VIEW ARTICLE

Letter to the Editor

The Rationale for the Horsfall-Barratt Plant Disease Assessment Scale. T. T. Hebert, Professor emeritus, Department of Plant Pathology, North Carolina State University, Raleigh 27650; Phytopathology 72:1269. Accepted for publication 17 May 1982. Copyright 1982 The American Phytopathological Society. DOI: 10.1094/Phyto-72-1269.