| AN ILLUSTRATED GUIDE TO THE STATE OF HEALTH OF TREES. RECOGNITION AND INTERPRETATION OF SYMPTOMS AND DAMAGE |
subjects: Trees and Forests
levels and types of education: Higher education, Life long learning, Tertiary education Non-formal education
FAO AND DIAGNOSTIC AND ADVISORY SERVICE CABI BIOSCIENCE, ROME, 2003
|English||This guide helps readers to recognize symptoms of ill health, to distinguish these from normal events that signal a temporary decline, and to improve their skills in making the vital preliminary diagnosis. The guide provides 140 photographs of symptoms from more than 50 tree species to be used as a basis for demonstating the effects of pest (biotic) and non-living (abiotic) influences on trees. The guide aims to help people make visual assessments of tree problems and to provide a preliminary diagnosis.
Contact: Forestry Department
Viale delle Terme di Caracalla, 00153