Beech scale (Cryptococcus fagisuga Lindinger) (Hemiptera: Eriococcidae) is an invasive forest insect established in the eastern United States and Canada. It predisposes American beech (Fagus grandifolia Ehrhart) trees to infection by Neonectria spp. Fungi causing beech bark disease. White wax secreted by the diminutive scales obscures individual insects, making it difficult to accurately quanti...

OBJECTIVES Regulations to certify nasal carcinoma as occupational disease induced by wood dust vary in the European countries. In Germany, it must be adenocarcinoma and the dust originating from beech or oak trees. In other countries, the disease is reconized as induced by occupation independent of the kind of wood dust or the type of carcinoma. With regard to the harmonization of regulations n...

This work analysed bed lamella dimensional characteristics for beds of bariatric users. Dimensions the Slovak population were defined in years 2020 to 2022 and used design length thickness lamellae. The lamellae made spruce beech wood (grade C24 D50) was determined from weight while meeting requirements EN 1995. bending deflection calculated by a linear FEM model that verified with experimental...

Beech bark disease (BBD) has affected the composition, structure, and function of forests containing a significant proportion of American beech (Fagus grandifolia Ehrh.) across North America. BBD spread has been investigated at landscape and regional scales, but few studies have examined spatial patterns of disease severity and spread within stands where forest managementmitigationmeasures can ...

Carle, J.B. Quality control sampling in post-thinning assessments at Kaingaroa Forest Chong, Sing-Lai Effect of moisture content on retention of copper-chrome-arsenate preservative in radiata pine sapwood created by vacuum pressure method Dale, R.W. A study of root and needle distribution patterns in 6 year old P. radiata at Eyrewell Forest Deadman, H.W. Farmers' attitudes towards planting tree...

Woods are customarily divided into two types: hardwood and softwood. Softwoods are generally conifers (pine, fir, spruce, cedar, etc.) and hardwoods come from deciduous trees (oak, beech, ash, silver birch, etc.) and from certain tropical species (mahogany, teak, etc.). This distinction is purely botanical, softwoods corresponding to the gymnosperms and hardwoods to the angiosperms, and certain...