TEMPE, Ariz. (AP) -- Hundreds of student volunteers are planning to fan out across the Tempe campus of Arizona State University this week and next to harvest about six tons of oranges.

The 200-member campus harvest team is plucking the oranges from 265 Seville orange trees Tuesday and Wednesday and again on Feb. 12.

The sour-tasting Seville oranges are regarded by many as inedible but can be used in marmalade, marinades, salad dressings and drink mixes.

Spoiled oranges unsuitable for the kitchen will be used for compost.

The effort is meant to promote sustainable and local produce.

The Royal Palms Resort, the Tempe Farmer's Market, Whole Foods and other businesses have agreed to buy some of the harvest. Some of the oranges also will be sold to Northern Arizona University's food service program.

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