The Roado-Tiller

CNN's John Sutter grew up on a farm in New York. His father was a gardener and he learned how to garden from him. He then moved to Alaska, where he wrote an organic gardening column for a local newspaper. One day his friend sent him a picture of a nematode being strangled by a fungus that was protecting a tomato root. The idea didn't make any sense but it did after doing some research.