The book Insecticides in Pest Control - Impact, Challenges and Strategies has been prepared to explore insecticides of different chemical nature, delineating their characteristic features, use in agriculture and public health, benefits, and drawbacks. The impact of insecticides on target insect pests with the goal of maintaining their populations below threshold limits through sustainable approaches has been deliberated upon. The book comprises 17 chapters grouped into four sections, each of which covers a significant aspect of pest control using diverse insecticides. These chapters emphasize the role of insecticides in pest management, describing their modes of entry and diverse mechanisms of action at physical, physiological, biochemical, and molecular levels. The book also highlights the challenges and limitations in the use of these insecticides by focusing upon associated complications such as the development of resistance in target pests and detrimental effects on human health, nontarget organisms, and the environment. Pest management strategies using integrated control methods, synergies, biorational formulations derived from natural sources, bacteria, or plants, and innovative eco-safe approaches have been discussed in conjunction with the associated challenges, sustainable strategies, and future perspectives. I sincerely hope that this book will interest students and researchers and help them to recognize potential research areas.