Biopesticides like viruses, bacteria, fungi, algae, and nematodes are being used more because chemical pesticides harm health and the environment. Biopesticides are a safer option for controlling pests and diseases, with successful results in labs and fields. These products are now available in the market. Research is ongoing to make biopesticides more affordable and effective for integrated pest management. Future work will focus on developing new biopesticides, including nano-biopesticides.