Urgent research actions in response to the identification of Xylella fastidiosa in olive trees affected by the “Quick decline syndrome of olive”
Research activities started as response to the identification of Xylella fastidiosa in olive trees in Salento affected by the “Quick decline syndrome of olive” (CoDiRO, from the italian “Complesso del Disseccamento Rapido dell’Olivo”) , supported by the Regional Plant Protection Service, include a series of tasks aimed at the study of key aspects of epidemiology, in order to acquire the elements necessary for the proper planning of strategies for the disease control and containment.
The preliminary identification of X. fastidiosa by sequencing of portions of its genome, previously achieved by researchers of the IPSP need to be followed by significant insights aimed at:
- CONFIRM the presence of Xf based on the fulfillment of the EPPO protocols;
- DETERMINE THE GENETIC CORRELATIONS with genotypes (subspecies) that cause devastating diseases of grapevine (Pierce’s disease-PD), citrus (variegated chlorosis-CVC), almond / stone fruits (leaf scorching-ALS) and forest trees (bacterial leaf scorch – BLS).
- DEFINING THE PATHOGENICITY. The assessment of the virulence of Xf is a key aspect in the risk assessment and control strategies.
- IMPLEMENT APPROPRIATE DIAGNOSTIC TECHNIQUES
- IDENTIFY THE HOST RANGE in the outbreak
- Preliminary monitoring of potential INSECT VECTORS