Sarah E. Walker, Tim S. Schubert. 1997. Assessing plant problems in cropping systems: A systematic approach. Plant Pathology Circular No. 381, 6 pages. Florida Department of Agriculture and Consumer Services, Division of Plant Industry.

Keywords: defining the problem, check for patterns and delineate time-development, refine the diagnosis, check references and perform laboratory analysis, synthesize the diagnosis, plant problem diagnostic flow charts