COST Action E 52 - vTI - Bund.de

Tab. 4: Percentage of defoliation according to category (average 2005-2007)
Category
Percentage of leaf loss according to category
0-10% (0) 11-25% (1) 26-60% (2) 61-99% (3) 100% (4)
Leaf loss (%) 63.3 30.0 5.2 1.1 -
Tab. 5: Percentage of discoloration according to category (average 2005-2007)
Category
Leaf discolouration
level (%)
Percentage leaf discolouration according to category
0-10% (0) 11-25% (1) 26-60% (2) 61-99% (3) 100% (4)
48.1 38.6 12.0 0.9 0.4
The most problematic pests for beech: (Mikiola fagi Hartig), Librazhd, Kolonja; (Rhynchaenus
fagi L.), Korça, Puka; (Phyllaphis fagi L.), at national level; (Cryptococcus fagisuga Lindinger).
Some the main diseases in beech (Fagus sylvatica): (Nectia dittisima), in all ancient beech woods;
(Phytophthora fagi), Shkodra, Kukës; (Fomes fomentarius), Librazhd (unused areas).
Tab. 6: Level of damage by the main pests (%) according to category for European beech
Category
0-10% (0)
Level of damage
11-20% (1) 21-50% (2) 51-90% (3) 91-100% (4)
I.D. (%)
Beech (F. sylvatica) 61.3 33.2 4.0 1.5 - 13.7
Pests which cause a high level of damage in the leaf are the Tortrix viridana L. 1 %, Saperda
charcharis L. 22% and Ceratostomella ulmi 19%.
Tab. 7: Level of damage by the main diseases in European beech
Level of damage I.D. (%)
Category
0-10% (0) 11-20% (1) 21-50% (2) 51-90% (3) 91-100% (4)
Beech (F. sylvatica) 80.3 16.0 2.2 1.5 - 10.5
The disease causing a high intensity of damage in the leaf species is Cryphonectria parasitica.
Tab. 8: Percentage of damage according to causes in the tree species of broadleaved forests
Type of
damage
Pest Disease
Percentage of damaged trees according to causes
Grazing and
overgrazing
Climatic
factors
Pedology
factors
Fires
Unknown
causes
Leaf 4.3 4.6 1.7 2.3 1.5 2.7 1.2 18.3
Total
(%)
21