sourceTaxonName: Leptosphaeria maculans
targetTaxonName: Brassica campestris
localityName: Canada
referenceCitation: Petrie, G.A.. 1985. Yield losses in Saskatchewan rapeseed/canola crops from basal stem cankers of blackleg (%Leptosphaeria maculans%) in 1982, with notes on other diseases.. Canad. Pl. Dis. Surv. 65:43-46