Plant Health
| Soybean Rust |
Early Detection on Soybean Plants
Click on the small image for a larger image.
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Figure
1. The earliest stages of soybean rust are found on the
undersides of the first leaves in plants near the flowering
stage. |
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Figure 2. Chlorosis, or yellowing of infected leaves, progresses
in different degrees, usually not completely until the infection
is well advanced. Asian Vegetable Research and Development Center (AVRDC), courtesy of Arnold Tschanz, USDA, APHIS, PPQ, Riverdale, MD. |
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Figure 3. Soybean rust damage that appears on upper leaves of soybean plants when advanced. Reid Frederick, USDA, ARS, Ft. Detrick, MD |
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Figure 4. Spots with chlorosis characteristic of more advanced
infection. Reid
Frederick, USDA, ARS, Ft. Detrick, MD |
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