Since the 1910s, a mysterious ailment has afflicted coffee crops around the world. When plucked from the tree, some coffee fruit, usually plump and crimson, is riddled with round holes, leaving the beans inside nearly useless. The damage is all caused by the berry borer, a tiny, caffeine-loving beetle. But where did this insect come from? https://www.atlasobscura.com/articles/what-kills-coffee-plants