Symptoms and specification table

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