PEAR PSYLLA (CACOPSYLLA PYRICOLA F.) DISTRIBUTION IN SOME CULTIVARS OF PEAR CULTIVATED IN THE LOCALITY OF PRISHTINA

Pear psylla, Cacopsylla pyricola F. (Homoptera, Psyllidae), is one of the key insect pests of the pear that can be found in pear production worldwide, depending on the crop and climatic condition. Pear psylla may occur in large colonies on new growth, the base of buds, or the undersides of mature leaves. This pest damage the plants directly by sucking plant sap from the plant tissues and indirectly as a vector of different plant diseases, especially bacteria and pear decline, caused by mycoplasmas. The aim of this paper was to investigate the distribution of pear psylla in five pear cultivars cultivated in locality of Prishtina. The two year experiment (2015 and 2016) was set up in three pear orchards located in the village Barilevo, municipality of Prishtina, while the experiment design was set up according to randomized Fisher blocks in three replications. Sampling methods employed for pear psylla monitoring was visual inspection of spurs and foliage for nymphs and eggs and use of beat tray to monitor adults. The samples, later on, for the purpose of processing were sent to the Plant Protection Laboratory of the Phytosanitary Corporation “Sara&Meti” which is accredited according to ISO 17025. According to the ANOVA there were shown to exist statistical significant differences with regard to the number of pear psylla depending to the pear cultivars and different localities were the pear was cultivated.