Host Range of Dematophora necatrix, the Cause of White Root Rot Disease in Fruit Trees. A. Sztejnberg, Senior Lecturer, Department of Plant Pathology and Microbiology, Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, Israel. Z. Madar, Graduate Research Assistant, Department of Plant Pathology and Microbiology, Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, Israel. Plant Dis. 64:662-664. Copyright 1980 American Phytopathological Society. DOI: 10.1094/PD-64-662.

The host range of Dematophora necatrix was studied in the greenhouse and field. The fungus attacked and killed deciduous trees (apple, pear, plum, almond), olive trees, citrus rootstocks (Citrus aurantium, Troyer citrange), grape rootstocks (Richter-110, Salt Creek), avocado, mango, macadamia, field crops (cotton, alfalfa, bean), and weeds (Prosopis farcta, Amaranthus gracilis). However, Passiflora edulis and all rootstocks of mango, grape, and citrus (except T. citrange) were not killed in the field tests, and persimmon and pecan trees grew in infested soil for more than 4 yr without showing symptoms of the disease.