Root disease epidemics, because much of the activity takes place in soil and out of sight, pose special challenges to growers who seek to manage them and to scientists who study them. All relevant topics of root disease epidemics and their management are presented: The critical aspects of specific disease components including inoculum, host roots, mycorrhiza and the soil environment are explored. Challenges of disease assessment and the temporal and spatial aspects of epidemic development are considered, and approaches to root disease management including host resistance, chemical, biological and cultural management are discussed in detail. The book fulfills the needs of researchers, teachers, and practitioners of plant pathology.

Every year we see a remarkable increase in scientific knowledge. We are learning more each day about the world around us, about the numerous biological organisms of the biosphere, about the physical and chemical processes that shaped and continue to change our planet. The cataloging, retrieval, dissemination, and use of this new information along with the continued development of new computer technology provide some of the most challenging problems in science as we enter the Information Age. With the explosion of knowledge in science, it is especially important that students in introductory courses learn not only the basic material of a subject, but also about the newest developments in that subject. With this goal in mind, we have prepared a second edition of Introduction to Plant Diseases: Identification and Management. We prepared this edition with the same general purpose that we had for the first edition - to provide practical, up-to-date information that helps in the successful management of diseases on food, fiber, and landscape plants for students who do not have a strong background in the biological sciences. We included new information on (1) the precise identification of diseases and the pathogens that cause them, (2) the development of epidemics of plant diseases, (3) the application of biotechnology in plant pathology, (4) the use of alternative methods of crop production and disease management that help protect the environment, and (5) diseases that have become more important since the first edition was published.

Leap into Action asks: "What happens when performative arts meet pedagogy?" and views performative teaching as building students' understanding of complex ideas and concepts "through action." It provides the theoretical, philosophical, and conceptual terrain by setting forth the scholarly rationale as to what performative pedagogy is at this moment across Art & Design education. Contributions are made from individuals and groups across art and design disciplines who deploy innovative pedagogic approaches with an emphasis on performativity. To underline that Art & Design does not only happen within the institution, Leap into Action provides rich intertextual material that draws upon the experiences of practitioners. Leap into Action is intended to prompt new angles from which to examine one's practice including and beyond pedagogy, mainly in terms of art, design and performance, and disciplines further afield. Whilst Leap into Action engages with performative pedagogies through disruptions, interruptions, tricksters, liminalities, affective bodies, sensory encounters, and technoparticipation, it calls into question what risk-taking means in an arts school context and the tension (even paradox) that exists between wanting to create a safe, welcoming, and inclusive environment and provoking students out of their comfort zones through experimental performative pedagogy and playfulness. Whilst engagement with performative strategies may be a 'risky' strategy, the rewards can be great. Enter the unknown, take a leap into action, and have fun.