Article Sidebar download PDF Published: Jul 13, 2004 DOI: Keywords: Populus Pemphigus interaction gall phenol St Katherine Sinai Egypt Article Details Issue Vol. 2 (2000) Section Articles Main Article Content <i>Populus</i> galls induced by <i>Pemphigus</i> aphids in Sinai Somia El-Akkad Samy Zalat Abstract Egyptian Journal of Biology Vol.2 2000: 15-19