NATURAL OCCURRENCE OF VIRUSES OF THE CABBAGE LOOPER IN FIELD PLOTS
- 1 January 1970
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 102 (1) , 36-41
- https://doi.org/10.4039/ent10236-1
Abstract
Studies on non-treated plots at Harrow, Ontario, in 1967 and 1968 and at Kentville, Nova Scotia, from 1963 to 1968 inclusive showed that residues of viruses of the cabbage looper, Trichoplusia ni (Hübner), found in soil were related qualitatively and quantitatively to the virus residues on leaves of cruciferous plants grown in the plots and to mortality by viruses in the host populations. At Harrow where the cabbage looper is common and where virus diseases occur naturally in field populations, the viruses that occurred in the populations of the host built up in soil as the season progressed. At Kentville where the host is rare, virus was rarely found in soil or on foliage. The typical nuclear-polyhedrosis virus, an atypical nuclear-polyhedrosis virus that formed abnormally large polyhedra, and a granulosis virus were found at Harrow, with the typical nuclear-polyhedrosis virus predominating. Only the typical nuclear-polyhedrosis virus was detected at Kentville.Keywords
This publication has 6 references indexed in Scilit:
- Simultaneous infection with the nucleopolyhedrosis and granulosis viruses of Trichoplusia niJournal of Invertebrate Pathology, 1968
- Histopathology of the cabbage looper, Trichoplusia ni, infected with a nuclear polyhedrosisJournal of Invertebrate Pathology, 1968
- Persistence of a granulosis virus of Pieris rapae in soilJournal of Invertebrate Pathology, 1968
- THE PERSISTENCE OF A NUCLEAR POLYHEDROSIS VIRUS IN THE HABITAT OF THE HOST INSECT, TRICHOPLUSIA NI II.: POLYHEDRA IN SOILThe Canadian Entomologist, 1967
- THE PERSISTENCE OF A NUCLEAR POLYHEDROSIS VIRUS IN THE HABITAT OF THE HOST INSECT, TRICHOPLUSIA NI: I. POLYHEDRA DEPOSITED ON FOLIAGEThe Canadian Entomologist, 1967
- A new nuclear polyhedrosis of the cabbage looper, Trichoplusia niJournal of Invertebrate Pathology, 1966