00000nam 2200000za 4500 9.840805 CaOODSP 20221107151931 cr ||||||||||| 170801s2009 oncao||#o f000 0 eng d CaOODSP eng n-cn--- Fo124-10/2009E-PDF Biology 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. gccst Forests gccst Pests Dedes, John. Canada. Natural Resources Canada. Canadian Forest Service. Biologie de la tordeuse occidentale de l'épinette (Choristoneura occidentalis) (CaOODSP)9.840822 Western spruce budworm (Choristoneura occidentalis) (CaOODSP)9.699831 http://publications.gc.ca PDF 4.94 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/Fo124-10-2009-eng.pdf 13467