Imagine a living, flying cloud of voracious grasshoppers so dense that it blocks out the sun. That's the scene in East Africa and parts of Asia as swarms of desert locusts are destroying crops — and if left unchecked, the pests could multiply 500 times over by June, leaving millions facing severe food insecurity.

In this episode:

Cyril Ferrand, a resilience team leader with the United Nations' Food and Agriculture Organization.

For more:

Alarm as coronavirus curbs disrupt East Africa fight on locusts

Can East Africa's locust plague be stopped?

In Pictures: Desert locusts swarm parts of East Africa

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