Insects are great classroom study organisms. They are easy to collect and raise and have a fascinating array of life histories. Because they are small and have tremendous reproductive capacity ecological studies of dispersion, predation, parasitism and reproduction can be studied in compressed timeframes and small areas relative to similar studies of larger organisms. Insects are also important bioindicators of the health of ecosystems. In a small space and with very little cost colonies of insects can be raised in classrooms for use in behavioral and physiological studies. The purpose of this book is to explain how to build and use insect collecting and rearing devices and through explanations of the various techniques stimulate educators to explore the study of insects in their classrooms. Insects are often given little consideration with regard to humane handling practices. Please remember that insects are living creatures and, as such, are entitled to the same treatment as other living creatures. Teachers should remember that students look to them for clues to the proper way of behaving in new situations. When collecting and working in the "field" educators should teach students to respect the environment. Do not collect more organisms than needed, treat all of the organisms you collect with care, and try not to leave signs of your presence in an area by returning rocks, logs, etc. to their original locations. If you must kill animals you've collected, do so quickly and humanely.

Pine wilt disease (PWD) is unquestionably a major threat to forest ecosystems worldwide. After seriously affecting Eastern Asian countries, the challenge is now in Europe, following its detection in Portugal in 1999 and its subsequent spread. For foresters, these were really very bad news and, in order for adequate action to be taken, scientists had to teach politicians about the seriousness of the problem. That is never an easy task, but it was successfully done at that time, mainly by the continued effort of Professor Manuel Mota. The challenge of having political decisions based on good science is fundamental for the success of any program, but especially in dif?cult situations such as those arising by the introduction of harmful organisms in new ecosystems. The success of the dialogue between science and policy requires intelligent partners from each side, which is not always necessarily the case... Examples of lack of recognition of problems raised by science are unfortunately abundant throughout the history of science. The recent recognition of the efforts of the Intergovernmental Panel on Climate Change (IPCC) and Al Gore with the - bel Prize, and the continued failure in taking appropriate actions by major political players is a dramatic modern example of the dif?culty of this dialogue...

Biochemical studies on plant virus RNA replication have advanced considerably since 2000, primarily because of new genetic, molecular, biochemical, and enzymatic studies. This book generates understanding of multiplication of plus-sense RNA plant viruses, especially at molecular level. Certain virus-encoded essential proteins, nucleotide sequence motifs, and RNA secondary structures are central to virus RNA replication, which has a number of stages. Each is a complex phenomenon requiring specific factors and conditions.

Advances in Rice Blast Research provides a complete overview of the research undertaken on the rice-blast pathosystem. This book gathers in one volume the most recent works on rice blast fungus genetics and molecular biology of pathogenicity, rice blast fungus population studies, and genetics and molecular biology of rice resistance to blast, including resistance gene cloning. It also presents the latest results on resistance breeding and resistance management strategies, epidemiology and disease management. This book is a must for plant pathologists and breeders working on rice blast and also to plant pathologists and breeders dealing with fungal diseases in general, because the rice-blast pathosystem is a model in plant pathology. Advances in Rice Blast Research provides a complete overview of the research undertaken on the rice-blast pathosystem. This book gathers in one volume the most recent works on rice blast fungus genetics and molecular biology of pathogenicity, rice blast fungus population studies, and genetics and molecular biology of rice resistance to blast, including resistance gene cloning. It also presents the latest results on resistance breeding and resistance management strategies, epidemiology and disease management. This book is a must for plant pathologists and breeders working on rice blast and also to plant pathologists and breeders dealing with fungal diseases in general, because the rice-blast pathosystem is a model in plant pathology.

Plant growth is of great economical and intellectual interest. Plants are the basis of our living environment, the production of our food and a myriad of plant-based natural products. Plant bio-mass is also becoming an important renewable energy resource. Agricultural plant cultivation and breeding programs have altered plant productivity and yield parameters extensively, yet the principles and underlying mechanisms are not well understood. At the cellular level, growth is the result of only two processes, cell division and cell expansion, but these two processes are controlled by intertwined signaling cascades and regulatory mechanisms forming complex regulatory networks. Ultimately this network is what plant scientists are trying to unravel. The sequencing of model and agronomically important plant genomes allows complete insight into the molecular components involved in each process. Methods to quantify the molecular changes, image growth processes and reconstruct growth regulatory networks are rapidly developing. This knowledge should help to elucidate key regulators and to design methods to engineer plant architecture and growth parameters for future human needs. This volume gives a comprehensive overview of what is known about plant growth regulation and growth restraints due to environmental conditions and should allow readers at all levels an entry into this exiting field of research.

