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
HerbicidesBREAKING: EPA Pulls Registration On Dow’s Enlist …
November 25, 2015
EPA on Wednesday withdrew approval of a controversial new weed killer to be used on genetically modified corn and soybeans, Read More
FertilizerYara Tampa Ammonia Terminal Garners ResponsibleAg Honor…
November 25, 2015
Yara has received its first ResponsibleAg Certification for its Tampa, FL, Ammonia terminal location. This achievement demonstrates Yara’s commitment to Read More
ManagementReviewing The Top Ag Stories For 2015
November 24, 2015
Editors Eric Sfiligoj and Paul Schrimpf discuss the most noteworthy events from this past year in agriculture. Read More
EmployeesAgriculture Jobs May Be Plentiful, But New Grads Are Sc…
November 24, 2015
Close to 60,000 jobs are set to open up in agriculture each year for the next five years, but there's not enough grads to fill them. Read More
Radish cover crop
StewardshipCover Crops Guide Helps Growers Improve Water Quality
November 23, 2015
A publication that teaches growers the advantages of using cover crops to improve soil health and crop yields has won Read More
Crop InputsThe Andersons’ Products Receive California Organi…
November 23, 2015
The Plant Nutrient Group of The Andersons, Inc. announced today that its Humic DG and Black Gypsum DG products are Read More
Eric SfiligojNew European Study Seems To Support Glyphosate Safety
November 23, 2015
Looking at any international news over the past few years, it might seem as if the European Union (EU) is Read More
Toggle Biostimulant corn roots
Crop InputsTwo New Biostimulants Added To United Suppliers’ …
November 20, 2015
Winfield US announces the launch of two new products in the United Suppliers portfolio for the 2016 crop season, Optify Read More
StewardshipNRDC Report: Cover Crops Contain Vast Benefits
November 19, 2015
As harvest season ends and farmers in the United States ready themselves for winter, one small change could make a Read More
Fall Harvest
Seed/BiotechArysta Launches New Seed Protectant
November 19, 2015
As spring wheat growers begin planning for a strong start to their season, Arysta LifeScience North America announces RANCONA V Read More
Crop InputsInocucor Receives U.S. Patent For Microbials
November 19, 2015
Inocucor Technologies Inc., the Montreal-based agriculture biotech company, was issued patent No. 9,175,258 by the U.S. Patent and Trademark Office to protect Read More
ManagementSyngenta Rumors and ARA 2015 Preview
November 19, 2015
CropLife Editor Eric Sfiligoj looks at the latest rumors involving Syngenta selling its crop protection business and talks about events Read More
EquipmentAGCO Announces Finalists For Operator Of The Year Honor
November 19, 2015
AGCO Corp. has announced the four top operators chosen as finalists for AGCO’s 10th Annual Operator of the Year program, Read More
High Plains Aquifer
StewardshipStudy: High Plains Aquifer Overall Usage In Decline
November 18, 2015
A new Kansas State University study finds that the over-tapping of the High Plains Aquifer’s groundwater beyond the aquifer’s recharge Read More
Golden Harvest Corn healthy leaves
FungicidesArysta Launches New Corn And Soybean Fungicide
November 17, 2015
Arysta LifeScience North America has recently launched ZOLERA FX Fungicide. The highly systemic, powerful fungicide delivers broad-spectrum disease control with Read More
Young corn plants in soil
Crop InputsBioAg Alliance: Microbials Targeted For 250-500 million…
November 17, 2015
Monsanto and Novozymes have announced a new 2025 acreage target that will guide the companies’ microbials business for the next Read More
Syngenta Sign
Crop InputsSyngenta Still Being Eyed For China Takeover
November 16, 2015
China National Chemical Corp. approached sovereign wealth funds including China Investment Corp. to help pay for a potential acquisition of Read More
Cedar Country Cooperative
Eric SfiligojCooperative Consolidation Continues
November 16, 2015
As I put this enewsletter column together, we’ve just put the finishing touches on our magazine’s annual CropLife 100 report. Read More