Integrated Crop Management News

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Crop Minute - Aphids in Corn

August 26, 2011

Erin Hodgson, ISU Extension entomologist, is monitoring the rapid aphid infestation in Iowa corn fields. During the weekly crop minute, she tells where the aphids have been found and what justifies treatment at this point in the growing season.

Reduce Risk of Mycotoxin Contamination by Scouting Fields for Ear Rot

August 25, 2011
Symptoms of Aspergillus ear rot

Corn fields should be scouted for ear rot and associated mycotoxin contamination. Corn damaged by hail is at risk of ear rots, as is corn that has experienced hot, dry weather with occasional rain - conditions that favor Aspergillus and Fusarium ear rot development.

Corn Aphids Explode

August 20, 2011
Large aphid colonies in corn

It seems aphids are colonizing corn later in the summer and are building up to striking levels. They can be found at the base of the stalk, around the ear and sometimes building up colonies above the ear leaf.

Crop Minute - Goss's Wilt

August 18, 2011

Alison Robertson, ISU Extension plant pathology, is monitoring the development of Goss's wilt in Iowa corn fields. During the weekly crop minute, she talks about the steady increase, no known rescue treatment and how to identify Goss's wilt.

CREP Wetland Tour near Nashua Aug. 24

August 12, 2011

By John Lundvall, Iowa Learning Farms

Iowa Learning Farms (ILF) and the Iowa Department of Agriculture and Land Stewardship (IDALS) are hosting a tour of a Conservation Reserve Enhancement Program (CREP) wetland near Nashua in southeast Floyd County on Wednesday, Aug. 24, starting at 5:30 p.m.

Weather Impact on Midwest Corn 2011

August 9, 2011
 Pollination and kernel set problems in northeast Iowa

Shallow kernels, missing kernels, and tip back are common in field corn this year. A few days of temperatures exceeding 93 F are "bad" for corn production, but consecutive days of the high temperatures are especially bad. When the heat comes as silking gets underway the negative aspect is increased.

Iowa Learning Farms and ISU Extension to Host Field Day Aug. 25

August 8, 2011

By John Lundvall, Iowa Learning Farm

Iowa Learning Farms (ILF), Iowa State University (ISU) Research and Demonstration Farms and ISU Extension are hosting a field day at the ISU Agricultural Engineering and Agronomy Farm, near Ames, Aug. 25, from 9 a.m. to 2:15 p.m. The field day will feature strip-tillage and precision agriculture technology.