Bioherbicide helps lift Kenya's witchweed curse on farmers

By Justus Netia and Hereward Holland KAKAMEGA/NAIROBI, Kenya (Reuters) - Catherine Wanjala's small maize farm in western Kenya was suffering. Her crops would stop growing at knee height and her field was peppered with the lilac flowers indicative of witchweed. The parasitic plant, also known as striga, was attacking the maize at its roots, sucking the water and nutrients out of it, meaning she