Weekly Crop Scouting Report

September 30 - Scout for Podworm and observe Hessian Fly free date

PDF         Audio

Jill Scheidt, agronomy specialist with University of Missouri Extension, scouted fields near Arcola in Dade County and fields near I-49 along Hwy. 126 in Barton County on Sept. 30.

Soybean Report
Scheidt observed soybeans in the seed development to full seed stage, with leaves of more mature fields are turning yellow.

“As soybeans enter the full seed development stage, podworms become less of a concern because they prefer to feed on small, tender seeds,” said Scheidt. Late planted and second crop soybeans are most at risk for podworm feeding. “Due to wet weather, a fungus may have killed podworms. Look for podworm mummies to see if the fungus has controlled the podworm population,” said Scheidt.

Scheidt also observed a little grasshopper pod feeding in soybeans with developing seeds, but not enough to cause concern. Threshold level for any pod feeding is when five percent or more of pods are damaged and the insect is present in the field.

Wheat Report
The Hessian Fly Free Date is Oct. 10 for counties going east between Newton and Vernon counties to avoid Hessian Fly laying eggs in wheat stems and leaves.

“Control volunteer wheat to minimize insect threats, such as aphids, to nearby wheat fields. If volunteer wheat is nearby, consider applying an insecticide seed treatment or scout for aphids in the fall and early spring, as aphids overwinter in volunteer wheat,” said Scheidt. Aphids need to be scouted for in early spring regardless of a seed treatment.

Scheidt recommends planting a cover crop such as cereal rye to prevent soil erosion and weeds and promote soil health if wheat will not follow your crop. “When planting cereal rye, consider the possibility of a slightly reduced corn yield due to allelopathic properties. Allelopathy refers to a chemical in roots that certain plants excrete so nearby seeds do not germinate,” 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.

Additional resources:

2015 Pest Management Guide

Make the most from late planted soybeans

Assessing soybean plant stands

Previous weekly crop reports


2015 Crop Scouting Program enrollment

The Crop Scouting Telephone Update informs producers of pest threats.  A weekly, 2 minute recorded message and an email is sent out containing research based information on: environmental issues, nutrient deficiencies, pest threshold level, pest description, damage description and pest control.  Several fields in Barton County and surrounding counties are physically scouted each week; the report is based on those observations. 

Weekly scouting begins in mid March and ends in November; monthly telephone and email updates run November to February.

The cost of the program is $35 per phone number, $95 for three numbers and $30 per phone number for four or more numbers. 

The weekly field scouting report is sponsored by University of Missouri Extension and Barton County Extension.  To receive the 2015 weekly scouting reports, print the 2015 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.

2015 Crop Scouting Enrollment Form


Links to other resources:

Current soil temperatures in Lamar are updated every five minutes and can be found at http://agebb.missouri.edu/weather/realtime/lamar.asp

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