The Science Behind Entomopathogenic Fungi: Mechanisms and Applications

Entomopathogenic fungi (EPF) offer a promising solution to mitigate crop losses caused by insect pests, addressing challenges in agricultural sustainability. EPF belong to diverse taxonomic groups and exhibit different modes of action, making them effective against a wide range of insect pests. EPF production involves optimizing growth conditions and selecting suitable substrates, including cost-effective agricultural and industrial by-products. Formulation includes enhancing shelf-life, viability, and application efficacy while minimizing environmental impacts. Various application methods, such as foliar spraying and seed treatment, facilitate the introduction of EPF into the agriculture ecosystem for effective pest management. EPF colonize the plants and not only defends against insect pests but also induces systemic resistance and antagonizes other plant pathogens. Despite their potential, EPF face several challenges, such as susceptibility to adverse field conditions, contamination by saprophytic fungi, and limited efficacy under suboptimal environmental conditions. Additionally, high production costs and the risk of environmental contamination with mycotoxins pose significant hurdles. Careful management and integration into Integrated Pest Management (IPM) programs are essential to maximize the benefits of EPF while minimizing potential contaminants. Addressing these challenges is crucial to realizing the full potential of EPF in sustainable crop protection strategies.