Additions to the Host Range of Fusarium oxysporum f. sp. radicis-lycopersici

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Abstract
Forty-seven species and 11 varieties within five of those species from 15 botanical families were inoculated by a root-dip technique with four isolates of Fusarium oxysporum f. sp. radicis-lycopersici. Random sections from roots and crowns of symptomless plants and root and crown sections displaying lesions from infected plants were surface-sterilized and placed on Komada''s Fusarium-selective medium. Colonies formed on the selective medium were identified as F. o. f. sp. radicis-lycopersici with the use of a tomato seedling on water agar. Thirty-seven of the 53 plant species and varieties were infected by at least one of the four F. o. f. sp. radicis-lycopersici isolates. Highly susceptible species, including Lycopersicon esculentum, were observed from the Solanaceae, Leguminosae, and Chenopodiaceae. Several symptomless hosts were identified.