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Samsun İli Fındık Bahçelerinde Bulunan Zararlı ve Yararlı Akarların Populasyon Dalgalanmalarının Belirlenmesi
(Determination of Population Fluctuations of Harmful and Beneficial Mites in Hazelnut Orchards of Samsun Province )

Author : Faruk AKYAZI  Osman ECEVİT  
Type :
Printing Year : 2005
Number : 2005-2
Page : 13-18


Summary
Bu araştırma 2001-2002 yıllarında fındık bahçelerinde bulunan zararlı ve faydalı akar türlerinin popülasyon dalgalanmalarını belirlemek amacıyla Samsun’un Ondokuzmayıs ilçesinin Karagüney köyünde yürütülmüştür. Araştırmada, çalışma süresince ilaçlama yapılmamış iki bahçede görülen zararlı ve faydalı akar türlerinin popülasyon dalgalanmaları belirlenmiştir. Bu amaçla vejetasyon dönemi boyunca yedi günlük aralıklarla yaprak örnekleri alınmıştır. Her iki bahçeden toplam 10 ocakta ve her bir ocaktan 100 yaprak olacak şekilde örnekleme yapılmıştır. Çalışma sonuçları zararlı ve faydalı akar türlerinin popülasyon yoğunluğunun genellikle nisan ayından itibaren artmaya başladığı, temmuz-ağustos aylarında en yüksek seviyelere ulaştığı ve ekim ayından itibaren ise düştüğünü göstermiştir. Araştırmada, zararlı akar türlerinin ilaçsız bu iki fındık bahçesinde yüksek yoğunluklar oluşturamadıkları ve predatör türlerin zararlı akar popülasyonunu kontrol altında tutabildikleri belirlenmiştir.

Turkish Keywords
Fındık, akar türleri, populasyon dalgalanması

Abstract
This study was conducted to the determinate of harmful and beneficial mite species in hazelnut orchards during 2001-2002 at Karagüney village in the 19 Mayıs district, Samsun, Turkey. Seasonal fluctuations of harmful and beneficial mite species were determined in two hazelnut orchards where pesticides were not applied during the study. Leaf samples were collected weekly for monitoring populations of these harmful and beneficial mite species during the vegetative period. Sampling was made by collecting 100 leaves from each ocak and totaly 10 ocak from both orchards. Results revealed that the populations of harmful and beneficial mite species generally started to increase from april and reached their highest level in July-August. Population levels started to decline in October. Population densities of harmful mites did not reach high levels in both hazelnut orchards. Predatory mites could have suppressed the harmful mites.

Keywords
Hazelnut, mite species, population fluctuations

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