Sponsored By
Farm Progress

Oklahoma wheat farmers have weed control optionsOklahoma wheat farmers have weed control options

Wild oats, rescuegrass, jointed goatgrass and a few other pernicious weed pests pose challenges to Oklahoma wheat producers.  But growers have management options.

Ron Smith 1

May 20, 2014

2 Min Read
<p>Oklahoma State University Extension county educator.<br /> Gary Strickland discusses weed control options in wheat.</p>

Wild oats, rescuegrass, jointed goatgrass and a few other pernicious weed pests pose challenges to Oklahoma wheat producers.  But growers have management options, says an Oklahoma State University Extension county educator.

Gary Strickland, Jackson County, says several herbicides provide good to excellent control for some of Oklahoma wheat farmers’ worst weed problems.

Wild oats can be a tough one, Strickland said during a recent field day and dedication ceremony for the recently completed Tipton Valley Research and Education Center, near Tipton. “We have good products,” he said during the field tour.


Topping his list is Axial XL, a Syngenta product, which does an “outstanding job applied at the two- to three-tiller stage of wild oat growth.”

The herbicide also offers a broad spectrum of control, including broadleaf weeds in both moist and drought conditions.

PowerFlex, from Dow, also “does a good job with wild oats,” Strickland said, “but control falls off a little under drought stress. We see a little less uptake by the plant. But with a little moisture, it does an outstanding job and offers a good spectrum of broadleaf control, including marestail, and it will suppress rescuegrass.”

For the latest on southwest agriculture, please check out Southwest Farm Press Daily and receive the latest news right to your inbox.

Osprey, Bayer CropScience, also does a good job and offers a little ryegrass control but “is not strong on broadleaf weeds, and control will fall off during a drought.”

DuPont’s Finesse, he said, does offer good control during drought, “but it’s expensive.”

He said a new weed management approach combining preplant and pre-emergence treatments should improve results. “We want to deal with weeds as they start to come up,” Strickland said. “If we wait longer, weeds compete for moisture and nutrients.”

He said PrePare herbicide from Arysta LifeScience also offers good rescuegrass control and may be applied “with a light shot of Roundup, preplant or pre-emergence. “It seems to be a promising option,” he said. He recommends applying at the one-to three-leaf stage. “You have to get it then or it will escape and make a seedhead.”

Weakness in system

The weakness with this and other herbicides, he said, has been a four to four-and-half year drought. “We have not had good moisture support. We see a lot of promise but we want to see products when we have more moisture to determine if we get replication.”

Mark Gregory, Extension agronomist, said Clearfield wheat options also offer potential for improved weed control, especially for rescuegrass, jointed goatgrass and feral rye. “PowerFlex can help if we are timely, but we often miss it.”

With Clearfield varieties, producers can use Beyond herbicide, from BASF, “to take out rescue grass, jointed goatgrass and feral rye.”

He said Doublestop Cl Plus, with two resistant genes, allows growers to use Beyond herbicide, which is “hotter. Doublestop is a good variety and performs well on low pH soils.”



About the Author(s)

Ron Smith 1

Senior Content Director, Farm Press/Farm Progress

Ron Smith has spent more than 40 years covering Sunbelt agriculture. Ron began his career in agricultural journalism as an Experiment Station and Extension editor at Clemson University, where he earned a Masters Degree in English in 1975. He served as associate editor for Southeast Farm Press from 1978 through 1989. In 1990, Smith helped launch Southern Turf Management Magazine and served as editor. He also helped launch two other regional Turf and Landscape publications and launched and edited Florida Grove and Vegetable Management for the Farm Press Group. Within two years of launch, the turf magazines were well-respected, award-winning publications. Ron has received numerous awards for writing and photography in both agriculture and landscape journalism. He is past president of The Turf and Ornamental Communicators Association and was chosen as the first media representative to the University of Georgia College of Agriculture Advisory Board. He was named Communicator of the Year for the Metropolitan Atlanta Agricultural Communicators Association. More recently, he was awarded the Norman Borlaug Lifetime Achievement Award by the Texas Plant Protection Association. Smith also worked in public relations, specializing in media relations for agricultural companies. Ron lives with his wife Pat in Johnson City, Tenn. They have two grown children, Stacey and Nick, and three grandsons, Aaron, Hunter and Walker.

Subscribe to receive top agriculture news
Be informed daily with these free e-newsletters

You May Also Like