View image in fullscreenA gum tree amid a field of canola at Oxton Park near the New South Wales town of Harden, 350 km south-west of Sydney, Australia.ShareView image in fullscreenCanola flowers in bloom.ShareView image in fullscreenOxton Park is a family-run business growing wheat, canola and triticale. ShareView image in fullscreenThe brilliant yellow fields of canola are a major drawcard for regional tourism.ShareView image in fullscreenAn aerial view of Oxton Park.ShareView image in fullscreenMilder winter temperatures have generally helped limit