Using food to explore all manner of topics, from agriculture to zoology. Eat This Podcast tries to go beyond the obvious to see how the food we eat influences and is influenced by history, archaeology, trade, chemistry, economics, geography, evolution, religion — you get the picture. We don’t do rec… read more
Climate change and global trade combine to make it ever more likely that new pests and diseases will threaten food supplies. A classic example is playing out now in Puglia, the region that includes the heel of Italy’s boot. The disease is caused by a bacterium — Xylella fastidiosa — that clogs the xylem vessels that carry water up from the roots. No water means leaves shrivel and scorch and eventually the host plant can die. In 2013, Xylella was found for the first time in Europe, in olive trees near Gallipoli. Plant health plans swung into action, to try and eradicate, or at least contain, the disease. And so did politicians and activists, blocking progress with ignorance, half-truths and manipulation. In consequence, the disease has now spread to cover the whole of the Salento peninsula.
In the view of people much more expert than I, there may now be no stopping Xylella. Rodrigo Almeida, of the University of California, published an article in Science last week, asking Can Apulia’s olive trees be saved? As he is an expert, I see no reason to present a different point of view, so you may find the podcast one sided. So be it.
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