This comprehensive reference guide identifies and solves thousands of landscape problems in a moment's glance--whether it is a disease, insect pest, animal pest, or maybe a nutrient deficiency.
Rodale's Landscape Problem Solver - A Plant by Plant Guide by Jeff and Liz Ball (Rodale Press 1989) (635.9). This is a reference guide to help quickly and easily recognize, diagnose, and solve landscape problems whether cause by pests, nutritional deficiencies, or diseases. My rating; 7/10, finished 2002.