In Chapter One, the authors discuss the gene silencing tool RNA interference, or RNAi, which functions at both transcriptional and post-transcriptional levels. In Chapter Two, the authors study the origins of genome engineering, including its adaptation from prokaryotic to eukaryotic systems and applications. In Chapter Three, the authors discuss the utilisation of different biotechnologies for insect pest management in plants, as well as give insight into recently developed approaches of genome editing for high through-put pest management. Closing the book with Chapter Four, the authors discuss how vital genetic resources, such as the ability to withstand scarcity of nutrients and water as well as to withstand pests and diseases, may be secured for future use in order to improve crops.