Black Cutworms Moving North

Pioneer recommends early scouting to monitor any potential outbreaks.

Recent university reports show significant captures of black cutworms throughout the Corn Belt, and there are indications the pest is moving further north into Midwestern cornfields. Experts from Pioneer Hi-Bred, a DuPont business, recommend growers begin monitoring fields closely now for signs of black cutworms – ranging from small pinholes the pest may have left behind to the actual cutting of the corn stalk.

Recent wet conditions and southerly winds this spring have been conducive for black cutworms to move further into the Midwest," says Paula Davis, Pioneer senior manager for insect and disease traits. "Several Midwestern universities have reported significant black cutworm captures in Missouri, Illinois, Indiana, and Iowa."

Corn plants are the most susceptible from emergence to V5 stage. Once the plant emerges, begin scouting for black cutworm problems. Black cutworms will cut the plant, resulting in stand loss or irregular stands. "Following the first cutting, growers should continue to monitor their crop," says Davis. "The threat for black cutworms can last up to three weeks after the first cutting date."

Once black cutworms reach the fourth instar, approximately one-half inch long, they can cut the plant. Black cutworms also can create small shot holes in the leaves of corn plants. No-till fields or fields with annual or perennial weeds are at higher risk for black cutworms. Egg-laying females are attracted to these areas. Additionally, soybean stubble is more attractive than corn stalks.

The suggested threshold for considering an insecticide treatment has been lowered recently due to higher corn commodity prices. Consider using an insecticide treatment if 1 percent to 2 percent of plants are cut and larvae are present. For additional information on timing an insecticide treatment, retailers can contact Pioneer agronomist or other seed experts.

"At this point, grower concerns have been minimal in northern Iowa. This doesn’t mean a grower should quit monitoring. It is important to regularly monitor your corn crop," says Chris Doud, Pioneer Iowa agronomist. "Growers need to walk their fields, inspect their crop emergence, and take stand counts. If a grower suspects a problem, they should start by digging in the soil to look for cutworms. Black cutworms oftentimes can be found in the surrounding soil profile near corn plants during the day and are more prevalent feeders at night or on overcast days when temperatures are cooler."

Pioneer offers hybrids with Herculex I, the only Bt (Bacillus thuringiensis) trait that helps control western bean cutworm and black cutworm.

Leave a Reply

Featured Stories

FertilizerCF Industries Terminates Merger Discussions With Yara International
October 21, 2014
CF Industries Holdings and Yara International have terminated their discussions regarding a potential merger of equals transaction. Read More
StewardshipThree Ohio Ag Retailers Honored With 4R Certification
October 13, 2014
The 4R Nutrient Stewardship Certification Program has announced its first three agriculture nutrient service providers to achieve certified status. Read More
FertilizerJ. R. Simplot To Build New Ammonia Plant In Rock Springs, WY
October 7, 2014
The new plant will supply both the Rock Springs, WY, and Pocatello, ID, phosphate fertilizer production locations while having the capacity to meet the company’s next phase of anticipated phosphate expansion plans at Rock Springs. Read More
CropLife 100Hintzsche Fertilizer To Sell Business To Helena
October 2, 2014
Hintzsche Fertilizer of Maple Park, IL, has agreed to sell its business to Helena Chemical Co., Collierville, TN, according to a report on ElburnHerald.com. Read More

Trending Articles

Crop InputsPlatform Specialty Products To Acquire Arysta LifeScience
October 20, 2014
Once the acquisition is complete, Platform Specialty Products will combine Arysta LifeScience with previously acquired companies Agriphar and Chemtura Crop Solutions. Read More
Seed/BiotechMonsanto Offers New Support For Ferguson, Area Communities
October 8, 2014
Monsanto Co. has committed $1 million in new support for several collaborative efforts in Ferguson, MO, and surrounding communities in North St. Louis County. Read More
Seed/BiotechUnapproved Genetically Modified Wheat Found In Montana
October 3, 2014
USDA reports that one year after discovery of Monsanto's unapproved wheat in a single Oregon field disrupted U.S. wheat export sales, the GMO wheat has again been found in Montana. Read More
Equipment2014 Product Of The Year Voting
September 19, 2014
The deadline to vote for the 2014 CropLife IRON Product of the Year is October 31. Please cast your vote today to help us determine the winner. Read More
FertilizerFall Fertility 2014: Forecasting Fertilizer Use
September 7, 2014
Great crops this year have tapped the soil, and fall work is definitely called for, but how challenging will that get? Read More
CropLife 100CHS To Build $3 Billion Fertilizer Plant In North Dakota
September 5, 2014
The fertilizer plant in Spiritwood will be the single largest investment in CHS history, as well as the single largest private investment project ever undertaken in North Dakota. Read More

