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Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Effect of defoliation by Thaumetopoea pityocampa (Den. & Schiff.) (Lepidoptera: Thaumetopoeidae) on annual diameter increment of Pinus brutia Ten. in Turkey" | Ann. For. Sci. 62 2005 91-94 INRA EDP Sciences 2005 DOI 10.1051 forest 2004095 91 Original article Effect of defoliation by Thaumetopoea pityocampa Den. Schiff. Lepidoptera Thaumetopoeidae on annual diameter increment of Pinus brutia Ten. in Turkey Mehmet KANATa M. Hakki ALMAb Fatih SIVRIKAYAa a Department of Forest Engineering Faculty of Forestry Kahramanmaras Sutcu Imam University 46060 Kahramanmaras Turkey b Department of Industrial Engineering of Forestry Faculty of Forestry Kahramanmaras Sutcu Imam University 46060 Kahramanmaras Turkey Received 13 October 2003 accepted 24 May 2004 Abstract - In this study the influence of defoliation by pine processionary moth Thaumetopoea pityocampa Den. Schiff. Lepidoptera Thaumetopoeidae on the annual diameter increment of Turkish Calabrian pine Pinus brutia Ten. in Kahramanmaras province Turkey was investigated. The study was carried out between 1995 and 1998. During the four years the defoliation of pine processionary moth caused a significant decrease average 21 for four years P 0.05 in the annual diameter increment with respect to control undefoliated trees. Thaumetopoea pityocampa diameter increment Kahramanmaras Turkey Pinus brutia Résumé - Effet des defeuillaisons par Thaumetopoea pityocampa Den. Schiff. sur l accroissement annuel de Pinus brutia Ten. en Turquie. L influence de defeuillaisons par la processionnaire du Pin Thaumetopoea pityocampa sur l accroissement annuel en diamètre de Pinus brutia a été testée dans la province de Kahramanmaras en Turquie. L etude fut conduite de 1995 à 1998. Durant ces 4 années les defeuillaisons ont causé une diminution significative en moyenne 21 pour les 4 ans P 0 05 de l accroissement annuel en diamètre en comparaison avec des témoins non défeuillés. Thaumetopoea pityocampa accroissement en diamètre Kahramanmaras Turquie Pinus brutia 1. INTRODUCTION The pine processionary moth PPM live on the genera Pinus and Cedrus grown in Cyprus Turkey and Middle East and has been known as .
