How a Swiss scientist saved 20 million people
by Isobel Leybold in Zurich, swissinfo.ch Insect expert Hans Rudolf Herren’s work in tackling the devastating cassava mealybug crop pest in Africa saved millions of lives and won him the 1995 World Food Prize. Herren, the subject of a new biography, tells swissinfo.ch how he managed to naturally control the bug […]