I spent a few days in around Beja in Baixo Alentejo this year, https://en.wikipedia.org/wiki/Beja,_Portugal The area with new new olive plantations is simply staggering as producers race to capitalize on the shortages in other Mediterranean countries. The fields (in effect, mini prairies) are so large I think this is only going to hasten the spread of disease it will simply be impossible to exercise proper hygiene or quarantine procedures over such large areas.

I wish all growers were as responsible and fore-sighted as you, good luck.