Surrey University and councils pilot weed management schemes

Researchers at the University of Surrey’s Institute for Sustainability have launched a trial at Onslow Park and Ride in Guildford to compare weed management methods for Guildford Borough Council and Waverley Borough Council.

The study, part of the University’s Civic Lab collaboration, will test glyphosate, hot foam and acetic acid, alongside existing practices such as hand weeding, sweeping, mulching and jet washing.

Researchers will evaluate how well each option controls weeds and examine wider impacts, including resource use, waste, energy consumption, vehicle trips and operational demands. Councillors said the trial will help the two councils make evidence-based decisions that reduce reliance on herbicides where possible while keeping parks, streets, footpaths and other public spaces safe, accessible and well maintained.

Visitors to the site may notice longer vegetation during the monitoring period. A life cycle assessment will be completed for each treatment, producing a final report and case study to inform future policy.

The project reflects the council’s wider partnership, which has existed since 2022, and supports their goals around biodiversity, climate action and sustainable land management.

Professor Zoe Harris noted that many alternatives to glyphosate are marketed as environmentally friendly without strong evidence, so the trial is intended to measure actual environmental costs and effectiveness rather than rely on labels.

Overall, the initiative aims to identify the most practical and sustainable weed-control approach for local public spaces. Results will support future procurement, clearer communications with residents, and a balanced approach to managing weeds across both boroughs over the coming years.

Photo by Ries Bosch on Unsplash