An olive grove infested with Xylella fastidiosa in Apulia, Italy in 2019
Common names
OQDS
Causal agents
Xylella fastidiosa
Hosts
Olive trees
Vectors
Meadow froghopper
Distribution
Southern Italy
Symptoms
Dieback of the leaves, twigs and branches
An infected olive grove in Italy in 2019
Disease of olive trees
Olive quick decline syndrome (OQDS) (in Italian: Complesso del Disseccamento Rapido dell'Olivo, CDRO or CoDiRo) is a wasting disease of olive trees which causes dieback of the leaves, twigs and branches so that the trees no longer produce crops of olives. The main cause is a strain of the bacterium, Xylella fastidiosa, which is spread by plant-sucking insects such as the meadow froghopper. The bacteria restrict the flow of sap within the tree and so choke its extremities.[1]
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