ZAMBIA Agriculture Research Institute (ZARI) says the extent of damage caused by the outbreak of brown streak disease in Luapula, Northern and Muchinga provinces has not been quantified yet. Cassava brown streak disease (CBSD) is a severe virus disease that destroys the crop. In an interview, Tuesday, ZARI Director Ivor Mukuka said officers from his ministry and Disaster Management and Mitigation Unit (DMMU) were on the ground to aid affected farmers with information and new planting materials. “Like I did mention, we are working together with DMMU and I have to confirm that our officers are already on the ground to ensure that all the areas that are affected are given planting materials. We know the presence but in terms of...