Mycorrhizal fungi are microbial engines which improve plant vigor and soil quality. They play a crucial role in plant nutrient uptake, water relations, ecosystem establishment, plant diversity, and the productivity of plants. Scientific research involves multidisciplinary approaches to understand the adaptation of mycorrhizae to the rhizosphere, mechanism of root colonization, effect on plant physiology and growth, biofertilization, plant resistance and biocontrol of plant pathogens. This book discusses and goes into detail on a number of topics: the molecular basis of nutrient exchange between arbuscular mycorrhizal (AM) fungi and host plants; the role of AM fungi in disease protection, alleviation of soil stresses and increasing grain production; interactions of AM fungi and beneficial saprophytic mycoflora in terms of plant growth promotion; the role of AM fungi in the restoration of native ecosystems; indirect contributions of AM fungi and soil aggregation to plant growth and mycorrhizosphere effect of multitrophic interaction; the mechanisms by which mycorrhizas change a disturbed ecosystem into productive land; the importance of reinstallation of mycorrhizal systems in the rhizosphere is emphasized and their impact on landscape regeneration, and in bioremediation of contaminated soils; Ectomycorrhizae (ECM) and their importance in forest ecosystems and associations of ECM in tropical rain forests function to maintain tropical monodominance; in vitro mycorrhization of micro-propagated plants, and visualizing and quantifying endorhizal fungi; the use of mycorrhizae, mainly AM and ECM, for sustainable agriculture and forestry.

This book is based mainly on invited and offered papers presented at the Second International Symposium on Bacterial and Bacteria-like Contaminants of Plant Tissue Cultures held at University College, Cork, Ireland in September 1996, with additional invited papers. The First International Symposium on Bacterial and Bacteria-like Contaminants of Plant Tissue Cultures was held at the same venue in 1987 and was published as Acta Horticulturae volume 225, 1988. In the intervening years there have been considerable advances in both plant disease diagnostics and in the development of structured approaches to the management of disease and microbial contamination in micropropagation. These approaches have centred on attempts to separate, spatially, the problems of disease transmission and laboratory contamination. Disease-control is best achieved by establishing pathogen-free cultures while laboratory contamination is based on subsequent good working practice. Control of losses due to pathogens and microbial contamination in vitro addresses, arguably, the most importance causes of losses in the industry; nevertheless, losses at and post establishment can also be considerable due to poor quality microplants or micro-shoots. In this symposium, a holistic approach to pathogen and microbial contamination control is evident with the recognition that micropropagators must address pathogen and microbial contamination in vitro, and diseases and microplant failure at establishment. There is increasing interest in establishing beneficial bacterial and mycorrhizal association with microplants in vitro and in vivo.

In the summer of 1997 some twelve lecturers and sixty students met for ten days in Budapest Hungary in a NATO Advanced Studies Institute (ASI) to consider "New Scientific and Technical Aspects of Verification of the Biological and Toxin Weapons Convention." In many ways the meeting was ahead of its time. The Ad Hoc Group was only then about to move to the discussion of a rolling text of the Protocol to the Biological and Toxin Weapons Convention (BTWC). It had been mandated to negotiate the Protocol by the Special Conference which had considered the work of the VEREX process that had taken place following the 1991 Third Review Conference of the Convention. Now, in late 1999, after much further negotiation of the text of the Protocol we are moving towards the endgame of the negotiations. Nevertheless, the scientific and technical issues discussed in the ASI in Hungary continue to be of direct relevance to the verification of the Convention and will continue to be relevant as the eventual Protocol moves from agreement through a Preparatory Commission stage and into full implementation over the next several years. The papers in this volume are much as they were presented in Budapest both in order of presentation and in content. They were designed by the ASI co-directors, Professor Graham Pearson and Ambassador Tibor Toth (Chairman of the Ad Hoc Group) to provide an integrated overview and in-depth analysis of the issues at stake.

Major Fungal Diseases of Rice: Recent Advances provides a comprehensive overview of latest research in rice fungal pathology. There are 25 chapters dealing with the blast, sheath blight, sheath rot, brown spot and scald diseases of rice as well as some broader topics. The book covers recent progress in a number of key fundamental aspects such as pathogenicity, pathogen diversity, molecular characterisation, gene cloning, genetics of host resistance and host-pathogen interactions. It also presents the current status and perspectives in strategic and applied areas such as epidemiology, resistance breeding, biological control, induced resistance, seed-borne diseases and quarantine issues and disease management strategies. This book is essential for rice researchers, pathologists and breeders and will also be suitable for cereal and plant pathologists in general, as there is an extensive coverage of recent research advances in rice blast, a model system in plant pathology.

