Olive quick decline syndrome
Olive quick decline syndrome (OQDS) 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 restricts the flow of sap within the tree and so chokes its extremities.
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