Integrated Crop Management News
 

Document Type

Article

Publication Date

9-18-2000

Abstract

After Labor Day, some soybeans started to turn yellow, especially those in maturity groups II or earlier. However, you also may have observed premature defoliation in soybean fields planted with later maturity groups, such as group III or later. Typically, only some areas within fields have defoliated plants; in the rest of the field, the plants are still green. Such defoliation can be caused by abiotic and biotic factors such as diseases. If defoliation is caused by disease, infected areas offer a good opportunity to spot the disease, which can be helpful in future prevention.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit https://crops.extension.iastate.edu/.