TRESCO olive growers Gary and Isabel Chasney are keen for this year's harvest, which is promising to be one of the biggest in Australian history.

Their haul from the Chasney Estate, near Swan Hill, has already begun and will continue into the winter -- potentially into June -- before frosts hit.

"We're excited to see so many, there's a lot of work," Mr Chasney said.

"There's lots to sell, which...