Disease Reaction of Diverse Sources of Lycopersicon to Xanthomonas campestris pv. vesicatoria Pepper Strain Race 2. Vince F. Lawson, Instructor, Department of Horticulture, Iowa State University, Ames 50011. W. L. Summers, Assistant Professor, Department of Horticulture, Iowa State University, Ames 50011. Plant Dis. 68:117-119. Accepted for publication 7 August 1983. Copyright 1984 The American Phytopathological Society. DOI: 10.1094/PD-68-117.

More than 4,000 named varieties and Lycopersicon plant introduction accessions were evaluated for disease reaction to one isolate of Xanthomonas campestris pv. vesicatoria, causal agent of bacterial spot of tomato. None of the accessions displayed a symptomless reaction to spray inoculation, but differences in symptom severity were observed among genotypes. Several lines with high levels of resistance were identified.