Abstract

Abstract A description is provided for Fusarium oxysporum f. sp. cepae . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Allium cepa L. (onion, shallots), A. sativum L. (garlic) (see notes below concerning F . oxysporum f.sp. garlic), A. fistulosum L. (Japanese bunching onion), A. chinense G . Don (rakkyo); Asparagus (68, 2953); Oxalis spp. (56, 1835). DISEASE: Basal rot of bulbs. Damping off of seedlings. GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Ethiopia, South Africa, Zambia. Australasia: India, Israel, Japan, Philippines, Tasmania. Europe: Greece, Hungary, Italy. North America: USA. South America: Brazil. TRANSMISSION: Via seed, infected planting material or movement of soil. Local dispersal is by slimy micro- and macroconidia moved by water flow and splash droplets.

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