The subject of pest control is rarely discussed without reference to the concept of integrated pest management, or IPM as it is more commonly known. IPM is essentially an holistic approach to pest control that seeks to optimize the use of a combination of methods to manage a whole spectrum of pests within a particular cropping system. Insect pest management is often thought to be synonymous with IPM, mainly because the concept was developed by entomologists, but in its widest sense IPM refers to the management of weeds, pathogens as well as insects. Insect pest management is a subsystem of IPM but for the sake of simplicity the two are considered synonymous throughout the book - unless stated otherwise.

Pest management involves a number of stakeholders ranging from scientists to farmers and agribusiness to consumers. As a textbook for undergraduate/postgraduate students and for researchers of insect pest management emphasis is placed on the underlying principles and experimental approaches to the science that underpins the development of working IPM systems. However, the different types of stakeholder have an impact on the way pest management is viewed, studied and practised and hence, these different perspectives have been included wherever possible.

The aim of this book is to provide an overview of insect pest management, highlighting the major problem areas and con tentious issues and where possible attempting to identify promising lines and directions for future research and implementation. The book includes descriptions and explanations of the different control measures and their use, categorized as insecticides, host plant resistance, biological control, cultural control and interference methods, and quarantine legislation. In addition, there are chapters on sampling, monitoring and forecasting, yield loss assessment, programme design, management and implementation. The introduction provides a brief history of pest management, the causes of pest outbreaks and an overview of the different stakeholders involved in pest management. The final chapter addresses the driving forces that are shaping the future of IPM, including three case studies of working IPM systems.

The book includes case studies and cites examples throughout from a range of entomological disciplines, veterinary, medical, agricultural, forestry and postharvest systems. I have tried in this second edition to reduce the bias towards agricultural systems evident in the first. The use of examples from both temperate and tropical countries and from a wide chronological range are retained - the latter because it is necessary to retain a perspective on current science in relation to what has been done in the past. There is too often a tendency to assume that only the most current research is applicable to today's problems - the best research with stands the test of time and provides the basis for that which is possible now.

A great deal of work is carried out with the objective of developing or implementing IPM programmes but even after nearly 40 years of progress in the science and socio-economics of pest management there are too few opportunities to take an holistic approach to the subject. Ten years ago there was a need for individuals who were able to address the subject of IPM in an interdisciplinary way - for people who can really coordinate, manage and deal with the inter disciplinary nature of IPM. Although there are now more people who work with this ability there is still a great need for others who can contribute to the science of pest management at this level. I hope now, as I hoped ten years ago when I first wrote this book, that this second edition will contribute something to this change of perspective and encourage others to consider the subject of pest management as a whole rather than as isolated disciplines. For it is still at this holistic level that the greatest and most exciting advances are to be made.

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