SoIt Binl. &ohm. Vol. 14. pp. 167 to 169. I982 Pergsmon PressLtd. Printed in Great Britain
BOOK REVIEWS Compendium of Cotton Diseases, edited by 6. M. Watkins. American Phytopathological Society, 1981. 87 pp. US g11.00. This publication is another valuable contribution to the Disease Compendia Series by the American Phytopathoi~ gical Society. The editor has drawn on the considerable expertise of a long list of contributors. These authors have presented sections dealing with the general concepts of cotton diseases and details of the infectious and non-infectious diseases of the cotton plant. In the first section, the authors outline the crop losses due to disease, how to recognize disease symptoms and a brief biology of the causal organisms of cotton diseases-viruses, mycopi~m~ike organisms, bacteria, fungi and nematodes,-and how diseases are spread. The second section is devoted to describing the many infectious diseases of cotton. These include seedling disease complex, boll rots, bacterial blight, cotton rusts, Fusarinm wilt-nemat~e complex, Verticitlium wilt, Phy~totrjchu~ root rot, nematode diseases, blue disease, leaf crumple and terminal stunt. These have been prepared by many different authors but generally follow the format of descriptions of the symptoms, causal organisms, disease cycles and control methods. Included in the text are many excellent illustrations, black and white and colour photographs of the causal organisms, symptoms and crop damage. The final section outlines the various non-infectious diseases of cotton including nutrient deficiencies, chemical injury and other non-parasitic disorders such as soil moisture effects, lightning and haii damage, and air pollution. While these diseases are not extensive& discussed there is sufficient detail to indicate that not only biotic agents cause diseases of this important economic crop. SmalI sections on the theory and practice of breeding for disease resistance and crop mana~ment for disease control and a guide to the ident~cation of diseases in the field complete this comprehensive coverage of the problems which may confront the cotton grower. This publication will appeal to the cotton disease specialist in that it summarizes the state of knowledge of the many aspects of cotton disease and includes many selected references. St will also appeal to the cotton grower who wants to keep a check on the health of this crop and needs to know when to consuit the experts for a solution to the problem at hand. At 511.00 a copy no one could keep their cotton-picking fingers off it. B. J.
This compendium follows the basic format of the previous publications. The editors have called on plant pathologists, entomologists and geneticists from the U.S.A., Canada, England, Scotland and The Netherlands to write sections of the book and acknowledge the assistance of many other researchers throughout the world. The quality of line drawings and photographs throughout the book is again of a very high standard. The 198 colour photographs, though small, show with good clarity the extensive usage of elms, and the symptoms caused by the many infectious and non-infectious agents which affect them. The book is arranged in four main parts. The introduo tion outlines the importance of elms to the immunity, their dist~butio~ how they are cultivated and the types of disease which atlhct them. The second part details the biotic diseases of elms with an extensive treatment of the Dutch elm disease, together with other wilts, elm yellows, bacteria1 wetwood, cankers, folial disease, root rot and damping off, nematodes, viruses and mistletoe diseases. The third part outlines abiotic diseases including nutrient deficiencies (rare), meteorologic factors (drought, excess moisture, temperature effects, climatic stress), chemical toxicity (herbicides, insecticides, fungicides, soil sterilants etc.) and mechanical damage (wind, ice, frost, lightning, fire). To complete the coverage of the problems faced by the elms is a final section of other agents that affect them. This inctudes a section on insects and mites (the first time in the APS series that these groups have been considered in detail) and minor factors such as winged cork, abnormal growth rings, stem galls and epiphytes. As was the case with the other compendia, useful appendices, a guide to the identification of biotic diseases and a glossary of terms are important additions to enhance the value of this publication. It is to be hoped the book achieves the wide distribution it deserves. The editors state that it was written to provide a practical reference for foresters, entomologists, weed scientists, botanists, arborists, nurserymen, landscape designers, park managers, superintendents of public grounds, those involved in land management and the public at large. Let us hope that the message in the book that this majestic and important landscape tree is worth fighting for against it’s many enemies reaches this large and diverse crew, and that they respond to the call-steady at the ‘elm-, and do all they can to ensure that the elms maintain their rightful and prominent position in our environment.
MACAULEY
3.
Compendium of Elm Diseases, edited by R. J. Stipes and R. J. Compana. American Phytopathological Society, 1981. 96 pp. US $11.00. The Compendium of Elm Diseases is the seventh in a series of disease compendia published by the American Phytopathological Society. It is the first in the series to deal with a tree species rather than an economic crop plant species, but because of the wide usage of Elm snecies in both North America and Europe, path~ogical problems of these trees have important economic implications. In the United States alone, it is estimated that costs in terms of property value losses and disease management are approximately 15100million per year.
J.
MACAULEY
Compendium of Potato Diseases. edited by W. J. Hooker. American Phytopathological Society, 1981. 125 pp. US $11.00. The Compendium of Potato Diseases is the sixth of a series of compendia of important crop diseases published by the American Ph~opatho~o~~l Society. The editor has utilized the exp&i& of m&y individuals whose experience. and knowledge of the potato crop and the problems associated with growing this crop is apparent to the reader of this excellent publication. The first part of the compendium outlines the importance of the potato as a world food source, what is meant
167