shutterstock. August 18, 2021 Pasha 120: Botanical gardens: why we need them and how they can also pose a risk Ozayr Patel, The Conversation CC BY-NC-ND10.8 MB (download) The diverse plant collections in botanical gardens increase the chance of pests and pathogens encountering suitable hosts and becoming invasive.
Shutterstock February 4, 2020 Trees in South Africa are under attack. Why it’s proving hard to manage Trudy Paap, University of Pretoria A tree-killing beetle that invaded South Africa two years ago and wreaked havoc in the country’s towns and cities still hasn’t been declared an emergency plant pest.
Shutterstock. November 2, 2018 The spread of shothole borer beetles in South Africa is proving tough to control Wilhelm de Beer, University of Pretoria and Trudy Paap, University of Pretoria A tree-killing beetle has invaded South Africa. This is what should be done.