(AP) - BIG CHILL: Growers across California have been trying to protect the state's prized $2 billion a year citrus industry and other key crops like lettuce and avocados from the cold snap that engulfed the state this week.
PROPS: Citrus farmers use irrigation and wind machines to propel warm air through the fields and raise the temperature those critical degrees after nightfall. Farmers are on the lookout once temperatures drop to 28 degrees.
RESULTS: So far, no major citrus damage has been reported but some is likely in especially cold pockets in the Central Valley. Any losses most likely won't be known for several weeks. California is the country's biggest supplier of fresh-market oranges.
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