Frost

Kiwifruit orchard foreman Dave Trafford takes Leah Tebbutt through the vines on the back of the quad bike, where mere metres apart the vines change from luscious and green, to barren as if they've…

Last year, John Douglas lost 70 percent of his vineyard to frost. This season he's out in the nerve-jangling wee hours frost-fighting and watching the temperature drop.

MetService is warning people to brace for plummeting temperatures which are expected to be 4C lower than usual later this week.