This study was carried out in order to monitor flight period of Pityokteines curvidens (Germ.) (Coleoptera: Scolytidae) and to determine its damage on Uludag Fir (Abies nordmanniana subsp. bornmulleriana Mattf.) forest in Derbent (Ilgaz Mountain National Park). If the results are evaluated together, it was determined that the overwintered P. curvidens adults were emerged from the overwintering areas in the middle of June when the temperature reached an average of 22°C (the first attack); the larvae and pupae periods were completed in between June –August when the temperature was about 18°C; although the mature adults were available in nature about 2 to 3 months, the dense flights (46.0%) have been seen in June and in a period of 5 days while the temperature was nearly 20°C and the relative humidity was 49.0%; It was also determined that this insect is the most harmful species of the Abies nordmanniana subsp. bornmulleriana in Ilgaz. The insect has only one generation a year, and the sex ratio (Female/Male) varied between 2.00/1 - 4.95/1.
Abies bornmulleriana Mattf. Pityokteines curvidens(Germ.) pheromone trap flight period sex ratio
Primary Language | Turkish |
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Journal Section | Articles |
Authors | |
Publication Date | June 1, 2005 |
Published in Issue | Year 2005 Volume: 7 Issue: 8 |
Bartin Orman Fakultesi Dergisi Editorship,
Bartin University, Faculty of Forestry, Dean Floor No:106, Agdaci District, 74100 Bartin-Turkey.
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