What sort of natural disaster is caused by swarming locusts?
Locusts are vegetarians. As they swarm and migrate they devastate grasslands and crops in the areas they pass through. The results are similar to the disaster caused by the rabbit plagues in Australia. Once started, a locust plague is just about impossible to stop. Various efforts have included destroying egg masses laid by migrating swarms. Hopperdozers can also be used. These are large screens on wheels and are driven into a moving swarm so that the insects hit the screens and drop into troughs containing water and kerosene.
