In August 2023, a new phytosanitary survey was conducted. Ground inspections of the canopies of A. nebrodensis trees were accompanied by multispectral analysis with a drone to monitor any physiological and biochemical disturbances across the entire canopy.
Vegetation indices, calculated based on the reflectance of the canopies in the red, red edge, green, and NIR bands, showed a correlation with the phytosanitary conditions of the plants detected through close-up observations and are therefore a promising tool for monitoring the health status of the tree population.
Infrared image of a section of the main core of the A. nebrodensis population located in the Vallone Madonna degli Angeli, which includes trees numbered 18, 19, 20, and 29, situated within a beech forest.
