Destructive Pest On The Move

Late planting and a milder summer in many areas have impacted the spread of Western bean cutworm (WBC), but only in the sense of delaying the emergence of this destructive pest.

Recent trappings by university entomologists and field professionals from Pioneer Hi-Bred, a DuPont business, indicate the pest is moving eastward, with the heaviest infestations being reported in unprotected cornfields across northern Indiana, with some reports extending into Illinois and Ohio. Additional reports have confirmed the spread of WBC into central and northeastern areas of Michigan, areas new to WBC infestations.

"Traditionally, we’ve seen the heaviest pressure from Nebraska to central Iowa, but now we’re seeing WBC continue to move eastward along the I-80 corridor," says Paula Davis, Pioneer senior marketing manager for insect and disease control traits. "Most of the time the spread of WBC is complete by mid-August. This year it appears to be a little late, just like everything else."

WBC can reduce yields up to 40 percent in heavily infected fields. Young WBC larvae feed on tassels and silks, but eventually tunnel through the silk channel to reach developing kernels. Direct yield loss occurs as larvae consume all or parts of developing kernels. Because of the labor intensive nature of scouting, the critical timing needed for insecticide applications and the possibility that multiple treatments may be necessary, insecticides may not be an economical or effective solution to the WBC problem.

• Pioneer’s In-Plant Protection Vs. WBC

Spraying is occurring as signs of increased populations surface, but spraying must take place before the insect moves into the ear where it is protected by the husk.

The threshold is 5 percent of the plants with egg masses or small larvae in the tassel. With moth flights reaching peak levels and approaching completion, increased feeding can be expected.

Leave a Reply

Latest News
Corn
Eric SfiligojThe Mood From Madison? In A Holding Pattern
January 16, 2017
Last week, I had the chance to attend the annual Wisconsin AgriBusiness Classic show in Madison, WI. It’s been a Read More
Syngenta Sign
Crop InputsAccenture Helps Syngenta Transform Its Global Logistics
January 13, 2017
Syngenta, a leading agriculture company, has collaborated with Accenture to design and implement a new digital logistics operating model across Read More
Fall Creek Seth Harden The Nature Conservancy
StewardshipLocal Farmers’ Watershed Initiative: Continuous Improve…
January 13, 2017
The goal in the Big Pine Watershed Project is to more intentionally do what local farmers and responsible ag retailers Read More
HerbicidesEPA Expands Enlist Duo Herbicide Registration To 34 Sta…
January 13, 2017
The U.S. EPA has expanded the geography for application of Enlist Duo herbicide from 15 to 34 states. This means Read More
Olson Ag Enterprise
CropLife 100Wilbur-Ellis Acquires Nebraska Seed Retailer
January 13, 2017
Wilbur-Ellis’ Agribusiness, a recognized leader in precision agriculture technology and the distribution and marketing of plant protection, seed and nutritional Read More
ManagementDeere-Precision Planting Update and the Ag Secretary Wa…
January 12, 2017
Editors Paul Schrimpf and Eric Sfiligoj provide the latest on the court date for John Deere/Precision Planting and the quest Read More
Monsanto sign
Seed/BiotechMonsanto, NRGene Form Agreement For Big Data Genomic An…
January 12, 2017
Monsanto Co. and NRGene have announced that the companies have reached a non-exclusive, multi-year global licensing agreement on NRGene’s genome-analysis Read More
AGCO Custom applicator
SprayersAGCO, Asmark Institute To Offer Training For Beginning …
January 11, 2017
AGCO Corp. and the Asmark Institute are collaborating to offer a new training program dedicated to educating and developing custom Read More
ManagementAg Land Values In Limbo In 2017
January 10, 2017
Several factors will come into play in 2017 that will determine the direction of land values. Randy Dickhut, senior vice Read More
Industry NewsPattison Agriculture Positioned To Be Leading Canadian …
January 10, 2017
Pattison Agriculture Limited (Pattison Agriculture), a division of The Jim Pattison Group (the Pattison Group), has announced the merger of Read More
Fertilizer Tender close-up
MicronutrientsHow Micronutrients Fit Into 2017 Fertility Plans
January 10, 2017
Where do micronutrients stand going forward in fertility plans? For one thing, Tim Mundorf, Field Representative with Midwest Laboratories, says Read More
Fertilizer application
State of the IndustryCautious Optimism On Fertilizer In 2017
January 10, 2017
What kind of fertilizer rates are growers and retailers looking at in 2017 and beyond? According to stakeholders CropLife magazine Read More
Asmus Farm Supply crop protection products in storage
State of the IndustryCrop Protection Products Market: Complexity Begets Oppo…
January 10, 2017
While other key market segments in agriculture continue to see tumultuous shifts in sales volumes going forward (large equipment sales are Read More
RoGator RG1300B AGCO
Sprayers10 Sprayers That Will Showcase The Latest Application T…
January 10, 2017
Sprayer manufacturers continue to step up their games with the latest in application technology. From direct injection systems and four-wheel Read More
Soybean Field
FungicidesGrowers Report Yield Boost, Extended Residual Disease C…
January 9, 2017
With the new growing season around the corner, it’s time to start thinking about inputs for 2017. As growers weigh Read More
Donald Trump
Eric SfiligojTrump’s New Ag Secretary Coming Soon?
January 9, 2017
As agricultural experts are quick to point out, incoming President Donald Trump largely has the nation’s growers to thank for Read More
Bayer Monsanto
Crop InputsThe Path Ahead For Mergers & Acquisitions In Agricu…
January 9, 2017
Bayer AG’s proposed $66 billion takeover of Monsanto would create, by far, the industry giant capturing more than a quarter Read More
Jeff Troike Ceres Solutions
CropLife 100Troike Named CEO Of Newly Formed Ceres Solutions Cooper…
January 6, 2017
Jeff Troike has been named President and CEO of the newly formed agribusiness known as Ceres Solutions Cooperative. Ceres Solutions Read More