Please follow the instructions relevant to your submission:
- Collect and Submit Plants for Testing
- Collect and Submit Shrubs and Trees for Testing
- Collect and Submit Turf for Testing
For more information, contact the Plant Diagnostic Clinic either by email or telephone, 605-688-5545.
The appropriate form should be completed and mailed with the sample. Please fill out as completely as possible to aid in an accurate diagnosis.
- SDSU Plant Diagnostic Clinic Sample Submission Form
- Soybean Cyst Nematode (SCN) Soil Sampling Information Sheet
SDSU Plant Diagnostic Clinic
SPSB 153, Box 2108
Plant Science Building, Jackrabbit Drive
Brookings SD 57007
Collect and Submit Plants for Testing
- Provide Information
- Download our form at http://www.sdstate.edu/ps/plant-clinic/sample-guidelines.cfm (be sure to fill it out completely).
- Map it Out
- Record location of the infected plant
NOTE: Be sure to look at the infected plant proximity to healthier plants
- Look around the environment
Examples include: irrigation, shading, proximity to sidewalks, parking lots, buildings, and past damage such as construction.
NOTE: This will help you determine if the disease is spreading and it will help form a mental picture of what the site was like to the diagnostician.
- Dig up the Plant
- Include BOTH roots and soil
BE AWARE:Symptoms you see on the leaves and stems of the plant may be the result of root infections or poor soil conditions; therefore, make sure to include as much of the plant material as possible. Photos are helpful if taking an entire plant sample isn’t possible.
- Package the Sample
- Keep each part of the plant separated
Root and Soil: Wrap the roots and soil in a plastic bag, tie/seal bag around the stem just above the soil (loosely tie the plastic so air exchange occurs)
Plant: Place entire plant into a Ziploc bag along with the wrapped roots and soil. Place a dry paper towel inside the Ziploc bag to prevent the plant from rotting.
- Placement & Shipment
Place the Ziploc bag into a box and fill the empty spaces with newspaper. This will keep the sample from becoming damaged during shipment.
- Ship it Quick
- Diseases spread rapidly so you may need to ship your samples by two-day or preferably by overnight delivery.