Spread of Eurasian watermilfoil in Minnesota from 1987 to 1992 (Exotic Species Program 1993). By 1992 Eurasian watermilfoil had spread to over 60 waterbodies, most in the central core of the Twin Cities metropolitan area. By 1996, Eurasian watermilfoil was present in 2 more counties and nearly 80 waterbodies (Exotic Species Program 1996).