Contact: Laurie Connell (207) 581-2470; David Munson (207) 581-3777ORONO, Maine — Potato wart, a highly contagious fungal disease of potatoes, can not only ruin a potato crop, it can destroy the agricultural value of the soil it infects for decades. So virulent that it has been listed as a threat to the nation’s biosecurity by read more Potato Pathogens and Biosecurity