Assessment of the Hyperspectral Data Analysis as a Tool to Diagnose in the Asymptomatic Leaves of Olive Plants.

is a bacterial pathogen affecting many plant species worldwide. Recently, the subspecies () has been reported as the causal agent of a devastating disease on olive trees in the Salento area (Apulia region, southeastern Italy), where centenarian and millenarian plants constitute a great agronomic, economic, and landscape trait, as well as an important cultural heritage. It is, therefore, important to develop diagnostic tools able to detect the disease early, even when infected plants are still asymptomatic, to reduce the infection risk for the surrounding plants.