A comprehensive review of our current knowledge of the health and diseases of eucalypts.

Over the last fifty years, there has been an increasing recognition that eucalypts are vulnerable to a wide range of diseases. They have suffered destructive epidemics, particularly of dieback caused by the cinnamon fungus in native forests, of foliar diseases and cankers in plantations, and of dieback of remnant trees on agricultural and grazing land. This has stimulated intensive research into the causes and management of diseases of the eucalypts. This work represents a comprehensive review of our current knowledge of the health and diseases of eucalypts.

By providing multiple economic goods and ecosystem services, Latin American forests play a key role in the environmental, social and economic welfare of the region’s countries. From the tropical forests of Central America to the Mediterranean and temperate vegetation of the southern cone, these forests face a myriad of phytosanitary problems that negatively impact on both conservation efforts and forest industry. This book brings together the perspectives of several Latin American researchers on pest and disease management. Each chapter provides modern views of the status and management alternatives to problems as serious as the impact of introduced exotic insects and diseases on Pinus and Eucalyptus plantations throughout the continent, and the emergence of novel insect outbreaks in tropical and temperate native forests associated with global warming. It is a valuable guide for researchers and practitioners working on forest health in Latin America and around the world.

"Dedicated to those "passionate about fungi," this volume features species of important plant pathogens in tropical and subtropical regions. Crous (plant pathology, U. of Stellenbosch), president of the Southern African Society for Plant Pathology, introduces Cylindrocladium terminology, media and isolation techniques, pathogenicity, diseases, disease control, morphological methods and features, cultures, techniques for species characterization, phylogenetic analyses, and keys to various genera/species. The second section describes 54 species with cultural characteristics, disease symptoms, substrate, world distribution, cultures, and references."--pub. desc.

Fungi research and knowledge grew rapidly following recent advances in genetics and genomics. This book synthesizes new knowledge with existing information to stimulate new scientific questions and propel fungal scientists on to the next stages of research. This book is a comprehensive guide on fungi, environmental sensing, genetics, genomics, interactions with microbes, plants, insects, and humans, technological applications, and natural product development.

The papers contained in this book were presented at a NATO Advanced Research Workshop (ARW) held at Cape Sounion, Athens, Greece, 19-24 May, 1991. The twenty-eight more comprehensive papers represent the key subjects of the ARW covered by invited speakers. The thirty-four short papers pre sented in a research format are contributions of those invited to participate in the ARW. There was a total of 70 participants from 21 countries. The objectives of the ARW were as follows: to review current knowledge of biological control of plant diseases and plant parasitic nematodes, with emphasis on mechanisms at the molecular, cellular, organismal, and ecosystem level; to examine and expand on current concepts and synthesize new concepts; to identify and prioritize limitations in the use of biological control for plant diseases and nematodes and the scientific research needed to overcome these limitations; and to develop strategies for biological control through management of resident agents or introduction of natural or modified agents.

The Western Australian jarrah forest is unique, contammg some of the most beautiful flora in the world, more than 100 species of birds and some 50 mammals indigenous to this State. This book "The Jarrah Forest - A Complex Mediterranean Ecosystem" is a collection of scholarly essays on every known aspect of the northern part of the jarrah forest extending from south of Collie to the Avon River. All of the work has been researched by members of tertiary institutions, the private sector and government instrumentalities and was prepared expressly for this book. In the list of contributors are the names of many Western Australians who are in the forefront of their particular field. The book will be a very important reference work for senior secondary schools and tertiary institutions in Western Australia for many years to come. Additionally, it will have wide appeal to all interested in forestry management, both in Australia and overseas. I should like to express my appreciation for the efforts of all those involved in the conception and planning of this most valuable book. Perth, August 1988 Peter Dowding LL.B. M.L.A.

This visually superb and informative field guide is the second volume of Flora of the Otway Plain and Ranges, and covers more than 480 species of Daisies, Heaths, Peas, Saltbushes, Sundews, Wattles and other shrubby and herbaceous Dicotyledons. The illustrated family key is unique and covers 75 families and over 200 genera. Each species is illustrated and labels provide a clear key to identification for botanists and amateurs alike. The Otway region of Victoria, with its temperate rainforests, mountain ash forests, heathlands, plains and coastal dunes, has an extraordinarily rich and diverse flora.

This comprehensive volume presents indispensable and up-to-date information on viroids and viroid diseases. It provides a single source of information on the properties of viroids, the economic impact of viroid diseases, and methods for their detection and control. It examines the diseases associated with different plant species, the geographic distribution and epidemiology of viroids, diseases of possible viroid etiology, and the future applications of viroids. Viroids examines the biology of viroids, molecular characteristics, localization and movement, replication, pathogenesis, viroids and gene silencing, classification, viroid-like satellite RNAs, detection of viroids using bioamplification hosts, biological indexing, polyacrylamide gel electrophoresis, molecular hybridisation and polymerase chain reaction. The book looks at the geographical distribution and epidemiology of viroids in North America, Australasia, China, Japan, Europe, the Middle East, Africa, South America, and at the global level. It covers the control of viroids including quarantine of imported germplasm, availability of viroid-tested propagation materials, thermotherapy, tissue culture, and other conventional strategies as well as biotechnological control approaches. Special topics such as ribozyme reaction of viroids and economic advantages of viroid infection are also included. Other chapters summarise the current state of knowledge concerning viroid diseases of the crop in question and aspects of the natural history of viroids in horticulture. Among the crops covered are potato, tomato, tobacco, cucumber, pome fruits, stone fruits, avocado, citrus, grapevines, hop, chrysanthemum, coleus, columnea, and coconut palm. The four eminent editors of this watershed volume have assembled an international group of more than 70 scientists who have substantial experience with viroids and viroid diseases. They have produced a cohesive and comprehensive work that can be used by students, researchers, extension agents, and regulators. It may also be of a great value to science managers, policy makers, and industries in formulating policies and products to obtain viroid-free plants and control viroid diseases. The information on plant quarantine and certification programs will help anyone concerned with the safe movement of plant material across international boundaries or within a single country.