Parasitic Nematodes of some Insects from Manipur, India.

Plant-parasitic nematodes are recognized as one of the greatest threats to crop production throughout the world. Estimated annual crop losses of $8 billion in the United States and $78 billion worldwide are attributed to plant parasitic nematodes. Plant parasitic nematodes not only cause damage individually but form disease-complexes with other microorganisms thereby increasing crop loss. Nematode diseases of crops are difficult to control because of their insidious nature and lack of specific diagnostic symptoms which closely resemble those caused by other plant pathogens and abiotic diseases. Future developments of sustainable management systems for preventing major economical agricultural losses due to nematodes is focused on strategies that limit production costs, enhance crop yields, and protect the environment. This book presents a first compendium and overview for nematode problems and their management across North America. Each chapter provides essential information on the occurrence and distribution of plant parasitic nematodes, their major crop hosts, impact on crop production and sustainable management strategies for each region of the continent including, Canada, Mexico and all states of the USA. For each region, a thematic overview of changes in crop production affected by plant parasitic nematodes and their management strategies over time will provide invaluable information on the important role of plant parasitic nematodes in sustainable agriculture.

Biodiversity Is An Irreplaceable Resource Therefore Its Extinction Is Always For Ever. This Is The Reason, Patenting Of Biodiversity Of Any Region Is Being Permitted Nowadays Under Intellectual Property Rights (Ipr) To Curb The Genetic Piracy As Biodiversity Originates At The Molecular Level And Dna, The Only Living Molecule Is The First Level Of Biodiversity. It Is The Index Of Variety Of Nature And Comprises Every Form Of Life, From The Tiniest Microbes To The Mightiest Beasts And Gigantic Trees. It Exists At Gene, Organism And Ecosystem Levels. In The Present Book, Various Dimensions Of Biodiversity, Viz. Historical, Ethno-Medico-Botanical, Socio-Economical, Cultural, Structural, Legal, Conservational And Gender Related Etc. Have Been Discussed By Various Experts Of Different Fields. Status Of Biological Diversity In Forests, Wetlands, Croplands And Specialized Areas Like The Floating Grasslands Of Manipur, National Parks, Wildlife Sanctuaries, Agrestal And Ruderal Sites And Other Protected Areas Has Been Described At Length. Thus, The Book Will Be Equally Useful To Specialists , Teachers, Students, Planners , Policy Makers, Administrators And Commoners. It Gives A Good Insight Of Several Aspects Of Biodiversity Exemplifying Various Natural Phenomena Of Ne Indian Regions.

More than 2,500 abstracts of papers published in a period of 44 years (1956-1998) of nematological research makes the Cumulative Abstract Index to Nematologica an indispensable tool for research workers, agricultural industrialists and university teachers. The abstract index will greatly facilitate access to quality papers on the subject of nematodes (taxonomy, physiology, morphology and genetics), crop protection research, molecular biology in nematological research, nematode parasites, nematophagous fungi, arthropods and soil free-living nematodes and will be a valuable aid to researchers. The Index is even more valuable if used in combination with the General Index published as part of the regular publication program of Nematologica (issue 43 (3-4), May 1997). This general Index volume consists of an Index to Authors and Titles, a Systematic and Subject Index to Nematodes, a Systematic and Subject Index to Hosts/Parasites, and an Index to Methods. The Index can be specifically used to find references to certain nematode species, whereas the abstracts of the actual papers are readily found in the chronologically ordered Cumulative Abstract Index to Nematologica.