When European researchers recently announced a new technique that could potentially replace chemical pesticides with a natural “vaccine” for crops, it sounded too good to be true. Too good partly because agriculture is complicated, and novel technologies that sound brilliant in the laboratory often fail to deliver in the field. And too good because agriculture’s “Green Revolution” faith in fertilizers, fungicides, herbicides, and other agribusiness inputs has proved largely unshakable up to now, regardless of the effects on public health or the environment.
