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Todd Vagts
Iowa State University Extension
Field Crops Specialist
1240 D. Heires Avenue Office: 712-792-2364
Carroll, IA 51401 Cell: 712-249-6025
Email: vagts@iastate.edu Fax: 712-792-2366
Please help ID this problem
Corn field near Glidden in Carroll County
Planted late April
Corn growth stage: V8
Previous crop: Soybeans
Year 2000 herbicides: Pursuit Plus + Treflan
Year 2001 herbicides: Harness (2 1/2 p/a)
Spring applied AA, no starter at planting
200 acre field
Observations
Large areas with severely stunted corn, mostly on sloped areas of the field. (3
to 20 acres spots)
Shallow planted (1/2 to 1 1/2 inches) all plants
Some disease on mesocotyl, but not consistent
Soil compacted under good plants, very loose under small
plants
No visible insect feeding injury on roots
Click on image for larger view
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This page last updated on 07/21/03
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