DAKAR (Reuters) - Locusts nesting in northern Mali and Niger threaten next year's food crop, the U.N.'s top aid official in the region said, after donors and governments across Africa's Sahel zone have contained a crisis caused by shortages this year.
Rains falling across the Sahel bode well for a healthy 2013 harvest but the pests, due to start moving across the region within weeks, add to long-term problems like high food prices and low production which must be tackled to end cyclical crises, David Gressly told Reuters in an interview.