Latest News

EquipmentAgraScout App Available At No Cost To Universities
October 21, 2014
AgraScout, a fast and easy to use mobile crop scouting app, is now available at no cost to University students, Read More
LegislationNew Farm Bill Program To Provide Relief To Farmers Affe…
October 21, 2014
The USDA has implemented a new Farm Bill initiative that will provide relief to farmers affected by severe weather, including drought. Read More
ManagementGreenfield Scholars Program Aims To Sustain Agronomy Wo…
October 21, 2014
The program encourages talented students to study agronomy, crop and soil sciences while cultivating networks to develop the necessary workforce to sustain the profession. Read More
Paul SchrimpfPrecision Ag: Taking It To The Hill
October 21, 2014
A new coalition took the good news message of precision agriculture to Washington, DC, last month. Read More
ManagementUSDA Awards $18 Million In Small Business Research Gran…
October 21, 2014
The grants will provide high quality, advanced research and development that will lead to technological innovations and solutions for American agriculture. Read More
FertilizerCF Industries Terminates Merger Discussions With Yara I…
October 21, 2014
CF Industries Holdings and Yara International have terminated their discussions regarding a potential merger of equals transaction. Read More
Seed/BiotechSyngenta Ranked A Top 10 Biotech Employer For Third tim…
October 20, 2014
Syngenta ranked in the top 10 among the world’s top biotech employers, according to an annual survey conducted by Science magazine. Read More
CropLife 100Wheat Growers Break Ground For New Facility At Kennebec
October 20, 2014
Wheat Growers has broke ground for a state-of-the-art shuttle loader grain handling, fertilizer and agronomy facility in Kennebec, SD. Read More
FertilizerVerdesian Life Sciences Signs Agreement With Los Alamos…
October 20, 2014
Verdesian Life Sciences has signed a licensing agreement with Los Alamos National Laboratory to develop and market LANL’s latest nitrogen enhancement technology for plants. Read More
MicronutrientsStoller Group Announces Groundbreaking At New Office Bu…
October 20, 2014
Jerry Stoller, founder and president of Stoller Group, announced the groundbreaking at the site of the company’s future headquarters in Read More
Crop InputsBioSafe Systems Opens New Production Facility In Nevada
October 20, 2014
BioSafe Systems has completed construction of a state-of-art production facility in Sparks, NV, for its line of activated peroxygen products. Read More
Crop InputsPlatform Specialty Products To Acquire Arysta LifeScien…
October 20, 2014
Once the acquisition is complete, Platform Specialty Products will combine Arysta LifeScience with previously acquired companies Agriphar and Chemtura Crop Solutions. Read More
Seed/BiotechEPA Approves Dow’s Enlist Duo Herbicide
October 15, 2014
The Enlist Weed Control System, breakthrough technology to fight resistant and tough weeds, has received the long-awaited green light from federal regulatory authorities. Read More
MicronutrientsGypsum On Farms Could Help Keep Water Clean, Not Green
October 14, 2014
Gypsum, which has roots in the past as a farm soil treatment, also may have a bright future, and not just as a booster of crops but also as a protector of water. Read More
Photo credit: The United Soybean Board/The Soybean Checkoff.
Crop InputsVerdesian Grows Sales Staff
October 14, 2014
The new account managers will drive sales growth and support relationships with key customers in the plant nutrition and seed treatment and inoculants product categories. Read More
WebinarsUpcoming Webinars
October 14, 2014
Register for one of our upcoming Webinars or access our archive of past Webinars to view recordings of presentations that may be of interest to you. Read More
CropLife 100The Andersons Purchases Six Grain Elevators, Four Agron…
October 14, 2014
The Andersons has acquired Auburn Bean and Grain of Auburn, MI, which will increase the storage capacity of its Grain Group by about 13%. Read More
StewardshipThree Ohio Ag Retailers Honored With 4R Certification
October 13, 2014
The 4R Nutrient Stewardship Certification Program has announced its first three agriculture nutrient service providers to achieve certified status. Read More