Published July 16, 2014
Scientists in Maryland are pitting insects against insects in a battle to control an invasive species. Around the world, non-indigenous plants and animals cost an estimated $1.4 trillion in damage and control expenses, according to the United Nations. But rather than spraying pesticides that risk doing additional harm, researchers are bringing in the invasive species' natural predators to try to restore balance. VOA's Steve Baragona has the story.