The sooty beech scale insect (Ultracoelostoma sp.) (Hemiptera: Margarodidae) exhibits a highly patchy distribution at local and regional scales. A major factor driving this common distributional phenomenon in other phloem-feeding insects is aggregation and local adaptation. The aim of this study was to determine if Ultracoelostoma was locally adapted to its natal host trees, by contrasting the ...

Changes in color were evaluated for beech wood Fagus sylvatica L., caused by a steaming process using either mixture of saturated steam and air or water the temperature range: t = 95 °C to 125 duration T 3 h 12 h. The initially light white-gray with yellow tint darkened during thermal treatment process. It changed pale pink-brown then dark brown color. According visible changes obtained human e...

Beech wood is a material commonly used for furniture, and cutting performance the key to improving product quality enterprise benefits. In this work, beech milling experiments using diamond cutters were carried out, changes in power, temperature, surface roughness examined factor analysis method. The main results of work are listed as follows: Firstly, higher speed depth led roughness. Meanwhil...