This is something we as a society can easily fix.
“farmers have come to rely on a few varieties of olive…these trees, some of them over 2,000 years old, are succumbing to a bacterium, imported on ornamental coffee plants“
The global transport of random pants just to be pretty in our gardens is a major factor in the spread of infectious diseases and invasive species. We (EU) need to legislate to stop garden centers encouraging people to plant infected/invasive species in our gardens which then spreads to our important food crops. Especially as there’s an abundance of native species that will not only brighten your garden but also support our ecosystem?
This is an issue that the colonies of Europe dealt with 100’s of years ago as European settlers brought seeds and livestock to the Americans and Australia which got a foot hold in the new world and still to this day cause havoc.
It’s speculated that invasive plant species flourished Australia and the Americas because of the initial advantage of seed arriving on the hoofs of livestock. It took much longer and even to this day less voracious, for species of the New World to invade Europe.
An interesting cavet of human interference is the introduction of the Cane Toad to Australia in the 1930’s to combat an accidentally introduced beatle which was decimating the sugar cane harvest. It was only realised after the toad’s introduction that the beetle spent most of its life up high on the sugar cane while the toad living its life on the ground couldn’t reach it.
The toad to this day causes havoc to the native species of Australia and has spread rapidly with no natural predators.
Most interesting of all there is relatively recent evidence of Australias native fire ants adapting their behaviour and as a social species carry an entire toad back to their nest and consume it!