Fusarium Collar Rot and Foliar Blight of Aglaonema in Hawaii. J. Y. UCHIDA, Associate Professor, Department of Plant Pathology, University of Hawaii, Honolulu 96822. M. ARAGAKI, Professor, Department of Plant Pathology, University of Hawaii, Honolulu 96822. Plant Dis. 78:1109-1111. Accepted for publication 23 August 1994. Copyright 1994 The American Phytopathological Society. DOI: 10.1094/PD-78-1109.

A new and destructive collar rot and foliar blight of Aglaonema commutatum in Hawaii was caused by Fusarium subglutinans. Collar rot was typified by chlorosis, wilting of older leaves, lodging of plants, and eventual plant death. Foliar blight started with elliptical dark leaf spots with chlorotic borders that expanded into petioles and stems. Roots were generally unaffected. A. c. var. maculatum was extremely susceptible to infection, whereas cultivars Emerald Beauty and Silver Queen were very tolerant.

Keyword(s): Fusarium moniliforme