title: Baculoviruses in populations of western spruce budworm.
abstract: Population studies of western spruce budworm, Choristoneura occidentalis, revealed that a baculovirus, ChocNPV, was widespread in outbreak populations over a broad geographical area of British Columbia, Canada although the rate of mortality was usually low (<5%). Elevated levels of ChocNPV-related mortality (≈20%) were found when western spruce budworm populations reached high densities (≈300 larvae per kg of Douglas-fir foliage) and contributed to declines in population densities in these areas. A subsample from budworm collections examined using a multiplex-PCR assay showed ChocNPV was the most prevalent virus but also often occurred in combination with a granulovirus, ChocGV and a cypovirus, CoCPV.
authors: Natural Resource Canada - Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, British Columbia V8Z 1M5, Canada. Electronic address: Vince.Nealis@NRCan-RNCac.gc.ca.
authors: V G
authors: VG
authors: Nealis
authors: Natural Resource Canada - Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, British Columbia V8Z 1M5, Canada.
authors: R
authors: R
authors: Turnquist
authors: Natural Resource Canada - Canadian Forest Service, Atlantic Forestry Centre, 1350 Regent Street, Fredericton, New Brunswick E3C 2G6, Canada.
authors: B
authors: B
authors: Morin
authors: Natural Resource Canada - Canadian Forest Service, Atlantic Forestry Centre, 1350 Regent Street, Fredericton, New Brunswick E3C 2G6, Canada.
authors: R I
authors: RI
authors: Graham
authors: Natural Resource Canada - Canadian Forest Service, Atlantic Forestry Centre, 1350 Regent Street, Fredericton, New Brunswick E3C 2G6, Canada.
authors: C J
authors: CJ
authors: Lucarotti
mesh_terms: D000818:Animals; D016367:Baculoviridae; D001955:British Columbia; D009036:Moths / Q000821:virology*; D060885:Multiplex Polymerase Chain Reaction; D028224:Pseudotsuga / Q000469:parasitology*
keywords: Baculovirus; Budworms; Ecology; Epidemiology