DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 7-8/2012 str. 32 <-- 32 --> PDF |
Interferences in normal photosynthesis due to needle shedding have further physiologically deteriorated a tree and it was exposed to attacks of the bark beetle species of Tomicus destruens. It followed by tree diebacks with occurrence of some other species of xylobiont insects (weevils, longhorn beetles). So far it is not possible to determine the scope of impact of wood pathogenic nematodes in the chain of pine dieback without further studies. The first results indicate the presence of several species: Bursaphelenchus mucronatus, B. sexdentati, B. eggersi, of which the two first ones are considered as pathogenic. In addition, nematode vector Monochamus galloprovincialis has been determined which may play an important role in possible occurrence of quarantine species of Bursaphelenchus xylophilus. Key words: Tomicus destruens, Monochamus galloprovincialis, Thaumetopoea pityocampa, Bursaphelenchus spp., micoses of needles |