61. Poročilo o preskusu št.: LVG 2019-195 : opis vzorca: Pinus mugo, listi : namen testiranja: sum na: Lecanosticta acicolaAna Brglez, Zina Devetak, Barbara Piškur, 2019, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, Pinus, rdeča pegavost borovih iglic, rjavenje borovih iglic, Scirrhia, Lecanosticta acicola, Dothistroma pini, Dothistroma septosporum, Cyclaneusma Published in DiRROS: 26.11.2019; Views: 2315; Downloads: 109 This document has many files! More... |
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63. Poročilo o preskusu št.: LVG 2019-118 : opis vzorca: LVG2019/00341: Fagus sylvatica, veja (z listi ali brez) ali poganjki, LVG2019/00342: Acer pseudoplatanus, veja (z listi ali brez) ali poganjki : namen testiranja: LVG2019/00341: sum na: Gliva, LVG2019/00342: sum na: GlivaNikica Ogris, Barbara Piškur, Zina Devetak, Špela Jagodic, Ana Brglez, 2019, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, bukev, Fagus sylvatica, bukov rak, Neonectria ditissima, Nectria ditissima, Neonectria coccinea, gorski javor, Acer pseudoplatanus, Rhytisma acerinum, javorova katranasta pegavost, toča Published in DiRROS: 17.10.2019; Views: 2168; Downloads: 113 This document has many files! More... |
64. Poročilo o preskusu št.: LVG 2019-117 : opis vzorca: 11025597: Juglans regia, les, lubje, sekanci, 11025580: Juglans regia, les, lubje, sekanci : namen testiranja: sum na: Geosmithia morbidaBarbara Piškur, Zina Devetak, Špela Jagodic, Nikica Ogris, Ana Brglez, 2019, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, oreh, Juglans, bolezen tisočerih rakov, Geosmithia morbida, orehov vejni lubadar, Pityophthorus juglandis Published in DiRROS: 17.10.2019; Views: 2088; Downloads: 179 This document has many files! More... |
65. Poročilo o preskusu št.: LVG 2019-116 : opis vzorca: Juglans regia, veja (z listi ali brez) ali poganjki, št. enot 1 : namen testiranja: sum na: Geosmithia morbidaBarbara Piškur, Zina Devetak, Špela Jagodic, Nikica Ogris, Ana Brglez, 2019, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, oreh, Juglans, bolezen tisočerih rakov, Geosmithia morbida, orehov vejni lubadar, Pityophthorus juglandis Published in DiRROS: 17.10.2019; Views: 2015; Downloads: 150 This document has many files! More... |
66. Poročilo o preskusu št.: LVG 2019-115 : opis vzorca: Juglans regia, les, lubje, sekanci, št. enot 1 : namen testiranja: sum na: Geosmithia morbidaBarbara Piškur, Zina Devetak, Špela Jagodic, Nikica Ogris, Ana Brglez, 2019, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, oreh, Juglans, bolezen tisočerih rakov, Geosmithia morbida, orehov vejni lubadar, Pityophthorus juglandis Published in DiRROS: 17.10.2019; Views: 1966; Downloads: 143 This document has many files! More... |
67. Situation of Armillaria spp. and Heterobasidion spp. in SloveniaAna Brglez, Nikica Ogris, 2019, original scientific article Abstract: Species of the genus Armillaria and Heterobasidion are among the most common causes of stem and root rot in Slovenia. Armillaria spp. infects deciduous and coniferous trees, while Heterobasidion spp. mainly threatens Norway spruce (Picea abies), pines (Pinus spp.), and silver fir (Abies alba). On the basis of the data about the sanitary felling of infected trees, we estimated the current state and calculated the proportions represented in total felling, total sanitary felling, total sanitary felling due to diseases, in wood stock, and in increments from 2013 to 2017. Since 2014, there has been a constant increase in the sanitary felling of deciduous and coniferous trees due to infections with Armillaria spp. In 2017, 32,849 m3 of timber were harvested due to Armillaria spp. Given the present situation, we assume that the amount of sanitary felling will continue to increase, but it will not account for large shares in wood stock or increment (< 1 %). In 2017, sanitary felling of infected conifers represented 27.6 % of all sanitary felling due to diseases. In the case of deciduous