broj: 7-8/2020
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| RIJEČ UREDNIŠTVA | ||
| Uredništvo | ||
| Parafiscal levies – definition and who should pay them pdf HR EN | 337 | |
| IZVORNI ZNANSTVENI ČLANCI | ||
| Milan Pernek, Marta Kovač, Nikola Lacković | UDK 630* 453 (001) https://doi.org/10.31298/sl.144.7-8.1 | |
| Testing of biological effectiveness of pheromones and traps for catch of mediterranean bark beetle Orthotomicus erosus (Coleoptera, Curculionidae) pdf HR EN | 339 | |
| Summary In the Aleppo pine forests at the Croatian Mediterranean in 2017, a Mediterranean bark beetle (Orthotomicus erosus) appeared in population densities that had not been recorded before and until then was not considered a significant pest in that area. Natural enemies are not able to follow a sudden increase of the bark beetle population, which results in rapid increase of drying trees. As a part of the suppression of the Mediterranean bark beetle in 2018, pheromone traps have been installed in Croatia for monitoring purposes. Although there are multiple options for applying different types of traps and pheromone preparations for the Mediterranean bark beetle, so far the differences in catches of different types of traps and their selectivity have not been investigated. In 2019, 40 pheromone traps were placed in the Forest Park Marjan (Split) on 196 ha of forest area. A pairs of pheromone preparations Pheroprax and Erosowit were compared, a system of three traps (Triplet) with a single flight barrier trap as well as the modified wet flight barrier trap with a regular flight barrier trap. In addition to the average number of catches in pheromone traps, particular attention was given to selectivity. Two predator species Tanasimus formicarius and Temnochila caerulea were found in traps, with T. formicarius in insignificant quantities relative to T. caerulea. The results indicate that Erosowit exhibits significantly higher catches compared to Pheroprax and is significantly more selective. Pheroprax has a very high catches of T. caerulea predators and is not recommended for practical use. The Triplet had only slightly better catches compared to the single flight barrier trap, but also showed slightly better selectivity. The Triplet did not show the expected effect due to the amount of the catch, which was slightly higher than in the single trap, but not significantly in order to recommend their use. The wet flight barrier trap turned out not to be satisfactory as it does not produce significantly higher catches than a regular flight barrier trap, and is twice less selective. Given the additional costs (trap adaptation, fluid that needs to be changed, slower collection), this trap type is not recommended for use. Comparing the results of the catch in 2019, the number of bark beetles was found to be almost 5 times lower than in 2018. Key words: Pinus halepensis; Erosowit; Pheroprax; Taemnochila caerulea; Thanasimus formicarius; climate changes | ||
| Mladen Ognjenović, Tom Levanič, Nenad Potočić, Damir Ugarković, Krunoslav Indir, Ivan Seletković | UDK 630* 425 + 111 (001) https://doi.org/10.31298/sl.144.7-8.2 | |
| Interrelations of various tree vitality indicators and their reaction to climatic conditions on a european beech (Fagus sylvatica L.) plot pdf HR EN | 351 | |
| Simon Lendvai, Jurij Diaci, Dušan Roženbergar | UDK 630* 242 (001) https://doi.org/10.31298/sl.144.7-8.3 | |
| Response of black alder (Alnus glutinosa (L.) Gaertn.) to selective thinning of various intensities: a half-century study in northeastern Slovenia pdf HR EN | 367 | |
| Besim Balić, Ante Seletković, Ahmet Lojo, Aida Ibrahimspahić, Jusuf Musić, Admir Avdagić, Velid Halilović | UDK 630* 516 (001) https://doi.org/10.31298/sl.144.7-8.4 | |
| Model for estimation merchantable wood volume of spruce (Picea abies Karst) in Canton 10, Federation of Bosnia and Herzegovina pdf HR EN | 379 | |
| Hüseyin Ogfuz Çoban, Halis Bereket | UDK 630* 432 (001 https://doi.org/10.31298/sl.144.7-8.5 | |
| Visibility analysis of fire lookout towers protecting the Mediterranean forest ecosystems in Turkey pdf HR EN | 393 | |
| PREGLEDNI ČLANCI | ||
| Željko Španjol, Boris Dorbić, Nikola Vrh, Ivana Gašparović, Ivan Tolić, Milan Vojinović | UDK 630* 187 + 174 https://doi.org/10.31298/sl.144.7-8.6 | |
| Vegetative and dendrological characteristics of Hober forest park in Korčula pdf HR EN | 409 | |