Africa: eLocust, an improved desert locust monitoring and early warning system

This year's locust invasion is threatening to devastate crops throughout the Sahel and spark a food crisis in West Africa's worst locust plague in 15 years. Keith Cressman explains how the FAO's eLocust sytem – a palmtop computer, GPS device and HF radio equipment that run on a car battery - is helping to minimize the consequences for the region's farmers.