This page is devoted to information for identifying and managing abiotic problems. Current links are listed below.
A useful reference for identifying plant damage was developed by Dr. Jim Green, Oregon State University, based on a 1979 module by Dr. Green, Dr. Otis Malloy of WSU, and Dr. Joe Capizzi of Oregon State.
A useful guide with great images for diagnosing nutrient disorders was written by Theo G.L. Aendekerk. 1997. Fertilization Guide for Nursery Crops. Boomteeltpraktijkonderzoek, Boskoop, Netherlands.