Researchers say the economic costs of a deadly pathogen affecting olive trees in Europe could run to over 20 billion euros. They’ve modelled the future worst impacts of the Xylella fastidiosa pathogen which has killed swathes of trees in Italy.
https://www.bbc.com/news/science-environment-52234561
origin - https://www.pipiscrew.com/2020/04/deadly-olive-tree-disease-across-europe-could-costs-billions/ deadly-olive-tree-disease-across-europe-could-costs-billions