J. Jacob – författare

This volume is the 3rd in a series of comprehensive publications devoted to the molecular spectra and environmentally important properties of polycyclic aromatic compounds which constitute one of the most interesting classes of environmental carcinogens. Since the first identification of dibenz(a,h)anthracene and later benzo(a)pyrene as chemical carcinogens in the 1930's, the number of publications devoted to this ubiquitously occurring group of compounds has increased constantly. Therefore, this reference source for the spectral, physicochemical and en­ vironmentaJ properties of polycyclic aromatic compounds should be a welcome addition to the previous volumes for scientists engaged in the investigation, characterisation and control of this hazardous class of pollutants. As was the case with the preceding volume, this publication is the fruit of a close collaboration within the General Directorate for SCience, Research and Development of the Commission of the European Communities between the Environment Institute of the Joint Research Centre Ispra, the Community Bureau of Reference and expert laboratories in the member states. F. Geiss Director of the Environment Institute JRC Ispra 1. Introduction Polycyclic Aromatic Compounds (PAC) are an important class of carcinogenic environmental pollutants, which occur in air, water, soils, sediments, in food and in the work area. Because many hundreds of closely related isomers are being formed and released in the environment from combustion processes of fossil fuels and other organic materials, their environmental and health con­ trol presents a difficult task.

This collection features five peer-reviewed literature reviews on nematode pests in agriculture.The first chapter assesses the value and impact of using integrated pest management (IPM) to combat nematode pests. It summarises the basic biology and morphology of the most economically-important nematode pests and reviews cultural, biological and chemical methods of control.The second chapter discusses advances in understanding plant root response to nematode attack. It highlights how nematodes form feeding structures in host roots and how this behaviour has allowed plants to evolve new mechanisms of resistance that target this structure with a toxic response.The third chapter discusses key nematode pests of wheat, including cereal cyst, root-knot and root-lesion nematodes. It features research on best practice in detecting and managing these pests effectively.The fourth chapter summarises what we know about soil and plant nematodes damaging maize, including lesion, root-knot and vermiform nematodes. It reviews research on characteristics, identification and effects which provide the foundation for effective control.The final chapter describes the characteristics and control of key nematode pests of potatoes: potato cyst nematodes, root knot nematodes, root lesion nematode, potato rot and stem nematodes as well as virus vector nematodes.

This volume is the 3rd in a series of comprehensive publications devoted to the molecular spectra and environmentally important properties of polycyclic aromatic compounds which constitute one of the most interesting classes of environmental carcinogens. Since the first identification of dibenz(a,h)anthracene and later benzo(a)pyrene as chemical carcinogens in the 1930's, the number of publications devoted to this ubiquitously occurring group of compounds has increased constantly. Therefore, this reference source for the spectral, physicochemical and en­ vironmentaJ properties of polycyclic aromatic compounds should be a welcome addition to the previous volumes for scientists engaged in the investigation, characterisation and control of this hazardous class of pollutants. As was the case with the preceding volume, this publication is the fruit of a close collaboration within the General Directorate for SCience, Research and Development of the Commission of the European Communities between the Environment Institute of the Joint Research Centre Ispra, the Community Bureau of Reference and expert laboratories in the member states. F. Geiss Director of the Environment Institute JRC Ispra 1. Introduction Polycyclic Aromatic Compounds (PAC) are an important class of carcinogenic environmental pollutants, which occur in air, water, soils, sediments, in food and in the work area. Because many hundreds of closely related isomers are being formed and released in the environment from combustion processes of fossil fuels and other organic materials, their environmental and health con­ trol presents a difficult task.