America’s Never-Ending Battle Against Flesh-Eating Worms
Every week, planes drop millions of sterilized screwworms over the border of Panama and Colombia, creating a transcontinental "barrier" to the pests far, far away from the U.S. Here's one of the planes getting loaded...
https://www.neatorama.com/2020/05/30/Americas-Never-Ending-Battle-Against-Flesh-Eating-Worms/