NET WORTH: $2.8 billion -7%

LAST YEAR: $3.0 billion

AGE: 89

RESIDENCE: Los Angeles

SOURCE OF WEALTH: Agriculture, real estate

THE MONEY: The octogenarian produce mogul saw wealth decline as majority stake in Dole Food Co. took stock market hit. Downside limited by vast and steady real estate portfolio owned by privately held Castle & Cooke Inc.

BUZZ: Self-made billionaire remains active as he approaches his 90th year. Majority investor in cancer drug developer NovaRx, which is in phase 3 clinical trials. Son, Justin, is chief executive of company. Castle & Cooke owns 98 percent of Lanai in Hawaii, largest privately owned island in America. Got into fight with state government over plans to build wind farm there and threatened to sell the island. Stays healthy by eating vegetarian and fish diet and says he wants to live to 125. Published a book in 2010 about his eating habits. Adopted lifestyle partially as a response to his wife’s death from cancer. Opened wellness complex in Westlake Village in 2006 that includes a Four Seasons Hotel & Spa, the California Health & Longevity Institute, a teaching center and TV studio. Dole’s 2009 IPO helped pay down center’s debt. Funded 350-acre research campus near Charlotte, N.C., that features huge health research laboratory. Has 14,000-square-foot home on 137 acres near lab.