Question

why locusts are called destructive migratory insect​

Answer 1

Answer:

A locust is a large, mainly tropical, grasshopper with powers of flight and it migrates in vast swarms which cause extensive damage to vegetation. The desert locust is considered the most destructive migratory pest in the world and a single swarm covering one square kilometre can contain up to 80 million locusts.

Answer 2

Explanation:

Locusts (derived from the Vulgar Latin locusta, meaning grasshopper[1]) are a collection of certain species of short-horned grasshoppers in the family Acrididae that have a swarming phase. These insects are usually solitary, but under certain circumstances they become more abundant and change their behaviour and habits, becoming gregarious. No taxonomic distinction is made between locust and grasshopper species; the basis for the definition is whether a species forms swarms under intermittently suitable conditions.

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