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Could a beetle cause a world without avocados?

A female ambrosia beetle, E. validus.
A female ambrosia beetle, E. validus.
Matthew Kasson

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Guacamole is a favorite here in California, where the state is known for its flourishing avocado trees. There is a worldwide threat to chips and dip now, as a deadly fungus threatens avocado trees both in California and around the world.

That fungus is spread by the ambrosia beetle, and Matthew Kasson, a post-doctoral research in forest pathology at Virginia Tech, joins the show with more.