Italy's precious olive industry is in danger of collapsing because of an insect-borne bacteria that is spreading across ancient groves in the country's south. Experts warn there is no way of stopping the infestation which has killed thousands of trees. <br />Al Jazeera's Claudio Lavanga reports from Gallipoli in Apulia.<br />Subscribe to our channel http://bit.ly/AJSubscribe<br />Follow us on Twitter https://twitter.com/AJEnglish<br />Find us on Facebook https://www.facebook.com/aljazeera<br />Check our website http://www.aljazeera.com/