The fungus Sclerotinia has always been a fancy and interesting subject of research both for the mycologists and pathologists. More than 250 species of the fungus have been reported in different host plants all over the world that cause heavy economic losses. It was a challenge to discover weak links in the disease cycle to manage Sclerotinia diseases of large number of crops. For researchers and s- dents, it has been a matter of concern, how to access voluminous literature on Sclerotinia scattered in different journals, reviews, proceedings of symposia, workshops, books, abstracts etc. to get a comprehensive picture. With the pub- cation of book on 'Sclerotinia', it has now become quite clear that now only three species of Sclerotinia viz. , S. sclerotiorum, S. minor and S. trifoliorum are valid. The authors have made an excellent attempt to compile all the available infor- tion on various aspects of the fungus Sclerotinia. The information generated so far has been presented in different chapters. After introducing the subject various aspects viz. , the diseases, symptomatology, disease assessment, its distribution, economic importance, the pathogen, its taxonomy, nomenclature, reproduction, reproductive structures with fine details, variability, perpetuation, infection and pathogenesis, biochemical, molecular and physiological aspects of host-pathogen interaction, seed infection, disease cycle, epidemiology and forecasting, host resistance with sources of resistance, mechanism of resistance and other mana- ment strategies have been covered.

The rhizosphere is a very complex environment in which the effects of the plant on soil microorganisms and the effects of the microorganisms on the plant are interacting and are interdependent. Plant root exudates and breakdownproducts attract microbes and feed them and, in turn, the plants often bene't from the microbes. Interactions among microorg- ismsandplantrootsareessentialfornutritionalrequirementsoftheplant. Plant growth, development and productivity are largely dependent on the soil environment in the root region rhizosphere. The new techniques of studying the rhizosphere enables us to get a much better understanding of the dynamics of the rhizosphere population, such rhizosphere studies beingofinteresttoagriculturists, soilbiologists, chemists, microbiologists andmolecularbiologists. The rhizosphere microbes in?uence the root environment in several ways. They may change the oxidation-reduction potential, in?uence the availabilityofmoistureandnutrients, producegrowthinhibitingorgrowth promoting substances in the form of exudates, provide competition and possiblyinducemanyothereffects.Mycorrhizalassociationsarebene?cial in mineral uptake and in increasing root surface area for effective ion absorption. Antagonism, competitionandsynergisminsoilandtherhizoplane(r- zosphere) are the most important microbial interactions to consider in the study of rhizosphere biology. With the growing information on the production of growth regulators, competitiveness of the microbes in the rhizosphere, microsymbionts, and other factors, their effect upon plant growth will become more evident. Experiments on the introduction of microbes or their products in the rhizosphere will help to improve our understandingofthebiologyoftherhizosp

PGPR have gained world wide importance and acceptance for agricultural benefits. These microorganisms are the potential tools for sustainable agriculture and the trend for the future. Scientific researches involve multidisciplinary approaches to understand adaptation of PGPR to the rhizosphere, mechanisms of root colonization, effects on plant physiology and growth, biofertilization, induced systemic resistance, biocontrol of plant pathogens, production of determinants etc. Biodiversity of PGPR and mechanisms of action for the different groups: diazotrophs, bacilli, pseudomonads, and rhizobia are shown. Effects of physical, chemical and biological factors on root colonization and the proteomics perspective on biocontrol and plant defence mechanism is discussed. Visualization of interactions of pathogens and biocontrol agents on plant roots using autofluorescent protein markers has provided more understanding of biocontrol process. Commercial formulations and field applications of PGPR are detailed.

Recent years have brought an upsurge of interest in the study of arbuscular mycorrhizal (AM) fungi, partly due to the realization that the effective utilization of these symbiotic soil fungi is likely to be essential in sustainable agriculture. Impressive progress has been made during the last decade in the study of this symbiosis largely as a result of increasing exploitation of molecular tools. Although early emphasis was placed on the use of molecular tools to study physiological processes triggered by the symbiosis, such as expression of symbiosis-specific polypeptides and modulation of host defences, other applications await. It was obvious to us that gathering leaders in the field to summarize these topics and point out research needs was necessary if we were to understand the physiology and function of AM fungi at a molecular level. In addition, we have taken the opportunity to present these reviews in a logical sequence of topics ranging from the initiation of the life cycle of the fungus to its functions in plant growth and in the below ground ecosystem. It was a challenge to limit this flood of information to the confines of one text. This is a very exciting time for mycorrhiza biologists and it is our hope that some of this excitement is conveyed to our readers.

