Officials in the New Forest have cancelled the traditional August pony roundups, known as drifts, after an outbreak of equine influenza was confirmed among the wild herd.
The virus has produced heavy nasal discharge and dry coughs in affected animals, and approximately 35 ponies have died. Veterinary advice calls for leaving sick ponies in place to minimise stress and prevent further spread of the disease.
Equine influenza is primarily transmitted through airborne droplets but can also spread by direct contact with infected animals, prompting heightened precautions across the forest.
Since the early 1990s the wild pony population has not experienced an outbreak, leaving the current herd without natural immunity. The infection is believed to have been introduced inadvertently by a privately owned animal.
Riders and walkers are urged to keep a wide berth from the ponies and to prevent ridden horses from drinking from communal water troughs.
The public has been asked not to place water buckets in the forest, as natural water sources and existing troughs provide sufficient supply even during prolonged dry periods.
The start of the 2026 drifts has been postponed, and any drifts scheduled from September onward will be reviewed continuously based on the infection’s status.
Organisers of the upcoming New Forest Show have introduced stricter biosecurity measures to mitigate the risk of further transmission.
