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Read more about the article Scientists warn of increasing threats posed by invasive alien species
The Polyphagous Shot Hole Borer is an ambrosia beetle that is native to Asia and was first recorded in South Africa in 2017. This beetle and an associated fungus pose substantial threats to both native and alien trees in the country. At least 80 tree species, including 35 native, are known to be attacked. This invasion has already caused huge damage by killing large trees in urban areas. The full extent of impact of this invader on the South African urban environment will only be ascertained over time. Municipalities already face the costly removal of many heavily infested street trees. Photos: Samantha Bush, Trudy Paap
2020 / Highlighted papers

Scientists warn of increasing threats posed by invasive alien species

Invasive alien species are one of the top five threats to biodiversity and ecosystems globally, yet only a handful of countries regard biosecurity measures as a priority.

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26 June 2020