Olive quick decline syndrome
Disease of olive trees
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Impact
The disease particularly affects olive groves. It was first detected in Southern Italy in 2013, in the Salento Peninsula; by late 2013, it was estimated that approximately 8,000 hectares were affected. As of 2020, the disease was threatening olive groves and oil production in Italy, Greece, and Spain, which together account for 95% of European oil production. One 2020 model predicts an economic impact of the disease for Italy over 50 years of between 1.9 billion to 5.6 billion Euros.
The disease has been detected in olive crops in California, Argentina and Brazil.
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Symptoms
Symptoms include leaf scorch and desiccation of twigs and branches, beginning at the upper part of the crown and then moving to the rest of the tree, which acquires a burned look.