Annellophora Leaf Spot of Date Palm in Texas. S. R. Vann, Graduate Student, Department of Plant Pathology and Microbiology, Texas A&M University and Texas Agricultural Experiment and Extension Stations, College Station 77843. R. A. Taber, Research Scientist, Department of Plant Pathology and Microbiology, Texas A&M University and Texas Agricultural Experiment and Extension Stations, College Station 77843. Plant Dis. 69:903-904. Accepted for publication 14 May 1985. Copyright 1985 The American Phytopathological Society. DOI: 10.1094/PD-69-903.

Distinctive circular brown leaf spots were observed on Phoenix spp. in the Rio Grande Valley of Texas in 1981. Lesions resembled those produced by Cercospora spp.; however, conidia were produced on annellophores rather than on sympodially proliferating conidiophores typical of Cercospora spp. The fungus was identified as Annellophora phoenicis. This report extends the known geographical range of this fungus and establishes its pathogenicity on Phoenix canariensis.