UPSC Prelims 2018·GS1·geography·ecology and environment

Why is a plant called Prosopis juliflora often mentioned in news?

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Last updated 23 May 2026, 3:31 pm IST
  1. AIts extract is widely used in cosmetics.
  2. BIt tends to reduce the biodiversity in the area in which it grows.Correct
  3. CIts extract is used in the synthesis of pesticides.
  4. DNone of the above

Explanation

Prosopis juliflora, also commonly known as mesquite or 'Vilayati Babul' in India, is frequently mentioned in news due to its classification as an invasive alien species. Its notable characteristic is its aggressive growth and ability to thrive in harsh, arid conditions. However, this comes at a significant environmental cost: It outcompetes native vegetation for water and nutrients, forming dense, monoculture stands. It can lower the groundwater table due to its deep roots and high water consumption. The dense thickets it forms reduce habitat and food sources for local wildlife. Its thorns and allelopathic effects (releasing chemicals that inhibit the growth of other plants) further suppress native flora. All these factors collectively lead to a significant reduction in the biodiversity of the areas where it establishes itself. The other options are incorrect: A) Its extract is not widely known for use in cosmetics. C) Its extract is not commonly used in the synthesis of pesticides. Therefore, its primary mention in environmental news is due to its detrimental impact on biodiversity.
geography: Why is a plant called Prosopis juliflora often mentioned in news?

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