Form 5a - ICP Forests

The following sources of information provide information for the field observers to
facilitate the diagnosis:
Tables A2-3 – A2-11 contain the coding system for damaging agents. Especially
the sheets on insects and fungi provide information about specific symptoms
caused by a selection of relevant organisms.
http://www.icp-forests.org/WGbiotic.htm >> click on Annex 3, provides
codes for the scientific names of causal agents.
http://www.icp-forests.org/WGbiotic.htm >> click on Annex 4, provides
examples, descriptions and photographs of damage caused by important
categories of insects and fungi.
http://www.icp-forests.org/WGbiotic.htm >> click on Annex 5, provides a key
with symptoms linked to frequently occurring damage causes. However keep in
mind that these are possible damage causes, other factors may cause similar
symptoms. Diagnosis should always be confirmed by an expert phytopathologist
whenever possible.
(37) Extent classes D_EXTENT
(Chapter 2, 9)
The damage extent will be reported in the following classes:
Class
Code
0 % 0
1 – 10 % 1
11 – 20 % 2
21- 40 % 3
41 – 60 % 4
61 – 80 % 5
81 – 99 % 6
100 % 7
(38) Sample number as tree species and leaves type D_LEAVES_TYPE
(Chapter 4)
Tree species see explanatory item (20).
The definition of Leaves type:
Leaves type 0 = current = needle set 1
Leaves type 1 = current+1 = needle set 2
Leaves type 2 = older than current + 1
Leaves type 3 = older than current (e.g. for Qu. ilex)
Page 96 / 151