. are expanding their crop protection partnership for the 2018 Roundup Ready PLUS Crop Management Solutions platform.

Product News

New Broadleaf Burndown Option Coming from Dow AgroSciences

July 31, 2017

A new burndown option for tough broadleaf weeds has shown excellent promise in trials across the Mid-South and Midwest.

Latest News
Precision Technology

See How Technology Will Revolutionize Global Ag Production

September 20, 2017

The final agenda for the PrecisionAg® Vision Conference delivers high-impact keynotes, a track for specialty crops, and an Arizona field tour.

Precision Technology

Deere to Acquire Blue River Technology

September 7, 2017

Deere has signed an agreement to acquire Blue River Technology, a leader in applying machine learning to agriculture, for $305 million.

Weed Control

Farmers Impressed with Enlist Duo Performance

August 30, 2017

Growers who have used Enlist Duo herbicide this summer have reported not only exceptional control of their toughest weeds, but are also impressed with how it stays on target.

Precision Technology

Cotton Picking Robots?

August 25, 2017

Can an army of small robots change the way cotton is harvested? Dr. Ed Barnes thinks it’s not only possible, but highly probable.

Weed Control

Dicamba’s Defenders

August 22, 2017

Amid a chorus of complaints, many cotton producers express worry over losing an invaluable tool for weed control.

Precision Technology

AMVAC Grants Trimble Global Distribution Rights for SIMPAS

August 22, 2017

AMVAC and Trimble are finalizing an agreement granting Trimble global distribution rights for AMVAC’s patented SIMPAS prescriptive application equipment.

Precision Technology

Precision Ag Southern Style

August 22, 2017

A customer-first focus helps Agri-AFC’s Amy Winstead keep the company's precision programs coordinated, on target…and growing.

Soybeans

Arkansas Researchers Share Dicamba Volatility Studies

August 11, 2017

Work done by University of Arkansas weed scientists has found that every dicamba formulation tested this spring and summer demonstrated a level of volatility.

Insect Control

Looking Ahead to Cutout and Terminating Insect Treatments

August 4, 2017

Although growers are still treating cotton insects, it’s appropriate to look ahead at proper timing for terminating those treatments.

Insect Control

Early Whitefly Detection Key to Successful Control

July 26, 2017

Whitefly populations are unusually high in Georgia cotton fields this season, making early detection and management essential.

Insect Control

How Aggressive Should Bollworm Treatments Be?

July 18, 2017

Mississippi State entomologists offer bollworm treatment suggestions based on what has been seen in fields to date and the Bt technologies used.

Insect Control

Bollworms Attack Some Texas Cotton, Sorghum

July 14, 2017

Bollworm damage to cotton and grain sorghum is ramping up across parts of Texas.

Weed Control

Post-Direct or Hooded Options for Layby Weed Control

July 6, 2017

Tennessee’s Larry Steckel offers recommendations for post-direct or hooded herbicide applications at layby.

Crop Inputs

Measuring Variety Responsiveness to PGRs

June 29, 2017

Limited information is available on how some new cotton varieties will respond to PGR applications.

Crop Inputs

Determine Proper Timing for PGR Applications

June 27, 2017

Accelerated growth of cotton at squaring means it’s time to set strategies for PGR applications.