Document Type
Article
Publication Date
9-17-2001
Abstract
After mid-August, many soybean fields had patches of yellow plants. These plants exhibited yellowing of the top leaves, often followed by brown margins on the leaves. My colleagues and I received many questions on why soybean turns yellow prematurely and whether top dieback, a disease caused by the fungi Phomopsisand Diaporthe, is the cause. Visits to problematic fields and examination of samples submitted to Iowa State University Plant Disease Clinic revealed three factors that can stress soybean, consequently causing leaf yellowing.
Copyright Owner
Iowa State University
Copyright Date
2001
Language
en
File Format
application/pdf
Recommended Citation
Yang, X. B., "Why is soybean yellowing prematurely?" (2001). Integrated Crop Management News. 1952.
https://lib.dr.iastate.edu/cropnews/1952
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