During plague years, desert locusts can cause widespread damage to crops, as they are highly mobile and feed on large quantities of any kind of green vegetation, including crops, pasture, and Fodder. A typical swarm can be made up of 150 million locusts per km2 and fly in the direction of the prevailing wind, up to 150 km in one day.  Even a very small, 1-km2 locust swarm can eat the same amount of food in a day as about 35,000 people.