Scoring system adopted by ICP forests to identify the part of the trees affected by symptoms and signs of biotic and abiotic origin. (Eichhorn and Roskams, 2013)
Link to this table.

Affected part Specification of affected part Code location in crown Code
Class 1: Exploratory phase Apical shoots and upper side buds form long shoots Flat, longitudinal expansive shoot development
Class 2: Intermediary Intermediary between class 1 and class 3
Class 3: Degeneration phase Only apical bud forms a long shoot. Shoots of side buds are stunted. Spear-shaped development of main shoots and reduced side shoot formation
Class 4: Intermediary Intermediary between class 3 and 5
Class 5: Stagnation phase Stunted long shoots Claw-like appearance because of pluriannual short shoot chains
Class 6: Intermediary Intermediary between class 5 and class 7
Class 7: Resignation phase Die-back of twigs of the topmost part of the crown or even the whole crown itself
Class 8: Regeneration phase Phase with obvious regeneration From worse phase to a better form on the same branch