Partiti-like viruses from African armyworm increase larval and pupal mortality of a novel host: the Egyptian cotton leafworm.

Taken together with the previous findings in the novel host S. frugiperda, these results indicate a parasitic relationship between the partiti-like viruses and novel insect hosts, suggesting a possible use and novel pest management strategy through the artificial host shift of novel viruses. © 2021 Society of Chemical Industry.