Escalating threat: increasing impact of the polyphagousshot hole borer beetle, Euwallacea fornicatus, in nearly allmajor South African forest types Original paper: G. Townsend · M. Hill · B. P. Hurley ·F. Roets Abstract The polyphagous shot hole borer (PSHB; Euwallacea fornicatus), is an invasive ambrosia beetle and poses a significant[…]
December 2025 Update PSHB
by Francois Krige Some of the trees we have felled this summer have been in my care for more than 30 years. It is really sad to see so many dead and dying European oaks in Rondebosch, Newlands, Claremont, Kenilworth, and Wynberg. There is the occasional tree that appears resistant,[…]
Polyphagous Shot Hole Borer Beetle 2023
The infestation in the Southern Suburbs of Cape Town cannot be stopped or contained, there are no licensed treatments for PSHB nor any peer reviewed studies showing that any treatment is effective.