Reactions of Solanaceous Species to Pseudocercospora fuligena, the Causal Agent of Tomato Black Leaf Mold. T. Wang, Department of Plant Pathology, National Chunghsing University. G. L. Hartman, Asian Vegeta-ble Research and Development Center (AVRDC); W. H. Hsieh, Department of Plant Pathology, National Chunghsing University,\Taichung, Taiwan; and L. L. Black, AVRDC, P. O. Box 42, Shanhua, Tainan, Taiwan, Republic of China. Plant Dis. 79:661-665. Accepted for publication 3 April 1995. Copyright 1995 The American Phytopathological Society. DOI: 10.1094/PD-79-0661.

A total of 137 accessions representing 26 species and five genera of solanaceous plants were inoculated with Pseudocercospora fuligena, the causal agent of tomato black leaf mold, under controlled conditions (growth room) and in the field. Twenty of 26 species developed symp-toms after inoculation under controlled conditions. Black nightshade (Solatium nigrum) developed symptoms when inoculated under controlled conditions, but not in the field. Ground cherry (Physalis sp), five Irish potato (Solarium tuberosum) cultivars, and eight tobacco (Nicotiana tabacum) lines remained symptomless following inoculation both under controlled conditions and in the field. Of 40 pepper accessions representing four species of Capsicum tested under controlled conditions, 32 developed lesions and eight were symptomless. Of 33 eggplant (Solarium melongena) accessions and related species representing seven Solarium spp. tested under controlled conditions, 24 developed symptoms and nine were symptomless. Two commercial eggplant cultivars, Pingtung Long and Farmers Long, were highly susceptible under controlled conditions and in the field. Among 46 Lycopersicon accessions representing 10 species that were evaluated, accessions of L. esculentum were the most susceptible and acces-sions of L hirsutum were the most resistant. Five Lycopersicon spp., three Solanum spp., and four Capsicum spp. are reported as new hosts of P. fuligena.