Bold warning: a tiny beetle is now lurking in Cape Town’s heart, threatening our cherished trees. The invasive Polyphagous Shot Hole Borer (PSHB) has been confirmed in the Cape Town CBD and Hout Bay for the first time, signaling a serious turnout of risk for urban greenery.
Researchers found PSHB-positive samples from trees along Long Street, St George’s Mall, Military Road, Tamboerskloof, and Victoria Road in Hout Bay, marking the pest’s arrival and giving tree enthusiasts plenty to worry about. This small insect bores into trees, where it lays eggs and introduces a fungus that can damage or even kill the tree host. Its broad host range includes many common tree species, amplifying concerns for both public landscapes and private gardens.
City officials are still determining how many trees are affected. Deputy Mayor and head of Spatial Planning and Environment, Eddie Andrews, explained that while the infestation’s full scope isn’t yet known, the city’s monitoring teams are actively surveying to map the spread.
We’re calling on all CBD and Hout Bay property owners, along with other residents across the city, to inspect their trees for warning signs and to contact the municipality at the first sight of symptoms. City staff may need access to private properties to perform thorough assessments and gauge the infestation’s reach. Officials will carry identification and wear city-branded gear for easy recognition.
Andrews stressed the urgency: cooperation from residents and businesses that handle plant material is essential to mounting a timely response.
PSHB has already been detected in several other towns and neighborhoods, including Somerset West, Gordon’s Bay, Strand, Newlands, Rondebosch, Claremont, and Rosebank. Additional affected areas comprise Observatory, Kenilworth, Wynberg, Durbanville, Pinelands, Parow North, Bellville, Brackenfell, Kraaifontein, Penhill, Constantia, and Durbanville.
But here’s where it gets controversial: some stakeholders argue that the economic and social costs of aggressive containment might rival the ecological risks of inaction. Could targeted, data-driven monitoring and selective tree removal be enough, or do we need broader, more invasive measures to protect urban forests? And this is the part most people miss—how do we balance timely protection with protecting property owners’ rights and budgets while still prioritizing long-term tree health?
If you’re curious how PSHB spreads and what you can do as a resident, start with these steps: inspect trees for thinning canopies, oozing sap, or fine specks of frass near entry points; report suspicious trees to the municipality; and avoid moving infected plant material between sites. For more guidance, follow official updates from the city and trusted conservation sources.
Original reporting: Brandon Nel. For ongoing updates, monitor local news and the IOL app.
