Aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) on citrus: Seasonal abundance, association with the species of host plant, and sampling indices |
| |
Authors: | Nickolas G. Kavallieratos Christos G. Athanassiou George J. Stathas Željko Tomanović |
| |
Affiliation: | (1) Lab. of Agricultural Zoology and Entomology, Agricultural University of Athens, 11855 Athens, Greece;(2) Lab. of Biological Control, Benaki Phytopathological Institute, 14561 Kifissia, Greece;(3) Inst. of Zoology, Faculty of Biology, University of Belgrade, 11000 Belgrade, Yugoslavia |
| |
Abstract: | Samples were collected from southern Greece during 1996–2000 in order to investigate the presence of parasitoids onAphis gossypii Glover infesting several citrus species. The species of aphidiines found to have a significantly different preference forA. gossypii wereAphidius colemani Viereck,Aphidius matricariae Haliday,Diaeretiella rapae (M’Intosh),Ephedrus persicae Froggat,Lysiphlebus testaceipes (Cresson),Binodoxys acalephae (Marshall) andBinodoxys angelicae (Haliday). In another sampling experiment, the relative abundance of aphidiine parasitoids on aphids infesting orange and tangerine trees was studied in southern Greece (Nea Kios) in 1996 and 1997.A. gossypii constituted the largest part of the aphid population and was the only species parasitized.B. angelicae andA. colemani were the most abundant parasitoid species. The parasitization rate differed among the parasitoid species.B. angelicae had the highest colonization rate in centrally located and large host (A. gossypii) groups, whereasA. colemani was found in more isolated and relatively small host groups. The percentage of parasitism byB. angelicae was high mainly in large host groups, whenB. angelicae was the only parasitoid present. However, in cases of coexistence ofB. angelicae withA. colemani with hyperparasitoids, in the same sampling unit, the percentage of parasitism was relatively low. http://www.phytoparasitica.org |
| |
Keywords: | Aphis gossypii Aphidiinae hyperparasitoids density dependence isolation citrus species |
本文献已被 SpringerLink 等数据库收录! |
|