Watch out Instacart: Amazon expands Whole Foods delivery service to San Francisco Bay Area

Instacart’s business with Whole Foods’ Bay Area customers is about to take a major hit now that Amazon is rolling out delivery service of its own for Prime members in the region.

Starting Tuesday, the online giant is launching free two-hour delivery from Whole Foods to Amazon (NASDAQ: AMZN) shoppers in San Francisco, parts of the East Bay and south to Cupertino. The Bay Area debut signals an aggressive expansion plan for the Whole Foods delivery service, which launched Prime Now membership drives…