Submitting Vegetables and Ornamental plants

 leave the plugs in the tray
whole plug trays: leave the plugs in the tray

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.

make sure to keep the root ball ant any soil contained in a plastic bag.
Make sure to keep the root ball ant any soil contained in a plastic bag

  • 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
  • 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.” 
  • 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.
  • 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!