America Spent $12.5 Billion Fighting the Emerald Ash Borer. The Woodpeckers Did It For Free

America Spent $12.5 Billion Fighting the Emerald Ash Borer. The Woodpeckers Did It For Free In 2002, a beetle from eastern China arrived in a Detroit shipping crate and went on to kill more than 100 million American ash trees. The federal response cost $12.5 billion. It did not stop the beetle. What did stop it was already in the woods. Four native bird species — and one parasitic wasp the size of a sewing needle — quietly built a predation pyramid that no quarantine, no insecticide injection, and no government program had ever designed. This documentary follows the decade...