411. The effect of Eutypella parasitica on the wood decay of three maple speciesAna Brglez, Barbara Piškur, Miha Humar, Jožica Gričar, Nikica Ogris, 2020, original scientific article Abstract: Eutypella parasitica R.W. Davidson & R.C. Lorenz is the causative agent of Eutypella canker of maple, a destructive disease of maples in Europe and North America. The fungus E. parasitica is known to cause wood stain and decay. However, it is not known how effectively it decomposes the wood of the most widespread maple species in Europe. Wood samples of Acer pseudoplatanus L., A. platanoides L., and A. campestre L. were exposed to four isolates of E. parasitica and nine other fungal species for comparison, according to the modified EN 113 standard. After 15 weeks of incubation, mass loss and microscopical analysis of samples showed evidence of colonization and different wood decay potentials among fungal species. A highly significant positive correlation was found between mass loss and moisture content for all fungal species. Similarly, the measured cell wall thickness correlated well with the calculated mass loss of the samples. On average, the fungal species caused the lowest mass loss in A. pseudoplatanus (10.0%) and the highest in A. campestre (12.6%) samples. Among the samples exposed to E. parasitica isolates, the highest mass loss was recorded in A. pseudoplatanus (6.6%). Statistical analysis showed significant differences in mass loss and moisture content between different E. parasitica isolates. Based on the results of staining, we discuss the type of decay caused by E. parasitica. Although E. parasitica isolates caused smaller mass loss of samples compared to other more effective decay species, we should not disregard its capability of degrading maple wood. Because E. parasitica usually infects the lower portion of the trunk, which is the largest and most valuable part of the tree, any damage can cause significant economic and resource loss. Keywords: wood decay, mass loss, moisture content, mini-block test, decay test, Acer spp., Eutypella parasitica, fungi, light microscopy, scanning electron microscopy Published in DiRROS: 13.07.2020; Views: 1825; Downloads: 1251 Full text (8,28 MB) This document has many files! More... |
412. Poročilo o preskusu št.: LVG 2020-049 : opis vzorca: 11499831: Feromonska vaba, vektor, 11499824: Feromonska vaba, vektor, 11499817: Feromonska vaba, vektor, 11499800: Feromonska vaba, vektor, 11499794: Feromonska vaba, vektor, 11499787: Feromonska vaba, vektor, 11499770: Feromonska vaba, vektor, 11499763: Feromonska vaba, vektor : namen testiranja: sum na: Gibberella circinataNikica Ogris, Andreja Kavčič, Zina Devetak, Špela Jagodic, Barbara Piškur, 2020, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, brov smolasti rak, Fusarium circinatum, Gibberella circinata, žuželke, vektorji, feromonska vaba, kontrolna past, spremljanje, monitoring, bor Published in DiRROS: 16.06.2020; Views: 2143; Downloads: 0 |
413. Poročilo o preskusu št.: LVG 2020-039 : opis vzorca: Pinus, veja (z listi ali brez) ali poganjki : namen testiranja: sum na: Lecanosticta acicolaNikica Ogris, Barbara Piškur, Zina Devetak, Špela Jagodic, 2020, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, rjavenje borovih iglic, rdeča pegavost borovih iglic, Dothistroma, Lecanosticta acicola, bori, Pinus sp. Published in DiRROS: 10.06.2020; Views: 1515; Downloads: 0 |
414. Poročilo o preskusu št.: LVG 2020-041 : opis vzorca: 11499572: Feromonska vaba, vektor, 11499565: Feromonska vaba, vektor, 11499558: Feromonska vaba, vektor, 11499541: Feromonska vaba, vektor, 11499534: Feromonska vaba, vektor, 11499527: Feromonska vaba, vektor, 11499510: Feromonska vaba, vektor, 11499503: Feromonska vaba, vektor : namen testiranja: sum na: Gibberella circinataBarbara Piškur, Maarten De Groot, Špela Jagodic, Zina Devetak, Nikica Ogris, 2020, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, borov smolasti rak, Fusarium circinatum, Gibberella circinata, žuželka, vektor, feromonska vaba, kontrolna past, spremljanje, monitoring, bor Published in DiRROS: 10.06.2020; Views: 1556; Downloads: 0 |
