Transgenics Challenge System

Attention growers: More transgenic corn may equal more challenges.

That’s certainly the message Ohio growers are getting from state Extension experts. According to USDA, more than 40 percent of Ohio’s corn acreage was planted to transgenic hybrids in 2007, up from 26 percent the previous year. Peter Thomison, an Ohio State University Extension agronomist, says that number is expected to increase this year, and could play a role in the dynamics of corn planting.

"How growers will be approaching the way they plant corn this year will be more important than ever, given the increasing acres of transgenic corn," says Thomison.

Thomison says that corn growers face the challenge of pollen contamination and planting refuges when dealing with transgenic hybrids such as Bt (Bacillus thuringiensis) corn and Roundup Ready corn.

Given the close proximity of non-transgenic fields to potential transgenic fields, Thomison says that growers might have a difficult time ensuring that their non-transgenic corn remains that way.

"Go out and talk to neighbors and find out when they are planting. Stagger planting dates and plant hybrids of various maturities," recommends Thomison. "Take steps now to make sure those non-transgenic fields are isolated."

Another challenge growers face is adhering to the concept of planting a 20 percent refuge within a transgenic field, specifically when using Bt corn hybrids. Thomison says that planting a refuge is extremely important, especially with more and more growers jumping from non-transgenic hybrids right to triple-stack hybrids.

Guidelines also exist when planting a hybrid with stacked traits that contain both Bt types.

"Growers have two management approaches. The first choice is to plant separate refuges for each target pest," says Ron Hammond, an OSU Extension entomologist. "We recommend the second choice — the common refuge approach where corn without any Bt technology is planted. In this case, a 20 percent refuge must be planted within or adjacent to the transgenic field."

Hammond says that growers should consult their seed dealers for information regarding properly managing for transgenic corn hybrids, or for any additional IRM (insect resistant management) requirements related to single and stacked-trait corn hybrids.

Finally, Thomison says that growers planting no-till and reduced-tillage continuous corn should take steps to prevent uneven stands.
 

Leave a Reply

Latest News
FertilizerGypsum Added To List Of Conservation Practices
July 28, 2016
Crop farmers in a growing number of states may be eligible for financial assistance from the USDA’s Natural Resources Conservation Read More
Management2016 CTIC Cover Crop Survey: 33% Report ROI From Cover …
July 28, 2016
Insight from 2,020 farmers from across the country reflected enthusiasm for cover crops and—for the fourth year in a row—found Read More
Palmer pigweed seedhead in cotton
HerbicidesStudy: Fall Weed Controls Can Make Significant Impact O…
July 28, 2016
An article published in the latest issue of the journal Weed Science shows that adopting harvest-time and post-harvest weed controls Read More
InsecticidesSyngenta: Beware Of Early Stinkbug Threat To Soybeans
July 28, 2016
With the record warm temperatures this past winter and confirmations from early entomologist reports, Syngenta encourages growers to monitor stinkbug Read More
Peanut field
Crop InputsVerdesian Introduces New Inoculant For Peanuts
July 28, 2016
As planning begins for the next growing season, Verdesian Life Sciences adds Primo Power CL, a new liquid inoculant, to Read More
Soil Young Corn
Crop InputsSmithsonian: 5 Things to Know About New GMO Labeling Bi…
July 27, 2016
On July 14, the House of Representatives passed a bill requiring large food companies to label products containing genetically modified Read More
Palmer pigweed in soybean stubble
HerbicidesSpecial Issue Of Weed Science Explores Human Aspects Of…
July 27, 2016
Weeds that evolve resistance to herbicides are a serious threat to global agricultural production. In this Special Issue of Weed Science, Read More
CHS Primeland
CropLife 100CHS Businesses In Washington, Idaho Combining For Great…
July 27, 2016
As full-service ag retailers, CHS Primeland and CHS Farmers Co-op collectively serve farmers and other customers in 15 counties in Read More
Storage Tanks at Nachurs
Crop InputsNACHURS Joins Field to Market
July 27, 2016
NACHURS announced today that it has joined Field to Market: The Alliance for Sustainable Agriculture, a leading multi-stakeholder initiative working Read More
Illinois Researchers
FertilizerMeasure Of Age In Soil Nitrogen Could Help Precision Ag…
July 26, 2016
What’s good for crops is not always good for the environment. Nitrogen, a key nutrient for plants, can cause problems Read More
Kochia
Crop InputsNufarm Launches New Herbicide for Resistant Kochia
July 25, 2016
Nufarm introduces Scorch herbicide for U.S. farmers and ranchers combating a broad range of troublesome broadleaf weeds. A unique premix Read More
ManagementNew Rabobank Report Calls for Farmer ROI Focus
July 25, 2016
As U.S. row crop farmers brace themselves for a third year of negative margins, Rabobank believes farmers must lower the Read More
Syngenta Sign
Crop InputsBloomberg: Syngenta-Chem China Deal on Track for Regula…
July 25, 2016
Syngenta AG, which has agreed to be taken over by China National Chemical Corp. for $43 billion, said talks with Read More
ManagementGROWMARK Meeting Visit, Company Takeover Updates, and R…
July 22, 2016
Editors Paul Schrimpf and Eric Sfiligoj discuss their recent speaking engagement at GROWMARK’s eastern event, crop protection company merger rumors, Read More
Crop InputsMonsanto: EU Approves Roundup Ready 2 Xtend Imports
July 22, 2016
Monsanto Co. announced today that the European Commission has granted import approval for Roundup Ready 2 Xtend soybeans. This milestone Read More
Syngenta headquarters in Basel, Switzerland
Crop InputsSyngenta Announces Alfalfa Seed Split Off
July 22, 2016
On September 1, 2016, Syngenta will transfer sales and distribution of alfalfa seed to the NEXGROW branded business that is Read More
Dow DuPont
Crop InputsDuPont, Dow Shareholders Approve Merger
July 21, 2016
DuPont and The Dow Chemical Company announced that, at their respective special meetings of stockholders held today, stockholders of both Read More
ManagementLand O’Lakes Announces SUSTAIN Business Unit, Oth…
July 20, 2016
Land O’Lakes, Inc. today announced the formal organization of a new business unit, SUSTAIN, and its leadership. SUSTAIN will focus Read More