Black Sea Journal of Agriculture
Yazarlar: Celal TUNCER, İsmail Oğuz ÖZDEMİR, Rahman KUSHİYEV
Konular:Mühendislik, Ziraat
Anahtar Kelimeler:Black timber bark beetle,Hazel sawfly,Citrus longhorned beetle,Hazelnut,Insect,Invasive pests
Özet: In this study, four new insect pest species those are observed in hazelnut orchards of Turkey were discussed. Black timber bark beetle, Xylosandrus germanus belong to ambrosia beetles group became one of the serious pests of hazelnut trees in last years. This species attacks the healthy trees as well as debilitated ones by any reason. Adult emergence of this pest is seen from early April to September. This pest attack and bore holes to make galleries inside of trees and finally cause death of trees, with two other common ambrosia beetles in hazelnut orchards. The second species, Frosted moth-bug, Metcalfa pruinosa is very polyphagous species and reported years ago with a small numbers in country but it became very common in hazelnut orchards during the years of 2014-2018, as well as on many other plants. This pest feeds on young shoots and leaves of hazelnut, produces honeydew and cause fumagine. Another new pest species, Croesus septentrionalis was faunistically recorded years ago in country but never observed as a pest on hazelnut until last years. This species was observed as a pest in some hazelnut orchards of Marmara region during 2015-2016. The larvae of this pest gregariously feed on leaves of hazelnut during the summer period. Lastly, Anoplophora chinensis, an invasive and new species in country, was observed on hazelnut trees in Trabzon province, in 2018. Among them, X. germanus became very common in hazelnut orchards in short time and have economic importance. But M. pruinosa and C. septentrionalis does not seem having economic importance. A. chinensis is an important pest of some other plants and the damage potential on hazelnut trees must be monitored carefully in subsequent years. In this study, in addition to field observations, short descriptions, distributions, biology and damages of these four new pest species of hazelnut were given.