Journal of Forest Science, 2024 (vol. 70), issue 12
The sex ratio of spruce bark beetles – Ips typographus (Coleoptera: Curculionidae: Scolytinae) captured in different types of trapsOriginal Paper
Marie Zahradníková, Jaroslav Dostál, Petr Zahradník
J. For. Sci., 2024, 70(12):603-609 | DOI: 10.17221/55/2024-JFS 
In forest protection, various types of trap systems are used against spruce bark beetles to treat the foci of infested areas. Traditionally, these include pheromone traps, treated trap trees, and recently also the application of Storanet insecticide nets used for the sanitation of infested wood (trees), which also serve as treated trap trees when pheromones are applied, and the Trinet P system, a variation to a treated trap tree – a tripod. On an aluminium tripod, there is a Storanet insecticide net baited with a pheromone dispenser similar to other types of trap systems. The sex ratio proves to be a significant aspect in the assessment of individual...
Cryptostroma corticale and its relationship to other pathogens and pests on Acer pseudoplatanusOriginal Paper
František Lorenc
J. For. Sci., 2024, 70(12):610-618 | DOI: 10.17221/41/2024-JFS
In the present study, 20 sycamore maples (Acer pseudoplatanus L.) were evaluated on eight plots (160 trees) affected by sooty bark disease (SBD), caused by Cryptostroma corticale (Ellis & Everh.) P.H. Greg. & S. Waller in Northern Bohemia, Czech Republic. Mortality and presence of common pest taxa were assessed for each tree. Data were statistically evaluated using frequency and principal component analyses. The presence of C. corticale and Prosthecium pyriforme Jaklitsch & Voglmayr were positively related, with a significantly higher occurrence on dead trees. Rhytisma acerinum (Pers.) Fr. and Aceria...
A GLMER-based pedotransfer function expressing the relationship between total organic carbon and bulk density in forest soilsOriginal Paper
Václav Zouhar, Aleš Kučera, Karel Drápela
J. For. Sci., 2024, 70(12):619-633 | DOI: 10.17221/48/2024-JFS
Owing to its role in mitigating CO2 in the atmosphere, the total organic carbon (TOC) stock of soil, a key component of the terrestrial carbon cycle, is of significant interest as regards climate change. To determine TOC stock, it is first necessary to determine the soil's bulk density (BD), determined through intact soil sampling; however, in forest soils, it can be difficult to determine BD in soils with high levels of stoniness and/or tree root coverage. Furthermore, the method is time-consuming and labour-intensive, making it impractical for studies over large areas. In such cases, BD can be determined using a pedotransfer...
The distribution of Castanea sativa and its ability to regenerate in the Czech RepublicShort Communication
Jaroslav Holuša, Kamil Holý
J. For. Sci., 2024, 70(12):634-637 | DOI: 10.17221/71/2024-JFS
Castanea sativa is a type of cultivated chestnut tree found in the Czech Republic, growing in both lowland and midland regions. These trees are usually planted individually or in pairs, with over half of the plantings located in urban areas. One-fifth of chestnut trees thrive in parks, while chestnut orchards or forest stands make up only one-tenth of the areas where chestnut trees are located. In the Czech Republic, approximately 30 ha are covered by chestnut trees. Regeneration of chestnut trees occurs in only 6% of the localities due to regular lawn mowing. However, 40% of the surveyed forests showed signs of regeneration, demonstrating...