Armyworm invasion threatens food supplies in Africa An outbreak of armyworm caterpillars present in some African countries threatens to strip the entire region of key food supplies. The warnings came at the close of an emergency regional summit in Harare to tackle an outbreak of crop-eating armyworms that have already caused damage to staple crops in Zambia, Zimbabwe, South Africa and Ghana. Reports also suggest Malawi, Mozambique and Namibia are affected. SOURCE: NEWS24