Published in Scientific Papers. Series A. Agronomy, Vol. LVIII
Written by Irina NEACSU, Ioan ROSCA

In recent years, in Bucharest and in other urban centres in our country began to be placed Platanus spp. trees. In thearea of Bucharest, in the year 2014 was an extension of two dangerous Platanus’ pests [The sycamore lace bug(Corythucha ciliata Say, 1832 - Hemiptera: Tingidae) and leaf-mining moth (Phyllonorycter platani Staudinger, 1870 -Lepidoptera: Gracilariidae)]. Research has followed the evolution of these pests in the nursery from Bolintin Deal andidentifies other potential pests that have the potential to attack the Platanus spp. Phyllonorycter platani species hasbeen reported in Europe in 1964, in Padova, Italy, and Romania by Kis, in 1990. The greatest danger of this pest is theassociation brought two fungi Ceratocystis fimbriata Ellis and Halsti. form platani J. M. Walter and Apiognomonia(Gnomonia) veneta Sacc. and Speg. that through synergy with pests can cause decline and death of trees. The two pestshave, in addition to their herbivorous character, a negative impact on the visitors of the parks or streets both from thepoint of view of aesthetics and hygiene and much more sycamore lace bug can be an agent of insect-caused dermatosisconsidered subjects who visit or live near wooded areas or trees which are infested. In order to carry out effective andwell timed control methods, bio monitoring studies of the pests are necessary. The biology, ecology and the vulnerablelife periods of the pests were studied. It was noted intensity and frequency of infested leaves, calculating the degree ofattack, these indicators are variable, depending on the pest life cycle or the period studied. For Corythucha ciliatarecorded population was between the 2 and 8 exemplars/leaf attacked, while for Phyllonorycter platani attack wasbetween 441 and 549 leaves attacked, regarding the number of mine / leaf between 1 and 10 and ranges of attacked leafsurface is between 1.4 and 5.5/attacked leave. Are presented other pests identified in the nursery. It is discussed also thepossibility that other important quarantine of Platanus spp. pests to appear in Romania.

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