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Diplomska naloga je bila del uradnega spremljanja žagovinarjev (Monochamus spp.), vektorjev borove ogorčice, karantenskega organizma, ki povzroča borovo uvelost. Glavni cilj naloge je bil ugotoviti prisotnost in številčnost hroščev iz rodu Monochamus v treh gozdnih sestojih, z različnimi prevladujočimi drevesnimi vrstami (navadna jelka, navadna smreka, rdeči bor) na območju KE Litija. Spremljanje je potekalo od 25. 5. 2018 do 27. 8. 2018 z uporabo križne pasti Crosstrap za suhi ulov in feromonske vabe Galloprotect Pack, saj je bil eden od ciljev naloge, da zagotovimo žive osebke žagovinarjev, ki bodo v uradnem laboratoriju testirani za prisotnost borove ogorčice. Ker omenjena vaba v pasti poleg ciljnih vrst privablja tudi številne druge vrste hroščev, je bil cilj naše naloge tudi analiza ne-ciljnega ulova. Ugotovili smo prisotnost dveh vrst iz rodu Monochamus. V borovem sestoju smo ulovili 51 osebkov vrste M. galloprovincialis, v smrekovem sestoju pa en osebek vrste M. saltuarius. V uradni laboratorij na Kmetijskem inštitutu Slovenije smo uspeli dostaviti 11 živih hroščev, pet jih je bilo testiranih na prisotnost borove ogorčice, vendar karantenskega organizma niso odkrili. V ulovu so prevladovali hrošči iz družine pisancev (Cleridae), ki so predstavljali 53,9 % celotnega ulova. Po številčnosti so jim sledili hrošči iz družine kozličkov (Cerambycidae) s 24,6 %. Od ostalih družin so bile najbolj številčne Monotomidae, Staphylinidae in Nitidulidae. Ulov podlubnikov je bil majhen, saj smo v ulovu našli le 11 osebkov. The diploma thesis was a part of the official monitoring of sawyer beetles (Monochamus spp.), vectors of pine wood nematode (PWN), a quarantine organism that causes pine wilt disease. The main objective of the work was to determine the presence and abundance of beetles of the genus Monochamus in three forest stands, with different dominant tree species (Silver fir, Norway spruce, Scots pine) in the area of Litija forest regional unit. Monitoring was conducted from 25 May 2018 to 27 August 2018. Crosstrap traps with dry collecting cups and Galloprotect Pack pheromone bait were used, as one of the objectives of the work was to provide live specimens of sawyer beetles to be tested in an official laboratory for the presence of PWN. Since the above-mentioned bait attracts many other species of beetles, not just the target species, our aim was also to analyze non-target catches. Two species of the genus Monochamus were detected in our traps. 51 specimens of M. galloprovincialis were caught in the pine stand and one specimen of M. saltuarius was caught in the spruce stand. 11 live Monochamus beetles were delivered to the official laboratory, five of which were tested for the presence of PWN, but the quarantine organism was not detected. The catch was dominated by checkered beetles (Cleridae), accounting for 53.9 % of the total catch. They were followed by longhorn beetles (Cerambycidae) with 24.6 %. Of the other beetle families, the most numerous were Monotomidae, Staphylinidae and Nitidulidae. The catch of bark beetles (Scolytinae) was small, as only 11 specimens were found in the catch. |
