Pesticides are harmful chemicals used to control pests but can also harm humans and the environment. Scientists are now developing new types of pesticides called nano-biopesticides that are safer and more effective. These nano-biopesticides are made using nanotechnology and natural substances like microbes and plant extracts. They are designed to target pests specifically and release slowly to reduce harm to beneficial organisms. By using these new pesticides, we can protect crops without polluting the environment or risking human health.