Producer prices post largest gain in 1-1/2 years

(Reuters) - U.S. producer prices recorded their largest increase in 1-1/2 years in April as the cost of food and trade services surged, hinting at inflation pressures in some parts of the economy.

The Labor Department said on Wednesday its seasonally adjusted producer price index for final demand increased 0.6 percent, the biggest gain since September 2012.

Prices received by the nation's farms, factories and refineries rose 0.5 percent in March and last month's increase outpaced economists' expectations for only a 0.2 percent gain.

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