The viral symbiont of the parasitoid, Cotesia plutellae (Hymenoptera : Braconidae), has genes that are expressed and subsequently alter the physiology of its lepidopteran host, Plutella xylostella, in favor of the development of its parasitoid host. The viral gene products help the parasitoid to evade its host's cellular and humoral immune response. P. xylostella hemocytes are found to have 45% less binding capacity with heat-killed Escherichia coli suspended in parasitized larvae plasma than with same bacteria suspended in non-parasitized larval plasma. Lectin has been known to play a role in non-self recognition that is important in immune response. We cloned lectin-like gene (555 bp) from C. plutellae bracovirus cDNA and expressed it in bacteria. The viral lectin (20 kDa) had high glucose affinity. The addition of glucose into the parasitized plasma rescued the lost binding capacity of the hemocytes to bacteria.