Xylela Fastidiosa -Ενας φωτογραφικός οδηγός οπτικου ελέγχου

FIGURE 4. Examples images of Olea europaea L. used in this study. (A) Υγιειή φύλλα; (B) OQDS-Φύλλα που εχει διαγνωσθεί η ασθένεια (Xylella fastidiosa-positive samples); (C) X. fastidiosa-αρνητικη διαγνωση ,αλλες ασθένειες./disorder. Note that the images given here are the native, original aspect ratio of O. europaea L. leaves. It is easy to distinguish healthy leaves from non-healthy leaves (A vs. B or C). However, tissue desiccation on the leaf tip, if it occurs, is not exclusive to OQDS (C1, C4, and C6), thus it is challenging to detect the difference between OQDS and non-OQDS samples (B vs. C).
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Symptoms of olive quick decline syndrome. (Photos: 

Rodrigo Krugner)