00000000nam 2200000za 4500
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003CaOODSP
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008180704t19811980abc     o    f000 0 eng d
040 |aCaOODSP|beng
043 |an-cn-mb|an-cn-sn
0861 |aFo29-2/11-1981E-PDF
24500|aWeather and forest insect population trends |h[electronic resource] / |c[W.G.H. lves].
260 |aEdmonton : |bNorthern Forest Research Centre, |cc1980.
300 |a4 p.
4901 |aForest management note ; |v11
500 |aCaption title.
500 |a"December 1981."
500 |aDigitized edition from print.
504 |aIncludes bibliographic references (p. 4).
520 |a"A recently completed study of Forest Insect and Disease Survey (Canadian Forestry Service) data collected in Manitoba and Saskatchewan from 1945 to 1969 has shown that weather influences the population trends of 21 forest insect defoliators (Ives 1981). This note summarizes some results of interest to forest managers"--P. [1].
69207|2gccst|aWeather
69207|2gccst|aInsects
69207|2gccst|aForests
7001 |bIves, W. G. H.
7101 |aCanada. |bEnvironment Canada.
7102 |aNorthern Forest Research Centre (Canada)
7102 |aCanadian Forestry Service.
7101 |aCanada. |bNatural Resources Canada. |bCanadian Forest Service.
830#0|aForest management note ;|v11|w(CaOODSP)9.845990
85640|qPDF|s167 KB|uhttps://publications.gc.ca/collections/collection_2018/rncan-nrcan/Fo29-2/Fo29-2-11-1981-eng.pdf