Bristol residents are complaining of a strong stench of vinegar in the streets due to a scheme to use the chip shop favourite as weed killer.
The council is using vinegar in a year-long trial in Cotham to eliminate unwanted plants as an alternative to the chemical glyphosate, which has been linked to cancer.
But environmental campaigners say the condiment will do little to stop weeds from sprouting across the city, while residents now also have to deal with a potent pong.
The Pesticide Safe Bristol Alliance (PSBA) described the use of vinegar as a “bizarre” choice with safer, modern alternatives available to kill weeds.
Harriet Williams, from PSBA, said: "The only true trial involved here will be that endured by local residents, as they face a year of weeds growing upon streets and pavements, and the smell of vinegar in unexpected places."
Gillian Douglas, from Bristol City Council, said: "This trial of Glyphosate-free weed treatments is still in its early stages, having been implemented in response to widespread public concern about the use of Glyphosate as a weed killer.
"We are sorry to hear that some residents are concerned about the use of vinegar and we will monitor feedback throughout the trial."
Earlier this month MEPs voted for a ban on glyphosate being used by the public.
