Linear regression analysis of probit mortality versus several concentrations of nucleo- polyhedrosis virus of Neodiprion sertifer resulted in the equation Y = 2.170 + 0.872X. An LC50 was calculated at 1758 PIB/mL Also, the incubation time of the virus was dependent on Its concentration.
Mohamed, M. A.; Coppel, H. C.; and Podgwaite, J. D.
"Bioassay of the Nucleopolyhedrosis Virus of Neodiprion Sertifer (Hymenoptera: Diprionidae),"
The Great Lakes Entomologist, vol 15
Available at: https://scholar.valpo.edu/tgle/vol15/iss2/2