Herbicide use is an essential part of agricultural practices for optimizing crop production these days. This book broadly covers the mechanisms of herbicidal action, mode of action of certain herbicides on controlling diseases, weed expansion and production, and growth and progress of field crops. This compilation is well elaborated and summarized with topics like molecular mechanism of action, immunosensors, community response, utilization of herbicides in biotech culture, weed resistance, herbicides risk and herbicides persistence. The studies in this book reflect that practice with one crop or problem at times can be suitable to a seemingly different situation in a different crop often till an unexpected extent. The topics covered in this book will appeal to readers concerned with fields related to herbicides and pesticides and the content will be of great interest to them in their future prospects.