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Submitting annual plants
Observe symptoms and patterns, document what you see with pictures while inspecting the plants (close-up and general distribution in the field, greenhouse, high tunnel etc.).
Download and fill out our form as completely as possible.
- Provide background information, such as when the symptom first appeared, variety, pattern, and distribution of the problem. consider sharing digital photos before collecting a sample or along with your sample.
Collect several samples:
- Before applying any disease‐controlling chemicals
- From the areas where symptoms are starting, developing and developed.
- Avoid samples with advanced symptoms. A completely wilted or dead plant/tissue is not a good subject to submit.
- For seedlings samples: send whole plug trays, leave the plugs in the tray, (see example below). If individual seedlings, make sure to keep the root ball and any media contained in a plastic bag or aluminum foil.
- If potted, bag the pot and seal at the soil line with a twist tie or a rubber band bag. Use another bag for the aerial plant parts, but do not cut the root ball off the above-ground plant parts. See video Properly Collecting and Packaging a Sample for Diagnosis. (Include 3-5 plants).
- In the field/ ground, dig around the roots instead of pulling the plants. Shake most of the soil off the roots. Bag the roots and seal at the soil line with a twist tie or a rubber band. Use another bag for the aerial plant parts, but do not cut the root ball off the above-ground plant parts. See video “Collecting Whole Plants For Plant Problem Diagnosis.” (Include 3-5 plants).
- Do not add paper towels or water along with the sample. Excess moisture can cause rapid deterioration of the sample and proliferation of secondary organisms. Wrap in dry newspaper instead.
- Pack your wrapped sample tightly in a box to prevent dislodging the soil. Ship the package early in the week via overnight delivery. Walk-ins are welcome!