A Toothpick Method for Mating Leptosphaeria maculans, the Causal Agent of Blackleg of Crucifers. Alemu Mengistu, Department of Plant Pathology, University of Wisconsin–Madison 53706; Curt B. Hill, 1190 A Rt. 19, Leeburg, GA 31763; and Paul H. Williams, Department of Plant Pathology, University of Wisconsin–Madison 53706. Plant Dis. 79:755-756. Copyright 1995 American Phytopathological Society. DOI: 10.1094/PD-79-755.