415. Poročilo o preskusu št.: LVG 2020-031 : opis vzorca: 11179252: Pinus nigra, veja (z listi ali brez) ali poganjki, 11179269: Pinus sylvestris, veja (z listi ali brez) ali poganjki : namen testiranja: 11179252: sum na: Fusarium circinatum, 11179269: sum na: Fusarium circinatumNikica Ogris, Barbara Piškur, Špela Jagodic, Zina Devetak, 2020, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, borov smolasti rak, Fusarium circinatum, Gibberella circinata, Pinus nigra, Pinus sylvestris, odmiranje najmlajših borovih poganjkov, Diplodia pinea, rdeči bor, črni bor Published in DiRROS: 26.05.2020; Views: 1491; Downloads: 0 |
416. Poročilo o preskusu št.: LVG 2020-026 : opis vzorca: 11179276: Pinus strobus, les, lubje, sekanci, 11179283: Pinus strobus, veja (z listi ali brez) ali poganjki, 11179900: Pseudotsuga menziesii, les, lubje, sekanci, 11179894: Pseudotsuga menziesii, veja (z listi ali brez) ali poganjki, 11179887: Pinus nigra, veja (z listi ali brez) ali poganjki, 11179870: Pinus nigra, veja (z listi ali brez) ali poganjki, 11179801: Pinus strobus, veja (z listi ali brez) ali poganjki, 11179795: Pinus strobus, veja (z listi ali brez) ali poganjki, 11179825: Pinus strobus, les, lubje, sekanci : namen testiranja: sum na: 11179276: sum na: Fusarium circinatum, 11179283: sum na: Fusarium circinatum, 11179900: sum na: Fusarium circinatum, 11179894: sum na: Fusarium circinatum, 11179887: sum na: Fusarium circinatum, 11179870: sum na: Fusarium circinatum, 11179801: sum na: Fusarium circinatum, 11179795: sum na: Fusarium circinatum, 11179825: sum na: Fusarium circinatumNikica Ogris, Barbara Piškur, Zina Devetak, Špela Jagodic, 2020, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, borov smolasti rak, Fusarium circinatum, Gibberella circinata, Pinus sp., Pseudotsuga menziessii, les Published in DiRROS: 26.05.2020; Views: 1464; Downloads: 0 |
417. Poročilo o preskusu št.: LVG 2020-014 : opis vzorca: 11499213: Feromonska vaba, vektor, 11499220: Feromonska vaba, vektor, 11449237: Feromonska vaba, vektor, 11499244: Feromonska vaba, vektor, 11499251: Feromonska vaba, vektor, 11499268: Feromonska vaba, vektor, 11499275: Feromonska vaba, vektor, 11499282: Feromonska vaba, vektor : namen testiranja: sum na: 11499213: sum na: Gibberella circinata, 11499220: sum na: Gibberella circinata, 11449237: sum na: Gibberella circinata, 11499244: sum na: Gibberella circinata, 11499251: sum na: Gibberella circinata, 11499268: sum na: Gibberella circinata, 11499275: sum na: Gibberella circinata, 11499282: sum na: Gibberella circinataMaarten De Groot, Zina Devetak, Špela Jagodic, Barbara Piškur, 2020, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize Published in DiRROS: 26.05.2020; Views: 1339; Downloads: 0 |
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420. Poročilo o preskusu št.: LVG 2020-032 : opis vzorca: 11499497: Feromonska vaba, vektor, 11499480: Feromonska vaba, vektor, 11499473: Feromonska vaba, vektor, 11499466: Feromonska vaba, vektor, 11499459: Feromonska vaba, vektor, 11499299: Feromonska vaba, vektor, 11499442: Feromonska vaba, vektor, 11499435: Feromonska vaba, vektor : namen testiranja: sum na: 11499497: sum na: Gibberella circinata, 11499480: sum na: Gibberella circinata, 11499473: sum na: Gibberella circinata, 11499466: sum na: Gibberella circinata, 11499459: sum na: Gibberella circinata, 11499299: sum na: Gibberella circinata, 11499442: sum na: Gibberella circinata, 11499435: sum na: Gibberella circinataNikica Ogris, Barbara Piškur, Andreja Kavčič, Zina Devetak, Špela Jagodic, 2020, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, borov smolasti rak, vektorji, Fusarium circinatum, Gibberella circinata, Pinus sp., feromonska vaba, žuželke Published in DiRROS: 26.05.2020; Views: 1764; Downloads: 0 |