© 1981 by Institute of Chartered Foresters
Some Aspects of the Growth of Beech Trees and the Incidence of Beech Bark Disease on Chalk Soils

Forestry Commission. Research and Development Division Alice Holt Lodge, Surrey
*Present address: Meallan, Jenkins Park, Fort Augustus, Inverness-shire, Scotland.
Growth characteristics and the incidence of beech bark disease were assessed within beech stands, aerial photographs of which showed discrete areas of foliar chlorosis. Chlorosis was mainly confined to distinct soil zones which contained microscopically divided chalk. Compared with the non-chlorotic trees, those trees growing in the chalky soil type had smaller mean diameter and had a higher current stocking density. The incidence of the early (insect infestation) phase of beech bark disease was the same on the two soil types, but the second phase (bark necrosis) was more severe on the chalky soil.