Harnessing Tachinid Parasitoids for Sustainable Pest Management in Agriculture

Abstract

Tachinid parasitoids (Diptera: Tachinidae) represent one of the most diverse and ecologically significant groups of flies, functioning as natural biological control agents in various ecosystems. They parasitize a wide range of insect hosts, primarily Lepidoptera and Coleoptera, contributing to the regulation of pest populations and ecological balance. This review highlights their taxonomy, host range, ecological significance, and the role they play in Integrated Pest Management (IPM). It also explores the physiological and behavioral mechanisms underlying parasitism, including host location cues, hormonal manipulation, and host parasitoid coevolution. Furthermore, the paper discusses environmental and ecological factors influencing their field success, such as habitat diversity, pesticide use, and climate change. Emerging biotechnological tools including genomics, bioinformatics, CRISPR-based genetic engineering, and microbial consortia offer new prospects for enhancing Tachinid efficacy in sustainable pest management. Despite challenges like habitat loss, operational failures, and incomplete knowledge of host selection behavior, ongoing research and ecological innovations promise to strengthen their integration into modern IPM systems and advance eco-friendly agriculture.