Used for measuring phenoloxidase (PO) activity in insect hemolymph, this ELISA kit supports research in insect immunology and host-pathogen interactions. It enables scientists to assess immune responses in insects exposed to bacteria, fungi, or parasites, making it valuable in studying innate immunity. Commonly applied in entomological studies, pest control research, and biological defense mechanism analysis. Also useful in environmental toxicology to evaluate immune disruption caused by pollutants or pesticides. Provides a sensitive and quantitative method for high-throughput screening in laboratory settings.