The Lake District National Park Authority is warning that dogs off leads will be shot if they worry livestock.
Peter Thompson, an Ambleside farmer, told BBC News:
“About 70% of people act responsibly and have control over their pets, for which we are very grateful, but the other 30 per cent are behaving ever more irresponsibly.
“There have already been a number of serious sheep worrying cases this year, resulting in dogs being shot.”
Between 1 March and 31 July all dogs must be kept on a two meter lead when near livestock and on private land accessed through rambling rights.