Abd-Ella, A. A., Abdel-Rahman, Y. A., Abou-Elhagag, G. H. and Gaber, A. S. (2020) “Population fluctuations of oystershell scale insect, Lepidosaphes ulmi (L.) (Homoptera: Diaspididae) on certain olive varieties and the factors affecting its population”, Journal of Phytopathology and Disease Management, 7(1), pp. 43–53. Available at: https://ppmj.net/index.php/ppmj/article/view/196 (Accessed: 27 April 2024).