Climate change created unprecedented conditions for the locusts to breed in the usually barren desert of the Arabian gulf, according to experts, and the insects were then able to spread through Yemen, where civil war has devastated the ability to control locust populations.
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It was Cyclone Mekunu, which struck in 2018, that allowed several generations of desert locusts the moist sand and vegetation to thrive in the desert between Saudi Arabia, Yemen and Oman known as the Empty Quarter, breeding and forming into crop-devouring swarms, said Keith Cressman, locust forecasting expert for the UN’s Food and Agriculture Organization (FAO).
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The FAO has warned that the food security of 25 million people could be endangered by the locusts, which according to the agency’s locust monitoring service have been spotted in at least 10 countries over recent months. One swarm recently reported in Kenya covered an area the size of Luxembourg.
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Cressman said Yemen is a “frontline” country for locusts, with the insects typically present throughout the year. But its once effective locust programme no longer has the same impact in cities where control is now divided between the government and Houthi rebels.
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