Roger Beachy grew up in a traditional Amish family on a small farm in Ohio that produced food “in the old ways,” he says, with few insecticides, herbicides or other agrochemicals. He went on to become a renowned expert in plant viruses and sowed the world’s first genetically modified food crop—a tomato plant with a gene that conferred resistance to the devastating tomato mosaic virus. Beachy sees no irony between his rustic, low-tech boyhood and a career spent developing new types of agricultural technologies. For him, genetic manipulation of food plants is a way of helping preserve the traditions of small farms by reducing the amount of chemicals farmers have to apply to their crops.