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This book contains full descriptions of all the ring nematodes (484 species) reported from everywhere in the world that belong to the family Criconematidae, order Tylenchida. They are plant parasites living in het soil and so they have an economic importance. This book is amply illustrated with line drawings and SEM photographs that are based on microscopic and sub-microscopic observations. AUTHOR: Etienne Geraert was Zoology Professor at Ghent University, Belgium. From 1974 till 1998 he was also Associate Editor of the International Journal Nematologica (now Nematology) where he was responsible for the articles on morphology and taxonomy. He has already published a book on the morphology of the order Tylenchida and four books on the identification of plant-parasitic nematodes of the families Tylenchidae, Criconematidae, Dolichodoridae and Pratylenchidae. From 1990 till 2002 he was Director of the Master's Course in Nematology at Ghent University. 406 b/w images
The genus Verticillium Nees represents one of the world's major fungal pathogens, affecting crop plants mostly in the cool and warm temperate regions, it also occurs in sub-tropical and tropical areas. There are some six species which cause severe wilting in trees, herbaceous plants and plantation crops. Other species are responsible for non-wilt diseases of banana and mushroom, another species infects insects.The monograph provides a comprehensive reference source on Verticillium, enabling research workers to see what has already been achieved and to identify the many new areas of research in which original contributions could be made to further the understanding and control of this important pathogen and the disease it causes.
The family Trichodoridae was established by Thorne in 1935 but it remained of limited taxonomie interest until 1951 when Christie and Perry associated Trichodorus christie (now Paratrichodorus minor) with a "stubby root disease" that affected certain crops in Florida, USA and interest further increased from 1960 when P. pachydermus was implicated as a vector of the economically important tobacco raule virus. Such discoveries gave an impetus to studies on many aspects of the biology of trichodorid nematodes with a consequent proliferation of new species described from different parts of the world. The number of species increased from twelve in 1957 to a present day total exceeding eighty. This rapid expansion in the number of species was accompanied by several reappraisals of the taxonomy and systematies of the family, the most notable changes being the creation of the genus Paratrichodorus by Siddiqi in 1974 and the recognition of the monodelphic genera Monotrichodorus and Allotrichodorus respectively by Andrassy in 1976 and Rodriguez-M, Sher and Siddiqi in 1978. Reliable and unambiguous identification of taxa is dependent on the known reliability of a range of characters, whieh remains of paramount importance in taxonomy even when biochemical and molecular methodology is available. In this book each of the species, including synonyms and species inquirenda, that comprise the family Trichodoridae is re-described from meticulous mieroscopie examination of type specimens, material from official nematode collections and populations in the field.
Sugar beet, alongside sugar cane, is the main source of sugar across the world. Grown widely in Europe, North and South America, Asia and parts of North Africa, the crop is at the core of a multi-billion dollar global industry. A. Philip Draycott has gathered 32 international experts to create this defining text, providing a comprehensive review of the latest research in a clear and accessible form, providing the reader with: Definitive account of this major world crop Coverage of all aspects of successful sugar beet growing Over 2,500 references from international literature Colour images to assist in the identification of sugar beet pests, diseases and nutrient deficiencies All those involved with the crop, including growers and processors, sugar beet and sugar organisations and society members will find this book to be an invaluable resource. Agricultural and plant scientists, food scientists and technologists and all libraries in research institutions where these subjects are studied and taught will find it a valuable addition to their shelves.
The Alliums are some of the most ancient cultivated crops and include onions, garlic, leeks and other related plants. This book provides an up-to-date review of Allium science for postgraduates and researchers. It contains commissioned chapters on topics that have shown major advances particularly in the last ten years such as molecular biology, floriculture and biofertilizers.
Common among moths is a mate-finding system in which females emit a pheromone that induces males to fly upwind along the pheromone plume. Since the chemical pheromone of the domesticated silk moth was identified in 1959, a steady increase in the number of moth species whose pheromone attractants have been identified now results in a rich base for review and synthesis. Pheromone Communication in Moths summarizes moth pheromone biology, covering the chemical structures used by the various lineages, signal production and perception, the genetic control of moth pheromone traits, interactions of pheromones with host-plant volatiles, pheromone dispersal and orientation, male pheromones and courtship, and the evolutionary forces that have likely shaped pheromone signals and their role in sexual selection. Also included are chapters on practical applications in the control and monitoring of pest species as well as case studies that address pheromone systems in a number of species and groups of closely allied species. Pheromone Communication in Moths is an invaluable resource for entomologists, chemical ecologists, pest-management scientists, and professionals who study pheromone communication and pest management.