The demand for sustainable agricultural practices has led to an increased interest in using polysaccharide carriers for the delivery of fungicides. This review provides a comprehensive evaluation of chitosan, alginate, and cellulose as effective delivery systems, focusing on their respective loading capacities and controlled release profiles. Recent advancements in the synthesis and characterization of these biopolymers highlight their potential to improve fungicide efficacy while reducing environmental impact. Comparative analysis of existing studies reveals variability in encapsulation efficiency and release kinetics, which stem from the unique physicochemical properties of each polysaccharide. Additionally, we address ongoing debates regarding the best carrier choice, emphasizing the importance of understanding the interactions between carrier composition, environmental conditions, and fungicide performance. The objective of this review is to clarify the advantages and limitations of polysaccharide-based carriers, identify key factors affecting their effectiveness, and suggest future research directions aimed at developing eco-friendly fungicide formulations. Through this exploration, we aim to contribute valuable insights that will inform the design of sustainable pesticide delivery systems, aligning with the goals of contemporary agriculture and environmental safety. © 2025 Elsevier B.V., All rights reserved.