Between 1978 and 1990, eight surveys were conducted in southwest Michigan to document the occurrence of Meloidogyne nataliei, the Michigan grape root-knot nematode. The known distribution of M. nataliei is limited to a total of six sections in Antwerp and Porter Townships in Van Buren County, Michigan. In 1984, a M. nataliei regulatory program was initiated by the Michigan Department of Agricul...