Abstract
Bigflower vetch (Vicia grandiflora var. kitaibeliana) is a winter-annual legume developed for use in pastures and as a winter cover crop in specialized situations. During evaluation in a rotation experiment in Connecticut, bigflower vetch became severely diseased by a foliar blight. Symptoms consisted of reddish brown spots with tan centers on leaves. Spots were oval and often coalesced to form larger blotches. A fungus identified as Ascochyta fabae was isolated from diseased tissues, and this fungus induced leaf spots plus necrosis of stems, petioles, and tendrils on bigflower vetch by artificial inoculation. The fungus caused leaf spots (<2 mm in diameter) on V. faba. V. hirsuta, and V. tenuifolia, minor leaf flecking on four other legume species, and no symptoms on 54 other species [...]
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