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283 Search Results

  • Publications
    Forestry publication document

    [Archive] British bark beetles
    Lead Author: J.W. Munro
    This Bulletin deals with bark-beetles, a group of insects which is closely connected with forestry practice. It is the outcome of several years’ work and of first-hand study of the beetles both in the laboratory and in the field. The purpose of the Bulletin is to give an account of those bark-beetles which occur in […]
  • Publications
    Forestry publication document

    [Archive] The silver fir chermes
    Lead Author: R. Neil Chrystal
    This Bulletin provides information on the life-cycle of the silver fir chermes in Britain, as well as information on the relationship between the insect and its host tree, the silver fir, to ascertain how far the chermes was responsible for the death of the tree. The Bulletin also presents certain information collected by the author […]
  • Publications
    Forestry publication document

    [Archive] The Phomopsis disease of conifers
    Lead Author: Malcolm Wilson
    The fungus Phomopsis pseudotsugae, which has from time to time been known under different names, has a wide distribution in Britain and also occurs on the continent of Europe. It may attack both the green and the blue Douglas firs, the European and Japanese larches and Abies grandis among the silver firs. It is possible […]
  • Publications
    Forestry publication document

    [Archive] Poplars 1923
    Lead Author: Forestry Commission
    In this bulletin an attempt is made to indicate which kinds of poplar it is advisable to cultivate and how they should be planted and treated with a view to the economic production of timber.
  • Publications
    Forestry publication document

    [Archive] The Douglas fir chermes (chermes cooleyi)
    Lead Author: Forestry Commission
    This bulletin embodies the results of an investigation into the life history of Chermes (Gillettea) cooleyi Gillette, an American species of the family Chermesidae, which has made its appearance upon the Douglas fir in this country. The insect Chermes cooleyi lives partly on the Douglas fir and partly on the Sitka spruce. It is not […]
  • Publications
    Forestry publication document

    [Archive] Rate of growth of conifers in the British Isles
    Lead Author: Forestry Commission
    A survey for the collection of statistics as to the rate of growth and production of timber was begun in the summer of 1917, at a time when the large demands for timber required for military purposes and the mining industry were being met mainly from British woods. Extensive fellings were in progress in all […]
  • Publications
    Forestry publication document

    [Archive] Collection of data as to the rate of growth of timber
    Lead Author: Forestry Commission
    This Bulletin discusses the procedure to follow to undertake an assessment of the silvicultural possibilities of the woodlands and uncultivated lands in Britain. Two factors involved in any such assessment: (a) The quantity of timber, and (b) The quality of timber produced, under given conditions. This Bulletin deals chiefly with the quantity of timber produced.