Ascochyta blights consistently affect large areas of grain legume production (pea, lentil, chickpea and faba bean) in all countries where they are cultivated. These diseases are capable of causing large yield losses under conducive environmental conditions. This book considers the state of the art by taking a comparative approach of Ascochyta blight diseases of cool season food and feed legumes. Topics considered are pathogen diversity, legume genetics and breeding, and integrated disease management.

Reprinted from European Journal of Plant Pathology, Volume 119, No. 1, 2007

The main theme of the book is sustainable disease management in a European context. Some of the questions addressed are: How does society benefit from plant pathology research? How can new molecular approaches solve relevant problems in disease management? What other fields can we exploit in plant pathology research? What challenges are associated with free trade across the new borders? How can we contribute to solving problems of developing countries? How does plant pathology contribute to food quality and safety? How does globalization/internationalization affect teaching and extension in plant pathology?

In the context of increasing international concern for food and environmental quality, use of Plant Growth-Promoting Rhizobacteria (PGPR) for reducing chemical inputs in agriculture is a potentially important issue. PGPR are root-colonizing bacteria that exert beneficial effects on plant growth and development, but they can be also employed in the control of plant pathogens, for enhancing the efficiency of fertilizers, and for degrading xenobiotic compounds. This book provides an update by renowned international experts on the most recent advances in the ecology of these important bacteria, the application of innovative methodologies for their study, their interaction with the host plant, and their potential application in agriculture.

Plant diseases and changes in existing pathogens remain a constant threat to our forests, food, and fiber crops as well as landscape plants. However, many economically important pathosystems are largely unexplored and biologically relevant life stages of familiar systems remain poorly understood. In a multifaceted approach to plant pathogenic behavioral control, Sustainable Approaches to Controlling Plant Pathogenic Bacteria discusses the impact of plant pathogenic bacterial pathogenesis on scientific and economic levels. It introduces mechanisms, measuring tools, and controlling strategies you can use to meet the challenge of developing new and innovative ways to control plant diseases. The book covers many aspects of the activities of pathogenic bacteria that interact with plants. With chapters contributed by experts, the book focuses on: Pathogenesis Epidemiology Forecasting systems Control measures including diagnosis, quarantine, and eradication Adoption of agro-traditional practices Tools for the control of antibacterial polypeptides Nutrient supplements Metabolic substances from other organisms Mechanisms of siderophores Host resistances Quorum sensing and quenching Seed and foliar applications Impact of plant pathogens on scientific and economic levels The editors' approach provides a broad perspective, including modern trends in ecology that consider plant pathogenic bacterial control from all angles. The discussions and reviews in the book cover a wide range of aspects of plant pathogenic bacterial pathogenicity, epidemiology, and impact on the food chain as well as strategies for control, which will help you develop sustainable methods for controlling plant diseases.

This is an up-to-date guide on the science and practice of disease control based on fungicides in horticulture and broad acre agriculture. It describes how conventional, organic and biological fungicides are discovered, how they work and how resistance evolves. Chapters on formulation, mode of action, mobility and application inform decisions about which fungicides to use, when to use them, and how to rotate (or tank-mix) them, to manage both plant disease and fungicide resistance. A chapter on experimental design of fungicide trials aids practitioners in designing their own trials to evaluate how effective products are for their plant disease problem. Based on the successful 2014 book of Fungicides in Crop Protection this edition has four entirely new chapters, and extensive updates to the other nine chapters. The contents include: * Fungicide markets, discovery and performance. * Modes of action and spectrum. * Biological crop protection, and organic cultivation. * Fungicide formulation, mobility and application. * Experimental design of fungicide trials and their analysis. * Fungicide resistance. * Legislation and regulation. Written for crop protection professionals and scientists, growers, agronomists and consultants, the book is also suitable for students of agriculture and agronomy.

Plant disease epidemiology is a dynamic science that forms an essential part of the study of plant pathology. This book brings together a team of 35 international experts. Each chapter deals with an essential component of the subject and allows the reader to fully understand how each exerts its influence on the progress of pathogen populations in plant populations over a defined time scale. This edition has new, revised and updated chapters.

Since the identification of insect pheromones in the late 1950s, attention has often focused on the use of these potent behavior-modifying chemicals as pest control agents. Much of this interest has concentrated on Lepidoptera, particularly moths. In addressing this topic in other insect orders, this multi-author book fills this current gap in the literature. It presents research from leading authorities on the most important insect groups, and details the current progress of research in these areas. Applications of the research to agricultural systems around the world, and possible mechanisms for sustainable crop protection, are considered. This book is essential reading for students and researchers in entomology and crop protection.

