A summary of shipments shows this September saw the highest pistachio export numbers on record.
About 44 percent of those shipments went to Hong Kong.
China has doubled its imports of pistachios in the past year, and California growers have been planting more trees to keep up with both international and domestic demand.
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The vegetable harvest in Southern California is slowing down because of last week's freezing temperatures.
California ag experts say sustained cold temperatures can shorten harvest days because farmers must wait for plants to thaw out before harvesting.
As a result, vegetables such as leaf lettuce, broccoli and cauliflower may be left in the fields too long.
Farmers in the imperial valley of Southern California say freezes in the region last year wiped out up to half of their vegetable crops.
