The integration of nanotechnology with advanced sensing techniques has revolutionized insecticide detection, offering unparalleled sensitivity and rapidity. By leveraging nanomaterials such as carbon nanotubes and gold nanoparticles, researchers have developed biosensors capable of detecting insecticides at incredibly low concentrations. Furthermore, the synergy of nanotechnology with microfluidics and 3D printing has enabled the creation of portable, cost-effective devices for on-site detection. These innovations hold immense promise for environmental monitoring, agricultural sustainability, and public health protection, driving towards safer and more efficient pest management strategies.