A tree-killing beetle has invaded South Africa. This is what should be done.
You have to draw an ethical line somewhere so if you were vegan, would you still eat avocados?
The beetle and the fungus have devastated trees in California in the US as well as in Israel. Now they're in South Africa.
Avocado demand is driven not just by their supposed health benefits, but by their newness, exclusivity and symbolic, aspirational value to a burgeoning middle class.
Our appetite for avocados affects more than just our choice of sandwich filling.