@inproceedings{paperid:1007171, author = {Moravvej, Gholamhossein}, title = {Establishment of Acyrthosiphon pisum (Harris) on host plants (Pisum sativum L.) varying in nitrogen status}, booktitle = {British Ecological Society Annual Meeting}, year = {2005}, location = {Hatfield, ENGLAND}, keywords = {Acyrthosiphon pisum; Alate aphids; Leaf area; Leaf colour; Soluble nitrogen; Chlorophyll concentration}, }