Horticultural Studies (HortiS) 2014, Vol 31, Num, 1     (Pages: 35-49)

The species of sunn pest egg parasitoids (Hymenoptera: Scelonidae) in wheat field and wooded areas in Bursa and Yalova provinces, their finding ratios of and population monitoring

Gürsel ÇETİN 1 ,Erhan KOÇAK 2 ,Cemil HANTAŞ 1

1 Atatürk Bahçe Kültürleri Merkez Araştırma Enstitüsü, Yalova
2 Süleyman Demirel Üniversitesi, Ziraat Fakültesi, Tarımsal Biyoteknoloji Bölümü, Isparta
Viewed : 1604 - Downloaded : 829 This study was conducted in order to monitor population of the sunn pest egg parasitoids in wheat field and wooded areas around them in Bursa and Yalova provinces and to determine their species and finding ratios from 2006 to 2008. The populations of the egg parasitoids were monitored with yellow sticky traps from March to end of October, weekly. Also, sunn pest adult densities were monitored from appearing the first overwintered sunn pest adults in the fields until the end of harvest. Parasitoid species caught on the traps were identified as Gryon monspeliensis (Picard), Gryon sp., Telenomus chloropus (Thorn.), Telenomus sp., Trissolcus semistriatus Nees, Trissolcus rufiventris (Mayr), Trissolcus djadetshko (Rjach.), Trissolcus sp., Trissolcus grandis (Thomson), Trissolcus pseudoturesis (Rjach.),Trissolcus simoni (Mayr) and Trissolcus festivae Victorov (Hymenoptera: Scelonidae). As a result study, it was determined that 66.6% and 33.4% of Scelionidae population were become Trissolcus, Telenomus and Gryon species respectively.Trissolcus species was determined to be the most common parasitoids with 78.7%, and the most common species was also determined to be T. semistriatus with 26.3%. In the studies conducted for population monitoring, these species were seen first-time on the traps in the third week of March in wooded areas and in the third weeks of April in wheat field. The egg parasitoids` density in wheat field reached to the highest level during June. Keywords : Population monitoring, Scelionidae, Sunn pest, Egg parasitoids