Early rain may worsen grape oversupply

 South Australian grape growers say the current oversupply of some white grape varieties could be five times worse if early season rains arrive in the coming months.

Many grape growers are considering scaling back their vineyards as it becomes harder to find buyers for their fruit.

Some have already resorted to picking grapes and leaving them on the ground to rot.

Mark McKenzie from Wine Grape Growers Australia says rain will mean good crop levels next season, which could pose a problem with wineries buying fewer grapes.

But he says better soil moisture from any rain will be welcome.

"You don't want a situation where you really are struggling with vine health, I think it's more around understanding which part of their vineyard might struggle to find a market," he said.

The weather bureau says the state's below average rainfall recordings so far this year are likely to continue through April.