DISEASE CLINIC
How to sample?
- Take a photo of the symptoms, if possible
- Samples should be taken from 4-5 randomly selected plants in an infection site.
- Place the samples separately in a paper bag (Never use a plastic bag!!)
- Seal the bag and label with the following: Collectors name, date, sample number, locality and cultivar
Specific tissue sampling
- Collect individual leaves, place between blotting paper (paper towel) and in an envelope
- Collect a sample that spans the diseased area, including +/- 2cm of healthy tissue on either side of the lesion
- Place in a paper bag
- Collect 200g of soil from under the diseased tree at a depth of 10-15 cm, place in a paper bag
- Collect root pieces (healthy and diseased) from the soiland place in an envelope
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