Grade

I_d

Description of damage characteristics

1

0

No damage on growth or stem form

2

1

Minor damage on growth (tree height loss ≤ 10%) or stem form likely with slight scars

3

2

Medium damage on growth (tree height loss between 10% - 30%) or stem form with visible scars or slightly forking shoots

4

3

Heavy damage on growth (tree height loss between 30% - 60%) or stem form with severe scars or forking shoots (upper part)

5

4

Severe damage on growth (tree height loss between > 60%), stem broken and forking (lower part), or dead