Research on evolution of the main pests of platane in Romania

Abstract

n recent years, in Bucharest and in other urban centres in our country began to be placed Platanus spp. trees. In the area of Bucharest, in the year 2014 and 2015 was an extension of two dangerous Platanus’ pests [Thesycamore 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 and identify other potential pests that have the potential to attack the Platanus spp.. In order to carry out effective and well timed control methods, bio monitoring studies of the pests are necessary. The biology, ecology and the vulnerable life periods of the pests were studied. It was noted intensity and frequency of infested leaves, calculating the degree of attack, these indicators are variable, depending on the pest life cycle or the period studied. For Corythucha ciliata recorded population was between the 2 and 8 exemplars/leaf attacked, while for Phyllonorycter platani attack was between 441 and 549 leaves attacked, regarding the number of mine / leaf between 1 and 10 and ranges of attacked leaf surface is between 1.4 and 5.5/attacked leave. Are presented other pests identified in the nursery.