Plant Diagnostic Clinic
573-882-3019
What's new
Asian soybean rust collection and sample submission information
Simeon Wright
Plant Diagnostic Clinic
Collecting
When sampling soybean fields, examine plants carefully, paying particular attention to the lower half of soybean plants. Examine the undersides of leaves.
- If you see something that looks like a possible soybean rust problem, do the following:
- Select several representative leaves and other above-ground portions of the plant displaying the potential rust symptoms.
Packaging
- Press flat leaves that are dry between dry paper towels or newspapers.
- Place the leaves in a zip-lock type self sealing plastic bag.
- Place the first bag inside a second similar bag, making sure the exterior of the second bag does not become contaminated with potential spores.
- Using a permanent marker, label the bag with the date, host plant, name of the collector, phone number, collection location within the field, field location, county, and nearest intersection.
Shipping
- If the sample can't be shipped immediately, keep the leaves cool by placing them in a cooler or refrigerator until they can be shipped. Do not leave in direct sunlight or in an enclosed vehicle. Degraded samples are useless.
- As soon as possible, submit samples to the University of Missouri Extension
Plant Diagnostic Cinic..
- Ship in a box, sealing all seams with tape.
- Ship samples by overnight delivery.
- Notify the plant diagnostic clinic if possible, to let diagnostic staff know that a potential soybean rust sample is on the way.
- If you have any questions about soybean rust or submitting potential soybean rust samples, please feel free to contact clinic staff by e-mail or the phone number above.
USDA national soybean rust commentary
Updated 11/15/06
