Viral insecticides mainly cause pathogenic or lethal effects on insects through the life activities of viruses. The active ingredients of viral insecticides with a long history of research in my country include nuclear polyhedrosis virus, NPV, and granular Virus Granulosis virus and Reoviridae cytoplasmic polyhedrosis virus Cytoplasmic polyhedrosis virus, CPV.
Main nuclear polyhedrosis virus are including Helicoverpa armigera NPV and Spodoptera exigua NPV, Spodoptera litura NPV, Autographa californica NPV, Mamestra brassicae NPV, etc. are the most diverse types of viral insecticides, Control various agricultural pests such as beet armyworm, cotton bollworm, tobacco budworm Heliothis assault Guenee, rice leaf roller, corn borer and cutworm Agrotis sp.; and insecticides with granular virus and cytoplasmic polyhedrosis virus as active ingredients There are 6 and 3 species respectively, and the main control targets are diamondback moth, Pieris rapae, rice leaf roller and pine caterpillar.
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