trees, the share was lower, i.e. 7.1 %. Armillaria spp. was the main cause of sanitary felling due to disease (51.9 %) in the Postojna forest management unit (FMU), while elsewhere shares of up to 10 % were recorded. With Heterobasidion spp., the amount of felling is decreasing over the years. In 2017, 33,922 m3 of wood, accounting for 15.7 % of the total sanitary felling due to disease, were felled due to Heterobasidion spp. A comparison of the felling of Norway spruce, silver fir, and Scots pine due to Heterobasidion spp. shows the different proportions of felling within the total sanitary felling due to the diseases. In Norway spruce, it is on average 79.5 %, in silver fir 12.9 %, and in Scots pine 34.3 %. We assume that the volume of timber harvested due to Heterobasidion spp. will gradually decrease over the years due to the lower wood stocks of Norway spruce, which has recently been hit by numerous natural disasters and infestation of bark beetles. However, the incidence will be higher due to climate change affects. Published in DiRROS: 30.08.2019; Views: 3064; Downloads: 1250 Full text (890,13 KB) This document has many files! More... |
68. Pseudodidymella fagi in Slovenia : first report and expansion of host rangeNikica Ogris, Ana Brglez, Barbara Piškur, 2019, original scientific article Abstract: The fungus Pseudodidymella fagi is spreading in Europe and causing leaf blotch of European beech, Fagus sylvatica. Between 2008 and 2017, outbreaks of P. fagi were observed on European beech in Switzerland, Germany (also on F. orientalis), Austria, and Slovakia. In Slovenia, leaf blotch symptoms were first observed on F. sylvatica in 2018. P. fagi was identified as the causal agent of the observed symptoms in Slovenia by morphological examinations together with sequencing of the internal transcribed spacer (ITS) region of the rDNA. This study links the fungus to the expansion of the known distribution of the disease to Slovenia, and based on in vitro pathogenicity trials, also to a new potential host, Quercus petraea. The pathogenicity tests confirmed F. sylvatica and F. orientalis as hosts for P. fagi, but not Castanea sativa, where pathogenicity to F. orientalis was proved for first time in vitro. Although Koch%s postulates could not be proven for C. sativa, it seems to be partially susceptible in vitro because some of the inoculation points developed lesions. Additionally, damage to Carpinus betulus related to P. fagi near heavily infected beech trees was observed in vivo but was not tested in laboratory trials. Based on the results and our observations in the field, it is likely that P. fagi has a wider host range than previously thought and that we might be witnessing host switching. Keywords: Pycnopleiospora fagi, leaf blotch, pathogenicity test, inoculation test, Fagus orientalis, Fagus sylvatica, Quercus petraea, mycopappus-like propagule, Carpinus betulus, host switching Published in DiRROS: 23.08.2019; Views: 2661; Downloads: 1675 Full text (4,90 MB) This document has many files! More... |
69. Poročilo o preskusu št.: LVG 2019-078 : opis vzorca: LVG2019/00310/BP: Larix decidua, listi, LVG2019/00312/BP: Abies alba, listi, LVG2019/00311/BP: Pinus mugo, listi : namen testiranja: sum na: LVG2019/00310/BP: sum na: Meria laricis, LVG2019/00312/BP: sum na: Valsa abietis, LVG2019/00311/BP: sum na: Botrytis cinereaAna Brglez, Andreja Kavčič, Barbara Piškur, 2019, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, Meria laricis, Cyclaneusma, Leucaspis, rilčkarji, Valsa abietis Published in DiRROS: 19.08.2019; Views: 2492; Downloads: 175 This document has many files! More... |
70. Rdeči osip duglazije (Rhabdocline pseudotsugae)Ana Brglez, Nikica Ogris, Barbara Piškur, 2019, professional article Keywords: varstvo gozdov, karantenski organizmi, duglazija, Pseudotsuga menziesii, gliva, Rhabdocline pseudotsugae, rdeči osip duglazije Published in DiRROS: 08.08.2019; Views: 2577; Downloads: 775 Full text (166,78 KB) |