It's to deter walkers with dogs from their lands during lambing season.
Farmers are taking action against dog attacks.
The Irish Farmers' Association is putting up 'No Dogs Allowed' posters on farm gates across the country, to deter walkers with dogs from their lands.
Its South Leinster Chair, Laois' Francie Gorman says there's been a significant rise in attacks by dogs on livestock in recent months:
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