Abstract Background Daphnis nerii cypovirus-23 (DnCPV-23) is a new type of cypovirus and has a lethal effect on the oleander hawk moth. Daphnis nerii which feeds on leave of Oleander and Catharanthus et al. After DnCPV-23 infection. the change of Daphnis nerii responses has not been reported. https://www.vwbag.com/product-category/rings/