Crop scouting reports
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, an extension agronomy specialist scouts 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 weekly field scouting report is sponsored by University of Missouri Extension and Barton County Extension. To receive the 2016 weekly scouting reports, print the 2016 Crop Scouting Enrollment Form, complete and return with payment to Barton County Extension, 801 E 12th, Lamar, MO 64759 or contact the MU Extension Center in Barton County, 417-682-3579.
The cost of the program is only $35 per phone number, $95 for three numbers and $30 per phone number for those with four or more.
2016 Crop Scouting Enrollment Form (PDF)
Current weekly report
October 4 - Observe Hessian Fly free date to avoid damage in wheat
Jill Scheidt, agronomy specialist with University of Missouri Extension, scouted soybeans near Carthage on October 5.
Scheidt observed soybeans in full seed and beginning to turn. “Green stinkbugs were found in some fields, but not at threshold level. Green stinkbug should be treated if at threshold until soybeans reach full seed and leaves begin to turn,” said Scheidt. Green stinkbugs at threshold level cause reduced seed size and quality, as well as delayed maturity.
“The Hessian fly free date for planting wheat in counties between Vernon and Jasper and stretching east is October 10th. October 14th is the Hessian fly free date for counties south of Jasper and stretching east,” said Scheidt. Hessian fly maggots hatch and feed on the grooves between the leaf sheath and stem with their sandpaper like mouthparts that suck plant juices.
“In the fall, maggots usually feed on the lower leaves and can cause heavy damage. Infested plants become stunted and stiffly erect, and leaves are thickened with a bluish green color. Heavily damaged plants usually die during the winter,” said Scheidt.
Insecticides generally are not recommended for Hessian fly control because of the difficulty of properly timing applications.
“Delay planting of wheat until after the fly-free date in your region to lower the wheat's susceptibility to Hessian fly infestations. After these dates, most adult Hessian flies die before the crop emerges and therefore cannot lay eggs. Other management practices include: destroying volunteer wheat and avoiding nitrogen fertilizer overuse,” said Scheidt.
The weekly field scouting report is sponsored by University of Missouri and Barton County Extension. For more information on the scouting report, or to learn how to receive the information earlier by telephone, contact the Barton County Extension Center at (417) 682-3579.
Links to other resources:
University of Florida velvetbean caterpillar information.
"Estimating Corn Grain Yield prior to Harvest" (Purdue University
Tiller population in wheat
Scouting for Podworms in soybeans
Scouting for Corn Earworms in corn
Scouting for Armyworms in wheat
Current soil temperatures in Lamar are updated every five minutes and can be found at http://agebb.missouri.edu/weather/realtime/lamar.asp.