Labor leader Mark McGowan is urging West Australians to come together and support the local businesses now more than ever after much of WA had been declared a natural disaster zone.

The recent flooding in the state particularly affected the Swan Valley, with major risk of fruit splitting wiping out thousands of dollars of crops.

Grape growers said berries start to split because they’ve taken on too much water, and some fruits even start to rot among the bunches.

There was high hopes for this year’s vintage, with perfect conditions in the months leading up to harvest.

Much of the region’s vineyards have been affected, and Premier Colin Barnett said grants and loans would be available to affected growers.

Mr McGowan said it’s crucial to ensure an efficient recovery process so no one is left struggling to recover and waiting for support.