Additions to Host Range of Colletotrichum gloeosporioides f. sp. aeschynomene

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Abstract
The fungus Colletotrichum gloeosporioides f. sp. aeschynomene is currently used as a mycoherbicide to control northern jointvetch (Aeschynomene virginica), a leguminous weed in Arkansas. Seventy-seven species from 43 genera and 10 families were inoculated in greenhouse host range tests. Crop species within the genera Gossypium, Abelmoschus, Cucumis, Cucurbita, Citrullus, Oryza, Zea Triticum, Lycopersicon, Spinacia, Brassica, Raphanus, Helianthus, Lactuca, Daucus, Fragaria, Phaseolus, Glycine, Arachis, and Vigna were immune to C. gloeosporioides. Only Aeschynome virginica was killed by this pathogen. Several species of Aeschynomene, Lathyrus, Lupinus, and Vicia faba and 23 of 26 Pisum sativum cultivars tested were susceptible, and lesions developed on leaflets, petioles, and stems of Lathyrus, Lupinus, Pisum, Vicia faba, and Aeschynomene. The host range in thus larger than originally described.

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