Parasitic weeds are those plants which have lost their autotrophic nature during the course of evolution. According to the dependency on host plant, parasitic weeds can be classified into partial and total parasites. Partial parasites only require the minerals from the host and can prepare food on their own. Total parasitic weeds are completely dependent on host for their nutrition. On the basis of their attack site, parasitic weeds can be further classified into stem parasites and root parasites. Transplanting, crop rotation and intercropping techniques are a few ways of managing parasitic weeds. This book explores all the important aspects of parasitic weeds in the present day scenario. The current research on parasitic weeds are glanced at and their applications as well as ramifications are looked at in detail. The extensive content of this book provides the readers with a thorough understanding of the subject.