ISHS


Acta
Horticulturae
Home


Login
Logout
Status


Help

ISHS Home

ISHS Contact

Consultation
statistics
index


Search
 
ISHS Acta Horticulturae 686: VI International Congress on Hazelnut

THE INSECT PEST PROBLEM AFFECTING HAZELNUT KERNEL QUALITY IN TURKEY

Authors:   C. Tuncer, I. Saruhan, I. Akça
Keywords:   hazelnut, bug, population, damage, kernel, quality
DOI:   10.17660/ActaHortic.2005.686.51
Abstract:
There are a lot of insects and mite pests in hazelnut orchards in Turkey. Most pests affect hazelnut production through direct or indirect injury, but a few affect kernel quality and reduce yields by feeding on the nuts themselves. In recent years, hazelnut exporters have begun to complain about this kind of damage reducing kernel quality because it has a negative effect on exports. It was established that more than 15 bug species could affect kernel quality (Heteroptera: Pentatomidae, Coreidae and Acanthosomatidae) in Turkish hazelnut orchards. This study determined fluctuations in the population of these bugs in six hazelnut orchards and on three main cultivars. Palomena prasina and Gonocerus acuteangulatus were found to be the main species. The pest population was above the economic damage threshold. In a cage experiment with P. prasina, three types of injury were determined. In addition to field and cage experiments, quite significant data about bug-related kernel damage were obtained from hazelnut factories. Kernel damage varied according to variety, locality and sample, reaching levels of around 20% of the total crop.

Download Adobe Acrobat Reader (free software to read PDF files)

686_50     686     686_52

URL www.actahort.org      Hosted by KU Leuven LIBIS      © ISHS