A tiny beetle and its deadly fungus is threatening South Africa's trees: The polyphagous shothole borer is tiny - but a fungus it's commonly associated with can be deadly for trees. Wilhelm de BeerSandton is Johannesburg’s economic hub – home to numerous companies’ headquarters and the Johannesburg Stock Exchange. And now it has a new, unwelcome resident: a tiny beetle that … [Read more...] about A tiny beetle and its deadly fungus is threatening South Africa’s trees | The Conversation