A warning is out about vegetables possibly infected with bacteria.

San Miguel Produce Inc. is urging consumers to discard packages of “Cut ‘N Clean Greens” Kale.

The Ohio Department of Agriculture says kale from the California company tested positive for Listeria.

Ten-ounce bags with the expiration date 11/09/2009 and lot code 14398 should be thrown out.

No illnesses have been reported.

A formal recall has not been issued. San Miguel Produce issued the advisory as a safety measure.