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Presented are the most important diseases of trunk, wood and branches in Norway spruce. Annosus root rot of spruce is caused by Heterobasidion parviporum and H. annosum. The two fungi and the differences between them are presented, their anamorph, life cycle and the disease which they cause. The methods of determining the disease presence in the forest are described in detail, as well as silvicultural, chemical and biotic methods of its suppression. Stereum sanguinolentum is the most frequent pathogen of spruce wounds. Fomitopsis pinicola is a typical parasite of overaged and damaged old conifers and broadleaves, but above all it is the dominant saprob in forest. Gloeophyllum odoratum only rarely occurs as a parasite; it lives as saprob mainly in stumps. V prispevku opisujemo najpomembnejše bolezni v deblih, vejah in lesu navadne smreke. Rdečo trohnobo na smreki povzročata smrekov in borov trohnobnež (Heterobasidion parviporum in H. annosum). Opisani sta glivi in razlike med njima, njun anamorf, življenjski krog in bolezen, ki jo povzročata. Podrobno so obravnavani načini za ugotovitev bolezni v sestoju ter gozdno gojitveni, kemični in biotičnimi načini kontrole. Krvaveča slojevka (Stereum sanguinolentum) je najpogostejša zajedavka ran na smreki. Smrekova kresilača (Fomitopsis pinicola) je značilna zajedavka ranjenih starih smrek in prestarelih iglavcev in listavcev, predvsem pa je dominantni saprob v gozdu. Dišeča tramovka (Gloeophyllum odoratum) redko zajeda smreke, živi kot gniloživka predvsem v panjih. |
