Mosquito densonucleosis virus and iridovirus were used to study the influence of temperature on their infectivity. Biological assays of mosquito densonucleosis virus were carried out in larvae of I-II instar of Aedes aegypti mosquitoes, those of mosquito iridovirus in larvae of Galleria mellonella. The rate of inactivation was found to be directly dependent on the dose of the heat treatment. Treatment at 60 degrees C led to complete loss of iridovirus infectivity; the virus activity declined considerably after treatment at 50 degrees and 40 degrees C for 60 min. Mosquito densonucleosis virus infectivity was eliminated completely at 65 degrees C. The decline of infectivity of both viruses was intermittent.
Aedes Animals