MU Extension's centennial

On May 8, 2014, University of Missouri Extension celebrates 100 years of extending university-based research and knowledge beyond the campus into all 114 Missouri counties. In doing so, MU Extension has strengthened families, businesses and communities.

Happy 100th birthday, MU Extension!  Your centennial gift of $100, $1,000 or an amount of your choosing will help celebrate the milestones of a proud 100-year history and invest in a vibrant MU Extension that is looking forward to the next 100 years. Donate here.

Celebrating Anniversaries

Anniversary celebration

Barton County Extension staff, council members and 4-H volunteers serve cake and ice cream at the Lamar Fair in celebration of MU Extension 100 years and 80 years of 4-H in Barton County.

 

Weekly Crop Scouting Report 

Podworms are above threshold levels in many southwest Missouri soybean fields

This article is available as a PDF or Audio message.

Jill Scheidt, agronomy specialist with University of Missouri Extension in Barton County, scouted fields near 126 and Hwy. O on Aug. 27 for the MU Extension crop scouting program. Scheidt offers this advice from the field.

Corn
Corn harvest has begun. Corn should be harvested at fifteen percent moisture. For tips on reducing harvest losses visit our website and search for guide g1290, Measuring and reducing corn harvesting losses- http://extension.missouri.edu/p/G1290 .

Soybeans
Soybeans are in the podding to seed development stage.

“One to five soybean podworms per linear foot were seen in first and second crop soybeans. Threshold levels are one podworm per foot or when 5 percent or more pods are damaged,” said Scheidt. Recommended insecticides are: 2.8-4 ounces per acre of Mustang Max, 1-1.6 ounces per acre Warrior or 4-10.3 ounces per acre Hero. According to Wayne Bailey, state entomologist with the University of Missouri Extension, one podworm per foot of row can reduce yields by 1.9 bushels per acre. Early planting and early maturing varieties can reduce the threat of podworms.

Milo
“Milo in the flowering to milk stages should also be scouted for podworms until milo reaches the hard dough stage,” said Scheidt.

Threshold levels are one per seed head when seventy-five percent of the field is affected. The recommended insecticides are: 1.8-4 ounces per acre Mustang Max or 1.3-1.9 ounces per acre Warrior II. Open headed varieties and early planting can reduce the threat of podworms in milo.

Application Tips
“Use higher rates for larger larvae and aim to treat mid-size larvae. Do not spray in the heat of the day; it will result in low effectiveness. Podworm lifecycles last two or more weeks depending on size range of larvae,” said Scheidt.


Podworms

Podworms

More Information
The weekly field scouting report is sponsored by University of Missouri Extension and Barton County Extension. For more information on this scouting report, or to learn how to receive it a week earlier by telephone, contact the MU Extension Center in Barton County, (417) 682-3579.

Links to other resources:

Lodged corn

Soybean insects

Scouting for Corn Earworms in corn

Scouting for Armyworms in wheat

"Crop Nutrient Deficiency and Toxicities"

Previous 2014 Crop Scouting Reports

“Managing Nitrogen in Wet and Dry Years” by Peter Scharf

MU Extension Corn Insect Pests Diagnostic guide

MU Extension publication G7112, Black cutworm guide

Corn freeze damage

Spring freeze injury

Frost freeze to corn and soybeans

MU Extension publication M171, 2013 Missouri Pest Management Guide

To receive the 2014 weekly scouting reports, print the 2014 Crop Scouting Enrollment Form (PDF), complete and return with payment to Barton County Extension, 801 E 12th, Lamar, MO 64759.

Crop scouting is an essential part of integrated pest management (IPM). Scouting programs are designed to protect and maximize crop yield and quality while minimizing the risk associated with pesticide use.  Each week, extension agronomy specialists and agronomy assistants scout fields in Barton County and then report their findings through an automated phone service and email message. The message will go out to everyone signed up for the program.

The cost of the program is only $35 per phone number, $95 for three numbers, and $30 per phone number for those with 4 or more. For more information about the program, call the Barton County Extension Center at 417-682-3579.

 

Popular extension publications

MU Extension publication G427, 2011 Cash Rental Rates in Missouri
MU Extension publication G302, 2009 Custom Rates for Farm Services in Missouri
MU Extension publication G6201, Vegetable Planting Calendar