(AP) — This photo provided by the University of Maine Cooperative Extension shows a fly trap by blueberries.
Maine’s wild blueberry growers are monitoring their fields for a harmful new fruit fly that arrived in the U.S. five years ago and poses a threat to the state’s crop. With the blueberry harvest set to kick into gear later this week, growers have been watching out for the tiny spotted-wing drosophila. (AP Photo/University of Maine Cooperative Extension)