Crop protection can also be done very simply: by equipping the greenhouse with insect mesh. This keeps intruders out and you keep useful insects in the greenhouse. Huisman has developed its own system, specifically for use in Venlo greenhouses. The Harmonica system is a prefabricated mesh system that folds open like a harmonica when the window opens and folds closed when the window closes.
The mesh cassettes are mounted from the outside. Due to the clever construction, the mesh always folds in the right place, which greatly extends its lifespan. The system is made in the factory and can be installed quickly and easily in new and existing greenhouses.