State and federal agricultural officials are partially lifting a quarantine imposed for a moth that's eating grapes in Northern California's wine country.

California Agriculture Secretary Karen Moss said Friday that authorities had lifted the quarantine for the European grape moth in about 240 square miles in Solano, Napa and Sonoma County.

Another 446 square miles in Sonoma and Napa counties remain under quarantine.

The moth comes from Italy and eats grapes and some other crops. Agriculture authorities first spotted the bug in Northern California in 2010.

They imposed the quarantine to help protect the state's roughly $7 billion grape crop.

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