We began work this year in a high tunnel in Benton Harbor Michigan to observe how a “V” trellis (Trellis Growing Systems, Ft Wayne IN) can improve raspberry cane management. Early this spring, the floricanes on potted raspberries were secured below 45 degrees on the right trellis arm. This caused the fruiting laterals (branches) to grow upwards on one side of the floricanes. This week, as the flower buds were visible on the laterals, the canes were secured in a vertical position on the left arm. The goal is to position the fruit on one side of the floricanes for easy picking, and keep the developing primocanes on the opposite side so they do not obscure the fruit.
K. Hanson: Tunnel Berries Outreach Coordinator