The Most Frequent Fungi Occurring in Plantations Larch, Scots Pine and Macedonian Pine on Kopaonik

1989

S. 309-317

3 Abb., 6 Lit. Ang.

Unselbständiges Werk

200052868

In Serbia the study of the most important diseases in coniferous plantations has recently become especially relevant, having in mind the significance of these species, which has been increasing due to the establishment of new plantings in accordance with long-term afforestation program for barrens and deforested areas. The pathogenous fungus Lachnellula willkommii, agent of larch canker, was first observed in Serbia, on the Mountain Kopaonik (locality "Markova stena"). The degree of infection was very high: ca. 48% trees had the disease symptoms, and 6% trees were dry. The apothecia are formed during the summer and usually occur on the dead bark and in the crevices of the canker. In plantations of Scots pine, the pathogenous fungus Gremmeniella abietina was first observed in Serbia. The fruitbodies (pycnidia and apothecia) are formed on stems, shoots, needles, but also and on Scots pine cone scales. The following fungi occur very frequently in coniferous plantations on Kopaonik: Cenangium ferruginosum, Cyclaneusma minus, Lachnellula occidentalis, L. suecica, Lophodermium pinastri, L. seditiosum, Sclerophoma pithyophila, and Therrya fuckelii. The most of these fugi do not have great importance as they occur mainly on dry branches (C. ferruginosum, Lachnellula spp., Therrya fuckelii) or old needles (C. minus, Lophodermium spp. and S. pithyophila).