Rjavenje borovih iglic - primer ukrepanja v Soški dolini

Gozdarski inštitut Slovenije je v letih 2015 do 2018 na več lokacijah v Soški dolini potrdil prisotnost glive Lecanosticta acicola, ki povzroča bolezen rjavenje borovih iglic, tudi na črnem boru (Pinus nigra), kar je glede na dosedanje raziskave te glive v Evropi redkost. Glede na rezultate raziskav in opažanja na terenu je populacija glive na črnem boru najverjetneje zelo patogena in bi lahko ogrozila naravne sestoje črnega bora v Sloveniji. V primerjavi z drugimi populacijami te glive v Sloveniji sklepamo, da je zaenkrat geografsko izolirana populacija glive na črnem boru. Zato je bila leta 2018 sprejeta odločitev, da se v Zgornjem Posočju izvedejo ukrepi za omejevanje širjenja glive. Pred decembrom 2019 je bila gliva uvrščena na seznam II.A.I Direktive Sveta 2000/29/ ES kot Scirrhia acicola. Z novo zakonodajo EU s področja zdravstvenega varstva rastlin je gliva L. acicola uvrščena na sezname nadzorovanih nekarantenskih škodljivih organizmov. Uprava za varno hrano, veterinarstvo in varstvo rastlin (UVHVVR), Gozdarski inštitut Slovenije in Zavod za gozdove Slovenije so pripravili načrt ukrepanja, ki ga je potrdil direktor UVHVVR. Ukrepanje v gozdnem prostoru je potekalo konec leta 2019 in v prvi polovici leta 2020. Slovenian Forestry Institute confirmed the presence of the fungus Lecanosticta acicola on multiple locations in the Soča Valley several times between 2015 and 2018 on black pine (Pinus nigra). Lecanosticta acicola causes the disease called brown-spot needle blight on different pine species. However, it rarely affects black pine in Europe. The results of field research and observations showed that population of L. acicola on the black pine is most likely very pathogenic and could endanger the natural stands of black pine in Slovenia. The current population in Soča Valley is geographically isolated and has been shown to be more pathogenic in comparison with other fungus population. In 2018 a decision has been made to take measures to limit the spread of the fungus in the Upper Soča Valley. Until December 2019, the fungus was included in the Annex II.A.I of the Council Directive 2000/29/EC as Scirrhia acicola. New EU plant health legislation has included L. acicola on the list of regulated non-quarantine pests. Therefore, the Administration for Food Safety, Veterinary Sector and Plant Protection (UVHVVR), the Slovenian Forestry Institute and the Slovenia Forest Service have prepared an action plan, which has been approved by the UVHVVR director. Measures in the forest area took place at the end of 2019 and in the first half of 2020.