The pink bollworm — an invasive species that plagues cotton farmers around the world — has been successfully eradicated from much of the U.S. and Mexico. Eradication campaigns rarely work, but this one did. NPR food and farming reporter Dan Charles gives us the play-by-play to how it took two concurrent approaches to eradicate this devastating pest. Email the show at [email protected]).Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)