Phytophthora Stem Rot of Aphelandra squarrosa. A. R. Chase, Assistant Professor of Plant Pathology, Agricultural Research Center, Apopka, FL 32703. Plant Dis. 65:921-922. Accepted for publication 19 August 1981. Copyright 1981 American Phytopathological Society. DOI: 10.1094/PD-65-921.

Phytophthora parasitica was isolated from Aphelandra squarrosa cv. Dania showing symptoms of wilt, vascular necrosis, stem rot, and collapse. Wounded and unwounded Aphelandra and Saintpaulia ionantha (African violet) inoculated with the fungus showed typical symptoms of Aphelandra collapse; P. parasitica was reisolated from both plants.