Bark Beetle Fauna (Coleoptera: Curculıonıdae: Scolytınae) of the

Conıferous Forests ın Eastern Black Sea Regıon of Turkey

Temel Gokturk¹*  and  Yasar Aksu²

¹Faculty of Forestry, Artvin Coruh University, Artvin Turkey. E-mail: temel.gokturk@gmail.com

Abstract

Bark beetles are notorious pests of natural and planted forests causing extensive damage. Bark beetles (Coleoptera: Curculionidae: Scolytinae) cause economically damage every year in coniferous forests of the Eastern Black Sea Region of Turkey. Oriental spruce, Picea orientalis (L.) is one of the main tree species that naturally grows in the Eastern Black Sea Region part of Turkey.  Others tree species are Pinus silvestris (L.), Abies nordmanniana (Stev.). Most bark beetles prefer dead, dying, or weakened trees as their breeding material and are referred to as secondary insects, but they can become primary pests under outbreak conditıons. Since the beginning of the epidemic about 30 years ago, over 2,5 million cubic meters in coniferous forests individuals have been lost.  

This study was conducted to determine bark beetle species in the coniferous forests of Eastern Black Sea Region of Turkey are determined between 2010-2014. During five years which studies were conducted, surveying studies were made. For this aim, trees weakened by other insects or drought, cutting remaining and storage woods and also trap trees were checked.

As a result of this study, A total of 20  species were collected. These species; Hylurgops palliatus (Gyllenhal), Hylastes cunicularius (Erichson), Tomicus minor (Hartig),  Tomicus piniperda (Linnaeus), Dendroctonus micans (Kugelann), Scolytus scolytus (Fabricius Pityogenes bidentatus (Herbst), Pityogenes bistridentatus (Eichhoff), Pityokteines spinidens (Reitter), Pityokteines curvidens (Germ.), Orthotomicus erosus (Wollaston), Orthotomicus proximus (Eichhoff), Ips acuminatus (Gyllenhal), Ips sexdentatus (Boerner), Ips typographus (Linnaeus), Ips duplicatus (Sahlberg), Ips cembrae (Heer), Ips amitinus (Eichhoff),  Xyleborus dispar (Fabricius), Xyloterus lineatus (Olivier). Among these species especially Ips typographus (L.),  Ips sexdentatus (Boerner), Dendroctonus micans (Kugel) and Pityokteines curvidens (Germar) are the most common. Size of these bark beetles population was tried to kept under control using mechanical control biotechnologycal control and biological control.

Keywords: Bark Beetles, Eastern Black Sea Region, the coniferous forest

Yayın yeri: Göktürk, T.; Aksu, Y.; International Conference. Bark Beetle Fauna (Coleoptera:Curculıonıdae: Scolytınae) of the Conıferous Forests ın Eastern Black Sea Regıon of Turkey. Iv. Javakhishvili Tbilisi State University Faculty of Exact & Natural Sciences Department of Geography Institute of Applied Ecology, Fens,Tsu. 7-10 May, 2015, sayfa 234-240. Tbilisi-Batumi