(MENAFN- The Conversation) Australia's black wattle tree (Acacia mearnsii) has spread across South Africa, taking over millions of hectares of land and pushing indigenous plants aside. Economist Saul ...

Australia's black wattle tree (Acacia mearnsii) has spread across South Africa, taking over millions of hectares of land and pushing indigenous plants aside. Economist Saul Ngarava researches ...

What is black wattle and what threat does it pose to the environment? The black wattle is an invasive Australian tree that arrived in South Africa in 1871. It was originally introduced in plantations ...