Olfactory responses to volatile organic compounds and movement parameters of <i>Philaenus spumarius</i> and <i>Cicadella viridis</i>

Xylella fastidiosa, the causal agent of several diseases in crops economic interest, could be rapidly transmitted and spread throughout agroecosystem landscape by xylem sap-feeding insects. Chemical signals environment drive behaviour Attractive or repulsive responses to may affect insects’ fitness, survival reproduction, elicit different movement patterns. Specific patterns derived from olfactory cues towards selection plants for feeding trigger transmission pathogen insect. Thus, understanding vectors’ response parameters are utmost importance. This work aimed assess Philaenus spumarius Cicadella viridis adults two Volatile Organic Compounds (VOCs) (cis-3-hexenyl acetate cis-3-hexen-1-ol) present almond, olive vine leaves. Insects’ behavioural were conducted a four-arm olfactometer, aforementioned VOCs tested at concentrations (5, 10, 20 30 µg/µl). At lowest concentration, females P. significantly attracted VOCs. highest concentrations, no significant differences detected among treatments. individuals showed their choice any concentration. Additionally, walking these insects was also studied absence food. Females C. can walk more higher velocity than males. Knowledge X. fastidiosa vectors essential develop new tools limit this phytopathogen.