For decades, beekeepers have fought a tiny parasite called Varroa destructor, which has devastated honey-bee colonies around the world. But an even deadlier mite, Tropilaelaps mercedesae—or “tropi”—is on the march. Beekeepers fear it will wreak even greater havoc than varroa—and the ripple effects may be felt by the billions of people around the world who rely on honey bee-pollinated plants.
Deadlier than varroa, a new honey-bee parasite is spreading around the world
