The paper goal was to investigate distribution of Panonychus ulmi in four apple cultivars (Red Delicious, Golden Delicious, Idared and Granny smith) in two localities of Kosovo (Podujevë and Pristina), as well to give an appropriate indication about the measures that should be taken to keep this pest under control. The research was performed during the years of 2018 and 2019, while experiment was based on the method of randomized blocks in three replications. In each replication, leaves from 10 trees of apples were checked randomly, from which the eggs and the moving stages of Panonychus ulmi were collected during vegetation period. The most affected cultivar by Panonychus ulmi was the Red delicious with a total of 1811 ascertained individuals of this pest, while the least affected was the Granny smith with 436 individuals. Other cultivars were affected also at different levels with 1348 and 716 individuals of this pest in the Golden delicious respectively Idared.