Granulosis Virus (Cyd-X, Carpovirusine)

The naturally occurring codling moth granulovirus belongs to the subclass B of the baculoviridae. Infection with granulosis virus is an acute insect disease with a short, rapid course. Incubation is rapid and death occurs 4 to 6 days after ingestion of virus particles. However, as with other baculovirus infections, the length of the incubation periods is influenced by temperature. As the disease progresses the dorsum of the integument turns intense pink; larvae become swollen and flaccid; shortly before or soon after death the integument ruptures. The applied virus is not very persistent in the environment and frequent applications may be necessary to achieve effective control of codling moth.