Scout Now For Pests

A wet spring and late planting could lead to additional pest challenges early in the growing season. Growers should begin scouting for insects early and take measures to protect their crops, say insect control experts from Pioneer Hi-Bred, a DuPont business.

Begin monitoring fields as soon as the crop emerges, says Paula Davis, Pioneer senior manager for insect and disease traits. Scouting for armyworms, black cutworms, white grubs, and wireworms is vital since they typically can surface in early growing stages of the corn crop.

This is a critical period during the growing season," says Davis. "Growers need to monitor their corn crop, looking at specific indicators, then follow a management plan to resolve any issues.

• This year, high flights of armyworm moths have been reported in Tennessee, Kentucky, and southern parts of Ohio, Illinois, and Indiana. Moths prefer to lay eggs in grassy areas. No-till fields, small grains, and pastures are considered high-pressure locations for monitoring. Small armyworms may stay and feed on grassy foliage, but as the pests grow, larger armyworms have the ability to migrate and may pose a threat to nearby or adjacent cornfields, especially no-till fields..

If growers notice chewing of leaves and multiple larvae per plant, use an insecticide treatment. Recommendations may vary for each state, but generally, if 50 percent to 75 percent of the plants have signs of armyworm feeding, further action should be considered.

• Wireworms tend to thrive in extended periods of cool, wet conditions. The main indicator of wireworm is stand reduction. The good news is that many growers already have protection in place through insecticide seed treatment. However, if there is heavy infestation, consider an insecticide or high-rate insecticide seed treatment next year.

• Small black cutworms will show small shot holes in corn leaves. Once black cutworms reach the fourth instar, approximately one-half inch long, they can cut the plant, resulting in stand loss or irregular stands. Corn hybrids with Herculex I technology have very good protection against black cutworms.

The suggested threshold for considering an insecticide treatment has lowered recently due to the high corn commodity prices. Consider using an insecticide treatment if 1 percent to 2 percent of plants are cut and larvae are present.

• White grubs feed on roots of seedlings. In problem areas, growers will see irregular stands since pruning takes place on the roots. While there isn’t much to remedy a heavily infested field, growers can develop a plan for the following growing season — looking at soil insecticide or investing in a higher rate of seed treatments.

Leave a Reply

Latest News
Young Corn Plants
ManagementTimac Agro USA Acquires Michigan Ag Retailer
January 20, 2017
Timac Agro USA, an agriculture supply company specializing in high-efficiency plant and animal nutrition products, has acquired St. Louis,MI-based A&E Ag, Read More
Soybean field
Crop InputsNufarm Teams Up With John Deere Financial
January 19, 2017
Nufarm and John Deere Financial have teamed up to help farmers grow a better tomorrow. This program helps make purchases Read More
Sonny Perdue
LegislationTrump Formally Picks Perdue As Agriculture Secretary
January 19, 2017
U.S. President-elect Donald Trump officially announced Sonny Perdue as his choice for secretary of agriculture on Thursday, selecting a former Read More
ManagementPresident Trump, Wisconsin Review, and a Dow-DuPont Upd…
January 18, 2017
Editors Paul Schrimpf and Eric Sfiligoj reflect on a new administration, a recent winter show, and crop protection company mergers. Read More
Industry NewsBayer, MS Technologies Get China Approval For Balance G…
January 18, 2017
MS Technologies and Bayer have received import approval from China for Balance GT soybeans. The new Balance GT Soybean Performance Read More
Werner Baumann, Bayer AG, and Hugh Grant, Monsanto
Industry NewsReport: Monsanto, Bayer CEOs Among Latest to Make Trump…
January 18, 2017
The chief executive officers of German chemical giant Bayer AG and U.S. seed behemoth Monsanto, Werner Baumann and Hugh Grant, Read More
Giant Ragweed
HerbicidesStudy: Focusing On Weed Seedbank Can Help Manage Herbic…
January 18, 2017
Researchers writing in the latest issue of the journal Weed Science provide important insights on the control of herbicide-resistant giant Read More
Management3 Financial Trends To Watch In Agriculture
January 17, 2017
I recently had the opportunity to attend a meeting of credit managers for Midwest ag supply and input companies, in part Read More
Andersons Retail Store
CropLife 100The Andersons To Close All Retail Stores; Shutdown Does…
January 16, 2017
In a stunning announcement to the Toledo area, The Andersons Inc. said on Sunday that it would close its two Read More
Trimble TMX-2050 In-Cab Display
Eric SfiligojPrecision To Lead Agriculture In 2017?
January 16, 2017
Another new year is upon us! And I’m certain I speak for many in the agricultural world when I say Read More
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