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In This Issue
Texas Turnaround
What Customers Want
TCGA: Want To Gin Smarter? Get An iPhone
Web Poll: Weed Control Confidence Growing
Trait Technology Approved
Cotton's Agenda
Research Continues On Root Rot Problem
Attractive Jobs Await Ag Grads
USDA Offers More Online Tools To Farmers
A Tug Of War At 90 Cents
Producers, Landowners Ready For CRP Signup
How Will Peanuts Fit Into Arkansas Crop Mix?
California Wants Immigration Solutions
Farm Bureau Families Donate Food For Needy
Georgia’s Coley Elected NCC Chairman
China, U.S. Sign Ag Agreement
Editor's Note
Industry Comments
Specialists Speaking
Industry News
Cotton Ginners Marketplace
My Turn: Going Home
TCGA SECTION
TCGA Schedule of Events
High Tech In Texas
Barry Street, President
Phil Hickman, Ginner of the Year
TCGA Scholarship Program Continues To Thrive
Dan Jackson, Incoming TCGA President
Q&A: Lee Tiller Stays Optimistic About The Future
Cotton Farming, TCGA – A Special Partnership
Overton Hotel Will Serve As TCGA’s Headquarters
TCGA Exhibitors & Booth Numbers
Exhibit Hall Map
Trust Completes Another Successful Year
TCGA Officers and Directors
Gin Courses Appeal To Bigger Audience
What To Do In Lubbock
Plains Cotton Growers
TCGA Staff
Tiller To Lead NCGA In 2012
ARCHIVES

Trait Technology Approved

By Carroll Smith
Senior Writer
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Seed companies are revolutionizing trait technology and continuing to bring new products to producers to help them address specific challenges that they encounter in the field.

Recently, Bayer CropScience re-ceived registration from the EPA for its TwinLink technology for cotton in the United States. According to the company, this technology combines dual trait (Cry1Ab and Cry2Ae) insect resistance to control lepidopteran pests (caterpillars) and tolerance to glufosinate herbicides such as Liberty, formerly known as Ignite.

“When we bring this product to the market, it will be stacked with GlyTol, Bayer’s glyphosate-tolerant technology,” says Paul Callaghan, global cotton traits manager, Bayer CropScience. “These varieties will contain the first fully tolerant dual herbicide trait package with both glufosinate and gly-phosate tolerance along with built-in insect resistance.”

Callaghan notes that Bayer will be looking at varieties from the Stoneville brand and the FiberMax brand in deciding which ones to bring forward in 2013.

Glufosinate/Glyphosate Flexibility

Dr. Scott Stewart, University of Tennessee IPM specialist and coordinator, who has had an opportunity to observe the TwinLink technology, says it will give producers the option of going over the top of their varieties with both glufosinate and glyphosate without killing the crop.

The Tennessee entomologist points out that this is a big issue, especially in areas where there is glyphosate-resistant pigweed.

“TwinLink allows farmers to apply Liberty without risking injury to the crop, and if they have grasses or some other weeds they want to control, farmers can also spray glyphosate since the varieties that will be offered are tolerant to both,” Stewart says. “In addition to providing flexibility, the TwinLink and GlyTol-stacked varieties will take away the worry about drift or accidentally spraying the wrong field with the wrong herbicide.”

From the insect-resistance perspective, Stewart says the two Bt traits in the TwinLink technology are very similar proteins with similar activity to the proteins in Bollgard II.

“All of the Bts provide great control of tobacco budworm,” he says. “And the Bt traits in TwinLink also are going to be similar to Bollgard II in terms of controlling bollworm, fall armyworm, beet armyworm and some of the other caterpillar pests.”

Variety Performance Is Key

New TwinLink Technology For Cotton

• Dual trait insect resistance – Cry1Ab and Cry2Ae – to control lepidopteran pests, including bollworm.
• Tolerance to glufosinate herbicides such as Liberty, which is used to control glyphosate-resistant pigweed.
• Will be offered stacked with GlyTol, Bayer’s glyphosate-tolerant technology, in 2013.
• Can be interspersed with Roundup Ready crops.

Arkansas ginner and cotton producer Larry McClendon says that he sees two main benefits in the TwinLink and GlyTol-stacked varieties that will be offered next year. One is the ability to control resistant pigweed and the other is that the varieties can be interspersed with Roundup Ready crops without having to worry about herbicide injury.

“The new technology makes practical sense for the producer out on the farm,” he says. “In the north Delta where we have such a terrible problem with pigweed, all of the farmers have perked up and are hoping that we will get some relief now.”

McClendon, along with other cotton producers east of Texas, will be participating in on-farm trials using the new TwinLink and GlyTol-stacked technology in 2012.

“Initially, Bayer is addressing the trait capacities – Liberty and glyphosate tolerance and the insect resistance,” McClendon says. “But we will also be looking at how the varieties are going to perform. That’s the key. The technology is there, so Bayer also needs to make sure that the varieties will yield well and have good quality going forward.”

Contact Carroll Smith at (901) 767-4020 or csmith@onegrower.com.

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