Artificial intelligence that might use smartphone images could lead to more accurate, early detection of a pest that ruins strawberries, a $300 million dollar-a-year industry in Florida. University of Florida scientists have developed a smartphone app to detect the twospotted spider mite. With quicker detection, the system would let farmers use lower levels of chemicals that might otherwise harm the environment. As it stands, most growers spray regularly, perhaps as often as every week.

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