The susceptibility of peach, apricot, and pear trees to attack with the white peach scale, (WPS) Pseudaulacaspis pentagona (Targioni-Tozzetti) (Hemiptera, Diaspididae) was evaluated in Nubaria district, El-Beheira Governorate, Egypt from May, 2013 to April, 2015. Results showed that there were no fruit trees of them immune to this pest; the populations of (WPS) were significantly different between the fruit species under study. The susceptibility of peach trees was significantly higher than apricot and pear trees. The total population of P. pentagona had four overlapping annual generations on the three types of fruit trees during the two successive years of study. The monthly variations of P. pentagona population were calculated. Also distribution patterns of P. pentagona on the cardinal directions were studied. The insect distributes on the whole tree with special preference to the eastern cardinal sides in peach and pear trees followed by northern side. But the preference sides in apricot trees were the northern side followed by eastern cardinal side.