-The Indian Express Locusts normally arrive during July-October, but have already been spotted in Rajasthan. At a time India is battling Covid, they present a new worry with their potential for exponential growth and crop destruction. On April 11-12, scientists at the Locust Warning Organisation (LWO) observed groups of grasshoppers at Sri Ganganagar and Jaisalmer districts of Rajasthan. But far from ordinary hoppers, these were Desert Locusts — the same destructive migratory...

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