Cherry Leaf

When to Sample: 45 days after 50% of the flowers have opened.

Where: On the current year's shoots around the tree or from two opposite sides.

How: From 4 current-year shoots: choose the leaf located in the middle of the shoot.

Quantity: One leaf (or two if they are small) from 4 shoots per tree, and from 25 trees per orchard, totaling 100 leaves.

Conditioning: Place the batch of leaves in a clean, sturdy plastic bag. Label each batch clearly with: Name, address, variety, rootstock, date of sampling, and plot reference.

Precautions: Avoid sampling from diseased, poorly formed trees, or from the edge of the plot. Sample as far away as possible from recent treatments.