Dissemination of Viruses Against the Spruce Budworm Choristoneura fumiferana (Clemens)
- 1 September 1962
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 94 (9) , 966-969
- https://doi.org/10.4039/ent94966-9
Abstract
The spruce budworm, Choristoneura fumiferana (Clemens), is susceptible to a nuclear polyhedrosis virus and to a granulosis virus which may occur as single infections (Bergold 1950, 1951) or as double infections (Bird, 1959). Laboratory studies have shown that relatively heavy concentrations of either virus musr be injected or fed to hudworm larvae to cause infection and death. In one quantitative study Bergold (1951) estimated that the intralymphal LD50 of the polyhedrosis virus for the budworm is about 5000 times that for the silkworm, Bombyx mori L., when each is administered to its natural host. Field tests of the viruses were made in 1959 and 1960 to determine whether infection and mortality would result from spraying suspensions in infested forests.Keywords
This publication has 2 references indexed in Scilit:
- THE POLYHEDRAL DISEASE OF THE SPRUCE BUDWORM,CHORISTONEURA FUMIFERANA(CLEM.) (LEPIDOPTERA: TORTRICIDAE)Canadian Journal of Zoology, 1951
- THE MULTIPLICATION OF INSECT VIRUSES AS ORGANISMSCanadian Journal of Research, 1950