1. One cup of representative soil and about 1 tablespoon of roots (or several pieces of root about 2 inches long) should be collected. Roots and soil should be placed together in a plastic bag and sealed.

2. Place two or three samples of the foliage in a separate plastic bag . A range of symptoms should be selected. If insects are observed on stems and leaves, they should not be removed. They should be left on the plant material and enclosed in a plastic bag.

3. Water should not be added to any of these materials.

Return to Sample Preparation