Wawona Packing Co. is recalling peaches, plums, nectarines and pluots because of potential contamination. (Larry Crowe/AP)

Summer is the season for plums, peaches, nectarines and pluots. But a lot of people might miss out on that fleshy stone fruit this summer.

Wawona Packing Co., of Cutler, Calif., announced that it is voluntarily recalling all of it stone fruit that was packed and supplied to grocery stores between June 1 and July 12, due to potential contamination with Listeria monocytogenes. Wawona provides fruit to Trader Joe's, Costco, Walmart, Ralph's and Food4less; people who shop at these stores should check to see if they have bought the recalled fruit, the company said in a statement.

Another grocer, Wegman's, has issued a related recall of baked goods that may have been prepared using Wawona-packed fruit.

The fruit recall is nationwide, the Food and Drug Administration said.

The company said that routine testing showed potential Listeria contamination, which could cause the infection listeriosis. According to the Centers for Disease Control and Prevention, listeriosis strikes hardest at pregnant women and their newborns; older adults; and people with weakened immune systems. Pregnant women usually experience fever, while others experience headache, stiff neck, confusion, loss of balance and convulsions, in addition to fever and muscle aches, according to the CDC.

"We are aware of no illnesses related to the consumption of these products," Wawona president Brent Smittcamp said. "By taking the precautionary step of recalling product, we will minimize even the slightest risk to public health, and that is our priority."

Since finding the contamination, Wawona has shut down the implicated packing lines, retrofitted equipment, sanitized the facility and retested, the company said. Subsequent daily test results have been negative.