PRELIMINARY STUDY REGARDING THE HEALTHY STATE OF SOME DECORATIVE TREES FROM THE B�ILE 1 MAI FOREST , UNIVERSITY AND N. B�LCESCU PARKS OF ORADEA (BIHOR COUNTY, ROMANIA)

Sturz Teodora, Cupşa Diana

ABSTRACT

During the present study we wanted to evaluate the diseases and pests of the ornamental tree species from B�ile 1 Mai Forest and University and B�lcescu Parks. From these 3 green spaces we have collected samples in tree and shrub species. On the leaves collected in May we observed the presence of some attacks in the shape of small blurs or orifices. In June we have noticed the increase of the number of blurs and their dimensions were bigger. In September the blurs are more confluent covering almost the whole leaf. The attacked leaves roll up they fall early. We determined a number of 7 types of diseases produced by bacteria, fungi or insects.