The Advanced Text series is designed for students taking advanced-level courses, including final year undergraduates and taught MSc. Titles in this series will also be invaluable to researchers new to the field, and to established researchers as a basic reference text. Studies of the interactions between plants and their viral, bacterial and fungal pathogens are of major importance in plant and crop production. More than 10 per cent of potential agricultural yield is lost to these organisms annually worldwide, and major epidemics can cause significant local economic and environmental damage. Molecular Plant Pathology addresses the underlying molecular principles of plant/pathogen interactions, in a readily-accessible textbook format.

Healthy seeds and propagules are the basic requirement for producing good grains, fruits and vegetables needed for human survival and perpetuation. Dispersal of microbial plant pathogens via seeds and propagules has assumed more importance than other modes of dispersal, as infected seeds and propagules have the potential to become the primary sources of carrying pathogen inoculum for subsequent crops. Several diseases transmitted through seeds and propagules have been shown to have the potential to damage economies as a result of huge quantitative and qualitative losses in numerous crops. Hence, it is essential to rapidly detect, identify and differentiate the microbial plant pathogens present in seeds and propagules precisely and reliably, using sensitive techniques. Microbial Plant Pathogens: Detection and Management in Seeds and Propagules provides a comprehensive resource on seed-borne and propagule-borne pathogens. Information on the biology of microbial pathogens, including genetic diversity, infection process and survival mechanisms of pathogens and epidemiology of diseases caused by them, are discussed critically and in detail to highlight weak links in the life cycles of the pathogens. Development of effective disease management systems, based on the principles of exclusion and eradication of pathogens and immunization of crop plants to enhance the levels of resistance of cultivars to diseases, has been effective to keep the pathogens at bay. The need for production of disease-free seeds/propagules has been emphasized to prevent the carryover of the inoculum to the next crop or introduction of the pathogens to other locations. Effectiveness of adopting simple cultural practices and development of cultivars resistant to diseases through traditional breeding methods or biotechnological approach have resulted in reducing the pathogen inoculum and disease incidence. Although application of different chemicals may reduce the disease incidence effectively, biological management of crop diseases, employing potential biological control agents have to be preferred to preserve the agroecosystems. Greater efforts have to be made to integrate compatible strategies to enhance the effectiveness of diseases management systems. Protocols appended at the end of relevant chapters form a unique feature of this book to enable the researchers to fine-tune their projects. This 2 volume set provides comprehensive and updated information about the economically-important groups of microbial plant pathogens carried by seed and propagules. Graduate students, researchers and teachers of plant pathology, plant protection, microbiology, plant breeding and genetics, agriculture and horticulture, as well as certification and quarantine personnel will find the information presented in this book useful.

In Virus-Insect-Plant Interactions, the world's leading scientists discuss the latest breakthroughs in understanding the biological and ecological factors that define these complex transmission systems and how this knowledge might be used to our advantage in producing innovative, user and environmentally friendly approaches to controlling the spread of plant pathogens by insects. This is an invaluable reference work for researchers, teachers, and students. There are many quick-reference figures and tables, the contents pages include individual chapter abstracts, and each chapter ends with its own bibliography.
Key Features
* presents the most significant research breakthroughs of the past two decades
* contains eighteen chapters by forty-two world-renowned researchers
* invaluable reference work for researchers, teachers and students
* each chapter ends with its own bibliography
* contents pages of forematter include individual chapter abstracts
* contains many quick-reference figures and tables

This book provides practical, up-to-date information that helps in the successful management of diseases on food, fibre and landscape plants for students who do not have a strong background in the biological sciences. It is largely revised to reflect the recent problems in conventional agriculture with an environmental emphasis and to include the latest techniques in biotechnology and genetic engineering. This edition includes information on the more precise indentification of diseases and the pathogens that cause them, the development of epidermics of plant diseases, the application of biotechnology in plant pathology and the use of alternative methods of crop production and disease management. This book should be of interest to agricultural consultants; chemical company representatives; sales personnel; courses in biological sciences and agriculture in high schools; technical colleges.

This comprehensive dictionary provides an essential reference for plant pathologists and agriculturalists at all levels, listing the authoritative names of all major plant pathogens. The 11,000 entries, which include fungi from over 500 genera, 800 viruses, bacteria, mollicutes, nematodes and viriods, contain brief descriptions and thorough supporting references. There are also entries for the names of diseases and disorders, crops and their pathology, fungicides, taxonomic groups, terminology, toxins, vectors and past plant pathologists. Overall, the volume provides a wide-ranging resource for all those working in the discipline. In this new edition over 3000 entries have been added and many existing entries updated and expanded. In addition, common disease names such as "blight" and "canker" are now more conveniently included under the relevant crop.