Crop losses from SA fire reach $24m

South Australian farmers hit by the bushfire north of Adelaide have lost crops worth about $24 million.

Unharvested wheat crops bore the brunt of last month's blaze, with more than 22,000 hectares destroyed, worth at least $15 million, Primary Industries SA said.

More than 30,000 tonnes of hay, worth about $8 million, was also lost.

The bushfire claimed two lives, destroyed close to 500 buildings and burnt through about 82,000 hectares in late November.