01519cam 2200325za 45009.840805CaOODSP20221107151931cr |||||||||||170801s2009 oncao||#o f000 0 eng dCaOODSPengn-cn---Fo124-10/2009E-PDFBiology of the Western spruce budworm (Choristoneura occidentalis) [electronic resource]. Version 2.1[Sault Ste. Marie, Ont.] : Natural Resources Canada, c2009.[2] p. : col. ill. Caption title.At head of title: Insect Production Services.Contact: John Dedes, Canadian Forest Service.Digitized edition from print produced 2014 [by Natural Resources Canada].Leaflet on the western spruce budworm-- a major defoliator of coniferous forests across western North America-- including information on life cycle, damage and nuisance, natural control and what can be done.gccstForestsgccstPestsDedes, John.Canada. Natural Resources Canada.Canadian Forest Service.Biologie de la tordeuse occidentale de l'épinette (Choristoneura occidentalis) (CaOODSP)9.840822Western spruce budworm (Choristoneura occidentalis) (CaOODSP)9.699831http://publications.gc.caPDF4.94 MBhttps://publications.gc.ca/collections/collection_2017/rncan-nrcan/Fo124-10-2009-eng.pdf