- Place fresh leaves in a zip-lock plastic bag with a dry paper towel. Include healthy and diseased leaves.
- Wrap cut stems in a dry paper towel and place in a zip-lock plastic bag.
- Shake roots free of soil, wrap in a barely damp towel and place in plastic bag.
- Many woody samples may simply be placed in a plastic bag.
Samples should be packaged and sent as quickly as possible. If the sample cannot be sent the same day, it should be kept refrigerated.
Ideally samples would be hand-carried to the lab. When sending samples through the mail try to mail early in the week so samples will not sit over the weekend.
Remember that sample quality is important!
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