Alfalfa sprouts products sold in Southern California Gelson’s and Whole Foods Market grocery stores were recalled today by the California Department of Public Health because of possible salmonella contamination.

Mark Horton, director of the CDPH, warned consumers not to eat certain Kowalke Organics’ alfalfa products with sell-by dates between June 18 and June 30. Those products include:

• Kowalke Organics Alfalfa Sprouts – 4 oz, 8 oz, 1-pound and 5-pound packages

• Kowalke Organics Dinner Salad – 6 oz package

• Kowalke Organics Onion Mix – 4 oz package

The Culver City company that operates Kowalke Organics, Mike’s Produce Inc., said it was voluntarily recalling raw alfalfa sprouts products.

Mike Matthews, Kowalke’s owner, told the Associated Press that only one package — with the sell-by date of June 21 — tested positive for salmonella, so far. All the products with that date, Matthews said, have already been taken off store shelves.