Chemical herbicides are known to be very effective in controlling weeds. However, increasing public concern on environmental issues requires alternative weed management systems, which are less chemical dependent or based on naturally occurring compounds. To solve these problems, it is necessary to develop sustainable weed management systems that may reduce herbicide dependency. This book provides a information carried out to investigate the herbicidal potential of cultural filtrates of some native fungal pathogens. It concludes that cultural filtrates of some native fungal pathogens. It concludes that cultural filtrates of fungi contain herbicidal compounds for the management of some noxious weed of India. This book is very useful for those who are engaged in biorational or ecofriendly alternatives of synthetic herbicide for weed control.