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The Indian subcontinent is witnessed by the number of earthquakes in the past resulted in the devastating aftermath imapcts and the loss of property and life. The markers to these great earthquakes preserved in the sediments with changing environment of deposition is addressed by few of the workers. The lack of standard terminology to define these seismically induced soft sediment deformations and their viability to infer the past magnitudes and deformation instability in the seismically prone zones are rarely evaluated.This book is aimed to acquaintance the needs and the understanding of...

Aphids or plant lice, are small, soft bodied, sucking insects that feed on plant fluids. Heavy infestations reduce plant growth. Honey dew produced by Aphids makes leaves and flowers sticky and acts as a substrate for black sooty fungus. Their tremendous damaging potential related to their high breeding capacity, polymorphism, parthenogenetic and host alteration. About 4700 aphid species are known worldwide. About 803 species/subspecies belonging to 207 genera represents Indian Aphididae. The desert area represents less number of aphids species. The green citrus aphid Aphis spiraecola Patch...