IC-496(21) -- July 24, 2006

Insects and Mites

Rotation-resistant corn rootworms in Iowa

Background info and the 2006 survey.
Plant Diseases

Recent soybean yellowing may be symptom of SCN

Healthy-looking fields may contain nematodes.
Insects and Mites

Soybean aphids down in July

But end of July, early August remain critical.
Degree Days

Location, location, location!

Degree day information for Iowa.
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