San Francisco ? A division of Dole Food Co. issued an international recall of bagged salad Monday after a sample taken from a store in Canada tested positive for E. coli, the company said.

There have been no reports of illness, company officials said.

The voluntary recall affects all packages of Dole’s Hearts Delight salad mix sold in the United States and Canada with a “best if used by” date of September 19, 2007, and a production code of “A24924A” or “A24924B,” Dole said.

The product was sold in Ontario, Quebec and the Maritime Provinces in Canada and in Illinois, Indiana, Maine, Michigan, Mississippi, New York, Ohio, Pennsylvania and Tennessee starting around Sept. 8, said Marty Ordman, a Dole spokesman. The product may have been available in other U.S. states wholesalers distributed to, Ordman said.

The romaine, green leaf and butter lettuce hearts that went into the blend were grown in California, Colorado and Ohio, then processed at Dole’s plant in Springfield, Ohio, on Sept. 6, according to Ordman.