Invasive mesquite plants do more than deplete water reserves – new research in South Africa shows they damage soil too

Mesquite tells a story about unintended consequences; but it also shows how careful, collaborative responses can lead to solutions for people and the environment.

By: Siviwe Malongweni, Sol Plaatje University, The Conversation

Outlets: The Conversation

Published: February 24, 2026

Words: 1,287

Last Updated: 2 weeks, 2 days ago

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By Siviwe Malongweni, Sol Plaatje University

Mesquite (Neltuma juliflora), a woody plant native to parts of South America, was introduced into South Africa’s drylands in the 1880s with good intentions.

Bringing it to South Africa was meant to stabilise soils, provide shade, and offer a source of fuelwood in some of the country’s most water-limited landscapes. But today, particularly in the Northern Cape province, it’s a clear example of how an introduced species can …

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