The death cycle of insects infected with cytoplasmic polyhedrosis virus is slow, generally 3 ~ 18 days or even longer. However, during the period of pests and diseases, the virus is constantly excreted with feces, infecting other healthy insects, and the reproductive ability of infected larvae decreases. At the same time, it can be passed on to the next generation through eggs, forming a virus epidemic in the pest population, thus effectively controlling the number of pests.
Progress has been made in using cytoplasmic polyhedrosis virus to control pests in China, using Dendrolimus punctatus CPV to control Dendrolimus punctatus in Shandong, and using Dendrolimus punctatus CPV to control Dendrolimus punctatus in Guangdong and Yunnan respectively, all of which have achieved results.