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,[…]
Cape Talk interview with Krige Trees
Lunch with Pippa Hudson is CapeTalk’s mid-afternoon show. Pippa speaks to Francois Krige about the replacement of our damaged old trees and Polyphagous Shot Hole Borer Beetle.
Polyphagous Shot Hole Borer Beetle 2025 Update
As of the end of summer 2025.
The beetle has spread quickly through the southern suburbs, from Bergvliet in the south to Woodstock in the north, the M5 in the east and into the eastern parts of Constantia and Bishopscourt.
Tree Protection Plan
by Francois Krige Trees that are to be retained within areas where construction is taking place need to fenced in for protection purposes. These fenced in areas are Tree Protection Zones. (TPZs) The TPZ should always be as large as possible, however with densification being the order of the day[…]
Wood chip
by Francois Krige Mulch is a layer of some type of material on the surface of the soil. It is usually coarse in texture. and provides the benefits mentioned below. This is opposed to a composted or planting mulch, which is used as a soil amendment – something that is[…]
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.
