Host adaptation in model aphid pest Myzus persicae (Hemiptera: Aphididae): genetic, physiological, and behavioral perspectives

Myzus persicae Sulzer (Hemiptera: Aphididae), a highly adaptable and economically significant pest, poses a serious threat to agriculture due to its ability to infest a diverse range of host plants. Despite extensive research on aphid behavior and pest management, the specific mechanisms driving host adaptation in M. persicae remain inadequately explored. This review addresses this critical knowledge gap by examining the genetic, behavioral, and physiological mechanisms that enable M. persicae to adapt to various host plants. The formation of biotypes through genetic adaptation, including color polymorphism and detoxification processes, is explored as a key factor in the pest's survival and proliferation. Additionally, we analyze the behavioral strategies M. persicae employs in host selection and feeding preferences, influenced by host plant traits. Physiological adaptations, such as changes in digestive enzymes and life cycle modifications, further contribute to the aphid's capacity to overcome plant defenses. The review also considers the impact of environmental and host plant factors on these adaptations, providing a comprehensive understanding of the complex interactions between M. persicae and its hosts. By integrating these insights, the review proposes implications for the development of more targeted and sustainable pest management strategies. This work enhances our understanding of host adaptation in M. persicae and underscores the need for novel approaches in controlling this resilient pest, ultimately contributing to the advancement of integrated pest management (IPM) practices.