Orthotomicus tridentatus Eggers: Distribution and biology in cedar forests of Turkey

Orthotomicus tridentatus Eggers, 1921 (Col.: Curculionidae, Scolytinae) is the most important forest pest of cedar stands in Turkey. Yet, very little is known about its distribution and biology. | Research Article Turk J Agric For 33 (2009) 277-283 © TÜBİTAK doi: Orthotomicus tridentatus Eggers: distribution and biology in cedar forests of Turkey Mustafa AVCI , Oğuzhan SARIKAYA Süleyman Demirel University, Faculty of Forestry, Department of Forest Entomology & Protection, 32260 Isparta - TURKEY Received: Abstract: Orthotomicus tridentatus Eggers, 1921 (Col.: Curculionidae, Scolytinae) is the most important forest pest of cedar stands in Turkey. Yet, very little is known about its distribution and biology. Therefore, the distribution and biological characteristics of O. tridentatus were studied in the Taurus Mountains in southern Turkey between 2006 and 2008. It was determined to be a species common to all cedar forests. The length of adults was between and mm and the main galleries were “S” shaped. O. tridentatus was determined to be a monophagus species for Cedrus libani A. Rich. and as endemic to Turkey. It was observed that the species had 2 generations per year. The first mating season occurred at the end of April and the second during the second half of August. It hibernates as a young adult. Key words: Orthotomicus tridentatus, morphology, biology, trap trees, cedar, Turkey Orthotomicus tridentatus Eggers: Türkiye sedir ormanlarında yayılışı ve biyolojisi Özet: Orthotomicus tridentatus Eggers, 1921 (Col.: Curculionidae, Scolytinae) Türkiye sedir alanlarında zarara neden olan en önemli orman zararlısıdır. Bununla birlikte böceğin yayılışı ve biyolojisi çok az bilinmektedir. Bu nedenle O. tridentatus’un yayılışı ve biyolojisinin belirlenmesi amacıyla 2006-2008 yıllarında Türkiye’nin güneyinde Toros dağlarında çalışılmıştır. Zararlının sedir ormanlarında yaygın olarak bulunduğu görülmüştür. Erginlerin uzunluğu mm arasında olup ana yolları “S” şeklindedir. O. tridentatus Cedrus libani A. Rich.’nin monofag bir zararlısı ve aynı zamanda Türkiye için endemik olduğu belirlenen türün yılda iki generasyon verdiği

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