The multifunctional net is a new model of rain and hail cover designed to protect the cherry tree against the D. Suzukii fruit fly. The system uses a white anti-insect net placed in a double layer in the upper part (with a rainproof function) and in a single layer on the sides, later joined to the upper part in order to fully enclose the row of trees. The side nets are raised for harvesting and pruning in the summer, and during the winter. This system is only applicable to espalier cherry trees and is very well suited to dense planting.