Symptoms and specification as adopted by the ICP Forest (International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (ICP Forests, 2010)).
Link to this table.

Affected part Symptom/sign Code Symptom/sign specification Code
Leaves/needles Partly or totally devoured/missing 01 Holes or partly devoured/missing 31
Notches (leaf/needle margins affected) 32
Totally devoured/missing 33
Skeletonized 34
Mined 35
Premature falling 36
Light green to yellow discoloration 02 Overall 37
Red to brown discoloration (incl. necrosis) 03 Flecking, spots 38
Bronzing 04 Marginal 39
Other color 05 Banding 40
Interveinal 41
Tip, apical 42
Partial 43
Along veins 44
Microfilia (small leaves) 08
Other abnormal size 07
Deformations 08 Curling 45
Bending 46
Rolling 47
Stalk twisting 48
Folding 49
Galls 50
Wilting 51
Other deformations 52
Other symptoms 09
Signs of insects 10 Black coverage on leaves 53
Nest 54
Adults, larvae, nymph, pupae, egg masses 55
Signs of fungi 11 White coverage on leaves 56
Fungal fruiting bodies 57
Other signs 12
Stem/collar Wounds (debarking, cracks, etc.) 17 Debarking 58
Cracks (frost cracks, etc.) 59
Other wounds 60
Resin flow (conifers) 18
Slime flux (broadleaves) 19
Decay/rot 20
Deformations 08 Cankers 62
Tumors 63
Longitundinal ridges (frost ribs, etc.) 68
Other deformations 52
Tilted 21
Fallen (with roots) 22
Broken 13
Necrosis (necrotic parts) 16
Other symptoms 09
Signs of insects 10 Boring holes, boring duct 65
White dots or covers 66
Adults, larvae, nymph, pupae, egg masses 55
Signs of fungi 11 Fungal fruiting bodies 57
Yellow to orange blisters 67
Other signs 12

This page was last edited on 15 July 2015, at 16:29.

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