Chalcidoid parasitoids of overwintered pupae of Hyphantria cunea(Lepidoptera: Arctiidae) in hazelnut plantations of Turkey's central Black Sea region

Autor: Sullivan, G.T., Karaca, I., Ozman-Sullivan, S.K., Yang, Z.Q.
Zdroj: The Canadian Entomologist; August 2011, Vol. 143 Issue: 4 p411-414, 4p
Abstrakt: AbstractOverwintered pupae of fall webworm, Hyphantria cunea(Drury), were collected from 38 hazelnut (Corylus avellanaL. (Betulaceae)) plantations in Samsun province, Turkey, in 2008 and 2009. Four chalcidoid (Hymenoptera: Chalcidoidea) species were reared: Chouioia cuneaYang (Eulophidae), Conomorium amplum(Walker), Dibrachys boarmiae(Walker), and Psychophagus omnivorus(Walker) (Pteromalidae). Overall parasitism was 11.97% and 4.84% for 2008 and 2009, respectively; species richness on sites ranged from one to three species. Psychophagus omnivorusparasitised 6.7% of all pupae and comprised 79% of chalcidoid rearings. Chouioia cuneahad the highest clutch average (117) and female:male ratio (44.5:1). Records of Chouioia cuneaand Conomorium amplumare new for Turkey and, except for P. omnivorus, all parasitoids are new records for H. cuneain Turkey.
Databáze: Supplemental Index