Frosts can destroy vines and the grape crop. Many growers use water sprinklers to protect their plants when frosts are forecast. When water freezes on the vine it releases latent heat, keeping the growing buds or grape berries at a temperature where damage does not occur. These sprinklers are in the William Hill vineyards, near Alexandra, Central Otago.
Using this item
Otago Daily Times
Reference: 18 October 2006, p. 18
Photograph by Diane Brown
Permission of the Otago Daily Times must be obtained before any re-use of this image.