An independent advisor is being appointed to try and find out why residents in parts of Bristol are being plagued by flies for the eighth year in a row.
It is not known where the flies in Avonmouth are coming from, and this year the infestation has spread to neighbouring areas, including Severn Beach and Shirehampton.
As people are being told to stay indoors to avoid the spread of coronavirus, they say the flies are making their lives miserable.
The Environment Agency has called the issue "a priority" and stated it and the council hope "that the support of an independent advisor will lend new perspective and broaden our search to find the source(s)."
Many of the affected homes sit alongside heavy industry, and some local people believe that the number of waste processing sites are causing the problem.
More than 4000 residents have signed a petition demanding action.
One mother living in Shirehampton has told ITV News West Country of her constant battle to keep the flies from landing on her infant daughter.
Darren Jones has been the MP for Bristol North West since 2017 and, like the authorities, has been lobbied hard by his constituents to resolve the longstanding issue.