© 1957 by Institute of Chartered Foresters
PINUS CONTORTA IN IRELAND, 1955
Forestry Commission
A short study of some of the older plantations of Pinus contorta, a species whichhas been planted freely on infertile soils in Ireland since 1918. The study was made in connexion with planting and with provenance experiments being made with this species in Great Britain. The author distinguishes only three types planted in Ireland, the familiar South Coastal and North Interior types and an intermediate type called Rainer Forest, to which there is no parallel type in Great Britain. The types are discussed under growth rate, site influence, spacing, susceptibility to sawfly attack, mixtures, thinning treatment, and wind blow. In Eire, the fast-growing South Coastal type is preferred and is usually planted pure as a pioneer crop, whereas in Northern Ireland both Coastal and Interior types have often been planted in mixture with Picea sitcbensis. The choice of type and the practice adopted in Eire seems the more successful.