The effects of the pine processionary moth on the increment of crimean pine trees in Bartin, Turkey
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Tarih
2009-05-18Yazar
Durkaya, Ali
Durkaya, Birsen
Dal, İsmail
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The pine processionary moth (PPM), causing significant damage on pine stands in Turkey, affects
mainly crimean pine stands within the Ulus vicinity. To determine the damage, 20 sample plots of
second site class crimean pine stands were measured; 10 of which were taken as the control sample
and 10 of which were damaged by PPM. In all, 289 trees in the damaged areas and 316 trees in the
control areas were measured. Consequently, it was ascertained that there was a loss of 22% in diameter
increment, 29% at basal area increment, 43% in height, 24.5% at height increment, and 37.5% in volume
increment of damaged trees based on their age (70 years) in comparison with the control trees.