Botrytis porri on leek in Canada.
Leek cv. Alaska and Furare grown at Laval, Que., in 1984 developed rot during 5 months of storage in conventional and controlled atmosphere systems (2-3% CO2 + 4-8% O2) at 1.5°C. The most characteristic symptoms were pale brown, water-soaked lesions on the adaxial surface of leaves, usually in the blanched areas and the pseudostem. Occasionally, irregular white lesions were noted on the leaves. The pathogen was identified as B. porri, its first report on stored leeks in Canada.