A pest that caused $6 million in damage to Prince Edward Island potato crops last year is spreading. The wireworm is a type of click beetle. It used to be found only in isolated areas, but now it’s showing up across the Island, the P.E.I. Potato Board said. The worm makes holes in potatoes and other crops, making them unfit for sale fresh or processed. The potato board surveyed growers about wireworm to find out more about its impact. More