The white olive scale, Leucaspis riccae Targioni Tozzetti (Hemiptera: Diaspididae) is one of the most important pests attacking olive. The present paper includes some ecological aspects of the white olive scale, L. riccae and its parasitoid. Dynamics of L. riccae and its parasitoid on olive trees was carried out in Fayoum governorate, during 2020 and 2021. Only one parasitoid recorded in this work was Aphytis libanicus Traboulsi (Hymenoptera: Aphelinidae). Statistical analysis of the effect of weather factors on the population of L. riccae and its parasitoid during the two years under consideration was explained. It is concluded that maximum and minimum temperatures was significant on the population of L. riccae and its parasitoid, A. libanicus while percent of relative humidity it is nonsignificant. Obtained trend over both years indicated the occurrence of two activities per year for L. riccae on olive in Fayoum. In this study, it is evaluated the insecticidal effects of insecticides and botanical oils against the white olive scale infested olive and its parasitoid A. libanicus in Faiyum Governorate, throughout the experiment period 2020 and 2021. The results indicated that the actellic was the most effective treatment against L. riccae and its parasitoid A. libanicus. Citrus oil compound caused the lowest reduction against L. riccae and its parasitoid A. libanicus. It is concluded that essential oil and plant extract are promising compounds to control L. riccae and are safe to survive the parasitoid A. libanicus.