August 12, 2020

An irresistible scent makes locusts swarm, study finds

Tokyo (AFP) – The coronavirus isn’t the only plague making headlines this year — locusts are devastating crops in several parts of the world, and now scientists are discovering why the pest forms destructive swarms.On its own, a locust is fairly harmless. But so-called solitary locusts can undergo a metamorphosis, changing colour and joining together with millions of others in catastrophic clouds that strip fields.So what prompts locusts to transform from solitary to “gregarious”?A study published Wednesday in the journal Nature reveals the secret lies in a pheromone.Almost like an irresistib…


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