Brake Herbicides In the News

Alan York, Ph.D., on Brake's Unique Mode of Action

North Carolina Cotton: New Herbicide Options


And check out Alan's article, North Carolina Cotton: New Herbicide Options for 2016, where he discusses the use of Brake F16 in Palmer Amaranth control.

Pest Management Help on the Horizon

From Cotton Grower Magazine, By Jim Steadman – 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 tank-mixed 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.

Palmer Pigweed Officially Named “Most Troublesome Weed” In U.S.

April 5, 2016 – It’s now official. A survey conducted by the Weed Science Society of America (WSSA) has ranked Palmer amaranth, also known as Palmer pigweed, as the most troublesome weed in the U.S.

“We certainly weren’t surprised to find Palmer amaranth at the top of the U.S. list,” says Lee Van Wychen, Ph.D., science policy director for WSSA. “This weed can have a devastating impact on crop yields. Its stems are tough enough to damage rugged farm equipment, and it is extremely prolific. A single Palmer amaranth plant can produce as many as a million seeds during a growing season.”

Hundreds of weed scientists, extension agents and practitioners across 49 U.S. states, Puerto Rico and eight Canadian provinces participated in the 2015 WSSA survey. They provided input on both the most common weeds (those most frequently seen) and the most troublesome weeds (those most difficult to control) in 26 different cropping systems and natural areas. The lists below are based on an aggregation of their responses, which mentioned more than 650 weeds at least once.

Most Troublesome Weeds, U.S.
1. Palmer amaranth

2. Morningglory (ivyleaf, pitted, tall, sharppod)

3. Common lambsquarters

4. Waterhemp (common, tall)

5. Horseweed (marestail)

Most Common Weeds, U.S.
1. Foxtail (giant, green, yellow)

2. Common lambsquarters

3. Crabgrass (large, smooth)

4. Palmer amaranth

5. Morningglory (ivyleaf, pitted, tall, sharppod)

The Weed Science Society of America, a nonprofit scientific society, was founded in 1956 to encourage and promote the development of knowledge concerning weeds and their impact on the environment. The Society promotes research, education and extension outreach activities related to weeds, provides science-based information to the public and policy makers, fosters awareness of weeds and their impact on managed and natural ecosystems, and promotes cooperation among weed science organizations across the nation and around the world. For more information, visit

SePRO Stacks Sales Team with Agrichemical Veteran in the Mid-south

February 25, 2016 – SePRO Corporation announced today the addition of Larry Moss to their team of Technical Specialists.  Mr. Moss will lead the Mid-south Territory covering the states of Arkansas, Alabama, Mississippi, the Missouri bootheel, and western Tennessee.  With the recent registration of Brake® Herbicide, Larry will prove instrumental in supporting cotton farmers working with this versatile pre-emergent herbicide in the fight against resistant weeds.

“We are excited to have someone with Larry’s experience and passion for the Ag-chemical industry as part of the SePRO team of Technical Specialists,” said Mike Jackson, Regional Sales Manager.  “There is tremendous interest by cotton farmers to try Brake this year, and Larry will be working with them as they experience the value and benefit of this new class of chemistry for proactive resistance management”.

A sales veteran of over 37 years in the industry, Larry’s sales career spans time with Elanco, DowElanco, Dow AgroSciences and BASF.  His extensive knowledge of the cotton market should be an invaluable resource to SePRO customers in the agricultural market.  Larry resides in Collierville, TN where he enjoys time with his grandchildren and the occasional round of golf.

Great News for Cotton Farmers - A New MOA to Stop Pigweed

February 12, 2016 – Cotton farmers will now have a new preemergence herbicide and class of chemistry in the fight against resistant weeds.  On February 11th US EPA registered Brake® Herbicides for cotton.  Brake offers exceptional cotton tolerance with extended residual weed control allowing farmers to get their cotton off to a great start and maximize yield potential.

It is estimated over 9 million acres of cotton will be planted in 2016.  Many of those acres have experienced challenges with resistant weeds like Palmer amaranth (Palmer pigweed).  This is a significant threat to production when just one pigweed plant in 60 feet of cotton row has been shown to reduce yield by up to 30%.  This challenge facing growers was the stimulus for USDA seeking SePRO’s interest in developing Brake for cotton, as it represented a much needed new mode of action.  Brake has been developed over the last 4 years in conjunction with the National Cotton Council, Cotton Incorporated, over 25 university researchers, industry experts and growers.

Brake comes at a perfect time, when growers are looking for additional tools to strengthen resistant weed management programs.  It offers a strong residual herbicide that provides the foundation for comprehensive weed control programs, regardless of traits.  Brake provides very good control of herbicide-resistant Palmer amaranth, along with many other broad leaf weeds and grasses.  This versatile herbicide excels under wet conditions providing assurance when it is too wet to get back in the fields for timely postemergence herbicide applications.   

“Having the opportunity to develop Brake alongside the grower community has been invaluable for this new class of chemistry for cotton,” said Bill Culpepper, CEO SePRO Corporation.

From, April 15, 2015. Click to view.

April 15, 2015. Click to view.




Tom Barber of the University of Arkansas answers questions on Brake application rates and timing for 2015 while offering insight on maximizing both safety to cotton and residual protection from Palmer pigweed.

From Cotton Farming Magazine, January 2014. Click to view.

From Cotton Farming Magazine,
January 2014. Click to view.

From Cotton Farming Magazine, November 2014. Click to view.

From Cotton Farming Magazine,
November 2014. Click to view.