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About phytopathological and histological aspects of Norway spruce dieback in the Orlické hory Mts.
spruce decline Gremmeniella abietina Ascocalyx abietina Sirococcus strobilinus NOx
2015/2/6
The condition was evaluated of tissues of declining young spruce stands in selected localities of the Orlické hory Mts. It refers to stands occurring in top parts affected by an air pollution disaster...
Contribution to the knowledge of development and harmfulness of imported willow leaf beetle (Plagiodera versicolora) (Coleoptera, Chrysomelidae)
Plagiodera versicolora Chrysomelidae occurrence development fecundity enemies economic importance
2015/2/6
The paper deals with the occurrence, development and harmfulness of imported willow leaf beetle (Plagiodera versicolora Laich.) in riparian and accompanying stands of the Svratka and Svitava rivers in...
Can artificial wounding of beech stems induce necroses?
Fagus sylvatica L. mechanical wounds of stems induction of necroses Central Slovakia
2015/2/6
The paper presents data on the induction of necroses after small injuries to beech stems caused by electrodes during measuring cambium electric resistance. Altogether 121 beech stems of tree class 1–3...
Damage by deer barking and browsing and subsequent rots in Norway spruce stands of Forest Range MoP.
bark stripping browsing rot Stereum sanguinolentum red deer financial loss
2015/2/2
The paper deals with the determination of the rate of damage by deer barking and browsing, the subsequent rot caused by Stereum sanguinolentum and the rate of its progress, elucidates causes of damage...
Dead wood and mycoflora in Nature Reserve Polom, Protected Landscape Area Železné hory
dead wood wood decomposition mycoflora wood-decaying fungi
2015/2/2
Activity of fungi participating in the dead wood decomposition was studied in the Velky Polom Nature Reserve, Protected Landscape Area Železné hory. Two game-proof fences of an area of 0.30 ha (5...
Picea pungens Engelm. – a new host of Dothistroma needle blight Mycosphaerella pini E. Rostrup detected in the Czech Republic
Dothistroma needle blight Mycosphaerella pini Picea pungens quarantine pests
2015/2/2
Dothistroma needle blight Mycosphaerella pini is an important pathogen of pine needles. In addition to different species of pine, M. pini was found in blue spruce Picea pungens in the proximity of inf...
Dothistroma needle blight Mycosphaerella pini E. Rostrup, a new quarantine pathogen of pines in the CR
Dothistroma needle blight Mycosphaerella pini Dothistroma septospora Pinus needle cast quarantine pests Picea pungens
2015/2/2
Dothistroma needle blight caused by Mycosphaerella pini E. Rostrup was observed for the first time in the Czech Republic on an imported Pinus nigra Arnold in 1999. In 2000, it was also found in the op...
Larch crown diseases in Trentino and South Tyrol
Larix decidua Mycosphaerella laricina Meria laricis Hypodermella laricis Lachnellula wilkommii
2015/2/2
Various attacks of pathogenic fungi on the larch crown were observed in Trentino/South Tyrol, Italy, over the past few years. In 1999, severe defoliation was caused by Mycosphaerella laricina, a rarel...
Progress of spreading Stereum sanguinolentum (Alb. et Schw.: Fr.) Fr. wound rot and its impact on the stability of spruce stands
Stereum sanguinolentum bark stripping stand stability Norway spruce
2015/2/2
In 2002–2003, we conducted a detailed inventory of bark stripping damage in Forest District (FD) Mořkov (Forest Enterprise Frydek-Místek) and in Forest Range (FR) Proklest (Training Forest Enterp...
Necrotic disease of beech in individual growth stages
Fagus sylvatica L. bark necrotic disease growth stages of beech Slovakia
2015/2/2
The paper deals with the present state of necrotic disease of beech in the growth stages of self-seeding, advance growth, thicket, small pole stage, pole stage and maturing stand from four localities ...
Occurrence, development and natural enemies of cecidogenous generations of Pemphigus gairi Stroyan (Sternorrhyncha, Pemphigidae)
Pemphigus gairi Populus spp. occurrence development galls enemies Anthocoris minki importance
2015/2/2
The paper deals with the occurrence, development and natural enemies of the cecidogenous aphid Pemphigus gairi Stroyan (Pemphigidae). The aphid abundantly occurred on leaves of Populus nigra and P. ni...
Ecological aspects of dispersion of gall mites in the vertical profile of the birch crown
Acalitus rudis Phyllocoptes lionotus tree crown dispersion ecology
2015/2/2
In stands of birch Betula pendula Roth in the eastern Krušné hory Mts. the occurrence of the gall mites Acalitus rudis Canestrini and Phyllocoptes lionotus Nalepa was studied in terms of their di...
Development of necrotic disease and health condition of trees of selective quality in a systematically tended beech pole-stage stand
beech pole-stage stand thinnings Central Slovakia
2015/1/29
We compare the results of observations of bark necrotic disease and defoliation of beech assimilatory organs carried out in 1996 and 2000. A systematically managed, 53-year old beech pole-stage stand ...
Root decays as a potential predisposition factor of a bark beetle disaster in the Šumava Mts.
Armillaria bark beetle Ips typographus
2015/1/29
Root decay infection and potential relations to Ips typographus L. outbreaks in the Šumava Mts. (Bohemian Forest) were monitored in 3 permanent sample plots. As an originator of root decays honey...
The role of root system in silver birch (Betula pendula Roth) dieback in the air-polluted area of Krušné hory Mts
Betula pendula Roth root system air pollution
2015/1/29
120 root systems and trunks of 20 years old birch trees and 60 root systems and trunks of 15 years old birch trees affected by defoliation and with no visual symptoms of damage were analyzed in the ai...