The damage caused by de-icing salt is a serious, but often underestimated, problem which affects substantial numbers of roadside trees and shrubs both in Britain and abroad. This Bulletin has resulted from an extensive review of the world literature on the subject; the findings fall into four distinct categories which comprise its four chapters. Chapter […]
This Bulletin contains the proceedings of the European Economic Community Research Seminar, Guernsey, Channel Islands, 30th March — 1st April 1982. The papers summarise the results of recent research undertaken by scientists from six members of the European Community.
The discovery of the disease in Britain in 1927, and its persistence here until 1959, have provided certain unique opportunities for its study. The results of this study, with certain necessary references to European and American work, are presented here.
Insects of the genus Adelges have long been recognised as economically important pests of the valuable timber-producing silver fir trees that comprise the genus Abies. In fact the planting of the common European silver fir, Abies alba, has had to be greatly restricted in Britain because of the depredations of these insects. This Bulletin gives […]
Part 1 of this Bulletin brings together all the manuscripts dealing with studies on the biology and forest relations of the pine shoot moth, Evetria buoliana Schiff. Further data have been collected on the distribution of the moth in East Anglia and on the results of recent experimental control studies, which are given in Part […]
This Bulletin discusses the importance of nursery practice and the current methods employed. Only coniferous species are dealt with; broadleaved trees occupy a relatively small area in the new plantations. The bulletin shows that important improvements can be obtained by attention to tilth conditions (largely governed by the time of sowing), by treatment of the […]
Pine pitch canker, also known as pitch or pitch pine canker, is a serious canker disease of pines and Douglas fir caused by the fungus Fusarium circinatum. The disease affects trees in planted forests, nurseries, parks and gardens. In plantations, the disease leads to reduced growth and cone yield and can kill trees. It will […]
Phytophthora austrocedri (previously spelled austrocedrae) is an aggressive, fungus-like pathogen that poses a serious threat to juniper trees in Britain. Juniper is an important native species and a significant proportion of the small area of juniper woodland in Britain is protected. Phytophthora austrocedri was first reported in the UK in 2011, and infected trees have […]
Xylella fastidiosa is a disease-causing bacterium that affects a wide range of important woody plants and broadleaved trees. It invades the xylem vessels that transport water throughout plants, and causes symptoms ranging from leaf scorch to tree dieback and death. In the natural environment it is transmitted by xylem-fluid feeding insects such as leafhoppers.
Until recently […]
The Asian longhorn beetle, a native to China and southeast Asia, is an invasive pest of trees in Britain. The larvae of the beetle feed on the wood of a wide range of broadleaved trees, which causes damage and will ultimately kill affected trees. The beetle has caused extensive damage to trees where it has […]
Phytophthora lateralis is an aggressive, fungus-like pathogen of Lawson cypress trees. It mainly attacks the roots of trees and can spread up through the trunk resulting in the rapid decline and death of the tree. Thought to originate in Asia, the disease is the main cause of mortality in Lawson cypress in its native range […]
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